Bus duct plug-in box plug-in device

Abstract

The application discloses a bus duct plug-in box, which comprises a plug-in box body, a plug pin seat assembly, a hinged device and a plug-pull device. The plug-pull device comprises a shell, a transmission mechanism, a chain and a sprocket meshed with the chain. The transmission mechanism is movably arranged in the shell, and the power input end of the transmission mechanism is arranged outside the shell. The transmission mechanism is connected and driven with the sprocket. The sprocket and the chain are arranged in the shell. One end of the chain extends out of the plug-in box body. The plug pin seat assembly, the hinged device and the plug-pull device are arranged on the same side of the plug-in box body. The application has the advantages of small structure volume, improved stability of the bus duct plug-in box and the bus duct plug-in, ensured normal operation of equipment, reduced safety hazards, improved strength of the plug-in box body around the plug pin seat assembly by installing the plug-pull device and the plug pin seat assembly on the same side of the plug-in box body, more powerful plug-in, and reduced deformation of the plug-in box bottom plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bus duct plug-in box, more particularly to a bus duct plug-in box plug device. BACKGROUND

[0002] The bus duct plug-in box on the current market is of plug-in structure, and a conductive copper pin at the bottom of the plug-in box is inserted into a copper pile head in a bus duct plug-in seat, so that electrical connection of the plug-in box is completed, external connection is mainly to fix the plug-in box on the bus duct through front and rear hooks and guide plates, and only when the internal copper pin and the copper pile head are plugged in place, the external hooks can be fixed. Similarly, the plug-in box is mainly pulled out by separating the copper pin and the copper pile head. The copper pin mainly has a copper conductive sheet and a manganese steel spring clip, the conductive copper sheet of the copper pin is clamped by the clamping force of the spring clip, the reliability of power supply is ensured, the gap between the two conductive sheets of the copper pin is small in order to maintain the spring clip, the clamping force of the copper pin inserted into the pile head is too large, and about 30 kilograms of force is required to insert the copper pin into the copper pile head. When five pins are plugged together, the resistance is very large, the bottom of the box body is deformed, and the plug-in box cannot be plugged in place, the temperature at the contact between the pin and the pile head is high during operation of the plug-in box, the insulation is aged, a short circuit accident is caused, and a power failure phenomenon occurs. At the same time, the volume of the plug-in box is too large, and the box body cannot be optimized when following the standard design.

[0003] In summary, how to solve the problems of the existing bus duct plug-in box, such as not being plugged in place and being too large in volume, is a problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0004] Therefore, the present application aims to provide a bus duct plug-in box with a smaller volume, which can be plugged in place.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A bus duct plug-in box, comprising: a plug-in box body, a pin seat assembly, a hinged device and a plug device, the plug device comprising a shell, a transmission mechanism, a chain, and a sprocket meshing with the chain, the transmission mechanism being movably arranged in the shell, the power input end of the transmission mechanism being arranged outside the shell, the transmission mechanism being connected and driven with the sprocket, the sprocket and the chain being arranged in the shell, one end of the chain extending out of the plug-in box body, the pin seat assembly, the hinged device and the plug device being arranged on the same side of the plug-in box body.

[0007] Preferably, the transmission mechanism comprises a worm gear mechanism and a driving assembly, the worm gear mechanism is provided with a worm gear, the worm gear is connected with the driving assembly, and the driving assembly is connected with the sprocket wheel.

[0008] Preferably, the driving assembly comprises a transmission shaft, a first bevel gear and a second bevel gear meshing with the first bevel gear, the first bevel gear is coaxially connected with the worm gear of the worm gear mechanism, and the second bevel gear is coaxially connected with the sprocket wheel through the transmission shaft.

[0009] Preferably, the housing is provided with a chain groove, and the other end of the chain is connected with the chain groove through an elastic member.

[0010] Preferably, the housing is a U-shaped housing, and the pin seat assembly is arranged between the U-shaped arms of the U-shaped housing.

[0011] Preferably, the chain groove is arranged in each of the two U-shaped arms of the U-shaped housing, the chain is arranged in each of the chain grooves, the sprocket wheels are arranged on the two sides of the U-shaped housing, and the transmission mechanism is symmetrically arranged in the U-shaped housing.

[0012] Preferably, the plug-in box is provided with a circuit breaker, and the circuit breaker is mounted in the plug-in box through a mounting plate.

[0013] Preferably, the hinging device comprises a plug-in box guide plate and a guide groove arranged on the plug-in box guide plate, and the guide groove is used for hinging with the positioning bolt of the bus duct.

[0014] When plugging is needed, the hinging device is hinged to the positioning bolt of the bus duct, power is input into the transmission mechanism through the power input end, the transmission mechanism drives the sprocket wheel to rotate, the sprocket wheel meshes with the chain, and the outer end of the chain is fixed, so that the sprocket wheel moves along the chain under the torque of the sprocket wheel, that is, the sprocket wheel moves towards the bus duct, the sprocket wheel drives the entire plug-in box body to move towards the bus duct, and the plug-in box body rotates around the hinge point of the hinging device to be completely connected with the bus duct.

[0015] The bus duct plug-in box provided in the application is used for large-volume plug-in boxes of 400A or more, has a small structure, improves the stability of the bus duct plug-in box and the bus duct plug-in, ensures normal operation of equipment, and reduces safety hazards; the plug-in device and the pin seat assembly are installed on the same side of the plug-in box body, the strength of the plug-in box body around the pin seat assembly is improved, the plugging is more powerful, and the deformation of the plug-in box bottom plate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute a part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on the provided drawings.

[0017] Figure 1 The internal structure diagram of the bus duct plug-in box provided by the present application is shown in the figure.

[0018] Figure 2 The application schematic diagram of the bus duct plug-in box provided by the present application is shown in the figure.

[0019] Figure 3 The exploded view of the plug-in device provided by the present application is shown in the figure.

[0020] Figure 4 The structure diagram of the transmission mechanism provided by the present application is shown in the figure.

[0021] Figure 5 The structure diagram of the transmission mechanism provided by the present application is shown in the figure.

[0022] Figures 1-5 In the figure:

[0023] 1-plug-in device, 2-mounting plate, 3-plug-in box body, 4-circuit breaker, 5-worm, 6-plug pin seat assembly, 7-bus duct, 8-guide groove, 9-plug-in box guide plate, 10-elastic member, 11-housing, 12-sprocket, 13-positioning bolt, 14-tensioning bolt, 15-side plate, 16-U-shaped arm, 17-chain groove, 18-chain, 19-bottom plate, 20-small plug-in joint, 21-first bearing, 22-second bearing, 23-first bevel gear, 24-second bevel gear. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, and for those skilled in the art, all other embodiments obtained without creative labor based on the embodiments in the present application also belong to the protection scope of the present application.

[0025] The core of the present application is to provide a bus duct plug-in box with smaller volume, which can realize plug-in in place.

[0026] Please refer to Figures 1-5The bus duct plug-in box comprises a plug-in box body 3, a plug pin seat assembly 6, a hinging device and a plug-pull device 1, the plug-pull device 1 comprises a shell 11, a transmission mechanism, a chain 18, a sprocket 12 engaged with the chain 18, the transmission mechanism is movably arranged in the shell 11, a power input end of the transmission mechanism is arranged outside the shell 11, the transmission mechanism is connected and driven with the sprocket 12, the sprocket 12 and the chain 18 are arranged in the shell 11, one end of the chain 18 extends out of the plug-in box body 3, the plug pin seat assembly 6, the hinging device and the plug-pull device 1 are arranged on the same side of the plug-in box body 3.

[0027] It should be noted that the hinging device is arranged outside the plug-in box body 3, the plug pin seat assembly 6 and the plug-pull device 1 are arranged in the plug-in box body 3, the plug pin seat assembly 6 protrudes from the side of the box body to be connected with the bus duct 7, the chain 18 is movably arranged in the shell 11, and the end extending out of the plug-in box body 3 is used to be connected with the tensioning bolt 14 of the bus duct 7.

[0028] When plug-in is needed, the hinging device is hinged to the positioning bolt 13 of the bus duct 7, power is input into the transmission mechanism through the power input end, the transmission mechanism drives the sprocket 12 to rotate, the sprocket 12 is engaged with the chain 18, and the outer end of the chain 18 is fixed, so that the sprocket 12 moves along the chain 18 under the torque of the sprocket 12, that is, the sprocket 12 moves towards the bus duct 7, the sprocket 12 drives the entire plug-in box body 3 to move towards the bus duct 7, so that the plug-in box body 3 rotates around the hinge point of the hinging device to be completely connected with the bus duct 7.

[0029] The bus duct plug-in box provided in the application is used for large-volume plug-in boxes above 400A, has a small structure, improves the stability of the plug-in of the bus duct plug-in box and the bus duct 7, ensures normal operation of the equipment, and reduces safety hazards. The plug-pull device and the plug pin seat assembly 6 are installed on the same side of the plug-in box body 3, which improves the strength of the plug-in box body 3 around the plug pin seat assembly 6, makes the plug-in more powerful, and reduces the deformation of the plug-in box bottom plate 19.

[0030] On the basis of the above embodiment, as a further preferred, the transmission mechanism comprises a worm gear 5 mechanism and a drive assembly, the worm gear 5 mechanism worm 5 outer end is the power input end of the transmission mechanism, the worm gear 5 mechanism worm gear and the drive assembly is connected to drive, the drive assembly and the sprocket 12 is connected. Worm 5 outer end is provided with 1 / 4 small fly joint 20, can be equipped with 1 / 4 sleeve connecting rod with electric air gun or ratchet wrench clockwise or counterclockwise rotation to realize the plug-in and pull out. Worm 5 position can be set in the tail of the plug-in box, also can be set in the top, at the same time, the plug-in box 3 can be provided with a blocking door, when the switch is closed, the blocking door opens to rotate the worm 5. Worm gear mechanism has self locking function, when not rotating the worm 5, the internal meshing mechanism will not rotate, forming a lock state, ensure that the plug-in box and bus duct 7 is always in the combined state.

[0031] On the basis of the above embodiment, as a further preferred, the drive assembly comprises a transmission shaft, a first bevel gear 23 and a second bevel gear 24 meshing with the first bevel gear 23, the first bevel gear 23 is coaxially connected with the worm gear of the worm gear 5 mechanism, and the second bevel gear 24 is coaxially connected with the sprocket 12 through the transmission shaft. The axis of the first bevel gear 23 and the second bevel gear 24 are perpendicular to each other, and the setting of the bevel gear can convert the longitudinal rotation into the transverse rotation, which is more convenient for the arrangement of the drive assembly and saves the occupied space of the drive assembly.

[0032] Preferably, the transmission shaft is installed in the shell through the first bearing 21, and the worm 5 is installed in the shell through the second bearing 22, so as to ensure the stability of the rotation of the worm 5 and the transmission shaft.

[0033] When the worm 5 is rotated, the chain 18 is driven to run, and the chain 18 may be rotated by 360° along the sprocket 12, which causes the chain 18 to be stuck. In order to avoid the above problem, on the basis of the above embodiment, as a further preferred, the chain groove 17 is arranged in the shell 11, and the other end of the chain 18 is connected with the chain groove 17 through the elastic member 10, and the elastic member 10 is in tension state, so as to ensure that the chain 18 is always tensioned and prevents the chain 18 from being stuck.

[0034] In order to further save the installation space, on the basis of the above embodiment, as a further preferred, the shell 11 is a U-shaped shell, and the pin seat assembly 6 is arranged between the U-shaped arms 16 of the U-shaped shell.

[0035] In order to ensure more stable transmission, on the basis of the above embodiment, as a further preferred, the two U-shaped arms 16 of the U-shaped shell are provided with the chain groove 17, each of the chain groove 17 is provided with the chain 18, the two sides of the U-shaped shell are provided with the sprocket 12, and the transmission mechanism is symmetrically arranged in the U-shaped shell. The U-shaped shell is symmetrically arranged on the side plate 15 of the plug-in box body 3, so that the U-shaped shell is a symmetrical structure relative to the plug-in box body 3. By arranging the chain 18 in the two symmetrical U-shaped arms 16 of the U-shaped shell, the two sides of the plug-in box body 3 can move synchronously, and the deformation of the side plate 15 of the plug-in box body 3 is avoided.

[0036] The U-shaped shell includes a U-shaped framework, and installation cavities are arranged on both sides and the middle of the U-shaped framework. The two sides are respectively provided with side plates 15, so as to facilitate the installation of the chain 18, the sprocket 12, the transmission shaft, the elastic member 10 and other devices. The bottom is provided with a bottom plate 19, so as to facilitate the installation of the driving assembly.

[0037] Preferably, the U-shaped shell is made of aluminum alloy casting and then machined, which has the advantages of good corrosion resistance and light weight, and can minimize the overall weight of the plug-in box.

[0038] In order to further improve the safety, on the basis of the above embodiment, as a further preferred, the plug-in box body 3 is provided with a circuit breaker 4, the circuit breaker 4 is installed in the plug-in box body 3 through the mounting plate 2, and the circuit breaker 4 is connected with the pin seat assembly 6, so as to avoid safety accidents caused by overload.

[0039] On the basis of the above embodiment, as a further preferred, the hinge device includes a plug-in box guide plate 9 and a guide groove 8 arranged on the plug-in box guide plate 9, and the guide groove 8 is used for being hinged with the positioning bolt 13 of the bus duct 7. The inner end of the guide groove 8 is bent to the side, so as to improve the stability of the hinge with the positioning bolt 13 and avoid the shaking of the positioning bolt 13 in the guide groove 8.

[0040] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0041] The above has carried on the detailed introduction to the bus duct plug-in box provided by the application. The principle and implementation mode of the application are described by applying specific examples in this paper. The above embodiment is only used to help understand the method and core idea of the application. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the application without departing from the principle of the application. These improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A bus duct splice box characterized by, The utility model relates to a plug-in box, a pin seat assembly, a hinge device and a plug device, the plug device comprises a shell, a transmission mechanism, a chain, a sprocket engaged with the chain, the transmission mechanism is movably arranged in the shell, the power input end of the transmission mechanism is arranged outside the shell, the transmission mechanism is connected and driven with the sprocket, the sprocket and the chain are all arranged in the shell, one end of the chain is stretched out from the plug-in box, the pin seat assembly, the hinge device and the plug device are all arranged on the same side of the plug-in box. The transmission mechanism comprises a worm and gear mechanism and a driving assembly, the outer end of the worm of the worm and gear mechanism is the power input end of the transmission mechanism, the worm wheel of the worm and gear mechanism is connected and driven with the driving assembly, the driving assembly is connected with the sprocket. The driving assembly comprises a transmission shaft, a first bevel gear and a second bevel gear engaged with the first bevel gear, the first bevel gear is coaxially connected with the worm wheel of the worm and gear mechanism, the second bevel gear is coaxially connected with the sprocket through the transmission shaft. The shell is provided with a chain groove, the other end of the chain is connected with the chain groove through an elastic element. The chain is movably arranged in the shell, one end of the chain stretched out of the plug-in box is used for being connected with a tensioning bolt of the bus duct. The shell is a U-shaped shell, the pin seat assembly is arranged between the U-shaped arms of the U-shaped shell.

2. The busway junction box of claim 1, wherein, The chain groove is arranged in each U-shaped arm of the U-shaped shell, the chain is arranged in each chain groove, the sprocket is arranged on the two sides of the U-shaped shell, and the transmission mechanism is symmetrically arranged in the U-shaped shell.

3. The busway junction box of claim 2, wherein, The plug-in box is provided with a circuit breaker, and the circuit breaker is installed in the plug-in box through a mounting plate.

4. The busway junction box of claim 1, wherein, The hinge device comprises a plug-in box guide plate and a guide groove arranged on the plug-in box guide plate, and the guide groove is used for being hingedly connected with a positioning bolt of the bus duct.

5. The busway junction box of claim 1, wherein, ​

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