Bus duct based on rail transit direct current traction technology

Abstract

The utility model relates to a bus duct based on a rail transit direct current traction technology, which comprises a shell, a copper bar and a cover plate, locking assemblies used for locking the cover plate are arranged on the outer surfaces of the two sides of the shell, and each locking assembly comprises a fixing frame, a pull rod, a special-shaped part, a separation blade and a limiting spring. When the locking assembly is used, the pull rod can be pulled to move backwards, the limiting spring is compressed through the blocking piece in the backward moving process of the pull rod, the special-shaped piece is guided out of the special-shaped hole at the moment, then the special-shaped piece is rotated to be staggered with the special-shaped hole, then the pull rod is loosened, the limiting spring rebounds, the blocking piece can tightly attach the special-shaped piece to the two sides of the shell, and locking is achieved. When the cover plate is installed, the pull rod can be pulled firstly, then the special-shaped piece is rotated to be aligned with the special-shaped hole, then the special-shaped piece is bounced into the special-shaped hole through the limiting spring, and at the moment, the front end of the pull rod is inserted into the positioning hole to position and fix the cover plate, so that positioning and fixing of the cover plate are completed, and using is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to bus duct technical field especially a bus duct based on rail transit direct current traction technology. BACKGROUND

[0002] Rail transit direct current traction technology refers to the technology that utilizes direct current power supply to provide power for train, mainly through direct current traction motor to convert electric energy into mechanical energy to drive train to travel, and this technical system mainly includes direct current power supply, traction motor, transmission device and control system and other components;

[0003] In the construction process of rail transit direct current traction, bus duct needs to be used for power transmission and distribution, but the existing bus duct has certain inconvenience when being used.

[0004] Firstly, the cover plate part of the existing bus duct is installed and connected through a plurality of screw shell parts, when the copper bar inside the shell fails, the cover plate part and the shell part are inconvenient to disassemble and assemble, and there is certain inconvenience when being used.

[0005] Therefore, we propose a bus duct based on rail transit direct current traction technology. CONTENT OF THE UTILITY MODEL

[0006] In view of the technical problem that the cover plate part is installed and connected through a plurality of screw shell parts in the prior art, when the copper bar inside the shell fails, the cover plate part and the shell part are inconvenient to disassemble and assemble, the utility model provides a bus duct based on rail transit direct current traction technology.

[0007] The technical scheme adopted by the utility model is as follows: a bus duct based on rail transit direct current traction technology, including shell, copper bar and cover plate, the outer surface of both sides of the shell is provided with locking assembly for locking the cover plate, the locking assembly includes fixed frame, pull rod, heterogeneous piece, baffle and limiting spring, the middle part of the pull rod is movably connected with the fixed frame, the heterogeneous piece and the baffle are arranged on the outer wall of the pull rod, the heterogeneous piece is located on one side of the baffle, and the limiting spring is arranged between the baffle and the fixed frame.

[0008] Further, the lower end outer surface of the shell is provided with fixed plate strip, the middle part of the shell is provided with heat conduction gasket and supporting piece, the heat conduction gasket is located below the supporting piece, and the outer surface of both sides of the shell is provided with heterogeneous hole.

[0009] Further, the outer surface of both sides of the cover plate is provided with positioning hole, the outer wall of the copper bar is provided with insulating outer skin, the lower end outer surface of the cover plate is provided with embedding groove, the middle part of the embedding groove is provided with fireproof strip, and the inside of the fireproof strip is provided with flame-retardant filler.

[0010] Further, the outer wall of the pull rod is movably connected with the inner wall of the special-shaped piece, and the pull rod is welded with the baffle.

[0011] Further, the baffle is movably connected with the fixing frame through the limiting spring, and an end of the pull rod is provided with an end handle.

[0012] Further, the outer shell is welded with the fixing plate strip, and the middle part of the fixing plate strip is provided with a fixing wire.

[0013] Further, the fireproof strip is detachably connected with the cover plate through the embedding groove, and the fireproof strip and the flame-retardant filler are in an integral molding structure.

[0014] The utility model discloses the beneficial effect is:

[0015] 1, the locking assembly in the utility model can pull the pull rod to move back when using, makes the pull rod compress the limiting spring through the baffle in the process of moving back, the special-shaped piece is guided out from the special-shaped hole at this time, then rotates the special-shaped piece to make it be out of position with the special-shaped hole, then loosens the pull rod, the limiting spring bounces back the baffle at this time, can fasten the special-shaped piece to the both sides of the outer shell, can dismantle and open the cover plate at this time, when installing the cover plate, need to reset the cover plate, then pull the pull rod, rotate the special-shaped piece and the special-shaped hole align again, then the special-shaped piece is bounced into the special-shaped hole through the limiting spring again at this time, the front end of the pull rod is inserted into the positioning hole and is positioned and fixed to the cover plate, thereby completing the positioning and fixing of the cover plate, and it is convenient to use.

[0016] 2, the fireproof strip in the utility model can play the effect of protection and flame retardation when using, when the insulating outer skin in the outer shell has a fire, the fireproof strip will be damaged by heat, then the flame-retardant filler falls and scatters on the copper bar, and the copper bar can be protected and flame-retarded. DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 It is the internal structure diagram of the outer shell of the utility model;

[0019] Figure 3 It is the structure diagram of the locking assembly of the utility model;

[0020] Figure 4 It is the bottom structure diagram of the cover plate of the utility model.

[0021] Marked in the figure: 1, the shell; 2, copper row; 3, cover plate; 4, locking assembly; 41, fixed frame; 42, pull rod; 43, the female part; 44, baffle; 45, limit spring; 5, fixed batten; 6, fixed silk; 7, heat-conducting gasket; 8, the supporting piece; 9, the female hole; 10, positioning hole; 11, insulating sheath; 12, embedding groove; 13, fireproof strip; 14, fire-retardant filler. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is explained that the orientation or position relationship indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, it is explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The following will be combined with the drawings Figures 1-4 The utility model is further explained.

[0025] In order to solve the problems in the background art, the present application proposes the following technical scheme: a bus duct based on rail transit direct current traction technology.

[0026] In the specific technical scheme, the shell 1, the copper bar 2 and the cover plate 3 are provided, the two side outer surfaces of the shell 1 are provided with locking assemblies 4 for locking the cover plate 3, the locking assembly 4 comprises a fixed frame 41, a pull rod 42, a heterogeneous piece 43, a baffle 44 and a limiting spring 45, the pull rod 42 is movably connected to the middle part of the fixed frame 41, the heterogeneous piece 43 and the baffle 44 are arranged on the outer wall of the pull rod 42, the heterogeneous piece 43 is located on one side of the baffle 44, the limiting spring 45 is arranged between the baffle 44 and the fixed frame 41, the locking assembly 4 can pull the pull rod 42 to move backward in use, the baffle 44 compresses the limiting spring 45 in the process of backward movement of the pull rod 42, at this time, the heterogeneous piece 43 is guided out of the heterogeneous hole 9, then the heterogeneous piece 43 is rotated to be misaligned with the heterogeneous hole 9, then the pull rod 42 is loosened, at this time, the limiting spring 45 rebounds the baffle 44, the heterogeneous piece 43 can be tightly attached to the two sides of the shell 1, at this time, the cover plate 3 can be disassembled and opened, when the cover plate 3 is installed, the cover plate 3 needs to be reset, then the pull rod 42 is pulled, the heterogeneous piece 43 is rotated to be aligned with the heterogeneous hole 9, then the heterogeneous piece 43 is guided into the heterogeneous hole 9 through the limiting spring 45, at this time, the front end of the pull rod 42 is inserted into the positioning hole 10 to position and fix the cover plate 3, so that the positioning and fixing of the cover plate 3 are completed, which is convenient in use.

[0027] Further, the outer wall of the pull rod 42 is movably connected with the inner wall of the heterogeneous piece 43, the pull rod 42 is welded with the baffle 44, the baffle 44 is movably connected with the fixed frame 41 through the limiting spring 45, the outer surface of one end of the pull rod 42 is provided with an end handle, which can facilitate pulling of the pull rod 42 in use.

[0028] Referring to Figure 1 , Figure 2 and Figure 4 , the lower end outer surface of the shell 1 is provided with a fixed plate strip 5, the middle part of the shell 1 is provided with a heat-conducting gasket 7 and a supporting piece 8, the heat-conducting gasket 7 is located below the supporting piece 8, the two side outer surfaces of the shell 1 are provided with heterogeneous holes 9, the two side outer surfaces of the cover plate 3 are provided with positioning holes 10, the outer wall of the copper bar 2 is provided with an insulating outer skin 11, the lower end outer surface of the cover plate 3 is provided with an embedded groove 12, the middle part of the embedded groove 12 is provided with a fireproof strip 13, the inside of the fireproof strip 13 is provided with a fire-retardant filler 14, the heat-conducting gasket 7 is mainly used to help the copper bar 2 to dissipate heat in use.

[0029] Further, the shell 1 is welded with the fixed plate strip 5, the middle part of the fixed plate strip 5 is provided with a fixed wire 6, the fireproof strip 13 is detachably connected with the cover plate 3 through the embedded groove 12, the fireproof strip 13 and the fire-retardant filler 14 are an integral molding structure, the fireproof strip 13 can play a fireproof effect in use, when the insulating outer skin 11 in the shell 1 catches fire, the fireproof strip 13 will be damaged by heat, then the fire-retardant filler 14 will fall and scatter on the copper bar 2, which can play a fireproof effect on the copper bar 2.

[0030] In order for those skilled in the art to fully understand the technical solutions, the present application is made as follows:

[0031] When using, the locking assembly 4 can pull the pull rod 42 to move backward, the limit spring 45 is compressed by the blocking piece 44 during the backward movement of the pull rod 42, at this time, the special-shaped piece 43 is guided out of the special-shaped hole 9, then the special-shaped piece 43 is rotated to be misaligned with the special-shaped hole 9, then the pull rod 42 is loosened, at this time, the limit spring 45 rebounds the blocking piece 44, the special-shaped piece 43 is tightly attached to the two sides of the shell 1, at this time, the cover plate 3 can be disassembled and opened, when the cover plate 3 is installed, the cover plate 3 needs to be reset, then the pull rod 42 is pulled, the special-shaped piece 43 is rotated to be aligned with the special-shaped hole 9, then the special-shaped piece 43 is bounced into the special-shaped hole 9 through the limit spring 45, at this time, the front end of the pull rod 42 is inserted into the positioning hole 10 to position and fix the cover plate 3, so that the positioning and fixing of the cover plate 3 are completed, which is convenient in use, the fireproof strip 13 can play a fireproof effect in use, when the insulating outer skin 11 in the shell 1 catches fire, the fireproof strip 13 will be damaged by heat, then the fire-retardant filler 14 falls and scatters on the copper bar 2, which can play a fireproof effect on the copper bar 2.

[0032] The standard parts used in the utility model can be purchased from the market, the special-shaped pieces can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail, and the contents not described in detail in the description belong to the prior art known by the professional technicians in the field.

[0033] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A bus duct based on DC traction technology for rail transportation, characterized in that, The utility model provides a copper bar fixing device, including shell (1), copper bar (2) and apron (3), both sides outer surfaces of shell (1) are provided with locking assembly (4) for locking apron (3), locking assembly (4) includes fixed frame (41), pull rod (42), odd sex spare (43), baffle (44) and limit spring (45), the middle part of pull rod (42) is movably connected fixed frame (41), odd sex spare (43) and baffle (44) are all set up in the outer wall of pull rod (42), odd sex spare (43) is located in the one side of baffle (44), and limit spring (45) is set between baffle (44) and fixed frame (41).

2. The bus duct based on the DC traction technology of rail transit according to claim 1, characterized in that, The lower end outer surface of the shell (1) is provided with a fixed batten (5), the middle part of the shell (1) is provided with a heat-conducting gasket (7) and a supporting piece (8), the heat-conducting gasket (7) is located below the supporting piece (8), and the outer surfaces of both sides of the shell (1) are provided with a female hole (9).

3. The bus duct based on the DC traction technology of rail transit according to claim 1, characterized in that, The outer surfaces of both sides of the apron (3) are provided with a positioning hole (10), the outer wall of the copper bar (2) is provided with an insulating outer skin (11), the lower end outer surface of the apron (3) is provided with an embedding groove (12), the middle part of the embedding groove (12) is provided with a fireproof strip (13), and the inside of the fireproof strip (13) is provided with a flame-retardant filler (14).

4. The bus duct based on the DC traction technology of rail transit according to claim 1, characterized in that, The outer wall of the pull rod (42) is movably connected with the inner wall of the odd sex spare (43), and the pull rod (42) is welded with the baffle (44).

5. The bus duct based on the DC traction technology of rail transit according to claim 1, characterized in that, The baffle (44) is movably connected with the fixed frame (41) through the limit spring (45), and one end of the outer surface of the pull rod (42) is provided with an end handle.

6. The bus duct based on the DC traction technology of rail transit according to claim 2, characterized in that, The shell (1) is welded with the fixed batten (5), and the middle part of the fixed batten (5) is provided with a fixed wire (6).

7. The bus duct based on the DC traction technology of rail transit according to claim 3, characterized in that, The fireproof strip (13) is detachably connected with the apron (3) through the embedding groove (12), and the fireproof strip (13) and the flame-retardant filler (14) are integrally formed.

Images