A large-capacity bus duct plug-in box and method for improving the plug-in stability of bus units

Abstract

The present invention relates to the technical field of bus duct installation, and specifically to a large-capacity bus duct plug-in box and method for improving the plug-in stability of a bus duct unit, comprising: a plug-in box body, and a connector fixedly installed in the plug-in box body, a first sliding groove symmetrically arranged is provided at the bottom of the plug-in box body; a longitudinal positioning mechanism, which is arranged on the connector and connected to the first sliding groove, and a symmetrically arranged tilting block is connected to the longitudinal positioning mechanism, and the tilting block can move when the bus duct is connected, and the longitudinal positioning mechanism performs a longitudinal positioning action on the connector; a transverse positioning mechanism, which is arranged on the plug-in box body, and a symmetrically arranged tilting plate is connected to the transverse positioning mechanism; a synchronous expansion mechanism, which is arranged in the plug-in box body and connected to the transverse positioning mechanism, and a trigger rotating component is arranged on the synchronous expansion mechanism. The present application can perform multi-directional positioning during the plug-in process, and automatically perform a locking action after the plug-in is completed to ensure the plug-in stability.

Description

Technical Field

[0001] The invention relates to the technical field of bus duct installation, and in particular to a large-capacity bus duct plug-in box and a method for improving the plug-in stability of bus units. Background Art

[0002] The main function of the bus duct plug-in box is to distribute electrical energy and protect the system. It distributes electrical energy to each branch circuit by plugging in, so as to meet the needs of different loads. In addition, the bus duct plug-in box also has a protection function, which can cut off the circuit when the system is overloaded or short-circuited to prevent equipment damage or fire accidents.

[0003] The bus duct plug-in box is usually installed in the power distribution system and connected to the bus duct to provide power to each branch circuit by plugging in. Its design makes it easier to maintain and replace branch circuits, while also reducing the use of cables and simplifying wiring work.

[0004] During the plugging process of the bus duct junction box, the plugging action is usually performed through manual calibration. When the plugging slot is not accurately connected with the plugging copper busbar, the plugging copper busbar may be bent and damaged when it is adjusted to the position or directly connected by rough operation, which will not only cause hidden dangers during use, but also cause uneven force on the connector and poor stability. Summary of the invention

[0005] The object of the present invention is to provide a large-capacity bus duct plug-in box and method for improving the plug-in stability of bus units, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-capacity bus duct plug-in box for improving the plug-in stability of a busbar unit, comprising: a plug-in box body, and a connector fixedly installed in the plug-in box body, wherein a first sliding groove arranged symmetrically is provided at the bottom of the plug-in box body; further comprising: a longitudinal positioning mechanism, which is arranged on the connector and connected to the first sliding groove, and the longitudinal positioning mechanism is connected to a symmetrically arranged tilting block, and the tilting block can move when the bus duct is connected, and the longitudinal positioning mechanism performs a longitudinal positioning action on the connector; a transverse positioning mechanism, which is arranged on the plug-in box body, and the transverse positioning mechanism is connected to a symmetrically arranged tilting plate, and the tilting plate can move when the bus duct is connected, and the transverse positioning mechanism performs a transverse positioning action on the connector; a synchronous expansion mechanism, which is arranged in the plug-in box body and connected to the transverse positioning mechanism, and the synchronous expansion mechanism is provided with a trigger rotating component, and the synchronous expansion mechanism can move when the transverse positioning mechanism moves, and the trigger rotating component performs a locking action on the synchronous expansion mechanism.

[0007] As a further solution of the present invention: the longitudinal positioning mechanism includes a supporting sleeve fixedly installed on the connector and symmetrically arranged, a straight groove is opened on the circumferential outer wall of the supporting sleeve, a limiting ring is fixed on the end of the supporting sleeve, and a sliding component connected to the straight groove is arranged on the supporting sleeve.

[0008] As a further solution of the present invention: the sliding assembly includes a support rod slidably installed in the support sleeve, a sliding plate is fixed to the end of the support rod, which is slidably connected to the straight groove and passes through the first sliding groove, the sliding plate is fixedly connected to the tilting block, and a first spring is sleeved on the support sleeve, and the two ends of the first spring are respectively abutted against the limit ring and the sliding plate.

[0009] As a further solution of the present invention: the lateral positioning mechanism includes a second sliding groove which is opened on the side wall of the plug-in box and is symmetrically arranged, a guide column is fixedly installed in the plug-in box, a symmetrically arranged guide sleeve is slidably installed on the guide column, and a support assembly is arranged on the guide sleeve.

[0010] As a further solution of the present invention: the supporting assembly includes a connecting block fixedly mounted on the side wall of the guide sleeve and passing through the second sliding groove, a movable plate is fixed to the end of the connecting block, a symmetrically arranged receiving rod is fixed to the bottom of the movable plate, and a snap-fit ​​structure is arranged on the receiving rod.

[0011] As a further solution of the present invention: the locking structure includes a support plate fixedly mounted on the end of the receiving rod away from the movable plate, a connecting plate fixedly connected to the inclined plate is fixed on the support plate, and a locking groove is formed between the support plate and the inclined plate.

[0012] As a further solution of the present invention: the synchronous unfolding mechanism includes a rotating rod rotatably installed on the inner wall of the plug-in box, a movable sleeve is slidably installed on the rotating rod, a guide ring is fixed on the movable sleeve, the side wall of the movable sleeve is hinged with a symmetrically arranged connecting rod, the connecting rod is hinged to the guide sleeve, and a guide assembly connected to the movable sleeve is arranged on the rotating rod.

[0013] As a further solution of the present invention: the guide assembly includes a fixed ring fixedly installed on the rotating rod, a guide groove is provided on the circumferential outer wall of the rotating rod, a first limit block slidingly connected to the guide groove is fixed on the inner wall of the movable sleeve, a second spring is sleeved on the rotating rod, and two ends of the second spring are respectively abutted against the movable sleeve and the fixed ring.

[0014] As a further solution of the present invention: the trigger rotating assembly includes a spiral groove provided on the circumferential outer wall of the rotating rod, a movable ring is slidably installed on the rotating rod, a second limit block is fixed to the inner wall of the movable ring and is slidably engaged with the spiral groove, and a guide rod is fixed on the movable ring and is slidably connected to the guide ring; it also includes a third spring mounted on the rotating rod, and both ends of the third spring are respectively abutted against the fixed ring and the movable ring.

[0015] A method for inserting a large-capacity bus duct to improve the insertion stability of a bus unit comprises the following steps:

[0016] Step 1: Align the plug-in box with the bus duct to be plugged in, and make the connector fit with the bus duct;

[0017] Step 2: When the two tilting blocks come into contact with two edges of the protruding protection box on the bus duct, the two tilting blocks will give way and perform a longitudinal positioning action on the connector and the plug-in box through the longitudinal positioning mechanism;

[0018] Step 3: When the two inclined plates come into contact with the other two edges of the bus duct, the two inclined plates give way and drive the synchronous unfolding mechanism to move through the lateral positioning mechanism to perform lateral positioning on the plug-in box;

[0019] Step 4: When the tilting plate moves to the desired position, the position of the tilting plate is locked by the synchronous unfolding mechanism and the lateral positioning mechanism under the action of the triggering rotation assembly.

[0020] Compared with the prior art, the beneficial effect of the present invention is that the present application can ensure that the connector can be smoothly and accurately connected to the bus duct through dual positioning in the horizontal and vertical directions. Specifically, when the plug-in box is aligned with the bus duct to be plugged in, the inclined surfaces of the two inclined plates will first abut against the side of the bus duct and make way, so that the horizontal positioning mechanism moves to drive the synchronous unfolding mechanism to move. Under the action of the horizontal positioning mechanism, the plug-in box is controlled to move horizontally to the center position of the bus duct. At the same time, the inclined surfaces of the two inclined blocks abut against the protective box on the bus duct and drive the longitudinal positioning mechanism to move, so that the connector moves longitudinally to the center position of the protective box. Through dual displacement in the vertical and horizontal directions, it can be ensured that the plug-in slot at the bottom of the connector moves to a position that is precisely matched with the plug-in copper busbar, thereby avoiding the problem of bending of the plug-in copper busbar or damage of the plug-in slot due to misalignment of the plug-in slot and the plug-in copper busbar.

[0021] When the tilting block and the tilting plate are in contact with the bus duct, the plug-in box will be controlled to make longitudinal and lateral displacements, so that the plug-in slot at the bottom of the connector will automatically move to a position that cooperates with the plug-in copper busbar. There is no need for manual calibration. During the manual calibration process, it is inevitable to continuously adjust the plug-in position of the connector, which may cause wear on the plug-in copper busbar. The above operation can achieve simple operation and precise positioning.

[0022] By triggering the rotating component, the position of the first limit block in the guide groove can be continuously adjusted. Since the opening size of the first annular groove is relatively large, the safety margin provided by the first annular groove can avoid the problem that the inclined surface of the inclined plate has not yet been separated from the side end of the bus duct due to inconsistent bus duct shell dimensions caused by tolerance or other influences during the production process of the bus duct shell, and the first limit block cannot move, so as to ensure that the inclined surface of the inclined plate can be smoothly separated from the bus duct shell. At the same time, the position of the inclined plate can be locked through the cooperation of the first limit block and the second annular groove to ensure a stable connection between the plug-in box and the bus duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of bus units;

[0024] Figure 2 A structural schematic diagram of another angle of an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of bus units;

[0025] Figure 3 A schematic diagram of the structure inside the plug-in box of a large-capacity bus duct plug-in box in one embodiment for improving the plug-in stability of the bus unit;

[0026] Figure 4 A schematic diagram of the structure of a connector, a longitudinal positioning mechanism, and a tilting block in an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of bus units;

[0027] Figure 5 A schematic diagram of the structure of a longitudinal positioning mechanism and a tilting block in an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of bus units;

[0028] Figure 6 A schematic diagram of the connection relationship between a lateral positioning mechanism, a synchronous unfolding mechanism, and a triggering rotation assembly in an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of bus units;

[0029] Figure 7 for Figure 6 Schematic diagram of the half-section structure;

[0030] Figure 8A schematic diagram of the structure of a part of the lateral positioning mechanism and the inclined plate in an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of the bus unit;

[0031] Fig. 9 A schematic diagram of the explosion structure of a part of the synchronous deployment mechanism and the triggering rotation assembly in an embodiment of a large-capacity bus duct plug-in box for improving the plug-in stability of the bus unit;

[0032] Fig.10 for Fig. 9 A schematic diagram of the enlarged structure at point A in the middle.

[0033] In the figure: 1, plug-in box; 101, first slide groove; 102, second slide groove; 2, connector; 3, support sleeve; 301, limit ring; 302, straight groove; 4, support rod; 5, sliding plate; 6, first spring; 7, tilting block; 8, guide column; 9, guide sleeve; 901, connecting block; 10, movable plate; 1001, receiving rod; 11, support plate; 12, connecting plate; 1201, slot; 13, tilting plate; 14, rotating rod; 1401, first vertical groove; 1402, first annular groove; 1403, second vertical groove; 1404, second annular groove; 1405, spiral groove; 15, movable sleeve; 16, first limit block; 17, guide ring; 18, connecting rod; 19, second spring; 20, fixed ring; 21, movable ring; 22, second limit block; 23, guide rod; 24, third spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0036] See also Figure 1 to Figure 10In an embodiment of the present invention, a large-capacity bus duct plug-in box for improving the plug-in stability of a bus unit includes: a plug-in box body 1, and a connector 2 fixedly installed in the plug-in box body 1, wherein a first slide groove 101 symmetrically arranged is provided at the bottom of the plug-in box body 1; further comprising: a longitudinal positioning mechanism, which is arranged on the connector 2 and connected to the first slide groove 101, and a symmetrically arranged tilting block 7 is connected to the longitudinal positioning mechanism, and the tilting block 7 can move when the bus duct is connected, and the longitudinal positioning mechanism performs a longitudinal positioning action on the connector 2; a transverse positioning mechanism, which is arranged on the plug-in box body 1, and a symmetrically arranged tilting plate 13 is connected to the transverse positioning mechanism, and the tilting plate 13 can move when the bus duct is connected, and the transverse positioning mechanism performs a transverse positioning action on the connector 2; a synchronous expansion mechanism, which is arranged in the plug-in box body 1 and connected to the transverse positioning mechanism, and a trigger rotation component is arranged on the synchronous expansion mechanism, and the synchronous expansion mechanism can move when the transverse positioning mechanism moves, and the trigger rotation component performs a locking action on the synchronous expansion mechanism.

[0037] Specifically, when connecting the plug-in box 1 and the bus duct, in order to ensure that the connector 2 can be smoothly connected to the bus duct copper bar, it is necessary to position the connector 2 before plugging. Therefore, the plug-in box 1 can be controlled to move toward the bus duct, and when the tilting block 7 abuts against two of the edges of the bus duct, the longitudinal positioning mechanism is controlled to move to perform a longitudinal positioning action on the connector 2 and the plug-in box 1. At the same time, when the tilting plate 13 abuts against the other two edges of the bus duct, the transverse positioning mechanism and the synchronous expansion mechanism are driven to move to perform a transverse positioning action on the connector 2 and the plug-in box 1. At this time, the connector 2 is positioned and can be connected to the bus duct. When the connection is completed, under the action of the triggering rotation assembly, the position of the tilting plate 13 is locked by the synchronous expansion mechanism and the transverse positioning mechanism to ensure the stability of the connection between the plug-in box 1 and the bus duct.

[0038] See also Figure 1-Figure 5 The longitudinal positioning mechanism includes a supporting sleeve 3 fixedly mounted on the connector 2 and symmetrically arranged, a straight groove 302 is opened on the circumferential outer wall of the supporting sleeve 3, a limiting ring 301 is fixed at the end of the supporting sleeve 3, a sliding assembly connected to the straight groove 302 is arranged on the supporting sleeve 3, and the sliding assembly includes a supporting rod 4 slidably mounted in the supporting sleeve 3, a sliding plate 5 slidably connected to the straight groove 302 and passing through the first sliding groove 101 is fixed at the end of the supporting rod 4, the sliding plate 5 is fixedly connected to the tilting block 7, and a first spring 6 is sleeved on the supporting sleeve 3, and the two ends of the first spring 6 are respectively abutted against the limiting ring 301 and the sliding plate 5.

[0039] In detail, the bottom of the connector 2 passes through the plug-in box 1 and is provided with a plug-in slot that is compatible with the plug-in copper bar of the bus duct. The tilting block 7 is arranged in a ladder shape, and the inclined surfaces of the two tilting blocks 7 are arranged opposite to each other. In the initial state, the first spring 6 is in a compressed state, so that the sliding plate 5 is located at the end of the stroke on the side of the straight groove 302 away from the limit ring 301, so that the distance between the two tilting blocks 7 is minimized. Since the plug-in box 1 and the bus duct are matched, the connector 2 is provided with a plug-in slot that matches the plug-in copper bar, and the plug-in copper bar is arranged in the protruding protective box of the bus duct. Therefore, when connecting the plug-in box 1 and the bus duct, the plug-in box 1 can be controlled to be located above the bus duct, and the connector 2 can be controlled to move toward the direction of the bus duct. Due to the tilting block 7 extends out of the plug-in box body 1, therefore, the inclined surfaces of the two inclined blocks 7 will first abut against the edges of the protective box on the bus duct, causing the two inclined blocks 7 to give way and drive the sliding plate 5 to move along the length direction of the first sliding groove 101 and the straight groove 302, the sliding plate 5 will also drive the support rod 4 to move and further compress the first spring 6, under the reaction force of the elastic force of the two first springs 6, if the position of the connector 2 and the plug-in copper busbar is offset, the inclined blocks 7 will control the connector 2 to move longitudinally to the position matching the plug-in copper busbar, and at the same time, under the action of the lateral positioning mechanism, the plug-in box body 1 will control the connector 2 to move laterally to the position matching the plug-in copper busbar, thereby ensuring that the plug-in copper busbar can be smoothly inserted into the plug-in slot at the bottom of the connector 2.

[0040] Preferably, through the pre-compression force of the first spring 6, the tilting block 7 can automatically perform a giving way action when it abuts against the bus duct, and automatically perform a positioning action on the connector 2 under the reaction force of the first spring 6 to prevent the plug-in slot from being misaligned with the plug-in copper busbar during plugging, resulting in bending, wear and tear of the plug-in copper busbar due to improper connection during the plug-in process, or damage to the plug-in slot.

[0041] See also Figure 1-Figure 3 , Figure 6-Figure 8The lateral positioning mechanism includes a second slide groove 102 which is symmetrically arranged and is opened on the side wall of the plug-in box 1. A guide column 8 is fixedly installed in the plug-in box 1, and a guide sleeve 9 which is symmetrically arranged is slidably installed on the guide column 8. A support assembly is arranged on the guide sleeve 9, wherein the support assembly includes a connecting block 901 which is fixedly installed on the side wall of the guide sleeve 9 and passes through the second slide groove 102, a movable plate 10 is fixed to the end of the connecting block 901, a symmetrically arranged receiving rod 1001 is fixed to the bottom of the movable plate 10, and a clamping structure is arranged on the receiving rod 1001. The above-mentioned clamping structure includes a support plate 11 which is fixedly installed on the receiving rod 1001 at one end away from the movable plate 10, a connecting plate 12 which is fixedly connected to the inclined plate 13 is fixed on the support plate 11, and a clamping groove 1201 is formed between the support plate 11 and the inclined plate 13.

[0042] It should be noted that when connecting the plug-in box 1 and the bus duct, the two need to be fixed to each other. The two side edges of the bus duct shell are arranged in a protruding shape. The size of the card slot 1201 is equivalent to the thickness of the protruding edge. The inclined plate 13 is arranged in a triangular inclined shape, and the inclined surfaces of the two inclined plates 13 are in a symmetrical state. In the initial state, under the action of the synchronous expansion mechanism, the distance between the two guide sleeves 9 is minimized, so that the two inclined plates 13 are located at the end of the stroke in the direction of approaching each other. The distance between the inclined plate 13 and the plug-in box 1 is greater than the distance between the inclined block 7 and the plug-in box 1. During the plug-in process, the inclined surface of the inclined plate 13 will first abut against the edge of the bus duct, causing the two inclined plates 13 to give way and move in the direction of moving away from each other, thereby driving the support plate 11 to move through the connecting plate 12. , to drive the movable plate 10 to move through the receiving rod 1001, and the movable plate 10 will also drive the two guide sleeves 9 to move along the length direction of the guide column 8 through the connecting block 901, and under the action of the synchronous expansion mechanism, the movement stroke of the two guide sleeves 9 is the same, and the synchronous expansion mechanism will also provide a reaction force to control the plug-in box body 1 to move horizontally to the center position of the bus duct through the inclined plate 13, so as to control the connector 2 to move to the matching position with the plug-in copper busbar; before this operation process, the inclined block 7 will first abut against the edge of the protective box on the bus duct to control the connector 2 to move longitudinally to the center position of the protective box, thereby realizing the double positioning of the connector 2 in the horizontal and longitudinal directions through the inclined block 7 and the inclined plate 13, ensuring that when the plug-in copper busbar enters the plug-in slot, the two can be plugged in smoothly.

[0043] Preferably, since the two tilting blocks 7 and the two tilting plates 13 are all located below the plug-in box 1, the connector 2 can be positioned before the connector 2 and the plug-in copper bus are connected to each other, and since the tilting blocks 7 and the tilting plates 13 are both passive actions during the plug-in process, it is only necessary to manually control the plug-in box 1 to move toward the bus duct plug-in position. When the tilting blocks 7 and the tilting plates 13 abut against the bus duct, the plug-in box 1 will be controlled to make longitudinal and lateral displacements, so that the plug-in slot at the bottom of the connector 2 automatically moves to a position that cooperates with the plug-in copper bus, without the need for manual calibration. During the manual calibration process, it is inevitable to continuously adjust the plug-in position of the connector 2, and there may be a problem of wear and tear on the plug-in copper bus. Through the above operation, both simple operation and accurate positioning can be achieved, and the problem of damage to the plug-in copper bus and the plug-in slot caused by misalignment of the plug-in can be avoided.

[0044] See also Figure 3 , Figure 6 , Figure 7 , Fig. 9 , Fig.10 The synchronous unfolding mechanism includes a rotating rod 14 rotatably mounted on the inner wall of the plug-in box body 1, a movable sleeve 15 is slidably mounted on the rotating rod 14, a guide ring 17 is fixed on the movable sleeve 15, a symmetrically arranged connecting rod 18 is hinged on the side wall of the movable sleeve 15, the connecting rod 18 is hinged to the guide sleeve 9, and a guide assembly connected to the movable sleeve 15 is provided on the rotating rod 14, wherein the guide assembly includes a fixed ring 20 fixedly mounted on the rotating rod 14, a guide groove is opened on the circumferential outer wall of the rotating rod 14, a first limit block 16 slidably connected to the guide groove is fixed on the inner wall of the movable sleeve 15, and a second spring 19 is sleeved on the rotating rod 14, and the two ends of the second spring 19 are respectively abutted against the movable sleeve 15 and the fixed ring 20.

[0045] Further, the guide groove can be divided into four sections, namely the first vertical groove 1401, the first annular groove 1402, the second vertical groove 1403, and the second annular groove 1404, and the ends of the first vertical groove 1401, the first annular groove 1402, the second vertical groove 1403, and the second annular groove 1404 are connected to each other in sequence, the opening dimensions of the first vertical groove 1401, the second vertical groove 1403, and the second annular groove 1404 are equivalent to the first limit block 16, and the opening dimension of the first annular groove 1402 is the largest. In the initial state, the second spring 19 is in a compressed state, so that the movable sleeve 15 is located at the end of the stroke of the rotating rod 14 away from the fixed ring 20, so that the first limit block 16 is located at the first vertical groove 1401 away from the first annular groove 1402 side. At the end of the stroke, the movable sleeve 15 will control the two guide sleeves 9 to be at the end of the stroke in the direction of approaching each other through the connecting rod 18, so that the distance between the two inclined plates 13 is minimized. When the plug-in box 1 needs to be plugged in, the inclined surfaces of the two inclined plates 13 will abut against the edges of the side edges of the bus duct and give way, so that the two guide sleeves 9 move in the direction away from each other. The guide sleeve 9 will drive the movable sleeve 15 to move toward the fixed ring 20 through the connecting rod 18 to compress the second spring 19. The movable sleeve 15 will also drive the first limit block 16 to move along the length direction of the first vertical slot 1401. Under the action of the connecting rod 18 and the guide sleeve 9, it can be ensured that the movable sleeve 15 will not rotate during movement. Therefore, under the action of the first limit block 16 and the first vertical groove 1401, the rotating rod 14 is locked. When the first limit block 16 moves to the matching position with the first annular groove 1402, the rotating rod 14 is no longer locked. Under the action of the triggering rotation component, the rotating rod 14 rotates a certain angle to make the first limit block 16 enter the connection position of the first annular groove 1402 and the second vertical groove 1403. At this time, the inclined surface of the inclined plate 13 has not yet separated from the edge of the bus duct, and the first limit block 16 will continue to move toward the fixed ring 20 until the inclined surface of the inclined plate 13 is separated from the edge, the support plate 11 will move to a position that fits the surface of the bus duct, the second spring 19 is elastically released, and drives the movable sleeve 15 to move away from the fixed The fixed ring 20 moves in the direction of movement, thereby controlling the two guide sleeves 9 to move toward each other through the connecting rod 18, so that the two inclined plates 13 move toward each other, so as to control the slot 1201 to be inserted into the protruding position of the side of the bus duct, and the opposite sides of the support plate 11 and the inclined plate 13 will respectively abut against the two sides of the protruding position of the bus duct. When the first limit block 16 moves to the connection position of the second vertical groove 1403 and the second annular groove 1404, the position of the movable sleeve 15 on the rotating rod 14 no longer changes. Under the action of the connecting rod 18, the position of the guide sleeve 9 is limited to ensure that the positions of the support plate 11 and the inclined plate 13 will not change. At the same time, under the action of the triggering rotation component, the rotating rod 14 continues to rotate a certain angle.The first limit block 16 moves into the second annular groove 1404. Under the action of the first limit block 16 and the second annular groove 1404, the movable sleeve 15 is locked, so that the plug-in box 1 is fixed in the bus duct through the support plate 11 and the inclined plate 13.

[0046] Preferably, when the two inclined plates 13 move away from each other, the position of the first limit block 16 in the guide groove will continuously change. When the first limit block 16 is in the first vertical groove 1401, the inclined surface of the inclined plate 13 is always in contact with the bus duct. When the first limit block 16 is in the first annular groove 1402, due to the larger opening size of the first annular groove 1402, the first limit block 16 can still continue to move a certain distance toward the fixing ring 20, thereby avoiding the situation in which the inclined surface of the inclined plate 13 has not yet separated from the side end of the bus duct due to tolerance or other influences during the production process of the bus duct shell. The problem that block 16 cannot move can be solved by the safety margin provided by the first annular groove 1402, which can ensure that the first limit block 16 can smoothly enter the second vertical groove 1403, so as to ensure that the inclined surface of the inclined plate 13 can be smoothly separated from the bus duct shell. In this process, the positioning of the connector 2 is completed, and the plug-in copper bus is entered into the plug-in slot. During separation, the slot 1201 will be inserted into the side of the bus duct shell, thereby limiting the displacement of the plug-in box 1 in the vertical direction. At the same time, through the cooperation of the first limit block 16 and the second annular groove 1404, the position of the inclined plate 13 can be locked to ensure the stable connection between the plug-in box 1 and the bus duct.

[0047] See also Figure 3 , Figure 6 , Figure 7 , Fig. 9 The trigger rotation assembly includes a spiral groove 1405 provided on the outer circumferential wall of the rotating rod 14, a movable ring 21 is slidably installed on the rotating rod 14, a second limit block 22 slidably engaged with the spiral groove 1405 is fixed on the inner wall of the movable ring 21, and a guide rod 23 slidably connected to the guide ring 17 is fixed on the movable ring 21; it also includes a third spring 24 sleeved on the rotating rod 14, and the two ends of the third spring 24 are respectively abutted against the fixed ring 20 and the movable ring 21.

[0048] To go further, the angle of the spiral groove 1405 in the circumferential direction is the same as the angle formed by the combination of the first annular groove 1402 and the second annular groove 1404. In the initial state, the first limit block 16 is located in the first vertical groove 1401, so that the rotating rod 14 remains in a locked state, and the second limit block 22 is located at the end of the stroke of the spiral groove 1405 toward the side of the fixed ring 20, so that the distance between the movable ring 21 and the fixed ring 20 is minimized, and the third spring 24 is in a compressed state, so that the movable ring 21 has a tendency to move in the direction away from the fixed ring 20. When the first limit block 16 moves to the connection position of the first vertical groove 1401 and the first annular groove 1402, the rotating rod 14 is no longer locked, the third spring 24 is elastically released, and drives the movable ring 21 to move in the direction away from the fixed ring 20, and between the guide rod 23 and Under the action of the guide ring 17, it is ensured that the movable ring 21 will not rotate. The movable ring 21 will also drive the second limit block 22 to slide in the spiral groove 1405, so that the rotating rod 14 rotates a certain angle, so that the first limit block 16 moves to the connection position of the first annular groove 1402 and the second vertical groove 1403. At this time, the third spring 24 is still in a compressed state. When the first limit block 16 moves to the connection position of the second vertical groove 1403 and the second annular groove 1404, the third spring 24 continues to be elastically released, so that the rotating rod 14 continues to move until the first limit block 16 moves to the end of the stroke of the second annular groove 1404. At this time, the third spring 24 is still in a compressed state, thereby providing a certain locking force to the rotating rod 14 through the second limit block 22 and the spiral groove 1405 to ensure that the position of the tilting plate 13 no longer changes.

[0049] A method for inserting a large-capacity bus duct to improve the insertion stability of a bus unit comprises the following steps:

[0050] Step 1: Align the plug-in box 1 with the bus duct to be plugged in, and make the connector 2 fit with the bus duct;

[0051] Step 2: When the two tilting blocks 7 come into contact with two edges of the protruding protection box on the bus duct, the two tilting blocks 7 will give way and perform a longitudinal positioning action on the connector 2 and the plug-in box 1 through the longitudinal positioning mechanism;

[0052] Step 3: When the two inclined plates 13 are in contact with the other two edges of the bus duct, the two inclined plates 13 give way and drive the synchronous unfolding mechanism to move through the lateral positioning mechanism to perform a lateral positioning action on the plug-in box 1;

[0053] Step 4: When the tilting plate 13 moves to the desired position, the position of the tilting plate 13 is locked by the synchronous unfolding mechanism and the lateral positioning mechanism under the action of the triggering rotating assembly.

[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0055] 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 large-capacity bus duct plug-in box for improving the plug-in stability of bus units, comprising: A plug-in box (1), and a connector (2) fixedly mounted in the plug-in box (1), wherein a first slidable groove (101) is symmetrically arranged at the bottom of the plug-in box (1); the plug-in box (1) is characterized in that it also includes: a longitudinal positioning mechanism, which is arranged on the connector (2) and connected to the first slidable groove (101), and the longitudinal positioning mechanism is connected to a symmetrically arranged tilting block (7), and the tilting block (7) can move when connected to a bus duct, and the longitudinal positioning mechanism performs a longitudinal positioning action on the connector (2); a transverse positioning mechanism, which is arranged on the plug-in box (1), and the transverse positioning mechanism is connected to a symmetrically arranged tilting plate (13), and the tilting plate (13) can move when connected to a bus duct, and the transverse positioning mechanism performs a transverse positioning action on the connector (2); a synchronous expansion mechanism, which is arranged in the plug-in box (1) and connected to the transverse positioning mechanism. The synchronous unfolding mechanism is connected to the connector (2), the synchronous unfolding mechanism is provided with a trigger rotating assembly, the synchronous unfolding mechanism can be activated when the horizontal positioning mechanism moves, and the synchronous unfolding mechanism is locked by the trigger rotating assembly; the longitudinal positioning mechanism comprises a support sleeve (3) fixedly mounted on the connector (2) and symmetrically arranged, the support sleeve (3) having a straight groove (302) formed on a circumferential outer wall, a limit ring (301) fixed at an end of the support sleeve (3), and a sliding assembly connected to the straight groove (302) being provided on the support sleeve (3); the horizontal positioning mechanism comprises a second sliding groove (102) formed on a side wall of the plug-in box (1) and symmetrically arranged, a guide column (8) fixedly mounted in the plug-in box (1), a symmetrically arranged guide sleeve (9) slidably mounted on the guide column (8), and a support assembly is provided on the guide sleeve (9).

2. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 1, characterized in that: The sliding assembly comprises a support rod (4) slidably mounted in the support sleeve (3); a sliding plate (5) slidably connected to the straight groove (302) and penetrating the first sliding groove (101) is fixed to the end of the support rod (4); the sliding plate (5) is fixedly connected to the tilting block (7); a first spring (6) is sleeved on the support sleeve (3); two ends of the first spring (6) are respectively in contact with the limit ring (301) and the sliding plate (5).

3. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 1, characterized in that: The support assembly comprises a connecting block (901) fixedly mounted on the side wall of the guide sleeve (9) and penetrating the second slide groove (102); a movable plate (10) is fixed to the end of the connecting block (901); a symmetrically arranged receiving rod (1001) is fixed to the bottom of the movable plate (10); and a snap-fit ​​structure is arranged on the receiving rod (1001).

4. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 3, characterized in that: The engaging structure comprises a support plate (11) fixedly mounted on an end of the receiving rod (1001) facing away from the movable plate (10), a connecting plate (12) fixedly connected to the inclined plate (13) being fixed on the support plate (11), and a locking groove (1201) being formed between the support plate (11) and the inclined plate (13).

5. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 1, characterized in that: The synchronous unfolding mechanism comprises a rotating rod (14) rotatably mounted on the inner wall of the plug-in box (1), a movable sleeve (15) being slidably mounted on the rotating rod (14), a guide ring (17) being fixed on the movable sleeve (15), a symmetrically arranged connecting rod (18) being hinged on the side wall of the movable sleeve (15), the connecting rod (18) being hinged to the guide sleeve (9), and a guide assembly connected to the movable sleeve (15) being arranged on the rotating rod (14).

6. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 5, characterized in that: The guide assembly comprises a fixed ring (20) fixedly mounted on the rotating rod (14); a guide groove is formed on the circumferential outer wall of the rotating rod (14); a first limit block (16) slidably connected to the guide groove is fixed on the inner wall of the movable sleeve (15); a second spring (19) is sleeved on the rotating rod (14); two ends of the second spring (19) are respectively in contact with the movable sleeve (15) and the fixed ring (20).

7. A large-capacity bus duct plug-in box for improving the plug-in stability of bus units according to claim 6, characterized in that: The trigger rotation assembly comprises a spiral groove (1405) provided on the circumferential outer wall of the rotating rod (14); a movable ring (21) is slidably mounted on the rotating rod (14); a second limit block (22) is fixed to the inner wall of the movable ring (21) and is slidably engaged with the spiral groove (1405); a guide rod (23) is fixed to the movable ring (21) and is slidably connected to the guide ring (17); and the trigger rotation assembly also comprises a third spring (24) sleeved on the rotating rod (14); two ends of the third spring (24) are respectively in contact with the fixed ring (20) and the movable ring (21).

8. A method for plugging in a large-capacity bus duct for improving the plugging stability of a bus unit, using a large-capacity bus duct plug-in box for improving the plugging stability of a bus unit as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Align the plug-in box (1) with the bus duct to be plugged in, and make the connector (2) fit with the bus duct; Step 2: When the two tilting blocks (7) come into contact with two edges of the protruding protection box on the bus duct, the two tilting blocks (7) will give way and perform a longitudinal positioning action on the connector (2) and the plug-in box (1) through the longitudinal positioning mechanism; Step 3: When the two inclined plates (13) are in contact with the other two edges of the bus duct, the two inclined plates (13) give way and drive the synchronous unfolding mechanism to move through the lateral positioning mechanism, so as to perform a lateral positioning action on the plug-in box (1); Step 4: When the tilting plate (13) moves to the desired position, the position of the tilting plate (13) is locked by the synchronous unfolding mechanism and the lateral positioning mechanism under the action of the triggering rotation assembly.

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