Device for testing fireproof performance of bus duct

Abstract

The invention, which relates to the technical field of the bus duct fireproof test equipment, discloses a bus duct fireproof performance test apparatus comprising a substrate, and a first cabinet and a second cabinet arranged on the substrate. The transmission frame body is arranged in the second case, the transmission frame body comprises a spline sleeve which penetrates through the bottom of the second case and is rotationally mounted with the second case, and a spline shaft is arranged in the spline sleeve; the assembling platform is annularly arranged at the tops of the spline shaft and the spline housing; the driving assembly is arranged on the base plate; and the spraying assembly is arranged in the first case. Through the transmission frame body, the heating uniformity of the bus duct can be ensured in a manner of shifting the bus duct at multiple angles and multiple positions, and the combustion scene of the fire surface of the bus duct can be truly reflected by changing the spraying direction and position due to the structural characteristics of the spraying assembly, so that the test authenticity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of busbar trunking fire protection test equipment, and particularly to a busbar trunking fire protection performance test device. Background Technique

[0002] The fire protection performance test of busbar trunking is a key link to evaluate whether it can maintain power transmission function and prevent the spread of fire under fire conditions, mainly involving indicators such as fire resistance limit, heat insulation, and structural integrity. However, the existing busbar trunking fire protection performance test devices have some disadvantages in actual use;

[0003] Firstly, the traditional flame spraying direction is single, and the heat distribution is uneven, making it difficult to truly reflect the combustion scenario of the fire-exposed surface of the busbar trunking;

[0004] Secondly, the busbar trunking is mostly fixedly assembled, and the heat uniformity is easily affected;

[0005] To solve the above problems, a busbar trunking fire protection performance test device is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a busbar trunking fire protection performance test device. Through the set transmission frame body, this device can offset the busbar trunking at multiple angles and positions to ensure the heat uniformity of the busbar trunking. And the structural characteristics of the spraying component can change the spraying direction and position to truly reflect the combustion scenario of the fire-exposed surface of the busbar trunking, improving the authenticity of the test.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A busbar trunking fire protection performance test device, comprising: a base plate, a first chassis and a second chassis provided on the base plate, wherein the second chassis is arranged in the middle of the first chassis and is communicated with the first chassis; and a transmission frame body arranged inside the second chassis, the transmission frame body includes a spline sleeve penetrating through the bottom of the second chassis and rotatably installed with the second chassis, and a spline shaft is arranged inside the spline sleeve; an assembly platform annularly arranged at the top of the spline shaft and the spline sleeve for installing a plurality of busbar trunks; and a driving component arranged on the base plate, and when the driving component drives the spline shaft to longitudinally move inside the spline sleeve, a plurality of assembly platforms are individually longitudinally deflected, and when the driving component drives the spline sleeve and the spline shaft to rotate as a whole, a plurality of assembly platforms rotate horizontally as a whole; it also includes a spraying component arranged inside the first chassis for the fire protection test of the busbar trunking.

[0008] Preferably, an installation disk is fixed to the top end of the spline shaft; each of the assembly platforms includes a first support rod fixed to the upper part of the spline sleeve, a special-shaped plate rotatably installed at one end of the first support rod away from the spline sleeve, a groove formed at one end of the special-shaped plate away from the first support rod, a rotatable first pin shaft and second pin shaft arranged in the groove; and a clamping platform connected to the first pin shaft and the second pin shaft for assembling and fixing a busbar trunking. The assembly platform further includes a second support rod fixed to the installation disk corresponding to the first support rod, and a spherical hinge rod hinged between the second support rod and one side of the special-shaped plate. When the spline shaft longitudinally moves inside the spline sleeve, the spherical hinge rod drives the special-shaped plate to longitudinally deflect with the first support rod as the axis.

[0009] Preferably, the clamping platform includes an assembly block, a first through hole and a second through hole respectively inserted with the first pin shaft and the second pin shaft formed in the assembly block, and a support fixed to the assembly block. Installation plates are respectively fixed to both sides of the support, and screw holes are formed in the installation plates; and bolts symmetrically threadedly connected inside the two screw holes.

[0010] Preferably, a pin structure is further arranged on the special-shaped plate for the insertion and detachment of the second pin shaft and the assembly block; the pin structure includes a support plate fixed to the upper surface of the special-shaped plate, a telescopic rod horizontally penetrating through the top of the support plate, and a handle and a connecting rod respectively fixed to both ends of the telescopic rod. A spring is externally connected between the handle and the support plate on the outer side of the telescopic rod, and one end of the connecting rod away from the support plate is fixed to the second pin shaft.

[0011] Preferably, a transmission ring is fixed to the bottom end of the spline shaft, and a limiting groove is formed in the outer circumference of the transmission ring; and a first support shaft is arranged at the lower part of the outer wall of the first chassis close to the second chassis, and a transmission member composed of a straight section and a U-shaped section is rotatably installed on the first support shaft. Limiting columns respectively arranged at opposite ends of the U-shaped section of the transmission member can slide in the limiting groove in a limiting manner; a second support shaft rotatably installed on the outer wall of the first chassis is further included, and the telescopic end of an electric push rod arranged on the second support shaft is hinged to the straight section of the transmission member. When the electric push rod expands and contracts, it can drive the spline sleeve to longitudinally move inside the spline shaft.

[0012] Preferably, a base is arranged on the upper surface of the substrate, a motor is installed on the top of the base; a driving gear arranged at the output end of the motor; and a transmission gear fixed to the bottom end of the spline sleeve and meshing with the driving gear.

[0013] Preferably, the injection assembly includes a support base fixed on the upper surface of the substrate and placed inside the first chassis. A sleeve is provided on the top of the support base. Among them, a top plate is installed on the top of the sleeve, and an air inlet pipe is staggeredly arranged on one side of the top plate. A flame spraying element is arranged at the opening of each air inlet pipe; and two groups of air inlet pipes are arranged on the other side of the sleeve; it also includes a first air supply assembly and a second air supply assembly arranged on the top plate, and the first air supply assembly and the second air supply assembly are respectively communicated with the two groups of air inlet pipes.

[0014] Preferably, the first air supply assembly and the second air supply assembly have the same structure; the first air supply assembly includes a pipe body arranged at the bottom of the top plate. Among them, each group of two air inlet pipes are respectively communicated with the upper and lower parts of the pipe body, and a driving structure installed on the top of the top plate and communicated with the pipe body.

[0015] Preferably, the diameter of the pipe body where the first air supply assembly is located is larger than the diameter of the pipe body where the second air supply assembly is located.

[0016] Preferably, a switching valve assembly is further arranged inside the sleeve for switching and starting a plurality of air outlet pipes; the switching valve assembly includes a plurality of partition plates arranged inside the sleeve; and a cylinder arranged on the top plate, and a transmission shaft fixed at the output end of the cylinder extends into the sleeve and is fixedly connected with the plurality of partition plates.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Through the injection assembly and the transmission frame body provided in the present invention, among them, the transmission frame body can be used for the assembly of the busbar and the angle adjustment after assembly, ensuring the uniformity of the heat received by the busbar, and the injection end of the injection assembly is aligned with the transmission frame body, and the injection direction and position thereof can be changed, so as to simulate the combustion scene of the fire-facing surface of the busbar and improve the authenticity of the test.

[0019] 2. As another implementation manner of the present invention, by changing the connection manner between the assembly block and the second pin shaft, that is, the assembly block offsets with the first pin shaft as the axis, so as to realize the state switching of the clamping platform in the horizontal and vertical directions, and further simulate the fire protection test of the busbar in different positions and angles. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is Figure 1 another perspective three-dimensional structural diagram of

[0022] Figure 3 is a schematic internal structure diagram of the first chassis and the second chassis;

[0023] Figure 4is Figure 3 Another perspective three-dimensional structure schematic diagram of

[0024] Figure 5 is Figure 3 Other perspective three-dimensional structure schematic diagrams of

[0025] Figure 6 is Figure 3 A cross-sectional structure schematic diagram of

[0026] Figure 7 is Figure 3 Another cross-sectional structure schematic diagram of

[0027] Figure 8 is an enlarged structure schematic diagram at A;

[0028] Figure 9 is Figure 3 A partial enlarged structure schematic diagram of

[0029] In the figure: 111, substrate; 112, first chassis; 113, second chassis; 1141, chute; 1142, door body; 211, spline sleeve; 212, spline shaft; 213, first support rod; 214, special-shaped plate; 215, groove; 216, first pin shaft; 217, assembly block; 218, support; 219, mounting plate; 220, bolt; 221, mounting disc; 222, second support rod; 223, spherical hinge rod; 2241, support plate; 2242, telescopic rod; 2243, handle; 2246, second pin shaft; 2245, connecting rod; 2244, spring; 311, first support shaft; 312, transmission part; 313, second support shaft; 314, electric push rod; 315, transmission ring; 316, base; 317, motor; 318, driving tooth; 319, transmission tooth; 411, support seat; 412, sleeve; 413, intake pipe; 414, exhaust pipe; 415, top plate; 416, cylinder; 417, transmission shaft; 418, partition; 419, pipe body; 420, driving structure; 101, busbar trunking. Specific embodiments

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 should not be construed as a limitation of the present invention. The following describes each embodiment of the present invention in detail with reference to the drawings.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 9 , the present invention preferably provides a technical solution: a busbar fire performance test device, including: a substrate 111, a first chassis 112 and a second chassis 113 provided on the substrate 111, wherein the second chassis 113 is disposed in the middle of the first chassis 112 and communicates with the first chassis 112; and a transmission frame body disposed inside the second chassis 113, the transmission frame body includes a spline sleeve 211 penetrating through the bottom of the second chassis 113 and rotatably installed with the second chassis 113, and a spline shaft 212 is provided inside the spline sleeve 211; an assembly platform annularly disposed at the top of the spline shaft 212 and the spline sleeve 211 for installing a plurality of busbars 101; and a driving assembly provided on the substrate 111, and when the driving assembly drives the spline shaft 212 to longitudinally move inside the spline sleeve 211, a plurality of assembly platforms are individually longitudinally deflected, and when the driving assembly drives the spline sleeve 211 and the spline shaft 212 to rotate as a whole, a plurality of assembly platforms rotate horizontally as a whole; it further includes a spraying assembly disposed inside the first chassis 112 for the fire protection test of the busbar 101.

[0033] As Figure 1 , 2 shown, the first chassis 112 and the second chassis 113 provided on the substrate 111 communicate with each other and are respectively internally provided with a spraying assembly and a transmission frame body. Among them, the transmission frame body can be used for the assembly of the busbar 101 and the angle adjustment after assembly, and the spraying end of the spraying assembly is aligned with the transmission frame body, which can simulate the combustion scenario of the fire-exposed surface of the busbar 101;

[0034] Specifically, in combination with Figure 4 , 9 shown, the spline sleeve 211 is rotatably installed at the bottom of the second chassis 113, and the spline shaft 212 is disposed inside the spline sleeve 211 and is spline-connected with the spline sleeve 211. At the same time, the assembly platform annularly disposed at the top of the spline sleeve 211 and the spline shaft 212 can be used for placing a plurality of busbars 101. When the driving assembly disposed at the bottom ends of the spline sleeve 211 and the spline shaft 212 drives the spline shaft 212 to longitudinally move inside the spline sleeve 211, under the action of the assembly platform, the busbar 101 placed on the assembly platform can longitudinally rotate along the horizontal axis, and when the driving assembly drives the spline sleeve 211 to rotate, it drives a plurality of structures on the spline sleeve 211 to horizontally rotate along the vertical axis to realize the horizontal rotation process of the busbar 101 placed on the assembly platform. Through the provided transmission frame body, the present application can ensure the uniformity of heat reception of the busbar 101 by offsetting the busbar 101 in multiple angles and positions, and the structural characteristics of the spraying assembly can change the spraying direction and position to truly reflect the combustion scenario of the fire-exposed surface of the busbar 101 and improve the authenticity of the test.

[0035] Further, an installation disk 221 is fixed at the top end of the spline shaft 212; each assembly platform includes a first support rod 213 fixed to the upper part of the spline sleeve 211. A special-shaped plate 214 is rotatably installed at one end of the first support rod 213 away from the spline sleeve 211. A groove 215 is opened at one end of the special-shaped plate 214 away from the first support rod 213. A rotatable first pin shaft 216 and a second pin shaft 2246 are arranged in the groove 215; and a clamping platform connected to the first pin shaft 216 and the second pin shaft 2246 is used for assembling and fixing the busbar 101. It further includes a second support rod 222 fixed to the installation disk 221 corresponding to the first support rod 213. A spherical hinge rod 223 is hinged between the second support rod 222 and one side of the special-shaped plate 214. When the spline shaft 212 longitudinally moves inside the spline sleeve 211, the spherical hinge rod 223 drives the special-shaped plate 214 to longitudinally deflect with the first support rod 213 as the axis.

[0036] As Figure 9 shown, the first support rod 213 and the second support rod 222 are respectively fixed to the spline sleeve 211 and the installation disk 221 and are distributed up and down. The special-shaped plate 214 is rotatably installed at the end of the first support rod 213 and is also hinged to the second support rod 222 through the spherical hinge rod 223. Therefore, when the installation disk 221 longitudinally moves by the longitudinal power provided by the spline shaft 212, the spherical hinge rod 223 adaptively pulls or pushes one side of the special-shaped plate 214 to deflect. Specifically, in combination with Figure 6 , when the spline shaft 212 moves upward, the spherical hinge rod 223 drives the special-shaped plate 214 to rotate clockwise with the first support rod 213 as the axis, further driving the clamping platform arranged on the special-shaped plate 214 to rotate clockwise. Conversely, when the spline shaft 212 moves downward, it drives the clamping platform arranged on the special-shaped plate 214 to rotate counterclockwise, thereby realizing the process of longitudinal turnover of the busbar 101 on the clamping platform.

[0037] Further, the clamping platform includes an assembly block 217. A first through hole and a second through hole respectively inserted with the first pin shaft 216 and the second pin shaft 2246 are opened on the assembly block 217, and a support 218 fixed to the assembly block 217. Installation plates 219 are respectively fixed on both sides of the support 218, and screw holes are opened on the installation plates 219; and bolts 220 symmetrically threadedly connected inside the two screw holes.

[0038] Here, the support 218 is used for supporting the busbar 101. The bolts 220 respectively arranged on both sides of the support 218 can clamp both sides of the busbar 101 to complete the fixation of the busbar 101. Because two points determine a straight line, the assembly block 217 fixed to the support 218 can realize its fixation process with the special-shaped plate 214 through the second pin shaft 2246 and the first pin shaft 216; this design can adapt to busbars 101 of different sizes and improve the installation efficiency.

[0039] Embodiment 2

[0040] As another embodiment of the present invention, a pin structure is further provided on the special-shaped plate 214 for the insertion and detachment of the second pin shaft 2246 and the assembly block 217; the pin structure includes a support plate 2241 fixed on the upper surface of the special-shaped plate 214, a telescopic rod 2242 horizontally penetrating through the top of the support plate 2241, and a handle 2243 and a connecting rod 2245 respectively fixed at both ends of the telescopic rod 2242. Among them, a spring 2244 is externally connected to the telescopic rod 2242 between the handle 2243 and the support plate 2241, and one end of the connecting rod 2245 away from the support plate 2241 is fixed to the second pin shaft 2246.

[0041] As an embodiment of changing the position of the clamping platform, the present application changes the connection mode between the assembly block 217 and the second pin shaft 2246, that is, the assembly block 217 offsets with the first pin shaft 216 as the axis, so as to realize the horizontal and vertical state switching of the clamping platform, and further simulate the fire protection test of the bus duct 101 in different positions and angles;

[0042] Specifically, combined with Figure 8 , since the connecting rod 2245 fixed at one end of the telescopic rod 2242 is connected to the second pin shaft 2246, and the handle 2243 is provided at the other end of the support plate 2241, combined with the spring 2244, when the handle 2243 is pushed in the direction close to the connecting rod 2245, the connecting rod 2245 can drive the second pin shaft 2246 to disengage from the first through hole on the assembly block 217. At this time, the assembly block 217 loses the limit of the second pin shaft 2246 and can be switched from the horizontal state to the vertical state with the first pin shaft 216 as the axis, thereby changing the position of the bus duct 101. On the contrary, straighten the assembly block 217 so that the second pin shaft 2246 is inserted into the first through hole on the assembly block 217 again. The state switching of the clamping platform and the assembly operation of the bus duct 101 can be referred to below;

[0043] Such as Figure 1It can be seen that a first operating door is provided on one side of the first chassis 112 and the second chassis 113, and a second operating door is provided on the top of the second chassis 113. The first operating door and the second operating door have the same structure. Taking the first operating door as an example, the side walls of the first chassis 112 and the second chassis 113 are provided with openings, and slide grooves 1141 are provided on the side walls of the first chassis 112 and the second chassis 113 and are placed above and below the openings. A slider is provided in each slide groove 1141, and a door body 1142 is fixed between the two sliders to block the opening. When the bus duct 101 needs to be adjusted to a longitudinal position, the door body 1142 of the first operating door is opened at this time, and the clamping platform needs to be adjusted to the position of the first operating door. When the bus duct 101 needs to be reset to a lateral position, the door body 1142 of the second operating door is opened for operation. At the same time, when placing or taking the bus duct 101 in different positions, the corresponding door body 1142 can be opened for operation.

[0044] Furthermore, a transmission ring 315 is fixed to the bottom end of the spline shaft 212, and a limiting groove is provided on the outer periphery of the transmission ring 315; and a first support shaft 311 is arranged in the first chassis 112 near the lower part of the outer wall of the second chassis 113, and a transmission member 312 composed of a straight section and a U-shaped section is rotatably installed on the first support shaft 311, wherein limiting columns respectively arranged at the opposite ends of the U-shaped section where the transmission member 312 is located can slide within the limiting groove; it also includes a second support shaft 313 rotatably installed on the outer wall of the first chassis 112, and the telescopic end of the electric push rod 314 arranged on the second support shaft 313 is hinged to the straight section where the transmission member 312 is located. When the electric push rod 314 is extended and retracted, it can drive the spline sleeve 211 to move longitudinally inside the spline shaft 212.

[0045] Combination Figure 3 , 4 As shown in , 6, the known transmission member 312 is composed of a straight section and a U-shaped section, wherein the limiting columns respectively arranged at the opposite ends of the U-shaped section where the transmission member 312 is located can slide within the limiting groove, and the limiting groove is arranged on the outer periphery of the transmission ring 315 fixed to the bottom end of the spline shaft 212, and the straight section where the transmission member 312 is located is hinged to the telescopic end of the electric push rod 314, and the electric push rod 314 is rotatably installed with the second support shaft 313 arranged on the side wall of the first chassis 112, so that when the electric push rod 314 is extended and retracted, the electric push rod 314 adaptively deviates and pushes the transmission member 312 to rotate around the first support shaft 311 as the axis, and at the same time, the limiting shaft on the U-shaped section where the transmission member 312 is located moves within the limiting groove and drives the spline shaft 212 to move longitudinally within the spline sleeve 211, and specifically, when the electric push rod 314 is extended, the spline shaft 212 is pulled downward, and vice versa, the spline shaft 212 moves upward.

[0046] Furthermore, a base 316 is provided on the upper surface of the substrate 111 , and a motor 317 is installed on the top of the base 316 ; a driving tooth 318 is provided at the output end of the motor 317 ; and a transmission tooth 319 is fixed at the bottom end of the spline sleeve 211 and meshed with the driving tooth 318 .

[0047] Combination Figure 4 As shown, since the driving teeth 318 at the output end of the motor 317 are meshed with the transmission teeth 319 fixed at the bottom end of the spline shaft 212, when the motor 317 is running, the spline sleeve 211 can drive the various structures arranged thereon to rotate as a whole.

[0048] Example 3

[0049] As other embodiments of the present invention, the injection assembly includes a support base 411 fixed on the upper surface of the substrate 111 and placed inside the first chassis 112, and a sleeve 412 is arranged on the top of the support base 411, wherein a top plate 415 is installed on the top of the sleeve 412, and air intake pipes 413 are arranged in a staggered manner on one side of the sleeve 412, and a flame-spraying element is arranged at the opening of each air intake pipe 413; and two groups of air intake pipes 413 are arranged on the other side of the sleeve 412; and also include a first air supply assembly and a second air arch assembly arranged on the top plate 415, and the first air supply assembly and the second air arch assembly are respectively connected to the two groups of air intake pipes 413.

[0050] Combination Figure 3 As shown, the sleeve 412 is fixed on the top of the support seat 411, and a plurality of air outlet pipes 414 are arranged on one side of the sleeve 412, and two groups of air inlet pipes 413 are arranged on the other side. At the same time, a first air supply assembly and a second air arch assembly are arranged on the top plate 415 installed on the top of the sleeve 412, and the first air supply assembly and the second air arch assembly are respectively connected with the two groups of air inlet pipes 413. Therefore, when the first air supply assembly or the second air arch assembly is driven to operate, the ventilation process of the air outlet pipe 414 can be realized, and the flame-spraying element arranged at the opening of each air outlet pipe 414 can be used to realize the layout and injection of the fire source. It is worth mentioning that the flame-spraying element here is an existing mature technology, which is composed of two long and short oil bottles, a hose and a spray gun. The oil bottle is filled with gasoline or a thickened oil composed of gasoline and condensed oil powder. The first air supply assembly and the second air arch assembly provide the power for injection, and the pressurized oil is transported to the spray gun through the hose. The spray gun is equipped with an aiming and ignition device to ensure that the burning oil can accurately fly to the target to realize the flame-spraying operation.

[0051] Furthermore, the first air supply assembly and the second air arch assembly have the same structure; the first air supply assembly includes a tube body 419 arranged at the bottom of the top plate 415, wherein each group of two air inlet pipes 413 are respectively connected to the upper and lower parts of the tube body 419, and a driving structure 420 is installed on the top of the top plate 415 and connected to the tube body 419; further, the diameter of the tube body 419 where the first air supply assembly is located is larger than the diameter of the tube body 419 where the second air arch assembly is located.

[0052] Here, the driving structure 420 is an existing mature technology and can be selected as a compressed air cylinder, an air pump, etc. The first air supply component and the second air supply component provided in this application can be selectively used. Since the diameter of the pipe body 419 where the first air supply component is located is larger than the diameter of the pipe body 419 where the second air supply component is located, the larger the diameter, the smaller the pressure. Therefore, an appropriate air supply component can be selected to operate according to the requirements, changing the spraying environment, and further improving the simulation detection effect of this device. This design can simulate the pressure difference caused by the rising of hot air flow in a fire and test the deformation of the busbar under thermal expansion and pressure shock.

[0053] Embodiment 4

[0054] As other embodiments of the present invention, a switching valve assembly is further provided inside the sleeve 412 for the switching start of a plurality of air outlet pipes 414; the switching valve assembly includes a plurality of partition plates 418 internally provided in the sleeve 412; and a cylinder 416 provided on the top plate 415, and a transmission shaft 417 fixed to the output end of the cylinder 416 extends into the sleeve 412 and is fixedly connected to a plurality of partition plates 418.

[0055] Combined with Figure 6 、 7 As shown, a plurality of partition plates 418 provided in this embodiment can divide the interior of the sleeve 412 into a plurality of cavities. When an appropriate air supply component is selected to operate, a plurality of air outlet pipes 414 are provided on one side of the sleeve 412 here, and two air inlet pipes 413 are correspondingly connected on the other side. When a plurality of partition plates 418 longitudinally move under the action of the transmission shaft 417, the plurality of air outlet pipes 414 connected to the air inlet pipes 413 perform a fire spraying operation, and the plurality of air outlet pipes 414 not connected to the air inlet pipes 413 wait to operate, so as to realize the irregular fire spraying operation of the plurality of air outlet pipes 414 and simulate the changeable environment of the fire field.

[0056] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium. Among them, there are various ways of detachable installation. For example, it can be by the way of cooperation of plugging and buckling, and for another example, by the way of bolt connection, etc.

[0057] The above embodiments' specific description of the present invention is only for further explaining the present invention and cannot be understood as a limitation on the protection scope of the present invention. Those skilled in the art's non-essential improvements and adjustments made according to the content of the above invention all fall within the protection scope of the present invention.

Claims

1. A busbar trunking fire resistance performance testing device, characterized in that, Comprising: A substrate (111), a first chassis (112) and a second chassis (113) provided on the substrate (111), wherein the second chassis (113) is disposed in the middle of the first chassis (112) and is communicated with the first chassis (112); And a transmission frame body disposed inside the second chassis (113), the transmission frame body includes a spline sleeve (211) penetrating through the bottom of the second chassis (113) and rotatably installed with the second chassis (113), and a spline shaft (212) is arranged inside the spline sleeve (211); An assembly platform annularly disposed at the top of the spline shaft (212) and the spline sleeve (211) for installing a plurality of busbars (101); And a driving component disposed on the substrate (111), and when the driving component drives the spline shaft (212) to longitudinally move inside the spline sleeve (211), a plurality of assembly platforms are longitudinally deflected individually, and when the driving component drives the spline sleeve (211) and the spline shaft (212) to rotate integrally, a plurality of assembly platforms rotate horizontally as a whole; It further includes a spraying component disposed inside the first chassis (112) for the fire protection test of the busbar (101).

2. A busbar fire protection performance testing device according to claim 1, characterized in that: An installation disk (221) is fixed at the top end of the spline shaft (212); Each of the assembly platforms includes a first support rod (213) fixed to the upper part of the spline sleeve (211), a special-shaped plate (214) is rotatably installed at one end of the first support rod (213) away from the spline sleeve (211), a groove (215) is opened at one end of the special-shaped plate (214) away from the first support rod (213), and a rotatable first pin shaft (216) and a second pin shaft (2246) are arranged inside the groove (215); And a clamping platform connected to the first pin shaft (216) and the second pin shaft (2246) for assembling and fixing the busbar (101); It further includes a second support rod (222) fixed to the installation disk (221) corresponding to the first support rod (213), and a spherical hinge rod (223) is hinged between the second support rod (222) and one side of the special-shaped plate (214). When the spline shaft (212) longitudinally moves inside the spline sleeve (211), the spherical hinge rod (223) drives the special-shaped plate (214) to longitudinally deflect with the first support rod (213) as the axis.

3. A busbar fire protection performance testing device according to claim 2, characterized in that: The clamping platform includes an assembly block (217), a first through hole and a second through hole respectively inserted with the first pin shaft (216) and the second pin shaft (2246) are opened on the assembly block (217), and a support (218) fixed to the assembly block (217), mounting plates (219) are respectively fixed on both sides of the support (218), and screw holes are opened on the mounting plates (219); And bolts (220) symmetrically threadedly connected inside the two screw holes.

4. A busbar fire protection performance testing device according to claim 2, characterized in that: The special-shaped plate (214) is also provided with a pin structure for the insertion and detachment of the second pin shaft (2246) and the assembly block (217); The pin structure includes a support plate (2241) fixed on the upper surface of the special-shaped plate (214). A telescopic rod (2242) is horizontally penetrated through the top of the support plate (2241), and a handle (2243) and a connecting rod (2245) are respectively fixed at both ends of the telescopic rod (2242). Among them, a spring (2244) is externally connected to the telescopic rod (2242) between the handle (2243) and the support plate (2241), and one end of the connecting rod (2245) far from the support plate (2241) is fixed to the second pin shaft (2246).

5. The busbar groove fire performance testing device according to claim 1, wherein: A transmission ring (315) is fixed at the bottom end of the spline shaft (212), and a limiting groove is formed on the outer circumference of the transmission ring (315); And a first support shaft (311) is arranged on the lower part of the outer wall of the first chassis (112) close to the second chassis (113). A transmission member (312) composed of a straight section and a U-shaped section is rotatably installed on the first support shaft (311). Among them, limiting columns respectively arranged at opposite ends of the U-shaped section where the transmission member (312) is located can slide in the limiting groove in a limited manner; It further includes a second support shaft (313) rotatably installed on the outer wall of the first chassis (112). The telescopic end of an electric push rod (314) arranged on the second support shaft (313) is hinged to the straight section where the transmission member (312) is located. When the electric push rod (314) expands and contracts, it can drive the spline sleeve (211) to longitudinally move inside the spline shaft (212).

6. The busbar groove fire performance testing device according to claim 1, wherein: A base (316) is arranged on the upper surface of the base plate (111), and a motor (317) is installed on the top of the base (316); A driving tooth (318) arranged at the output end of the motor (317); And a transmission tooth (319) fixed at the bottom end of the spline sleeve (211) and meshing with the driving tooth (318).

7. The busbar groove fire performance testing device according to claim 1, wherein: The spraying assembly includes a support seat (411) fixed on the upper surface of the base plate (111) and placed inside the first chassis (112). A sleeve (412) is arranged on the top of the support seat (411). Among them, a top plate (415) is installed on the top of the sleeve (412), and an air inlet pipe (413) is arranged in a staggered manner on one side of it. A fire spraying element is arranged at the opening of each air inlet pipe (413); and two groups of air inlet pipes (413) are arranged on the other side of the sleeve (412); It further includes a first air supply assembly and a second air supply assembly arranged on the top plate (415). The first air supply assembly and the second air supply assembly are respectively communicated with the two groups of air inlet pipes (413).

8. The busbar groove fire performance testing device according to claim 7, wherein: The first air supply assembly and the second air supply assembly have the same structure; The first air supply assembly includes a pipe body (419) arranged at the bottom of the top plate (415). Among them, two intake pipes (413) in each group are respectively communicated with the upper and lower parts of the pipe body (419), and a driving structure (420) installed at the top of the top plate (415) and communicated with the pipe body (419).

9. A busbar trunking fire resistance performance testing device according to claim 1, characterized in that: The diameter of the pipe body (419) where the first air supply assembly is located is larger than the diameter of the pipe body (419) where the second air supply assembly is located.

10. A busbar trunking fire resistance performance testing device according to claim 7, characterized in that: A switching valve assembly is further arranged inside the sleeve (412) for switching and starting a plurality of outlet pipes (414); The switching valve assembly includes a plurality of partition plates (418) arranged inside the sleeve (412); And a cylinder (416) arranged on the top plate (415). A transmission shaft (417) fixed to the output end of the cylinder (416) extends into the sleeve (412) and is fixedly connected with a plurality of partition plates (418).

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