CN218070574U - A cabinet top pipe bus connection device for a switch cabinet - Google Patents

Abstract

The utility model discloses a cabinet top pipe busbar connecting device of a switchgear, which comprises an adjustable connection device body fixedly connected to the top of the top pipe of the switch cabinet, and the top of the switch cabinet is fixedly provided with a wiring seat located in the top pipe of the cabinet , there is a bus bar above the switch cabinet, the body of the adjustable connection device includes an insulating tube fixedly connected to the top of the top tube of the cabinet, the insulating tube is provided with an elastic telescopic conduction component fixedly connected to the top of the terminal block, and the insulating tube is sealed The movable sleeve is set on the outside of the busbar. The utility model is convenient to quickly adjust the connection and conduction height of the busbar through the method of poking and inserting and elastically tightening the conduction, so as to facilitate the adjustment of the height of the wiring position according to the requirements of different wiring heights, and facilitate the convenient and fast clamping of the busbar through a simple pulling method It is easy to operate, improves the efficiency and convenience of disassembly and fixation, and provides convenience for personnel to disassemble and assemble the busbar.

Description

A cabinet top pipe bus connection device for a switch cabinet

technical field

The utility model relates to the technical field of busbar installation, in particular to a busbar connection device for a cabinet top pipe of a switchgear.

Background technique

The switchgear is generally connected to the busbar from the top of the cabinet. According to the safety regulations of electricity use, the safety distance between the live parts of different phases of different types of switchgear (such as 35kV switchgear, 10kV switchgear, etc.) is different, and the safety distance is not reached. Some parts need to be insulated;

According to this requirement, after searching, the application number 201922493742.3 discloses a cabinet top pipe busbar connection device of a switchgear, which is connected to the switchgear, including an outgoing line bushing, an outgoing line terminal block, an insulating pipe busbar and an insulating bushing assembly. One end of the bushing is fixed on the top of the switch cabinet, the other end of the outgoing line bushing is connected to the outgoing line terminal block, and one end of the insulating tube busbar is provided with a connecting component, and the connecting component is connected to the outgoing line row is detachably connected, the insulating sleeve assembly is sleeved at the connection between the insulating tube busbar and the outgoing line terminal block, and covers the connecting assembly and the outgoing line terminal block, the connecting assembly includes a connector, a connecting terminal block and the connecting busbar, the connector is detachably connected to the insulating pipe busbar, which realizes the adjustment of the installation height of the insulating pipe busbar by using the connecting assembly to ensure a safe distance. The connection components and outgoing terminal blocks are insulated to ensure the safety of electricity use.

There are still some deficiencies in the above patents. 1. Since the length of the connection terminal block is fixed, it is necessary to replace the terminal block with different lengths according to the requirements of different installation heights. The scope of use is relatively limited, and the connection height cannot be adjusted according to the requirements of different connection heights; 2. The terminal block is detachably connected by four bolts and four nuts and is enclosed inside. The disassembly and assembly are cumbersome, the disassembly efficiency is low, and it is inconvenient to quickly disassemble and connect the busbar. In view of this, we propose a The utility model relates to a cabinet top pipe bus connection device of a switch cabinet, which is used to solve the above problems.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a switchgear top pipe bus connection device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A cabinet top pipe bus connection device for a switchgear, including an adjustable connection device body fixedly connected to the top of the top pipe of the switch cabinet. There is a busbar, and the body of the adjustable connection device includes an insulating tube fixedly connected to the top of the top pipe of the cabinet. The insulating tube is provided with an elastic telescopic conduction component fixedly connected to the top of the terminal block. outside, the wire core inside the busbar itself is tightly contacted with the top of the elastic telescopic conduction assembly, and the elastic telescopic conduction assembly is used to elastically close the wire core inside the busbar itself;

The outer side of the insulating pipe is fixedly fitted with an externally threaded bushing, the threaded sleeve on the externally threaded bushing is provided with an internally threaded bushing, the four sides of the internally threaded bushing are fixedly connected with handle bars, and both sides of the busbar are equipped with The arc-shaped clamping block, the sides of the two arc-shaped clamping blocks away from each other are fixedly connected with elastic guide components, and the external thread sleeve is slidably sleeved on the two elastic guide components, and the elastic guide component is used to align the arc-shaped clamp blocks laterally. Guided, the inner rotating sleeve of the internal thread casing is provided with an extrusion displacement drive assembly fixedly connected to the top of the external thread casing. The inner side of the extrusion displacement drive assembly is hinged with two extrusion rods arranged obliquely and symmetrically. The bottom ends are respectively hinged to the sides of the two arc-shaped clamping blocks that are far away from each other, and the extruding displacement driving assembly is used to drive the two arc-shaped clamping blocks to move closer or oppositely through two extruding rods.

Preferably, the elastic telescopic conduction assembly includes a copper tube fixedly connected to the top of the terminal block, the bottom end of the copper tube is set as a sealing structure, the inner sliding sleeve of the copper tube is provided with a copper rod, and the bottom end of the copper rod is connected to the copper tube. The inner wall of the bottom end of the bus bar is fixedly connected with an insulating spring in a compressed state, the top of the copper rod is fixedly connected with a copper block, and the bottom end of the busbar's own core is tightly contacted with the top of the copper block. The insulating spring in the compressed state cooperates with the copper block, which can elastically connect the copper block and the wire core in the busbar itself.

Preferably, the elastic guide assembly includes a guide rod and a first spring, one end of the two guide rods close to each other is fixedly connected to the side of the two arc-shaped clamping blocks away from each other, and the externally threaded sleeve is slidingly sleeved on the two On the guide rod, the ends of the two first springs that are close to each other are fixedly connected to the sides of the two arc clips that are far away from each other, and the ends of the two first springs that are far away from each other are respectively fixedly connected to the inner walls of both sides of the externally threaded casing .

Preferably, the extrusion displacement drive assembly includes a circular ring that is rotatably sleeved in the internally threaded sleeve, the bus bar is located in the circular ring, both sides of the top end of the externally threaded sleeve are fixedly connected with guide posts, and the circular ring is slidably sleeved on the On the two guide columns, the inner walls on both sides of the ring are respectively hinged with the top ends of the two extruding rods. The set ring, the guide column and the inner threaded sleeve can drive the ring to move up and down, so that the use of the ring The two arc-shaped clamping blocks can be driven to move similarly or oppositely through the extruding rod.

Preferably, the sides of the two arc-shaped clamping blocks that are close to each other are bonded and fixed with non-slip rubber.

Preferably, the inner side of the insulating tube is glued and fixed with a sealing rubber sleeve, and the inner side of the sealing rubber sleeve fits the outer side of the bus bar.

Preferably, a rotating bearing is fixedly connected to the inner threaded sleeve, and the inner ring of the rotating bearing is fixedly connected to the outer side of the ring.

Compared with the prior art, the beneficial effects of the utility model are:

By cooperating with the insulating tube provided by the elastic telescopic conduction assembly, the elastic telescopic conduction assembly can be used to tighten and fit the bus bar when the bus bar is inserted downward, and the elastic telescopic conduction assembly can be used when the insertion pressure is applied. Scalable features to adjust the height of the conduction wiring position;

Through the cooperation of the set handle rod, internal thread sleeve, external thread sleeve, extrusion displacement drive assembly, extrusion rod, arc clamp block and elastic guide assembly, the internal thread sleeve can be driven by turning the handle rod to rotate Move up and down, so as to drive the ring to move up and down. When the ring moves down, it drives the two extrusion rods to squeeze the two arc-shaped splints toward the middle, so that the two arc-shaped clamping blocks are clamped toward the middle to the busbar, and The first spring is stretched, and when the ring moves up, it will drive the two extrusion rods to pull the two arc clamps outward, and the two first springs in the stretched state will also assist the two arc clamps Move outward, so that the busbar can be clamped or unlocked and disassembled conveniently and quickly by simply pulling.

The utility model is convenient to quickly adjust the connection and conduction height of the busbar through the method of poking and inserting and elastically tightening the conduction, so as to facilitate the adjustment of the height of the wiring position according to the requirements of different wiring heights, and facilitate the convenient and fast clamping of the busbar through a simple pulling method It is easy to operate, improves the efficiency and convenience of disassembly and fixation, and provides convenience for personnel to disassemble and assemble the busbar.

Description of drawings

Fig. 1 is a structural schematic diagram of a cabinet top pipe bus connection device of a switchgear proposed by the utility model;

Fig. 2 is the enlarged sectional structure schematic diagram of part A in Fig. 1;

FIG. 3 is a schematic diagram showing the enlarged structure of part B in FIG. 2 .

In the figure: 100, switchgear; 101, terminal block; 200, bus bar; 1, insulating tube; 2, copper tube; 3, insulating spring; 4, copper rod; 5, copper block; 6, external thread casing; 7 , internal thread casing; 8, arc clamp block; 9, first spring; 10, guide rod; 11, extrusion rod; 12, ring; 13, guide post; 14, sealing rubber sleeve; 15, handle rod ; 16. Rolling bearings.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a cabinet top pipe busbar connection device for a switchgear includes an adjustable connection device body that is fixedly connected to the top of the top pipe of the switch cabinet 100. The top of the switch cabinet 100 is fixedly provided with a The terminal block 101 of the switch cabinet 100 is provided with a bus bar 200, and the body of the adjustable connection device includes an insulating tube 1 fixedly connected to the top of the top tube of the cabinet. The telescopic conduction assembly, the insulating tube 1 is sealed and movable on the outside of the bus bar 200, wherein the inner side of the insulating tube 1 is bonded and fixed with a sealing rubber sleeve 14, and the inner side of the sealing rubber sleeve 14 is fitted with the outer side of the bus bar 200 to play a role For the effect of sealing the outer side of the insulating tube 1, the wire core in the bus bar 200 itself is in tight contact with the top of the elastic telescopic conduction assembly, and the elastic telescopic conduction assembly is used to elastically close the wire core in the bus bar 200 itself. The elastic telescopic conduction assembly includes a copper tube 2 fixedly connected to the top of the terminal block 101, the bottom end of the copper tube 2 is set as a plugging structure, the inner sliding sleeve of the copper tube 2 is provided with a copper rod 4, and the bottom end of the copper rod 4 is connected to the copper rod 4. An insulating spring 3 in a compressed state is fixedly connected between the inner walls of the bottom end of the tube 2, and a copper block 5 is fixedly connected to the top of the copper rod 4. Copper pipe 2, copper rod 4, and insulating spring 3 in a compressed state cooperate with copper block 5, and the elastic force of insulating spring 3 can be used to elastically connect copper block 5 and the wire core in bus bar 200 itself;

The outer side of the insulating pipe 1 is fixedly fitted with an externally threaded casing 6, and the threaded sleeve on the externally threaded casing 6 is provided with an internally threaded casing 7, utilizing the thread connection relationship between the internally threaded casing 7 and the externally threaded casing 6 to facilitate When the internally threaded casing 7 rotates and moves vertically, the four sides of the internally threaded casing 7 are fixedly connected with handle rods 15, and both sides of the busbar 200 are equipped with arc-shaped clamping blocks 8, two arc-shaped The sides of clamping blocks 8 close to each other are bonded and fixed with non-slip rubber, which enhances the effect of anti-slip performance during clamping. The tube 6 is slidably sleeved on two elastic guide assemblies, and the elastic guide assemblies are used for laterally guiding the arc-shaped clamp block 8, wherein the elastic guide assemblies include a guide rod 10 and a first spring 9, and one end of the two guide rods 10 is close to each other They are respectively fixedly connected to the sides of the two arc-shaped clamping blocks 8 that are far away from each other, and the externally threaded sleeve 6 is slidably sleeved on the two guide rods 10, wherein the inner walls of both sides of the externally threaded sleeve 6 are provided with rectangular guide holes , and the inner wall of the rectangular guide hole and the outer sliding sleeve of the corresponding guide rod 10, the externally threaded sleeve 6 is slidably sleeved on the two guide rods 10 through the two rectangular guide holes, so as to guide the lateral sliding of the guide rod 10 As a result, the ends of the two first springs 9 that are close to each other are fixedly connected to the sides of the two arc-shaped clamping blocks 8 that are far away from each other, and the ends of the two first springs 9 that are far away from each other are respectively connected to the inner walls on both sides of the externally threaded sleeve 6. Fixedly connected, the set guide rod 10 cooperates with the first spring 9, and can guide the arc clamp block 8 laterally;

The inner rotating sleeve of the internally threaded sleeve 7 is provided with an extrusion displacement driving assembly fixedly connected to the top end of the externally threaded sleeve 6. The inner side of the extrusion displacement driving assembly is hinged with two extrusion rods 11 arranged obliquely and symmetrically. The bottom ends of the rods 11 are respectively hinged to the sides of the two arc-shaped clamping blocks 8 that are far away from each other, and the extrusion displacement driving assembly is used to drive the two arc-shaped clamping blocks 8 to move close to or oppositely through the two extrusion rods 11, and squeeze The pressure displacement driving assembly includes a circular ring 12 that is rotatably set in the internally threaded sleeve 7, wherein the internally threaded sleeve 7 is fixedly connected with a rotating bearing 16, and the inner ring of the rotating bearing 16 is fixedly connected with the outer side of the circular ring 12 , to play the role of supporting the rotation of the ring 12, the busbar 200 is located in the ring 12, the two sides of the top of the external threaded casing 6 are fixedly connected with the guide column 13, and the ring 12 is slidably sleeved on the two guide columns 13 wherein guide holes are provided on both sides of the top of the ring 12, and the inner wall of the guide hole is slidingly connected to the outer side of the corresponding guide post 13, and the ring 12 is slidably sleeved on the two guide posts 13 through the two guide holes, Play the effect of vertically sliding and guiding the circular ring 12, the inner walls on both sides of the circular ring 12 are respectively hinged with the tops of the two extrusion rods 11, the provided circular ring 12 and guide column 13 cooperate with the internal thread sleeve 7, The ring 12 can be driven to move up and down, so that when the ring 12 moves down, the two extrusion rods 11 can be driven to rotate and squeeze the two arc-shaped clamping blocks 8 to the middle, thereby driving the two arc-shaped clamping blocks 8 Move toward the middle to carry out the clamping work, and when the ring 12 moves up and pulls the two extruding rods 11 to turn upwards, the two arc-shaped clamping blocks 8 are driven to move in opposite directions. The connection height of the busbar 200 can be quickly adjusted by the conduction method, so as to facilitate the adjustment of the height of the wiring position according to different wiring height requirements, and it is convenient and fast to clamp, unlock and disassemble the busbar 200 by simple pulling, which is easy to operate and improves The efficiency and convenience of disassembly and assembly provide convenience for personnel to disassemble and assemble the busbar 200 .

Working principle: when installing, directly insert the bottom end of the bus bar 200 into the insulating tube 1, and make the bottom end of the bus bar 200 itself stick to the top of the copper block 5. At this time, the bottom end of the bus bar 200 is at a higher position. When the height of the bottom end of the busbar 200 needs to be adjusted downwards according to the installation height requirements, the busbar 200 is inserted downward, and the core of the busbar 200 itself squeezes the copper block 5 downward. Under the extrusion force, the copper block 5 moves downward and drives the The copper rod 4 slides downwards in the copper tube 2, and the copper rod 4 compresses the insulating spring 3 downwards. After inserting to the height that needs to be installed, stop pressing and inserting. At this time, the insulating spring 3 in the compressed state can also ensure The copper block 5 is always in tight and fitting contact with the bottom end of the busbar 200's own core. Under the action of the elastic tight fitting contact, the terminal block 101 can pass through the copper tube 2, the copper rod 4 and the copper block 5 and the busbar in turn. 200 stable conduction, making it convenient to adjust the height of the wiring position according to different wiring height requirements;

Wherein, after the insertion is completed, the personnel pulls the handle bar 15 forward to drive the internally threaded sleeve 7 to rotate forwardly, the internally threaded sleeve 7 rotates on the externally threaded sleeve 6 and moves downward, and the internally threaded sleeve 7 passes through the rotating bearing 16 The circular ring 12 is driven to slide downward on the two guide columns 13, and the circular ring 12 drives the two extrusion rods 11 to rotate and squeeze the two arc-shaped clamp blocks 8 to the middle. Under the extrusion force, the two arc-shaped clamps The block 8 moves to the middle, and the arc-shaped clamping block 8 drives the corresponding guide rod 10 to move and stretches the first spring 9. At the same time, the two arc-shaped clamping blocks 8 drive two anti-slip rubbers to clamp the busbar 200 in the middle, so that it is convenient The busbar 200 is clamped conveniently and quickly by simple pulling, which improves the efficiency and convenience of installation and fixing;

When the follow-up needs to be disassembled, the handle bar 15 is pulled in the opposite direction to drive the internally threaded sleeve 7 to rotate in the opposite direction, which is completely opposite to the forward rotation of the internally threaded sleeve 7. At this time, the ring 12 is transformed into an upward rotation. and drive the two extruding rods 11 to pull back the two arc-shaped clamping blocks 8 in a direction away from each other. At this time, the elastic force of the two first springs 9 in the stretched state also assists the two arc-shaped clamping blocks 8 Move in a direction away from each other to release the clamping of the busbar 200. At this time, the busbar 200 can be pulled out directly upwards to separate it from the copper block 5, and the disassembly is completed, making it convenient and fast to align the busbar by simply pulling. 200 splits.

In this practical description, it should also be noted that, unless otherwise specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, or It may be detachably connected, or integrally connected, may be mechanically connected, may also be electrically connected, may be directly connected, may also be connected through an intermediary, and may be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. A cabinet top pipe bus bar connection device for a switchgear, comprising an adjustable connection device body fixedly connected to the top of the top pipe of the switch cabinet (100), the top of the switch cabinet (100) is fixedly provided with a The terminal block (101) of the switch cabinet (100) is provided with a bus bar (200), which is characterized in that the body of the adjustable connection device includes an insulating tube (1) fixedly connected to the top of the top tube of the cabinet, and the insulation The tube (1) is provided with an elastic telescopic conduction assembly fixedly connected to the top of the terminal block (101). The top of the elastic telescopic conduction component is squeezed into contact; The outer side of the insulating tube (1) is fixedly fitted with an externally threaded sleeve (6), and the upper threaded sleeve of the externally threaded sleeve (6) is provided with an internally threaded sleeve (7), and the four sides of the internally threaded sleeve (7) Both are fixedly connected with a handle bar (15), both sides of the busbar (200) are equipped with arc-shaped clamping blocks (8), and the sides of the two arc-shaped clamping blocks (8) away from each other are fixedly connected with elastic guide components , the externally threaded sleeve (6) is slidingly sleeved on two elastic guide components, the inner rotating sleeve of the internally threaded sleeve (7) is provided with an extrusion displacement driving assembly fixedly connected to the top end of the externally threaded sleeve (6), Two extrusion rods (11) arranged obliquely and symmetrically are hinged on the inner side of the pressure displacement drive assembly, and the bottom ends of the two extrusion rods (11) are respectively hinged with the sides of the two arc-shaped clamping blocks (8) away from each other . 2. The cabinet top pipe bus bar connection device of a switchgear according to claim 1, characterized in that, the elastic telescopic conduction assembly includes a copper pipe (2) fixedly connected to the top of the terminal block (101), and the copper pipe (2) The bottom end of the tube (2) is set as a plugging structure, the inner sliding sleeve of the copper tube (2) is provided with a copper rod (4), and the bottom end of the copper rod (4) is fixed to the inner wall of the bottom end of the copper tube (2). An insulating spring (3) in a compressed state is connected, a copper block (5) is fixedly connected to the top of the copper rod (4), and the bottom end of the busbar (200) itself is in tight contact with the top of the copper block (5). 3. A cabinet top pipe bus connection device for a switchgear according to claim 1, characterized in that the elastic guide assembly includes a guide rod (10) and a first spring (9), two guide rods (10 ) that are close to each other are fixedly connected to the sides of the two arc-shaped clamping blocks (8) that are far away from each other. 9) The ends that are close to each other are fixedly connected with the sides of the two arc-shaped clamping blocks (8) that are far away from each other, and the ends of the two first springs (9) that are far away from each other are respectively connected to the inner walls of both sides of the externally threaded sleeve (6). Fixed connection. 4. A cabinet top pipe bus connection device for a switchgear according to claim 1, characterized in that the extrusion displacement drive assembly includes a ring (12) that is rotatably sleeved in the inner threaded sleeve (7) ), the busbar (200) is located in the ring (12), the two sides of the top of the external threaded casing (6) are fixedly connected with guide posts (13), and the ring (12) is slidingly sleeved on the two guide posts (13 ), the inner walls on both sides of the ring (12) are respectively hinged with the top ends of the two extrusion rods (11). 5. A switchgear cabinet top pipe bus connection device according to claim 1, characterized in that the sides of the two arc-shaped clamping blocks (8) close to each other are bonded and fixed with non-slip rubber. 6. A cabinet top pipe bus connection device for a switchgear according to claim 1, characterized in that, the inner side of the insulating pipe (1) is bonded and fixed with a sealing rubber sleeve (14), and the sealing rubber sleeve ( 14) The inner side and the outer side of busbar (200) match suit. 7. A cabinet top pipe bus connection device for a switchgear according to claim 4, characterized in that, the inner threaded sleeve (7) is fixedly connected with a rotating bearing (16), and the rotating bearing (16) The inside of the inner ring is fixedly connected with the outside of the ring (12).

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