A new type of longitudinally rotating multi-isolating intelligent circuit breaker unit

Abstract

The present invention belongs to the technical field of intelligent control of high-voltage switch cabinet equipment, and provides a novel longitudinally rotating multi-isolating break intelligent circuit breaker unit, comprising a cabinet body, in which an instrument installation compartment, a busbar installation compartment, a circuit breaker installation compartment, and an inlet and outlet cable installation compartment are sequentially arranged, a trolley frame is slidably arranged in the circuit breaker installation compartment, a plurality of groups of sealed poles are horizontally arranged in the trolley frame, a plurality of groups of isolating switches are respectively arranged on both sides of the sealed poles, and an operating mechanism is fixedly arranged on the trolley frame. A novel longitudinally rotating multi-isolating break intelligent circuit breaker unit effectively limits the speed of a transverse roller through the cooperation of an elastic baffle and two support rods, and at the same time, under the guiding action of the elastic baffle, the instantaneous impact force on the transverse roller is reduced, and the stability of the transverse roller during deceleration is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent control of high-voltage switch cabinet equipment, and in particular relates to a novel longitudinally rotating multi-isolating fracture intelligent circuit breaker unit. Background Art

[0002] High-voltage switchgear refers to electrical appliances with a rated voltage of 1kV and above, which are mainly used for opening and closing conductive circuits. It is a general term for high-voltage switches and their corresponding control, measurement, protection, and regulation devices, as well as accessories, casings, supports, and their electrical and mechanical connections. It is an important control device for connecting and disconnecting circuits, removing and isolating faults.

[0003] The existing publication number CN210608082U is a locking device for a sliding door of a high-voltage cabinet switch room, comprising a scissor difference mechanism, wherein the outer wall surface of the rotating shaft is slidably connected with a self-locking mechanism, and the right end of the self-locking mechanism is fixedly connected with a circuit breaker device. When the device is moved out of the circuit breaker, the guide plate moves to the right accordingly, and the first guide shaft at the left end of the guide plate moves to the right, so that the guide bar rotates in a direction away from the guide plate with the first guide shaft as the center of the circle, thereby closing the sliding door up and down, and when the guide plate moves to the right until the sliding door is closed, the rotating shaft is clamped on the outer wall surface of the limiting groove, so that the device remains in a locked state and the sliding door cannot be opened at this time, so as to solve the problem of personal injury caused by the accidental opening of the sliding door when the circuit breaker is moved out during equipment maintenance. When the operation is completed, the rotating shaft is pushed upward away from the limiting groove to restore the circuit breaker position.

[0004] Existing high-voltage equipment is very dangerous when operating. When the equipment is moved for maintenance, it is easy to be damaged by vibration, or the collision force between the base and the cabinet is too large, causing the equipment to vibrate and accidentally close the switch, causing the equipment to be energized, causing accidental electric shock to personnel. In this solution, the guide plate is fixed when it is moved out and how to reset the guide plate is achieved only by the clamping of the clamping structure. However, whether the guide plate will collide with the high-voltage cabinet during movement, causing vibration damage to the equipment, and whether the guide plate can be braked in time due to unexpected situations during movement, this solution does not provide an effective solution. Summary of the invention

[0005] The purpose of the present invention is to provide a novel longitudinally rotating multi-isolating break intelligent circuit breaker unit, aiming to solve the technical problem of insufficient stability during the maintenance and movement of high-voltage equipment in the prior art.

[0006] The present invention is implemented as follows: a novel longitudinally rotating multi-isolating break intelligent circuit breaker unit comprises a cabinet, wherein the cabinet is provided with an instrument installation compartment, a busbar installation compartment, a circuit breaker installation compartment, and an inlet and outlet cable installation compartment in sequence, wherein a trolley frame is slidably provided in the circuit breaker installation compartment, wherein multiple groups of sealed poles are horizontally arranged in the trolley frame, and multiple groups of isolating switches are respectively provided on both sides of the sealed poles, wherein an operating mechanism is fixedly provided on the trolley frame, and the operating mechanism can simultaneously drive all the isolating switches to perform longitudinal rotation to realize opening and closing operations;

[0007] A plurality of longitudinal rollers are rotatably arranged on both sides of the trolley frame, a bottom guide rail is fixedly arranged on the side wall of the cabinet, and the longitudinal rollers are all rollingly connected to the corresponding bottom guide rails;

[0008] The side wall of the handcart frame is provided with a slide groove, a slide seat is slidably provided in the slide groove, a No. 1 spring is provided between the slide seat and the inner end surface of the slide groove, a shock-absorbing cotton strip is provided in the No. 1 spring, the slide seat is rotatably connected with a transverse roller, a middle guide rail is provided on one side of the bottom guide rail, and the transverse roller is rotatably connected in the middle guide rail;

[0009] A self-locking mechanism is provided between the sliding seat and the slide groove, and limit seats are provided at both ends of the middle guide rail. The outer side surface of the limit seat in contact with the transverse roller is arc-shaped. When the trolley frame moves to the two ends of the middle guide rail, the self-locking mechanism can pop out and abut against the middle guide rail under the squeezing action of the transverse roller and the limit seat;

[0010] A deceleration mechanism is arranged in the middle guide rail, and the deceleration mechanism can limit the speed of the handcart frame.

[0011] Further technical solution: the deceleration mechanism includes an elastic baffle, a limit strip, a guide seat and a support assembly;

[0012] The elastic baffle and the limit bar are both fixedly connected to the inner wall of the middle guide rail, the elastic baffle passes through the limit bar, and the limit bar is arranged in the middle of the elastic baffle, and support components for elastically supporting the elastic baffle are arranged on both sides of the limit bar;

[0013] A groove cavity is arranged in the side wall of the middle guide rail, the guide seat is slidably connected in the groove cavity, two inclined surfaces are arranged opposite to each other on the guide seat, and two supporting components are respectively in contact with the two inclined surfaces of the guide seat.

[0014] Further technical solution: the support assembly includes a support rod and a second spring, the support rod is slidably connected to the side wall of the groove cavity, one end of the support rod abuts against the elastic blocking sheet, and the other end of the support rod abuts against the inclined surface of the guide seat;

[0015] The No. 2 spring is sleeved on the outside of the support rod, and the No. 2 spring abuts against the elastic blocking sheet.

[0016] Further technical solution: a plane is connected between the two inclined surfaces of the guide seat, and the plane is parallel to the inner guide surface of the middle guide rail.

[0017] Further technical solution: the self-locking mechanism includes a locking column, a transmission assembly and a limit assembly;

[0018] The lock column is slidably connected to the sliding seat, and the transmission assembly is arranged between the sliding seat and the lock column. The transmission assembly can drive the lock column to move in the opposite direction relative to the sliding seat. When the sliding seat compresses spring No. 1 to a predetermined position, the limit assembly can limit the sliding seat.

[0019] Further technical solution: the transmission assembly includes a rotating shaft, a first gear, a second gear, a first rack plate and a second rack plate;

[0020] The rotating shaft is rotatably connected to the inner side surface of the sliding groove, the No. 1 gear and the No. 2 gear are both fixedly connected to the rotating shaft, the No. 1 rack plate is fixedly connected to the sliding seat, and the No. 2 rack plate is fixedly connected to the locking column, the No. 1 gear is meshed with the No. 1 rack plate, and the No. 2 gear is meshed with the No. 2 rack plate.

[0021] Further technical solution: The diameter of the first gear is smaller than that of the second gear.

[0022] Further technical solution: the limit assembly includes a pull rod, a hook and a No. 3 spring;

[0023] The pull rod is slidably connected to the inner wall of the cabinet, a hook is provided on one side of the No. 1 spring, all the hooks are fixedly connected to the pull rod, a No. 3 spring is connected between the hook and the cabinet, a clamping ring is fixedly connected to the sliding seat, and the hook can be clamped with the clamping ring.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. A new type of longitudinally rotating multi-isolation break intelligent circuit breaker unit. When the equipment on the trolley frame needs to be repaired, first release the limit between the self-locking mechanism and the middle guide rail, and then pull the trolley frame. At this time, the longitudinal roller rolls along the bottom guide rail, and the transverse roller rolls along the middle guide rail. The trolley frame is guided by the transverse roller. At this time, under the push of the No. 1 spring, the sliding seat elastically abuts against the middle guide rail. At the same time, the vibration force during the movement of the trolley frame can be absorbed by the shock-absorbing cotton strip and the No. 1 spring, thereby improving the stability of the trolley frame during movement;

[0026] 2. A novel longitudinally rotating multi-isolating fracture intelligent circuit breaker unit, when a deceleration mechanism is provided in the middle guide rail, the deceleration mechanism can limit the speed of the trolley frame to prevent the trolley frame from moving too fast, thereby colliding with the cabinet during the pushing and pulling process, thereby causing vibration damage to the sealed pole, operating mechanism, isolating switch and other equipment; when the trolley frame moves to both ends of the middle guide rail, under the squeezing action of the transverse roller and the limit seat, the self-locking mechanism can pop out and abut against the middle guide rail to ensure the stability of the entire device during maintenance;

[0027] 3. A new type of longitudinally rotating multi-isolation break intelligent circuit breaker unit, which effectively limits the speed of the transverse roller through the cooperation of the elastic baffle and the two support rods. At the same time, under the guiding effect of the elastic baffle, the instantaneous impact force of the transverse roller during speed limiting is reduced, and the stability of the transverse roller during deceleration is increased, thereby ensuring the stability of the trolley frame during movement and increasing the safety of all devices of the trolley frame during movement;

[0028] 4. A new type of longitudinally rotating multi-isolation break intelligent circuit breaker unit. When the transverse roller moves too fast from left to right on the middle guide rail, the left support rod pushes the elastic baffle to limit the speed of the transverse roller first. At this time, the right support rod cannot be reset under the abutment of the guide seat, so that the elastic baffle hinders the transverse roller, restricting the continued movement of the transverse roller, and then braking the transverse roller in time to avoid the impact between the trolley frame and the cabinet body caused by the excessive movement of the transverse roller; at this time, under the obstruction of the elastic baffle, the sliding seat compresses the No. 1 spring to a certain extent, the self-locking mechanism is started and further locked and fixed with the middle guide rail, increasing the braking effect on the transverse roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the equipment on the handcart frame in the present invention;

[0031] Figure 3 It is a schematic diagram of the cooperation between the roller and the bottom guide rail;

[0032] Figure 4 It is a structural schematic diagram of the reduction mechanism;

[0033] Figure 5 It is a structural schematic diagram of the self-locking mechanism;

[0034] Figure 6 It is a schematic diagram of the connection between the sliding seat and the self-locking mechanism;

[0035] Figure 7 It is a schematic diagram of the structure of the transmission component.

[0036] In the attached figure: 1, cabinet; 2, longitudinal roller; 3, bottom guide rail; 4, sliding seat; 5, spring No. 1; 6, transverse roller; 7, middle guide rail; 8, self-locking mechanism; 81, locking column; 82, transmission assembly; 821, rotating shaft; 822, gear No. 1; 823, gear No. 2; 824, rack plate No. 1; 825, rack plate No. 2; 83, limit assembly; 831, pull rod; 832, hook; 833, spring No. 3; 9, speed reduction mechanism; 9 1. Elastic baffle; 92. Limiting strip; 93. Guide seat; 94. Support assembly; 941. Support rod; 942. No. 2 spring; 10. Shock-absorbing cotton strip; 11. Instrument installation compartment; 12. Busbar installation compartment; 13. Circuit breaker installation compartment; 14. Inlet and outlet cable installation compartment; 15. Cart frame; 16. Sealed pole; 17. Operating mechanism; 18. Disconnector; 19. Limiting seat; 20. Groove cavity; 21. Slide groove; 22. Snap ring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0039] like Figure 1-Figure 7 As shown, a novel longitudinally rotating multi-isolating break intelligent circuit breaker unit comprises a cabinet 1, wherein the cabinet 1 is provided with an instrument installation compartment 11, a busbar installation compartment 12, a circuit breaker installation compartment 13, and an inlet and outlet cable installation compartment 14 in sequence, wherein a trolley frame 15 is slidably provided in the circuit breaker installation compartment 13, wherein a plurality of groups of sealed poles 16 are horizontally arranged in the trolley frame 15, and a plurality of groups of isolating switches 18 are respectively provided on both sides of the sealed poles 16, wherein an operating mechanism 17 is fixedly provided on the trolley frame 15, and the operating mechanism 17 can simultaneously drive all the isolating switches 18 to perform longitudinal rotation to realize opening and closing operations;

[0040] A plurality of longitudinal rollers 2 are rotatably disposed on both sides of the trolley frame 15, a bottom guide rail 3 is fixedly disposed on the side wall of the cabinet body 1, and the longitudinal rollers 2 are all rollingly connected to the corresponding bottom guide rail 3;

[0041] The side wall of the handcart frame 15 is provided with a slide groove 21, a slide seat 4 is slidably provided in the slide groove 21, a No. 1 spring 5 is provided between the slide seat 4 and the inner end surface of the slide groove 21, a shock-absorbing cotton strip 10 is provided in the No. 1 spring 5, the slide seat 4 is rotatably connected with a transverse roller 6, a middle guide rail 7 is provided on one side of the bottom guide rail 3, and the transverse roller 6 is rollingly connected in the middle guide rail 7;

[0042] A self-locking mechanism 8 is provided between the sliding seat 4 and the slide groove 21, and a limit seat 19 is provided at both ends of the middle guide rail 7. The outer side of the limit seat 19 in contact with the transverse roller 6 is arc-shaped. When the trolley frame 15 moves to the two ends of the middle guide rail 7, under the squeezing action of the transverse roller 6 and the limit seat 19, the self-locking mechanism 8 can pop out and abut against the middle guide rail 7 and be fixed;

[0043] The middle guide rail 7 is provided with a speed reduction mechanism 9 , and the speed reduction mechanism 9 can limit the speed of the handcart frame 15 .

[0044] In the above scheme, when it is necessary to inspect and repair the equipment on the handcart frame 15, first release the limit between the self-locking mechanism 8 and the middle guide rail 7, and then pull the handcart frame 15. At this time, the longitudinal roller 2 rolls along the bottom guide rail 3, and the transverse roller 6 rolls along the middle guide rail 7. The handcart frame 15 is guided by the transverse roller 6. At this time, under the push of the No. 1 spring 5, the sliding seat 4 elastically abuts against the middle guide rail 7. At the same time, the shock-absorbing cotton strip 10 cooperates with the No. 1 spring 5 to absorb the vibration force during the movement of the handcart frame 15, thereby improving the stability of the handcart frame 15 during movement.

[0045] When a deceleration mechanism 9 is provided in the middle guide rail 7, the deceleration mechanism 9 can limit the speed of the trolley frame 15 to prevent the trolley frame 15 from moving too fast and colliding with the cabinet 1 during the pushing and pulling process, thereby causing vibration damage to the sealed pole 16, the operating mechanism 17, the isolating switch 18 and other equipment; when the trolley frame 15 moves to the two ends of the middle guide rail 7, under the squeezing action of the transverse roller 6 and the limit seat 19, the self-locking mechanism 8 can pop out and abut and fix with the middle guide rail 7, thereby ensuring the stability of the entire device during maintenance.

[0046] like Figure 3 and Figure 4 As shown, a new embodiment of the present invention is provided, wherein the deceleration mechanism 9 comprises an elastic baffle 91, a limit bar 92, a guide seat 93 and a support assembly 94; the elastic baffle 91 and the limit bar 92 are both fixedly connected to the inner wall of the middle guide rail 7, the elastic baffle 91 passes through the limit bar 92, and the limit bar 92 is arranged in the middle of the elastic baffle 91, and support assemblies 94 for elastically supporting the elastic baffle 91 are arranged on both sides of the limit bar 92; a groove cavity 20 is arranged in the side wall of the middle guide rail 7, the guide seat 93 is slidably connected in the groove cavity 20, two inclined surfaces are relatively arranged on the guide seat 93, and two support assemblies 94 are respectively abutted against the two inclined surfaces of the guide seat 93.

[0047] The support assembly 94 includes a support rod 941 and a No. 2 spring 942. The support rod 941 is slidably connected to the side wall of the groove cavity 20. One end of the support rod 941 abuts against the elastic baffle 91, and the other end of the support rod 941 abuts against the inclined surface of the guide seat 93; the No. 2 spring 942 is sleeved on the outside of the support rod 941, and the No. 2 spring 942 abuts against the elastic baffle 91.

[0048] In the above scheme, when the transverse roller 6 rolls from left to right on the middle guide rail 7 to the side of the elastic baffle 91, the transverse roller 6 squeezes the elastic baffle 91, and the support rod 941 on the left side is forced to move into the groove cavity 20. At this time, the No. 2 spring 942 on the outer side of the left support rod 941 is forced to shrink. Under the action of the reverse thrust of the No. 2 spring 942, the transverse roller 6 is pushed in the horizontal direction by the elastic baffle 91; in the vertical direction, under the push of the elastic baffle 91, the sliding seat 4 moves into the sliding groove 21. At this time, the No. 1 spring 5 is forced to shrink. Under the action of the vertical pressure, the squeezing force between the transverse roller 6 and the middle guide rail 7 increases, thereby limiting the speed of the transverse roller 6.

[0049] During the above process, when the left support rod 941 moves into the groove cavity 20, the guide seat 93 moves rightward along the inner end surface of the groove cavity 20 under the push of the left support rod 941, and the right support rod 941 moves toward the outside of the groove cavity 20. After the transverse roller 6 passes through the left support rod 941, the left support rod 941 is reset under the action of the corresponding No. 2 spring 942, and the right support rod 941 repeats the second speed limit of the transverse roller 6 under the action of the corresponding No. 2 spring 942.

[0050] Through the cooperation of the elastic baffle 91 and the two support rods 941, the speed of the transverse roller 6 is effectively limited. At the same time, under the guiding action of the elastic baffle 91, the instantaneous impact force on the transverse roller 6 during speed limiting is reduced, and the stability of the transverse roller 6 during deceleration is increased, thereby ensuring the stability of the trolley frame 15 during movement and increasing the safety of all devices of the trolley frame 15 during movement.

[0051] like Figure 4 As shown, it is a new embodiment provided by the present invention, a plane is connected between the two inclined surfaces of the guide seat 93, and the plane is parallel to the inner guide surface of the middle guide rail 7;

[0052] When the transverse roller 6 moves too fast from left to right on the middle guide rail 7, the support rod 941 on the left side pushes the guide seat 93, and the guide seat 93 is subjected to a large impact force, resulting in the guide seat 93 moving too much to the right in the groove cavity 20, causing the support rod 941 on the right side to break away from the inclined surface on the guide seat 93 and abut against the plane on the guide seat 93. At this time, the support rod 941 on the right side cannot be reset under the abutment of the guide seat 93, and the elastic baffle 91 hinders the transverse roller 6, restricting the continued movement of the transverse roller 6, and then braking the transverse roller 6 in time to avoid the transverse roller 6 moving too fast and causing an impact between the trolley frame 15 and the cabinet body 1; at this time, under the obstruction of the elastic baffle 91, the sliding seat 4 compresses the No. 1 spring 5 to a certain extent, and the self-locking mechanism 8 is started and further locked and fixed with the middle guide rail 7, thereby increasing the braking effect on the transverse roller 6.

[0053] like Figure 5-Figure 7 As shown, a new embodiment of the present invention is provided, the self-locking mechanism 8 includes a locking column 81, a transmission assembly 82 and a limiting assembly 83; the locking column 81 is slidably connected to the sliding seat 4, and the transmission assembly 82 is arranged between the sliding seat 4 and the locking column 81, and the transmission assembly 82 can drive the locking column 81 to move in the opposite direction relative to the sliding seat 4, and when the sliding seat 4 compresses the No. 1 spring 5 to a predetermined position, the limiting assembly 83 can limit the sliding seat 4.

[0054] In the above scheme, when the sliding seat 4 compresses the No. 1 spring 5, the transmission assembly 82 drives the lock column 81 to move in the opposite direction, and the lock column 81 extends to the outside of the sliding seat 4. When the No. 1 spring 5 is compressed to a certain extent, the limit assembly 83 can limit the sliding seat 4. At this time, the lock column 81 is abutted and fixed with the middle guide rail 7, so that the trolley frame 15 is fixed in a fixed position of the cabinet 1.

[0055] like Figure 7 As shown, it is a new embodiment provided by the present invention, the transmission assembly 82 includes a rotating shaft 821, a first gear 822, a second gear 823, a first rack plate 824 and a second rack plate 825; the rotating shaft 821 is rotatably connected to the inner side of the slide slot 21, the first gear 822 and the second gear 823 are both fixedly connected to the rotating shaft 821, the first rack plate 824 is fixedly connected to the sliding seat 4, and the second rack plate 825 is fixedly connected to the locking column 81, the first gear 822 is meshed with the first rack plate 824, and the second gear 823 is meshed with the second rack plate 825. The diameter of the first gear 822 is smaller than that of the second gear 823.

[0056] In the above scheme, when the sliding seat 4 compresses the No. 1 spring 5, the No. 1 rack plate 824 on the sliding seat 4 pushes the No. 1 gear 822 to rotate. At this time, the rotating shaft 821 drives the No. 2 gear 823 to rotate. The No. 2 gear 823 drives the lock column 81 to extend to the outside of the sliding seat 4 by engaging with the No. 2 rack plate 825. Since the diameter of the No. 1 gear 822 is smaller than that of the No. 2 gear 823, the moving speed and moving distance of the lock column 81 to the outside of the sliding seat 4 can be increased.

[0057] like Figure 5 As shown, a new embodiment of the present invention is provided, the limit assembly 83 includes a pull rod 831, a hook 832 and a No. 3 spring 833; the pull rod 831 is slidably connected to the inner wall of the cabinet 1, a hook 832 is provided on one side of the No. 1 spring 5, all the hooks 832 are fixedly connected to the pull rod 831, a No. 3 spring 833 is connected between the hook 832 and the cabinet 1, the sliding seat 4 is fixedly connected with a snap ring 22, and the hook 832 can be snapped with the snap ring 22.

[0058] When the trolley frame 15 is pulled out of the cabinet 1 or pushed into the cabinet 1, the transverse roller 6 rolls along the middle guide rail 7 and contacts the limit seat 19 at the end of the middle guide rail 7. At this time, under the guidance of the limit seat 19, the sliding seat 4 moves into the slide groove 21. After applying sufficient thrust to the trolley frame 15, the No. 3 spring 833 pushes the hook 832 to clamp and fix the clamping ring 22 on the sliding seat 4. At this time, the hook 832 restricts the sliding seat 4 from resetting, resulting in the locking column 81 extending toward the sliding seat 4 and being unable to retract under the drive of the transmission assembly 82, thereby making the locking column 81 It is locked and fixed with the inner guide surface of the middle guide rail 7, so that the trolley frame 15 is fixedly connected to the cabinet 1. When the sealed pole 16, operating mechanism 17, isolating switch 18 and other equipment on the trolley frame 15 are to be inspected and repaired, the pull rod 831 on the trolley frame 15 is pulled, and the pull rod 831 drives the hook 832 to release the limit on the retaining ring 22 on the sliding seat 4. Under the thrust of the No. 1 spring 5, the sliding seat 4 drives the transverse roller 6 to move outward from the slide groove 21. At the same time, the lock column 81 releases the contact with the middle guide rail 7, so that the trolley frame 15 can move freely in the cabinet 1.

[0059] Working principle:

[0060] In the above scheme, the trolley frame 15 is pulled, and the longitudinal roller 2 rolls along the bottom guide rail 3, and the transverse roller 6 rolls along the middle guide rail 7. The trolley frame 15 is guided by the transverse roller 6. At this time, under the push of the No. 1 spring 5, the sliding seat 4 elastically abuts against the middle guide rail 7. At the same time, the vibration force of the trolley frame 15 during movement can be absorbed by the shock-absorbing cotton strip 10 in cooperation with the No. 1 spring 5, thereby improving the stability of the trolley frame 15 during movement.

[0061] When the transverse roller 6 rolls from left to right on the middle guide rail 7 to the side of the elastic baffle 91, the transverse roller 6 squeezes the elastic baffle 91, and the support rod 941 on the left side is forced to move into the groove cavity 20. At this time, the No. 2 spring 942 on the outer side of the left support rod 941 is forced to shrink. Under the action of the reverse thrust of the No. 2 spring 942, the transverse roller 6 is pushed in the horizontal direction by the elastic baffle 91; in the vertical direction, under the push of the elastic baffle 91, the sliding seat 4 moves into the sliding groove 21. At this time, the No. 1 spring 5 is forced to shrink. Under the action of the vertical pressure, the squeezing force between the transverse roller 6 and the middle guide rail 7 increases, thereby limiting the speed of the transverse roller 6.

[0062] During the above process, when the left support rod 941 moves into the groove cavity 20, the guide seat 93 moves rightward along the inner end surface of the groove cavity 20 under the push of the left support rod 941, and the right support rod 941 moves toward the outside of the groove cavity 20. After the transverse roller 6 passes through the left support rod 941, the left support rod 941 is reset under the action of the corresponding No. 2 spring 942, and the right support rod 941 repeats the second speed limit of the transverse roller 6 under the action of the corresponding No. 2 spring 942.

[0063] Through the cooperation of the elastic baffle 91 and the two support rods 941, the speed of the transverse roller 6 is effectively limited. At the same time, under the guiding action of the elastic baffle 91, the instantaneous impact force on the transverse roller 6 during speed limiting is reduced, and the stability of the transverse roller 6 during deceleration is increased, thereby ensuring the stability of the trolley frame 15 during movement and increasing the safety of all devices of the trolley frame 15 during movement.

[0064] When the transverse roller 6 moves too fast from left to right on the middle guide rail 7, the left support rod 941 pushes the elastic baffle 91 to limit the speed of the transverse roller 6 first, and the left support rod 941 pushes the guide seat 93 in the opposite direction. When the impact force on the guide seat 93 is large, the guide seat 93 moves too much to the right in the groove cavity 20, causing the right support rod 941 to break away from the inclined surface of the guide seat 93 and abut against the plane of the guide seat 93. At this time, the right support rod 941 cannot be reset under the abutment of the guide seat 93, thereby causing the elastic baffle 91 to push the transverse roller 6 The lateral roller 6 is restrained and restricted from continuing to move, and the lateral roller 6 is braked in time to avoid the lateral roller 6 moving too fast and causing an impact between the trolley frame 15 and the cabinet 1; at this time, under the obstruction of the elastic baffle 91, the sliding seat 4 compresses the No. 1 spring 5, and the transmission assembly 82 drives the lock column 81 to move in the opposite direction, and the lock column 81 extends to the outside of the sliding seat 4. When the No. 1 spring 5 is compressed to a certain extent, the limit assembly 83 can limit the sliding seat 4. At this time, the lock column 81 and the middle guide rail 7 are further locked and fixed, thereby increasing the braking effect on the lateral roller 6.

[0065] When the trolley frame 15 is pulled out of the cabinet 1 or pushed into the cabinet 1, the transverse roller 6 rolls along the middle guide rail 7 and contacts the limit seat 19 at the end of the middle guide rail 7. At this time, under the guidance of the limit seat 19, the sliding seat 4 moves into the slide groove 21. After applying sufficient thrust to the trolley frame 15, the No. 3 spring 833 pushes the hook 832 to clamp and fix the clamping ring 22 on the sliding seat 4. At this time, the hook 832 restricts the sliding seat 4 from resetting, resulting in the locking column 81 extending toward the sliding seat 4 and being unable to retract under the drive of the transmission assembly 82, thereby making the locking column 81 It is locked and fixed with the inner guide surface of the middle guide rail 7, so that the trolley frame 15 is fixedly connected to the cabinet 1. When the sealed pole 16, operating mechanism 17, isolating switch 18 and other equipment on the trolley frame 15 are to be inspected and repaired, the pull rod 831 on the trolley frame 15 is pulled, and the pull rod 831 drives the hook 832 to release the limit on the retaining ring 22 on the sliding seat 4. Under the thrust of the No. 1 spring 5, the sliding seat 4 drives the transverse roller 6 to move outward from the slide groove 21. At the same time, the lock column 81 releases the contact with the middle guide rail 7, so that the trolley frame 15 can move freely in the cabinet 1.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel longitudinally rotating multi-isolating break intelligent circuit breaker unit, comprising a cabinet (1), wherein the cabinet (1) is provided with an instrument installation compartment (11), a busbar installation compartment (12), a circuit breaker installation compartment (13), and an incoming and outgoing cable installation compartment (14) in sequence, wherein a trolley frame (15) is slidably provided in the circuit breaker installation compartment (13), wherein a plurality of groups of sealed poles (16) are horizontally arranged in the trolley frame (15), and a plurality of groups of isolating switches (18) are respectively provided on both sides of the sealed poles (16), wherein an operating mechanism (17) is fixedly provided on the trolley frame (15), wherein the operating mechanism (17) can simultaneously drive all the isolating switches (18) to perform longitudinal rotation to realize opening and closing operations, and wherein: A plurality of longitudinal rollers (2) are rotatably disposed on both sides of the trolley frame (15); a bottom guide rail (3) is fixedly disposed on the side wall of the cabinet body (1); and the longitudinal rollers (2) are rollingly connected to the corresponding bottom guide rails (3); The side wall of the trolley frame (15) is provided with a slide groove (21), a slide seat (4) is slidably provided in the slide groove (21), a No. 1 spring (5) is provided between the slide seat (4) and the inner end surface of the slide groove (21), a shock-absorbing cotton strip (10) is provided in the No. 1 spring (5), the slide seat (4) is rotatably connected to a transverse roller (6), a middle guide rail (7) is provided on one side of the bottom guide rail (3), and the transverse roller (6) is rollingly connected in the middle guide rail (7); A self-locking mechanism (8) is provided between the sliding seat (4) and the sliding groove (21), and limit seats (19) are provided at both ends of the middle guide rail (7). Under the squeezing action of the transverse roller (6) and the limit seats (19), the self-locking mechanism (8) can pop out and abut against the middle guide rail (7); A speed reduction mechanism (9) is provided in the middle guide rail (7), and the speed reduction mechanism (9) is capable of limiting the speed of the handcart frame (15).

2. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 1 is characterized in that: The speed reduction mechanism (9) comprises an elastic baffle (91), a limit strip (92), a guide seat (93) and a support assembly (94); The elastic baffle (91) and the limiting strip (92) are both fixedly connected to the inner wall of the middle guide rail (7); the elastic baffle (91) passes through the limiting strip (92); the limiting strip (92) is arranged in the middle of the elastic baffle (91); and support components (94) for elastically supporting the elastic baffle (91) are arranged on both sides of the limiting strip (92); A groove cavity (20) is provided in the side wall of the middle guide rail (7), the guide seat (93) is slidably connected in the groove cavity (20), two inclined surfaces are relatively provided on the guide seat (93), and two support assemblies (94) are respectively in contact with the two inclined surfaces of the guide seat (93).

3. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 2 is characterized in that: The support assembly (94) comprises a support rod (941) and a second spring (942); the support rod (941) is slidably connected to the side wall of the groove cavity (20); one end of the support rod (941) abuts against the elastic blocking sheet (91), and the other end of the support rod (941) abuts against the inclined surface of the guide seat (93); The No. 2 spring (942) is sleeved on the outside of the support rod (941), and the No. 2 spring (942) abuts against the elastic blocking sheet (91).

4. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 2 is characterized in that: A plane is connected between the two inclined surfaces of the guide seat (93), and the plane is parallel to the inner guide surface of the middle guide rail (7).

5. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 1 is characterized in that: The self-locking mechanism (8) comprises a locking column (81), a transmission assembly (82) and a limiting assembly (83); The locking column (81) is slidably connected to the sliding seat (4), the transmission assembly (82) is arranged between the sliding seat (4) and the locking column (81), the transmission assembly (82) can drive the locking column (81) to move in the opposite direction relative to the sliding seat (4), and when the sliding seat (4) compresses the first spring (5) to a predetermined position, the limiting assembly (83) can limit the sliding seat (4).

6. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 5 is characterized in that: The transmission assembly (82) comprises a rotating shaft (821), a first gear (822), a second gear (823), a first rack plate (824) and a second rack plate (825); The rotating shaft (821) is rotatably connected to the inner side surface of the slide groove (21); the first gear (822) and the second gear (823) are both fixedly connected to the rotating shaft (821); the first rack plate (824) is fixedly connected to the sliding seat (4); and the second rack plate (825) is fixedly connected to the locking column (81); the first gear (822) is meshed with the first rack plate (824); and the second gear (823) is meshed with the second rack plate (825).

7. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 6 is characterized in that: The diameter of the first gear (822) is smaller than that of the second gear (823).

8. The novel longitudinally rotating multi-isolating break intelligent circuit breaker unit according to claim 6 is characterized in that: The limiting assembly (83) comprises a pull rod (831), a hook (832) and a third spring (833); The pull rod (831) is slidably connected to the inner wall of the cabinet (1); a hook (832) is provided on one side of the No. 1 spring (5); all the hooks (832) are fixedly connected to the pull rod (831); a No. 3 spring (833) is connected between the hook (832) and the cabinet (1); a snap ring (22) is fixedly connected to the sliding seat (4); and the hook (832) can be snap-fitted to the snap ring (22).

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