A safe connecting slide rail busbar

Abstract

The present invention belongs to the technical field of busbars, and in particular, relates to a safe connecting slide rail busbar, including a busbar assembly, a connecting assembly, and a plug-in box assembly. The busbar assembly is used to connect a power source, the connecting assembly is used to connect the busbar assembly and establish an electrical connection, and the plug-in box assembly is used to establish an electrical connection between the terminal device load and the busbar assembly. In the present invention, the plug-in box assembly plugged into the busbar assembly can ensure that the busbar assembly is powered on first and the circuit breaker in the plug-in box will be unlocked and in a state that can be pushed up and opened only after the busbar assembly is powered on, thereby ensuring that no arc will be generated due to the connection of a load during the process of connecting the busbar assembly to the busbar assembly in a normal working state, and ensuring that the components in the busbar assembly will not be burned during the connection process.

Description

Technical Field

[0001] The invention belongs to the technical field of busbars, and in particular relates to a safe connecting slide rail type busbar. Background Art

[0002] Track bus duct is mainly used for the terminal power supply system of the data center. As you can imagine, a track is equivalent to a bus duct, which can be plug-and-play, expand capacity anytime and anywhere, and is safe and reliable. It is the future development trend.

[0003] Compared with traditional bus duct, track type has the following advantages:

[0004] 1. It can completely replace the traditional power distribution system of cabinet + cable.

[0005] 2. Electricity demand can be increased or decreased online at any time.

[0006] 3. Single-phase and three-phase conversion can be realized at any time.

[0007] 4. Quick deployment, the system can be installed directly after delivery.

[0008] 5.Fully modular design, with multiple power ports to choose from.

[0009] 6. The system is low-cost and there are more options to choose from.

[0010] 7. All-point connection, maintenance-free, saving operation and maintenance costs.

[0011] 8. Electricity demand can be changed at any time, effectively protecting resources.

[0012] 9. Integrated circuit monitoring, supports multiple communication methods to meet management needs.

[0013] During use, it is often necessary to connect or remove the busbar connected to the plug-in box. Before connecting or removing the busbar, the plug-in box needs to be powered off, otherwise an arc will be generated and the busbar duct will be burned.

[0014] During use, it is often necessary to inspect the connection points of the busbars and clean the electrical contacts. At this time, the connected busbars need to be disassembled from the connection points. When there are a large number of plug-in boxes on the busbars, the plug-in boxes may be missed due to carelessness or failure to follow the operating specifications. The plug-in boxes that are missed but still powered on may generate arcs at the connection points when the busbars are disassembled or connected due to the loads connected to them, which poses a risk of burning components.

[0015] In addition, the closing operation of the plug-in box includes opening the door panel and closing the circuit breaker. If there are many plug-in boxes on the busbar, closing the plug-in box before connecting or removing the busbar is time-consuming and inefficient.

[0016] Furthermore, in order to ensure that the copper bars of the two busbars are reliably connected at the joint, more processes are often required to complete the connection of the two busbar copper bars.

[0017] The present invention is improved on the basis of patent application number 201611129237.5 to solve the above problems. Summary of the invention

[0018] Based on this, it is necessary to provide a safe connecting slide rail busbar in response to the problems existing in the current busbar. In the present invention, the plug-in box assembly plugged into the busbar assembly can ensure that the busbar assembly is powered on first and the circuit breaker in the plug-in box will be unlocked and in a state where it can be pushed up and opened only after the busbar assembly is powered on, thereby ensuring that no arc will be generated due to the connection of a load during the process of connecting the busbar assembly to the busbar assembly in a normal working state, and ensuring that the components in the busbar assembly will not be burned during the connection process. In the present invention, the plug-in box assembly plugged into the busbar assembly for normal operation will first power off the busbar assembly during the disassembly process of the busbar assembly, and then synchronously close and lock the circuit breakers in all the plug-in box assemblies on the busbar assembly to be removed, thereby ensuring that no arc will be generated due to the connection of the load during the disassembly process of the busbar assembly from the busbar assembly in the normal power-on working state, ensuring that the parts in the busbar assembly will not be burned during its disassembly process, and at the same time, improving the closing efficiency of all the plug-in box assemblies on the busbar assembly during the disassembly process of the busbar assembly. In the present invention, the first copper bar and the second copper bar of the two busbar assemblies are connected for simple plug-in connection, with simple procedures and convenient operation.

[0019] The above purpose is achieved through the following technical solutions:

[0020] A safe connecting slide rail busbar, used for powering the load of the terminal equipment in the data room, comprising:

[0021] A busbar assembly is used to connect a power supply, the busbar assembly includes a busbar trough, two pairs of first copper bars located on both sides of the bottom slot and a second copper bar located on the top of the busbar trough are arranged in the busbar trough, a first trigger rod that slides along its length direction in a first slide groove at one end of the busbar trough and cooperates with the end face of the adjacent busbar trough, the first trigger rod is provided with a first spring that drives it to move outward, the inner end of the first trigger rod has a trigger inclined surface that drives the first trigger slat in the busbar trough to move upward, and the first trigger slat is provided with a second trigger slat.

[0022] The connecting assembly is used to connect the busbar assembly and establish electrical connection.

[0023] A plug-in box assembly is used to establish an electrical connection between a terminal device load and a busbar assembly, the plug-in box assembly comprising a shell, a cylinder is provided on the top of the shell, four first electrical contacts corresponding to the first copper bar are connected to the cylinder through hanging ears, a first guide sleeve is provided at the top of the cylinder, a push rod is vertically slid in the first guide sleeve, a second electrical contact matching the second copper bar is provided at the top of the push rod, a third spring for driving the second electrical contact to move upward is provided on the push rod, a first sliding sleeve is vertically slid on the outer side of the first guide sleeve, a first driving rod matching the second trigger slat is provided at the upper end of the first sliding sleeve, a second trigger rod is vertically moved in the shell, and a transmission assembly that can change the movement amplitude of the second trigger rod is connected between the second trigger rod and the first sliding sleeve.

[0024] In one of the embodiments, the first copper bar is fixed in a first mounting seat, the first mounting seat is fixed on the side wall of the bus duct, the second copper bar is fixed in a second mounting seat, the second mounting seat is fixed on the top of the bus duct, the second trigger plate is provided with an inclined plate to prevent it from interfering with the first driving rod, and the first trigger plate even has a plurality of dovetail guide bars, and the dovetail guide bars slide in the dovetail groove on the inner wall of the bus duct.

[0025] In one of the embodiments, the first trigger rod is provided with a second limiting ring and a third limiting ring for limiting its movement range, the first spring is a compression spring, and the two ends of the first spring are respectively connected to the end surface of the bus duct and the first limiting ring on the first trigger rod.

[0026] In one embodiment, the connection assembly includes a square sleeve, in which five first guide seats corresponding to the first copper bar and the second copper bar in the bus duct are arranged, and second slide grooves at both ends of the first guide seats are respectively slidably provided with plug rods that cooperate with the first sockets on the end surface of the bus duct and are installed with second springs for resetting the plug rods, and a third copper bar that cooperates with the corresponding first copper bar or the second copper bar is arranged at the end of the plug rod, and the two third copper bars corresponding to the same first guide seat are electrically connected through a wire.

[0027] In one of the embodiments, a threaded hole is provided on the wall surface of the bus duct, a first bolt is provided in the threaded hole for pressing the third copper bar against the first copper bar or the second copper bar, a rubber pad insulated with the first copper bar or the second copper bar is provided at the end of the first bolt, and the first bolt cooperates with the first slot on the end face of the square sleeve.

[0028] In one of the embodiments, the connecting assembly includes a square sleeve, which is fixed to the two ends of the two bus ducts by a second bolt sleeve, and a first plug and a second plug that are plugged into each other are arranged in the square sleeve. The first plug and the second plug are electrically connected to the first copper bar and the second copper bar in the two bus ducts through wires, respectively, and the first plug and the second plug are respectively matched with the second jacks on the end faces of the two bus ducts.

[0029] In one embodiment, three third plugs are provided on the wall surface of the shell, and five circuit breakers are installed in the shell through a mounting frame. The five circuit breakers divide the wires introduced from the four first electrical contacts and the second electrical contacts into three and lead them to the three third plugs respectively. The switches of the five circuit breakers cooperate with the cross bar at the lower end of the first trigger rod. The side end opening of the shell is installed with a cover plate through a third bolt. The first electrical contact is installed on the corresponding hanging ear through a third mounting seat. The hanging ear is provided with a support rod that cooperates with the first mounting seat where the corresponding first copper busbar is located. The first driving rod is fixedly connected to the first sliding sleeve through a first connecting rod, and the two ends of the third spring are respectively connected to the second electrical contact and the fourth limiting ring on the first guide sleeve.

[0030] In one of the embodiments, the transmission assembly includes a second driving rod, the second driving rod slides in the cylinder and is fixedly connected to the first sliding sleeve, the lower end of the second driving rod is connected to the second connecting rod, the second connecting rod is connected to the second guide seat on the inner wall of the shell through a fourth spring, a sliding seat is provided on the second guide seat for vertical sliding, a fourth bolt that cooperates with the second guide seat is threadedly connected to the sliding seat, a first gear is provided on the sliding seat through a first round pin, the first gear is meshed with the first rack, the upper end of the first rack is connected to the third connecting rod, a fifth bolt is threadedly connected to the third connecting rod, the second groove at the upper end of the first rack of the fifth bolt cooperates with the third groove on the wall of the second groove, and the upper end of the third connecting rod is connected to the second connecting rod through a vertically telescopic telescopic assembly. Then, the telescopic assembly slides vertically in a second guide sleeve on the inner wall of the shell, the slide seat is connected with an arc-shaped third guide sleeve through a connecting frame, a circular arc-shaped second rack is slidably arranged in the third guide sleeve, one end of the second rack cooperates with the top plate at the upper end of the second trigger rod, the third guide sleeve is provided with a second gear meshing with the second rack through a second round pin, the second round pin is provided with a second pulley, the second pulley is transmission connected to the first pulley on the first round pin through a synchronous belt, the second trigger rod slides vertically in the fourth guide sleeve, the fourth guide sleeve is fixed in the shell through the first fixing rod, the second trigger rod is provided with a fifth limiting ring cooperating with the fourth guide sleeve, the second trigger rod is provided with a seventh spring, and the two ends of the seventh spring are respectively connected to the fourth guide sleeve and the top plate.

[0031] In one embodiment, the transmission assembly includes a second driving rod, the second driving rod slides in the cylinder and is fixedly connected to the first sliding sleeve, the lower end of the second driving rod is connected to the second connecting rod, the second connecting rod is connected to the third rack through a vertically telescopic telescopic assembly, the third rack slides in a fifth guide sleeve on the inner wall of the shell, the fifth guide sleeve is provided with a third gear meshing with the third rack, the third gear meshes with the fourth rack, the fourth rack vertically slides in a sixth guide sleeve on the inner wall of the shell, the second connecting rod is connected to the second gear on the sixth guide sleeve through a fourth spring The fixing rod is connected, the lower end of the fourth rack is hinged with a second sliding sleeve, the second sliding sleeve is slidably provided with a rocker arm, the rocker arm is hinged with a slider, the slider is threadedly connected with a sixth bolt, the sixth bolt cooperates with the oval hole on the third guide seat, the slider is slidably provided in the third guide seat, the third guide seat is fixed in the shell, the rocker arm is slidably provided with a third sliding sleeve, the third sliding sleeve and the second ring sleeve are distributed on both sides of the slider, the third sliding sleeve is hinged with the upper end of the second trigger rod, the second trigger rod vertically slides in the fourth guide sleeve, and the fourth guide sleeve is fixed in the shell.

[0032] In one embodiment, the telescopic assembly includes a rod sleeve, which is fixed to the upper end of the third connecting rod or the third rack, and an inner rod fixed to the second connecting rod slides vertically in the rod sleeve, and a sixth spring is arranged in the rod sleeve, and two ends of the sixth spring are respectively connected to the end face of the inner rod and the inner wall of the rod sleeve.

[0033] The beneficial effects of the present invention are:

[0034] 1. In the present invention, the plug-in box assembly plugged into the busbar assembly can ensure that the busbar assembly is powered on first and the circuit breaker in the plug-in box will be unlocked and in a push-up open state only after the busbar assembly is powered on, during the process of connecting the busbar assembly to the energized busbar assembly in a normal working state. This ensures that no arc is generated due to the connection of a load during the process of connecting the busbar assembly to the busbar assembly in a normal working state, and ensures that the components in the busbar assembly will not be burned during the connection process.

[0035] 2. In the present invention, the plug-in box assembly that is plugged into the busbar assembly for normal operation will first power off the busbar assembly during the disassembly process of the busbar assembly, and then synchronously close and lock the circuit breakers in all the plug-in box assemblies on the busbar assembly that needs to be removed, thereby ensuring that no arc will be generated due to the connection of a load during the disassembly of the busbar assembly from the busbar assembly in a normal energized working state, ensuring that the components in the busbar assembly will not be burned during its disassembly process, and at the same time, improving the closing efficiency of all the plug-in box assemblies on the busbar assembly during the disassembly of the busbar assembly.

[0036] 3. In the present invention, the first copper bar and the second copper bar of the two busbar assemblies are connected by simple plugging, which has a simple process and is easy to operate.

[0037] 4. The first sliding sleeve in the plug-in box assembly of the present invention is connected to the second trigger rod through its internal transmission assembly, and the movement amplitude of the second trigger rod can be adjusted to adapt to the unified control of circuit breakers of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is the present invention and its overall cross-sectional view.

[0039] Figure 2 It is a cross-sectional view of the cooperation between the two busbar assemblies in the present invention and the connecting assembly of the first scheme.

[0040] Figure 3 It is a cross-sectional view of the connection of two busbar assemblies in the present invention.

[0041] Figure 4 These are two cross-sectional views of the cooperation between the two busbar assemblies in the present invention and the second scheme connecting assembly.

[0042] Figure 5 It is a schematic diagram of the plug-in box assembly in the present invention.

[0043] Figure 6 These are two partial cross-sectional views of the junction box assembly of the present invention.

[0044] Figure 7 It is a cross-sectional view of the telescopic assembly of the plug-in box assembly in the present invention.

[0045] Figure 8 It is a cross-sectional view of the connection structure between the first rack and the third connecting rod of the plug-in box assembly of the present invention.

[0046] Fig. 9 This is a cross-sectional view of the cooperation between the transmission assembly and the circuit breaker of the first scheme of the plug-in box assembly in the present invention.

[0047] Fig.10 It is a partial cross-sectional view of the transmission assembly of the first scheme of the plug-in box assembly in the present invention.

[0048] Fig.11 It is a cross-sectional view of the cooperation between the transmission assembly and the circuit breaker of the second scheme of the plug-in box assembly in the present invention.

[0049] Fig.12 It is a partial cross-sectional view of the transmission assembly of the second scheme of the plug-in box assembly in the present invention.

[0050] Fig.13 It is a cross-sectional view of the swing arm fulcrum adjustment structure of the plug-in box assembly in the present invention.

[0051] Fig.14These are two schematic diagrams of the busbar assembly of the first scheme in the present invention.

[0052] Fig.15 These are two schematic diagrams of the bus duct of the bus assembly of the first scheme in the present invention.

[0053] Fig.16 These are two schematic diagrams of the busbar assembly of the second scheme in the present invention.

[0054] Fig.17 These are two schematic diagrams of the bus duct of the bus assembly of the second scheme in the present invention.

[0055] Fig.18 It is a cross-sectional view of the busbar assembly in the present invention.

[0056] Fig.19 It is a partial cross-sectional view of the busbar assembly in the present invention.

[0057] Fig. 20 It is a partial cross-sectional view of the busbar assembly of two schemes in the present invention.

[0058] Fig.21 It is a schematic diagram of the plug-in installation and disassembly status of the plug-in box assembly and the busbar assembly in the present invention.

[0059] Name of the label in the figure:

[0060] 100, busbar assembly; 101, busbar duct; 102, slot; 103, first jack; 104, first slide; 105, threaded hole; 106, second jack; 107, dovetail slot; 108, first mounting seat; 109, first copper bar; 110, second mounting seat; 111, second copper bar; 112, first triggering strip; 113, dovetail guide; 114, second triggering strip; 115, inclined strip; 116, first bolt; 117, rubber pad; 118, first triggering rod; 119, triggering inclined surface; 120, first limiting ring; 121, second limiting ring; 122, third limiting ring; 123, first spring;

[0061] 200, connecting assembly; 201, square sleeve; 202, first slot; 203, first guide seat; 204, second slide slot; 205, plug rod; 206, third copper bar; 207, second spring; 208, second bolt; 209, first plug; 210, second plug;

[0062] 300, plug-in box assembly; 301, housing; 302, cover plate; 303, third bolt; 304, third plug; 305, cylinder; 306, hanging ear; 307, third mounting seat; 308, first electrical contact; 309, support rod; 310, first guide sleeve; 311, fourth limiting ring; 312, ejector rod; 313, second electrical contact; 314, third spring; 315, first sliding sleeve; 316, first connecting rod; 317, first driving rod; 318, second driving rod; 319, second connecting rod; 320, fourth spring; 321, transmission assembly; 322, second guide seat; 323, slide seat; 324, fourth bolt; 325, first round pin; 326, first gear; 327, first rack; 328, second slot; 329, third slot; 330, fifth bolt; 337, third connecting rod; 338, Telescopic assembly; 339, rod sleeve; 340, second guide sleeve; 341, inner rod; 342, sixth spring; 343, first pulley; 344, synchronous belt; 345, second pulley; 346, second round pin; 347, second gear; 348, third guide sleeve; 349, connecting frame; 350, second rack; 351, second trigger rod; 352, cross bar; 353, fifth limit ring; 354, top plate; 355, The seventh spring; 356, the fourth guide sleeve; 357, the first fixed rod; 358, the circuit breaker; 359, the mounting frame; 360, the third rack; 361, the fifth guide sleeve; 362, the third gear; 363, the fourth rack; 364, the sixth guide sleeve; 365, the second sliding sleeve; 366, the rocker arm; 367, the slider; 368, the third guide seat; 369, the sixth bolt; 370, the third sliding sleeve; 371, the second fixed rod. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0064] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0065] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] like Figure 1-21 As shown, a safe connecting slide rail busbar is used for powering the load of the terminal equipment in the data room, comprising:

[0067] A busbar assembly 100 is used to connect a power supply. The busbar assembly 100 includes a busbar duct 101. Two pairs of first copper bars 109 located on both sides of a bottom slot 102 and a second copper bar 111 located on the top of the busbar duct 101 are arranged in the busbar duct 101. A first trigger rod 118 that cooperates with the end face of the adjacent busbar duct 101 slides in a first slide groove 104 at one end of the busbar duct 101 along its length direction. The first trigger rod 118 is provided with a first spring 123 that drives it to move outward. The inner end of the first trigger rod 118 has a trigger slope 119 that drives a first trigger slat 112 in the busbar duct 101 to move upward. The first trigger slat 112 is provided with a second trigger slat 114.

[0068] The connecting assembly 200 is used to connect the busbar assembly 100 and establish an electrical connection.

[0069] The plug-in box assembly 300 is used to establish an electrical connection between the terminal device load and the busbar assembly 100. The plug-in box assembly 300 includes a shell 301. A cylinder 305 is provided on the top of the shell 301. The cylinder 305 is connected to four first electrical contacts 308 corresponding to the first copper bar 109 through a hanging ear 306. A first guide sleeve 310 is provided on the top of the cylinder 305. A push rod 312 is vertically slidable in the first guide sleeve 310. The top of the push rod 312 is provided with a push rod 312 corresponding to the second copper bar 111. The second electric contact 313 is connected to the housing 301, and a third spring 314 is provided on the top rod 312 for driving the second electric contact 313 to move upward. A first sliding sleeve 315 is vertically slid on the outer side of the first guide sleeve 310, and a first driving rod 317 cooperating with the second trigger strip 114 is provided on the upper end of the first sliding sleeve 315. A second trigger rod 351 is vertically moved in the housing 301, and a transmission component 321 that can change the movement amplitude of the second trigger rod 351 is connected between the second trigger rod 351 and the first sliding sleeve 315.

[0070] In a further embodiment, Fig.18 , 19 As shown, the first copper bar 109 is fixed in the first mounting seat 108, the first mounting seat 108 is fixed on the side wall of the bus duct 101, the second copper bar 111 is fixed in the second mounting seat 110, the second mounting seat 110 is fixed on the top of the bus duct 101, the second trigger plate 114 is provided with an inclined plate 115 to avoid interference with the first driving rod 317, and the first trigger plate 112 even has a plurality of dovetail guide bars 113, and the dovetail guide bars 113 slide in the dovetail groove 107 on the inner wall of the bus duct 101.

[0071] In a further embodiment, Fig. 20 As shown, the first trigger rod 118 is provided with a second limiting ring 121 and a third limiting ring 122 for limiting its movement range, the first spring 123 is a compression spring, and the two ends of the first spring 123 are respectively connected to the end surface of the bus duct 101 and the first limiting ring 120 on the first trigger rod 118.

[0072] In a further embodiment, Figure 4As shown, the connecting assembly 200 includes a square sleeve 201, in which five first guide seats 203 corresponding to the first copper bars 109 and the second copper bars 111 in the bus duct 101 are arranged, and second slide grooves 204 at both ends of the first guide seat 203 are respectively slidably provided with plug rods 205 that cooperate with the first sockets 103 on the end surface of the bus duct 101, and a second spring 207 for resetting the plug rod 205 is installed, and a third copper bar 206 that cooperates with the corresponding first copper bar 109 or the second copper bar 111 is arranged at the end of the plug rod 205, and the two third copper bars 206 corresponding to the same first guide seat 203 are electrically connected through a wire.

[0073] In a further embodiment, Figure 4 As shown, a threaded hole 105 is provided on the wall surface of the bus duct 101, and a first bolt 116 is provided in the threaded hole 105 to press the third copper bar 206 onto the first copper bar 109 or the second copper bar 111, and a rubber pad 117 insulated and matched with the first copper bar 109 or the second copper bar 111 is provided at the end of the first bolt 116, and the first bolt 116 cooperates with the first slot 202 on the end face of the square sleeve 201.

[0074] In a further embodiment, Figure 2 , 3 As shown, the connecting assembly 200 includes a square sleeve 201, which is fixed to the two ends of the two bus ducts 101 by a second bolt 208, and a first plug 209 and a second plug 210 that are plugged into each other are arranged in the square sleeve 201. The first plug 209 and the second plug 210 are electrically connected to the first copper bar 109 and the second copper bar 111 in the two bus ducts 101 through wires, respectively, and the first plug 209 and the second plug 210 are respectively matched with the second jacks 106 on the end faces of the two bus ducts 101.

[0075] In a further embodiment, Figure 5 , 6, 9, 11, 12, and 21, three third plugs 304 are arranged on the wall of the housing 301, and five circuit breakers 358 are installed in the housing 301 through a mounting frame 359. The five circuit breakers 358 divide the wires introduced from the four first electrical contacts 308 and the second electrical contacts 313 into three and lead them to the three third plugs 304 respectively. The switches of the five circuit breakers 358 cooperate with the cross bar 352 at the lower end of the first trigger rod 118, and the side end opening of the housing 301 The cover plate 302 is installed by the third bolt 303, the first electrical contact 308 is installed on the corresponding hanging ear 306 through the third mounting seat 307, the hanging ear 306 is provided with a support rod 309 that cooperates with the first mounting seat 108 where the corresponding first copper busbar 109 is located, the first driving rod 317 is fixedly connected to the first sliding sleeve 315 through the first connecting rod 316, and the two ends of the third spring 314 are respectively connected to the second electrical contact 313 and the fourth limiting ring 311 on the first guide sleeve 310.

[0076] In a further embodiment, Figure 6-10As shown, the transmission assembly 321 includes a second driving rod 318, the second driving rod 318 slides in the cylinder 305 and is fixedly connected to the first sliding sleeve 315, the lower end of the second driving rod 318 is connected to a second connecting rod 319, the second connecting rod 319 is connected to a second guide seat 322 on the inner wall of the housing 301 through a fourth spring 320, a slide seat 323 is vertically slidably provided on the second guide seat 322, a fourth bolt 324 that cooperates with the second guide seat 322 is threadedly connected to the slide seat 323, and the slide seat 323 is threadedly connected to the fourth bolt 324 that cooperates with the second guide seat 322. A first gear 326 is provided on the first rack 327 through a first round pin 325, and the first gear 326 is meshed with a first rack 327. The upper end of the first rack 327 is connected to a third connecting rod 337, and a fifth bolt 330 is threadedly connected to the third connecting rod 337. The fifth bolt 330 cooperates with a second groove 328 at the upper end of the first rack 327 and a third groove 329 on the wall of the second groove 328. The upper end of the third connecting rod 337 is connected to the second connecting rod 319 through a vertically telescopic telescopic assembly 338. The retracting assembly 338 slides vertically in the second guide sleeve 340 on the inner wall of the housing 301. The slide seat 323 is connected to a circular arc third guide sleeve 348 through a connecting frame 349. A circular arc second rack 350 is slidably arranged in the third guide sleeve 348. One end of the second rack 350 cooperates with the top plate 354 at the upper end of the second trigger rod 351. The third guide sleeve 348 is provided with a second gear 347 meshing with the second rack 350 through a second round pin 346. The second round pin 346 is provided with a second pulley 345. The second pulley 345 is connected to the first pulley 343 on the first round pin 325 through a synchronous belt 344, the second trigger rod 351 vertically slides in the fourth guide sleeve 356, and the fourth guide sleeve 356 is fixed in the shell 301 through a first fixing rod 357. The second trigger rod 351 is provided with a fifth limiting ring 353 that cooperates with the fourth guide sleeve 356, and the second trigger rod 351 is provided with a seventh spring 355, and the two ends of the seventh spring 355 are respectively connected to the fourth guide sleeve 356 and the top plate 354.

[0077] In a further embodiment, Figure 11-13As shown, the transmission assembly 321 includes a second driving rod 318, which slides in the cylinder 305 and is fixedly connected to the first sliding sleeve 315. The lower end of the second driving rod 318 is connected to the second connecting rod 319, and the second connecting rod 319 is connected to the third rack 360 through a vertically telescopic telescopic assembly 338. The third rack 360 slides in a fifth guide sleeve 361 on the inner wall of the shell 301. The fifth guide sleeve 361 is provided with a third gear 362 that meshes with the third rack 360. The third gear 362 meshes with the fourth rack 363. The fourth rack 363 vertically slides in a sixth guide sleeve 364 on the inner wall of the shell 301. The second connecting rod 319 is connected to the second fixing rod 37 on the sixth guide sleeve 364 through a fourth spring 320. 1, the lower end of the fourth rack 363 is hinged with a second sliding sleeve 365, a swing rod 366 is slidably arranged in the second sliding sleeve 365, a slider 367 is hinged on the swing rod 366, a sixth bolt 369 is threadedly connected to the slider 367, the sixth bolt 369 cooperates with the oval hole on the third guide seat 368, the slider 367 is slidably arranged in the third guide seat 368, the third guide seat 368 is fixed in the housing 301, a third sliding sleeve 370 is slidably arranged on the swing rod 366, the third sliding sleeve 370 and the second ring sleeve are distributed on both sides of the slider 367, the third sliding sleeve 370 is hinged to the upper end of the second trigger rod 351, the second trigger rod 351 vertically slides in the fourth guide sleeve 356, and the fourth guide sleeve 356 is fixed in the housing 301.

[0078] In a further embodiment, Figure 6 , 7 As shown in Figure 11, the telescopic assembly 338 includes a rod sleeve 339, which is fixed to the upper end of the third connecting rod 337 or the third rack 360. An inner rod 341 fixedly connected to the second connecting rod 319 slides vertically in the rod sleeve 339, and a sixth spring 342 is arranged in the rod sleeve 339. Both ends of the sixth spring 342 are respectively connected to the end face of the inner rod 341 and the inner wall of the rod sleeve 339.

[0079] In the present invention, the plug-in box assembly 300 plugged into the busbar assembly 100 can ensure that the busbar assembly 100 is powered on first and the circuit breaker 358 in the plug-in box will be unlocked and in a push-up open state only after the busbar assembly 100 is powered on, during the process of connecting the busbar assembly 100 in which it is located to the energized busbar assembly 100 in normal working condition. This ensures that no arc will be generated due to the connection of a load during the process of connecting the busbar assembly 100 to the busbar assembly 100 in normal working condition, and ensures that the components in the busbar assembly 100 will not be burned during the connection process. In the present invention, the plug-in box assembly 300 plugged into the busbar assembly 100 for normal operation will first power off the busbar assembly 100 during the disassembly process of the busbar assembly 100, and then synchronously close and lock the circuit breakers 358 in all the plug-in box assemblies 300 on the busbar assembly 100 to be removed, thereby ensuring that the busbar assembly 100 will not generate arcs due to the connection of loads during the disassembly process of the busbar assembly 100 from the busbar assembly 100 in the normal power-on working state, ensuring that the parts in the busbar assembly 100 will not be burned during its disassembly process, and at the same time, improving the closing efficiency of all the plug-in box assemblies 300 on the busbar assembly 100 during the disassembly process of the busbar assembly 100. In the present invention, the first copper bar 109 and the second copper bar 111 of the two busbar assemblies 100 are connected for simple plug-in connection, with simple procedures and convenient operation.

[0080] The first plug 209, the second plug 210 and the third plug 304 in the present invention are all industrial quick plugs.

[0081] Other structures in the housing 301 of the present invention are arranged as required, and the arrangement method adopts the existing technology.

[0082] The process of connecting the busbar assembly 100 to the power supply through the first solution connecting assembly 200 is as follows:

[0083] As Fig.21 As shown in Figures 21(d), 21(c), 21(a), and 21(b), the first scheme of the plug-in box assembly 300 is first installed on the busbar assembly 100. In the initial state, the first sliding sleeve 315 in the busbar assembly 100 is abutted against the top of the cylinder 305 under the action of the corresponding fourth spring 320, the fourth spring 320 is in a stretched state, the cross bar 352 at the lower end of the second trigger rod 351 is in its lowest position and the switches of all circuit breakers 358 are in a locked closed state, the seventh spring 355 is in a compressed state, the sixth spring 342 in the telescopic assembly 338 is in a compressed state, and the second rack 350 is abutted against the top plate 354.

[0084] First, the four ears 306 on the plug-in box assembly 300 are parallel to the length direction of the slot 102, and then the cylinder 305 of the plug-in box assembly 300 is inserted upward into the bus duct 101 through the slot 102 at the bottom of the bus duct 101 of the bus assembly 100 to a certain extent, so that the second electrical contact 313 is against the first copper bar 109 and further compresses the third spring 314, and the top rod 312 is retracted to a certain extent into the first guide sleeve 310, so that the lower ends of the four first electrical contacts 308 are higher than the top ends of the corresponding first copper bars 109, and the first driving rod 317 is higher than the second trigger strip 114. Then, rotate the housing 301 90 degrees so that the four first electrical contacts 308 are respectively located directly above the corresponding first copper bars 109. Next, pull the plug-in box assembly 300 downward so that the four first electrical contacts 308 are fully inserted into the corresponding first copper bars 109 at the same time. The support rod 309 on the hanging ear 306 abuts against the corresponding first mounting seat 108 and forms an effective support for the plug-in box assembly 300. The first driving rod 317 just contacts the second trigger plate 114. The cross bar 352 at the lower end of the second trigger rod 351 is in a locked closed state for the switches of all circuit breakers 358. The second electrical contact 313 abuts against the second copper bar 111 for electrical contact, and the third spring 314 is in a compressed state.

[0085] The plug-in box assembly 300 of the second solution is installed on the busbar assembly 100. In the initial state, the first sliding sleeve 315 in the busbar assembly 100 is against the top of the cylinder 305 under the action of the corresponding fourth spring 320, the fourth spring 320 is in a stretched state, the cross bar 352 at the lower end of the second trigger rod 351 is in its lowest position and the switches of all circuit breakers 358 are locked and closed, and the sixth spring 342 in the telescopic assembly 338 is in a compressed state.

[0086] First, the four ears 306 on the plug-in box assembly 300 are parallel to the length direction of the slot 102, and then the cylinder 305 of the plug-in box assembly 300 is inserted upward into the bus duct 101 through the slot 102 at the bottom of the bus duct 101 of the bus assembly 100 to a certain extent, so that the second electrical contact 313 is against the first copper bar 109 and further compresses the third spring 314, and the top rod 312 is retracted to a certain extent into the first guide sleeve 310, so that the lower ends of the four first electrical contacts 308 are higher than the top ends of the corresponding first copper bars 109, and the first driving rod 317 is higher than the second trigger strip 114. Then, rotate the housing 301 90 degrees so that the four first electrical contacts 308 are respectively located directly above the corresponding first copper bars 109. Next, pull the plug-in box assembly 300 downward so that the four first electrical contacts 308 are fully inserted into the corresponding first copper bars 109 at the same time. The support rod 309 on the hanging ear 306 abuts against the corresponding first mounting seat 108 and forms an effective support for the plug-in box assembly 300. The first driving rod 317 just contacts the second trigger plate 114. The cross bar 352 at the lower end of the second trigger rod 351 is in a locked closed state for the switches of all circuit breakers 358. The second electrical contact 313 abuts against the second copper bar 111 for electrical contact, and the third spring 314 is in a compressed state.

[0087] Next, the square sleeve 201 of the connecting assembly 200 is mounted on one end of the bus duct 101 of the bus assembly 100, and the first plug 209 at one end of the bus assembly 100 is pulled out from the corresponding second jack 106 and plugged into the second plug 210 at the power supply end. First, the four first copper bars 109 and the one second copper bar 111 in the bus assembly 100 are energized. Then, the bus assembly 100 is pushed toward the power supply end, so that the first trigger rod 118 at the end of the bus assembly 100 moves into the bus duct 101 under the action of the power supply end and further compresses the first spring 123. The trigger slope 119 of the first trigger rod 118 drives the corresponding first trigger strip 112 to move upward by a certain amplitude, and the first trigger strip 112 passes through the second trigger strip 114 and the first driving rod 317. , the first sliding sleeve 315, the second driving rod 318, the second connecting rod 319, the telescopic assembly 338, the third connecting rod 337, the first rack 327, the first gear 326, the first round pin 325, the first pulley 343, the synchronous belt 344, the second pulley 345, the second round pin 346, the second gear 347, and the second rack 350 move in the direction of releasing the pressure on the second trigger rod 351. The second trigger rod 351 drives the cross bar 352 to move upward by a certain amplitude under the action of the seventh spring 355 and completely disengages from the switches of all the circuit breakers 358, so that all the circuit breakers 358 are in an unlocked and openable state. The fourth spring 320 is further stretched, and the square sleeve 201 is fixed to the bus duct 101 and the power supply end of the bus assembly 100 by the second bolt 208.

[0088] The process of connecting the busbar assembly 100 to the power supply through the second solution connecting assembly 200 is as follows:

[0089] First, the plug-in box assembly 300 of the first solution is installed on the busbar assembly 100. In the initial state, the first sliding sleeve 315 in the busbar assembly 100 is against the top of the cylinder 305 under the action of the corresponding fourth spring 320, the fourth spring 320 is in a stretched state, the cross bar 352 at the lower end of the second trigger rod 351 is in its lowest position and the switches of all circuit breakers 358 are locked and closed, and the sixth spring 342 in the telescopic assembly 338 is in a compressed state.

[0090] First, the four ears 306 on the plug-in box assembly 300 are parallel to the length direction of the slot 102, and then the cylinder 305 of the plug-in box assembly 300 is inserted upward into the bus duct 101 through the slot 102 at the bottom of the bus duct 101 of the bus assembly 100 to a certain extent, so that the second electrical contact 313 is against the first copper bar 109 and further compresses the third spring 314, and the top rod 312 is retracted to a certain extent into the first guide sleeve 310, so that the lower ends of the four first electrical contacts 308 are higher than the top ends of the corresponding first copper bars 109, and the first driving rod 317 is higher than the second trigger strip 114. Then, rotate the housing 301 90 degrees so that the four first electrical contacts 308 are respectively located directly above the corresponding first copper bars 109. Next, pull the plug-in box assembly 300 downward so that the four first electrical contacts 308 are fully inserted into the corresponding first copper bars 109 at the same time. The support rod 309 on the hanging ear 306 abuts against the corresponding first mounting seat 108 and forms an effective support for the plug-in box assembly 300. The first driving rod 317 just contacts the second trigger plate 114. The cross bar 352 at the lower end of the second trigger rod 351 is in a locked closed state for the switches of all circuit breakers 358. The second electrical contact 313 abuts against the second copper bar 111 for electrical contact, and the third spring 314 is in a compressed state.

[0091] The plug-in box assembly 300 of the second solution is installed on the busbar assembly 100. In the initial state, the first sliding sleeve 315 in the busbar assembly 100 is against the top of the cylinder 305 under the action of the corresponding fourth spring 320, the fourth spring 320 is in a stretched state, the cross bar 352 at the lower end of the second trigger rod 351 is in its lowest position and the switches of all circuit breakers 358 are locked and closed, and the sixth spring 342 in the telescopic assembly 338 is in a compressed state.

[0092] First, the four ears 306 on the plug-in box assembly 300 are parallel to the length direction of the slot 102, and then the cylinder 305 of the plug-in box assembly 300 is inserted upward into the bus duct 101 through the slot 102 at the bottom of the bus duct 101 of the bus assembly 100 to a certain extent, so that the second electrical contact 313 is against the first copper bar 109 and further compresses the third spring 314, and the top rod 312 is retracted to a certain extent into the first guide sleeve 310, so that the lower ends of the four first electrical contacts 308 are higher than the top ends of the corresponding first copper bars 109, and the first driving rod 317 is higher than the second trigger strip 114. Then, rotate the housing 301 90 degrees so that the four first electrical contacts 308 are respectively located directly above the corresponding first copper bars 109. Next, pull the plug-in box assembly 300 downward so that the four first electrical contacts 308 are fully inserted into the corresponding first copper bars 109 at the same time. The support rod 309 on the hanging ear 306 abuts against the corresponding first mounting seat 108 and forms an effective support for the plug-in box assembly 300. The first driving rod 317 just contacts the second trigger plate 114. The cross bar 352 at the lower end of the second trigger rod 351 is in a locked closed state for the switches of all circuit breakers 358. The second electrical contact 313 abuts against the second copper bar 111 for electrical contact, and the third spring 314 is in a compressed state.

[0093] Next, the square sleeve 201 of the connecting assembly 200 is sleeved on one end of the bus duct 101 of the busbar assembly 100, so that the first bolt 116 on the bus duct 101 enters the first slot 202 on the square sleeve 201, and the two plug rods 205 at both ends of the five first guide seats 203 in the square sleeve 201 drive the corresponding third copper bars 206 to be inserted into the end surface of the bus duct 101 and the first plug hole 103 of the power supply end respectively, and the four first copper bars 109 and one second copper bar 111 in the busbar assembly 100 are first energized with the power supply end through the corresponding third copper bars 206 and the plug rod 205 at the same time, and then, as the busbar assembly 100 continues to be pushed toward the power supply end, the first trigger rod 118 at the end of the busbar assembly 100 meets the power supply end and moves into the bus duct 101 under the action of the power supply end and further compresses the first spring 123, and the trigger slope 119 of the first trigger rod 118 drives the corresponding first trigger strip 112 to move upward The first trigger strip 112 drives the swing rod 366 to swing a certain amplitude around the intersection point with the slider 367 through the second trigger strip 114, the first drive rod 317, the first sleeve 315, the second drive rod 318, the second connecting rod 319, the telescopic assembly 338, the third rack 360, the third gear 362, the fourth rack 363, and the second sleeve 365. The swing rod 366 drives the second trigger rod 351 to move upward through the third sleeve 370 and completely disengage from the switches of all the circuit breakers 358, so that all the circuit breakers 358 are in an unlocked and openable state. The square sleeve 201 is fixed to the bus duct 101 and the power supply end of the bus assembly 100 by tightening the first bolt 116. At the same time, the first bolt 116 squeezes the corresponding rubber pad 117 onto the corresponding third copper bar 206 and makes the third copper bar 206 form a good electrical contact with the corresponding first copper bar 109 or the second copper bar 111.

[0094] The connection process between the busbar assemblies 100 through the first solution connection assembly 200 or the second solution connection assembly 200 is the same as above, except that the power supply end is changed to the busbar assembly 100 in the power-on state.

[0095] After the busbar assembly 100 is connected, the switch in the circuit breaker 358 is pushed upward and opened to complete the power supply of the equipment load.

[0096] If it is necessary to disassemble the busbar assembly 100 and the plug-in box assembly 300, install them in sequence as follows: Fig.21 Just follow the steps shown in 21(b), 21(a), 21(c), and 21(d).

[0097] During the installation and connection process, the busbar assembly 100 is powered on first and then the equipment load is powered on. During the disassembly process, the equipment load is powered off first and then the busbar assembly 100 is powered off, so as to avoid arcing due to the electrical connection of the busbar assembly 100 when it is powered on or off.

Claims

1. A safe connecting rail busbar, used for powering the terminal equipment load in a data room, characterized in that: include: A busbar assembly, used for connecting a power source; the busbar assembly comprises a busbar trough, wherein the busbar trough is provided with two pairs of first copper bars located at both sides of the bottom slot thereof and a second copper bar located at the top thereof; a first triggering rod cooperating with an adjacent busbar end face is slidably arranged in a first slide slot at one end of the busbar trough along its length direction; a first spring driving the first triggering rod to move outward is arranged on the first triggering rod; an inner end of the first triggering rod has a triggering inclined surface driving a first triggering slat in the busbar trough to move upward; a second triggering slat is arranged on the first triggering slat; A connecting assembly, used to connect the busbar assembly and establish an electrical connection; A plug-in box assembly is used to establish an electrical connection between a terminal device load and a busbar assembly; the plug-in box assembly includes a shell, a cylinder is provided on the top of the shell, and four first electrical contacts corresponding to the first copper bar are connected to the cylinder through hanging ears; a first guide sleeve is provided at the top of the cylinder, a push rod is vertically slid in the first guide sleeve, a second electrical contact matching the second copper bar is provided at the top of the push rod, a third spring for driving the second electrical contact to move upward is provided on the push rod, a first sliding sleeve is vertically slid on the outer side of the first guide sleeve, a first driving rod matching the second trigger slat is provided at the upper end of the first sliding sleeve, a second trigger rod is vertically moved in the shell, and a transmission assembly that can change the movement amplitude of the second trigger rod is connected between the second trigger rod and the first sliding sleeve.

2. A safe connection slide rail busbar according to claim 1, characterized in that: The first copper bar is fixed in the first mounting seat, the first mounting seat is fixed on the side wall of the bus duct, the second copper bar is fixed in the second mounting seat, the second mounting seat is fixed on the top of the bus duct, the second trigger plate is provided with an inclined plate to avoid interference with the first driving rod, and the first trigger plate even has a plurality of dovetail guide bars, and the dovetail guide bars slide in the dovetail groove on the inner wall of the bus duct.

3. The safe connection slide rail busbar according to claim 1, characterized in that: The first trigger rod is provided with a second limiting ring and a third limiting ring for limiting its movement range. The first spring is a compression spring. Both ends of the first spring are respectively connected to the end surface of the bus duct and the first limiting ring on the first trigger rod.

4. The safe connection slide rail busbar according to claim 1, characterized in that: The connecting assembly includes a square sleeve, in which five first guide seats corresponding to the first copper bar and the second copper bar in the bus duct are arranged, and second slide grooves at both ends of the first guide seats are respectively slidably provided with plug rods that cooperate with the first sockets on the end surface of the bus duct and are installed with second springs for resetting the plug rods, and a third copper bar that cooperates with the corresponding first copper bar or the second copper bar is arranged at the end of the plug rod, and the two third copper bars corresponding to the same first guide seat are electrically connected through a wire.

5. The safe connection slide rail busbar according to claim 4, characterized in that: A threaded hole is provided on the wall surface of the bus duct, and a first bolt is provided in the threaded hole to press the third copper bar against the first copper bar or the second copper bar. A rubber pad that is insulated and matched with the first copper bar or the second copper bar is provided at the end of the first bolt, and the first bolt cooperates with the first slot on the end surface of the square sleeve.

6. The safe connection slide rail busbar according to claim 1, characterized in that: The connecting assembly includes a square sleeve, which is fixed to the two ends of the two bus ducts by a second bolt sleeve. A first plug and a second plug that are plugged into each other are arranged in the square sleeve. The first plug and the second plug are electrically connected to the first copper bar and the second copper bar in the two bus ducts through wires respectively, and the first plug and the second plug are respectively matched with the second jacks on the end faces of the two bus ducts.

7. The safe connection slide rail busbar according to claim 1, characterized in that: Three third plugs are arranged on the wall surface of the shell, and five circuit breakers are installed in the shell through the mounting frame. The five circuit breakers divide the wires introduced from the four first electrical contacts and the second electrical contacts into three and lead them to the three third plugs respectively. The switches of the five circuit breakers cooperate with the cross bar at the lower end of the first trigger rod. The side end opening of the shell is installed with a cover plate through a third bolt. The first electrical contact is installed on the corresponding hanging ear through a third mounting seat. The hanging ear is provided with a support rod that cooperates with the first mounting seat where the corresponding first copper busbar is located. The first driving rod is fixedly connected to the first sliding sleeve through the first connecting rod, and the two ends of the third spring are respectively connected to the second electrical contact and the fourth limiting ring on the first guide sleeve.

8. The safe connection slide rail busbar according to claim 1, characterized in that: The transmission assembly includes a second driving rod, the second driving rod slides in the cylinder and is fixedly connected to the first sliding sleeve, the lower end of the second driving rod is connected to the second connecting rod, the second connecting rod is connected to the second guide seat on the inner wall of the shell through a fourth spring, a sliding seat is provided on the second guide seat for vertical sliding, a fourth bolt threadedly connected to the sliding seat and cooperating with the second guide seat, a first gear is provided on the sliding seat through a first round pin, the first gear is meshed with the first rack, the upper end of the first rack is connected to the third connecting rod, the third connecting rod is threadedly connected to the fifth bolt, the second groove at the upper end of the first rack of the fifth bolt cooperates with the third groove on the wall of the second groove, the upper end of the third connecting rod is connected to the second connecting rod through a vertically telescopic telescopic assembly, and the telescopic The retracting assembly slides vertically in a second guide sleeve on the inner wall of the shell, the slide seat is connected with an arc-shaped third guide sleeve through a connecting frame, a circular arc-shaped second rack is slidably arranged in the third guide sleeve, one end of the second rack cooperates with the top plate at the upper end of the second trigger rod, the third guide sleeve is provided with a second gear meshing with the second rack through a second round pin, the second round pin is provided with a second pulley, the second pulley is transmission connected to the first pulley on the first round pin through a synchronous belt, the second trigger rod slides vertically in the fourth guide sleeve, the fourth guide sleeve is fixed in the shell through the first fixing rod, the second trigger rod is provided with a fifth limiting ring cooperating with the fourth guide sleeve, the second trigger rod is provided with a seventh spring, and the two ends of the seventh spring are respectively connected to the fourth guide sleeve and the top plate.

9. The safe connection slide rail busbar according to claim 1, characterized in that: The transmission assembly includes a second driving rod, the second driving rod slides in the cylinder and is fixedly connected to the first sliding sleeve, the lower end of the second driving rod is connected to the second connecting rod, the second connecting rod is connected to the third rack through a vertically telescopic telescopic assembly, the third rack slides in a fifth guide sleeve on the inner wall of the shell, the fifth guide sleeve is provided with a third gear meshing with the third rack, the third gear meshes with the fourth rack, the fourth rack vertically slides in a sixth guide sleeve on the inner wall of the shell, and the second connecting rod is connected to the second fixing rod on the sixth guide sleeve through a fourth spring The lower end of the fourth rack is hinged with a second sliding sleeve, a rocker arm is slidably arranged in the second sliding sleeve, a slider is hinged on the rocker arm, a sixth bolt is threadedly connected to the slider, the sixth bolt cooperates with the oval hole on the third guide seat, the slider is slidably arranged in the third guide seat, the third guide seat is fixed in the shell, a third sliding sleeve is slidably arranged on the rocker arm, the third sliding sleeve and the second ring sleeve are distributed on both sides of the slider, the third sliding sleeve is hinged to the upper end of the second trigger rod, the second trigger rod vertically slides in the fourth guide sleeve, and the fourth guide sleeve is fixed in the shell.

10. A safe connection slide rail busbar according to claim 8 or 9, characterized in that: The telescopic assembly includes a rod sleeve, which is fixed to the upper end of the third connecting rod or the third rack. An inner rod fixed to the second connecting rod slides vertically in the rod sleeve. A sixth spring is arranged in the rod sleeve, and two ends of the sixth spring are respectively connected to the end surface of the inner rod and the inner wall of the rod sleeve.

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