A common box bus duct with a connecting mechanism for a power supply and distribution system

Abstract

The utility model belongs to the technical field of bus ducts, and particularly relates to a common box bus duct for a power supply and distribution system with a connecting mechanism, comprising a shell and a top cover, the top cover being installed on the top of the shell, and convenient disassembly and assembly devices are respectively provided at the four corner connections of the shell and the top cover, and a connecting device is provided at one end of the shell. The common box bus duct for a power supply and distribution system with a connecting mechanism, before removing the top cover, press from the outside of the clamping rod, so that the two clamping rods squeeze the compression spring toward the inside of the sliding cavity, and then press the connecting block to remove the top cover, and then when connecting the bus ducts at both ends, place the connecting bottom plate between the shells at both ends, and then screw the fixing bolts into the inside of the threaded holes of the ear plate and the bottom of the shell, and then insert the connecting box onto the connecting bottom plate, and the connecting busbars arranged inside it are respectively staggeredly connected with the busbars on one side of the shells at both ends, and then screw the connecting bolts into the inside of the bolt holes opened in the connecting box and the connecting bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, in particular to a common box type bus duct with a connecting mechanism for a power supply and distribution system. Background Art

[0002] Bus duct is a device responsible for transmitting and distributing electric energy in a low-voltage power supply system. There are many types of bus ducts, including common box bus ducts. However, the existing common box bus ducts are not convenient for replacing aging components during use, which undoubtedly shortens the service life of the bus duct. When connecting large lines, it cannot guarantee that the number of busbars can meet the needs of line connection, making it only suitable for small circuit connections, which in turn makes its scope of application smaller.

[0003] As disclosed in Chinese patent publication No. CN112152175A, a common-box bus duct with a connecting mechanism is used. When in use, the common-box bus duct is fixed in a suitable position and connected to the adjacent busbar through the wiring hole opened on the top. When the busbar ages after long-term use and needs to be replaced, the positioning block is removed by screws, and the movable plate is moved through the slider and the slide slot. The movable plate drives the busbar to move through the insulating block. The busbar is moved to the outside of the frame for replacement. When complex lines need to be connected and the number of busbars is insufficient, the second common-box bus duct is taken out, the movable plate is inserted into the adjacent slide rail cavity, and the movable plate is pushed. When the movable plate is moved to the card block and connected to the card slot cavity, the movable plate and the fixed block are stuck due to the elastic force of the spring, so that more busbars can be connected.

[0004] However, the common-box bus duct with a connecting mechanism in the above application generally has a relatively long overall length. If a movable plate sliding mechanism is added inside each section of the bus duct, the production cost is increased, and if maintenance and replacement are to be carried out in a narrow location, there may not be enough space to push out the movable plate. Therefore, there are certain limitations.

[0005] For this reason, we urgently need to provide a common box bus duct for a power supply and distribution system with a connecting mechanism. Utility Model Content

[0006] The purpose of the utility model is to provide a common box type bus duct with a connecting mechanism for a power supply and distribution system, so as to solve the problem that the common box type bus duct with a connecting mechanism proposed in the above background technology is generally long in overall length. If a movable plate sliding mechanism is added inside each section of the bus duct, the production cost is increased, and if maintenance and replacement are carried out in a narrow position, there may not be enough space to push out the movable plate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a common box bus duct for a power supply and distribution system with a connecting mechanism, comprising a shell and a top cover, wherein the top cover is installed on the top of the shell, and convenient disassembly and assembly devices are respectively provided at the four corner connections of the shell and the top cover, and a connecting device is provided at one end of the shell.

[0008] The convenient disassembly and assembly device includes a spring bin, a flexible spring, a connecting block, and a snap-on assembly. The spring bin is opened at the top right side of the front side of the shell, the flexible spring is installed inside the spring bin, the connecting block is fixedly connected to the front end of the flexible spring, and the snap-on assembly is installed inside the front end of the connecting block.

[0009] A further improvement is that the diameter of the connecting block is the same as the diameter of the spring compartment, and a fixing hole with the same diameter as the connecting block is also opened on the side of the top cover. When the top cover needs to be removed, the connecting block is pressed backward to squeeze the flexible spring and slide toward the inside of the spring compartment. The top cover is then removed from the top of the shell to repair and replace damaged parts inside it.

[0010] A further improvement is that the clamping assembly includes a sliding cavity, an extrusion spring, and a clamping rod. The sliding cavity is opened through the front end of the connecting block, the extrusion spring is installed in the sliding cavity, and the middle part is fixedly connected to the sliding cavity. The two clamping rods are respectively fixedly connected to the left and right ends of the extrusion spring, and are slidably connected to the inner wall of the sliding cavity. Before removing the top cover, press from the outside of the clamping rod so that the two clamping rods squeeze the extrusion spring toward the inside of the sliding cavity. Then, press the connecting block to remove the top cover. Otherwise, the top cover can be quickly installed. The top cover is clamped on the shell by setting the clamping rod, which increases the stability of the connection.

[0011] A further improvement is that an insulating block is installed at the inner bottom of the shell, and a busbar is plugged onto the insulating block. The arrangement of the insulating block provides good load performance and short-circuit resistance.

[0012] A further improvement is that the shell and the top cover are both made of steel plates, and their surfaces are sprayed with fire retardant paint, and the busbars are arranged in three rows with gaps between adjacent busbars.

[0013] A further improvement is that the connecting device includes a connecting base plate, an ear plate, fixing bolts, a connecting box, a connecting busbar, and connecting bolts. The connecting base plate is installed at one end of the shell, and the four ear plates are respectively fixedly connected to the front and rear ends of the left and right sides of the connecting base plate, and the four fixing bolts are respectively threadedly connected to the ear plates. The connecting box is plugged into the connecting base plate, and the connecting busbar is spaced apart inside the connecting box. The four connecting bolts are respectively installed at the left and right ends of the outer surfaces of the front and rear sides of the connecting box.

[0014] A further improvement is that a threaded hole is opened through the center of the ear plate, and a corresponding threaded hole is opened on one side of the shell, and bolt holes are opened on the left and right ends of the outer surfaces of the front and rear sides of the connecting base plate of the connecting box and the front and rear sides of the connecting base plate respectively. When connecting the bus ducts at both ends, the connecting base plate is placed between the shells at both ends, and then the fixing bolts are screwed into the threaded holes at the ear plate and the bottom of the shell, and then the connecting box is inserted onto the connecting base plate, and the connecting busbars arranged inside it are staggeredly connected with the busbars on one side of the shells at both ends, and then the connecting bolts are screwed into the bolt holes opened in the connecting box and the connecting base plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The common box bus duct for the power supply and distribution system with a connecting mechanism, before removing the top cover, press from the outside of the clamping rod, so that the two clamping rods squeeze the spring toward the inside of the sliding cavity, and then press the connecting block to remove the top cover, otherwise the top cover can be quickly installed, and the top cover is clamped on the shell by setting the clamping rod, which increases the stability of the connection.

[0017] 2. The power supply and distribution system with a connecting mechanism uses a common box bus duct. When the bus ducts at both ends are connected, the connecting base plate is placed between the shells at both ends, and then the fixing bolts are screwed into the threaded holes on the ear plate and the bottom of the shell. The connecting box is then inserted onto the connecting base plate, and the connecting busbars arranged inside it are staggeredly connected with the busbars on one side of the shells at both ends, and then the connecting bolts are screwed into the bolt holes opened in the connecting box and the connecting base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A schematic diagram of the cross-sectional structure viewed from above in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the bus duct at both ends of the utility model when connected;

[0021] Figure 4 For the utility model Figure 3 Schematic diagram of the split structure at B in the middle;

[0022] Figure 5 It is a schematic diagram of the internal structure of the shell of the utility model in cross-section.

[0023] In the figure: 1. Shell; 2. Top cover; 301. Spring compartment; 302. Flexible spring; 303. Connecting block; 304. Snap-in assembly; 3041. Sliding cavity; 3042. Extrusion spring; 3043. Snap-in rod; 401. Insulating block; 402. Busbar; 501. Connecting base plate; 502. Ear plate; 503. Fixing bolt; 504. Connecting box; 505. Connecting busbar; 506. Connecting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A common box bus duct for a power supply and distribution system with a connecting mechanism comprises a shell 1 and a top cover 2, wherein the top cover 2 is mounted on the top of the shell 1, convenient disassembly and assembly devices are respectively provided at the four corner connections of the shell 1 and the top cover 2, and a connecting device is provided at one end of the shell 1.

[0028] The convenient disassembly and assembly device includes a spring compartment 301, a flexible spring 302, and a connecting block 303. The spring compartment 301 is opened at the top right side of the front side of the shell 1, the flexible spring 302 is installed inside the spring compartment 301, the connecting block 303 is fixedly connected to the front end of the flexible spring 302, and the snap-on assembly 304 is installed inside the front end of the connecting block 303.

[0029] The diameter of the connecting block 303 is the same as that of the spring compartment 301, and a fixing hole with the same diameter as that of the connecting block 303 is also opened on the side of the top cover 2. When the top cover 2 needs to be removed, the connecting block 303 is pressed backward to squeeze the flexible spring 302 and slide toward the inside of the spring compartment 301. The top cover 2 is then removed from the top of the shell 1 to repair and replace the damaged parts inside it.

[0030] An insulating block 401 is installed at the inner bottom of the shell 1, and a busbar 402 is plugged on the insulating block 401. The setting of the insulating block 401 provides good load performance and short-circuit resistance. The shell 1 and the top cover 2 are both made of steel plates, and their surfaces are sprayed with fire-retardant paint. The busbars 402 are arranged in three rows, and there are gaps between adjacent busbars 402.

[0031] The connecting device includes a connecting base plate 501, an ear plate 502, a fixing bolt 503, a connecting box 504, a connecting busbar 505, and a connecting bolt 506. The connecting base plate 501 is installed at one end of the shell 1, and the four ear plates 502 are respectively fixedly connected to the front and rear ends of the left and right sides of the connecting base plate 501. The four fixing bolts 503 are respectively threadedly connected to the ear plates 502. The connecting box 504 is plugged into the connecting base plate 501. The connecting busbar 505 is spaced apart inside the connecting box 504. The four connecting bolts 506 are respectively installed at the left and right ends of the outer surfaces of the front and rear sides of the connecting box 504.

[0032] A threaded hole is provided through the center of the ear plate 502, and a corresponding threaded hole is also provided on one side of the shell 1. Bolt holes are provided on the left and right ends of the outer surfaces of the front and rear sides of the connecting base plate 501 of the connecting box 504 and on the front and rear sides of the connecting base plate 501. When the bus ducts at both ends are connected, the connecting base plate 501 is placed between the shells 1 at both ends, and then the fixing bolts 503 are screwed into the threaded holes at the ear plate 502 and the bottom of the shell 1. Then the connecting box 504 is inserted onto the connecting base plate 501, and the connecting busbar 505 arranged inside it is staggeredly connected with the busbar 402 on one side of the shells 1 at both ends, and then the connecting bolts 506 are screwed into the bolt holes opened on the connecting box 504 and the connecting base plate 501.

[0033] Embodiment 2:

[0034] On the basis of embodiment one, the convenient disassembly and assembly device includes a snap-in assembly 304, which includes a sliding cavity 3041, an extrusion spring 3042, and a snap-in rod 3043. The sliding cavity 3041 is opened through the front end of the connecting block 303, and the extrusion spring 3042 is installed in the sliding cavity 3041, and the middle part is fixedly connected to the sliding cavity 3041. The two snap-in rods 3043 are respectively fixedly connected to the left and right ends of the extrusion spring 3042, and are slidably connected to the inner wall of the sliding cavity 3041.

[0035] Before removing the top cover 2, press from the outside of the clamping rod 3043 so that the two clamping rods 3043 squeeze the extrusion spring 3042 toward the inside of the sliding cavity 3041, and then press the connecting block 303 to remove the top cover 2. Otherwise, the top cover 2 can be quickly installed. By setting the clamping rod 3043, the top cover 2 is clamped on the shell 1, which increases the stability of the connection.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A common box bus duct for a power supply and distribution system with a connecting mechanism, comprising a housing (1) and a top cover (2), wherein the top cover (2) is mounted on the top of the housing (1), characterized in that: Convenient disassembly and assembly devices are respectively provided at the four corner connections of the shell (1) and the top cover (2), and a communication device is provided at one end of the shell (1); The convenient disassembly and assembly device comprises a spring bin (301), a flexible spring (302), a connecting block (303), and a snap-on assembly (304); the spring bin (301) is opened at the top right side of the front side of the housing (1); the flexible spring (302) is installed inside the spring bin (301); the connecting block (303) is fixedly connected to the front end of the flexible spring (302); and the snap-on assembly (304) is installed inside the front end of the connecting block (303).

2. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 1, characterized in that: The diameter of the connecting block (303) is the same as the diameter of the spring chamber (301), and a fixing hole with the same diameter as that of the connecting block (303) is also provided on the side of the top cover (2).

3. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 2, characterized in that: The clamping assembly (304) comprises a sliding cavity (3041), a squeezing spring (3042), and a clamping rod (3043); the sliding cavity (3041) is opened through the front end of the connecting block (303); the squeezing spring (3042) is installed inside the sliding cavity (3041), and the middle part is fixedly connected to the sliding cavity (3041); the two clamping rods (3043) are respectively fixedly connected to the left and right ends of the squeezing spring (3042), and are slidably connected to the inner wall of the sliding cavity (3041).

4. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 1, characterized in that: An insulating block (401) is installed at the inner bottom of the housing (1), and a busbar (402) is plugged onto the insulating block (401).

5. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 4, characterized in that: The shell (1) and the top cover (2) are both made of steel plates, and their surfaces are sprayed with fire retardant paint. The busbars (402) are arranged in three rows, and there are gaps between adjacent busbars (402).

6. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 5, characterized in that: The connecting device comprises a connecting base plate (501), an ear plate (502), fixing bolts (503), a connecting box (504), a connecting busbar (505), and connecting bolts (506); the connecting base plate (501) is mounted on one end of the housing (1); the four ear plates (502) are respectively fixedly connected to the front and rear ends of the left and right sides of the connecting base plate (501); the four fixing bolts (503) are respectively threadedly connected to the ear plates (502); the connecting box (504) is plugged into the connecting base plate (501); the connecting busbar (505) is spaced apart inside the connecting box (504); and the four connecting bolts (506) are respectively mounted to the left and right ends of the outer surfaces of the front and rear sides of the connecting box (504).

7. The common box type bus duct with a connecting mechanism for a power supply and distribution system according to claim 6, characterized in that: A threaded hole is provided through the center of the ear plate (502), and a threaded hole is also provided on one side of the shell (1) correspondingly, and bolt holes are provided on the left and right ends of the front and rear outer surfaces of the connecting base plate (501) of the connecting box (504) and on the front and rear sides of the connecting base plate (501) respectively.

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