Fire-resistant bus duct with switching structure

Abstract

The utility model relates to a bus duct, in particular to a fire-resistant bus duct with a switching structure, which comprises two bus duct main bodies and a connector arranged between the two bus duct main bodies and used for connecting the two bus duct main bodies, and two groups of first elliptical holes are symmetrically arranged at one end, close to the connector, of each bus duct main body up and down. The bus duct bodies are arranged in an I shape, the first oval holes are formed in the edge portions of the bus duct bodies in a penetrating mode, a quick covering structure is arranged between the two bus duct bodies, and the quick covering structure is connected with the first oval holes. According to the utility model, the quick covering structure is arranged at the connecting part of the two bus duct main bodies, so that the cover plate can be conveniently detached from the two bus duct main bodies when the connecting part of the bus duct main bodies at the two ends needs to be overhauled, the use effect of convenient disassembly and assembly is improved, the cover plate can be conveniently lifted and detached, and the service life of the bus duct is prolonged. And the cover plate is convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bus duct, specifically a fireproof bus duct with switching structure. BACKGROUND

[0002] The fireproof bus duct with switching structure is a power distribution device commonly used in power systems, mainly used for safe and effective transmission of power between buildings or different devices. Unlike traditional cables, the fireproof bus duct not only can carry power transmission tasks, but also has the function of maintaining power supply in emergency situations such as fire.

[0003] Currently, when the fireproof bus duct with switching structure is closed at the connection part of the two sections of the fireproof bus duct using a cover plate, multiple bolts are needed to tightly install and fit the cover plate on the fireproof bus duct. When disassembling the multiple bolts, they need to be loosened one by one, which increases the workload during installation or disassembly of the cover plate and affects the convenient disassembly and use during internal maintenance of the fireproof bus duct. SUMMARY

[0004] The purpose of the utility model is to provide a fireproof bus duct with switching structure to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A fireproof bus duct with switching structure, comprising two bus duct bodies and a connector for connecting the two bus duct bodies, the bus duct body is symmetrically provided with two groups of first oval holes near one end of the connector, the bus duct body is arranged in an I-shaped manner, the first oval holes are formed through the edge part of the bus duct body, a quick cover structure is arranged between the two bus duct bodies, and the quick cover structure is connected with the first oval holes.

[0007] The quick cover structure comprises a cover plate covering the connection part of the two bus duct bodies, two guide and rebound mechanisms symmetrically arranged on the cover plate, a pinching mechanism arranged on both sides of the guide and rebound mechanisms and connected therewith, and a fastening mechanism arranged at both ends of the pinching mechanism and connected therewith, the fastening mechanism is installed on the cover plate, and the fastening mechanism is connected with the first oval holes.

[0008] When the two pinch mechanisms pinch each other and move closer at the two sides of the guide and rebound mechanism, the fastening mechanism is driven to rotate 90 degrees on the cover plate, and when the fastening mechanism rotates 90 degrees, the connection state with the first oval hole can be switched between interference and disconnected interference, and when the fastening mechanism is disconnected from the first oval hole, the cover plate is lifted to separate the cover from the two bus duct body connection parts.

[0009] The fire-resistant bus duct with the adapter structure as described above: second oval holes are formed at the four corner parts of the cover plate, and two limiting protruding columns are symmetrically connected to the cover plate at the two sides of each second oval hole.

[0010] The fire-resistant bus duct with the adapter structure as described above: the guide and rebound mechanism includes a fixed seat connected to the middle part of the cover plate, two plug-in rods connected to the two ends of the fixed seat, and a spring sleeved on each plug-in rod.

[0011] The other end of the plug-in rod is connected with an interference protruding disc, and one end of the spring interferes with the fixed seat.

[0012] The fire-resistant bus duct with the adapter structure as described above: the pinch mechanism includes a push piece and a rack connected to the two ends of the push piece, and two plug-in holes are symmetrically formed in the push piece.

[0013] The plug-in holes are slidably connected with the plug-in rods, one side of the push piece interferes with the other end of the spring, and the other side of the push piece interferes with the interference protruding disc at one end of the plug-in rod.

[0014] The fire-resistant bus duct with the adapter structure as described above: the fastening mechanism includes a toothed disc, a bolt column rotatably connected to the toothed disc, and an interference block assembly threadedly connected with the bolt column.

[0015] Two arc-shaped holes are symmetrically formed in the toothed disc along the radial direction, a rotating hole is formed at the center part of the toothed disc, four guide columns are arrayed at the bottom of the toothed disc, the bolt column is rotatably connected in the rotating hole, the bolt column is rotatably connected in the combined space of the four guide columns, and the toothed disc is engaged with the rack.

[0016] The arc-shaped holes are slidably connected with the limiting protruding columns, the four guide columns are movably arranged in the second oval hole, and one end of each guide column away from the toothed disc is connected with a protruding block.

[0017] The fire-resistant bus duct with the adapter structure as described above: the interference block assembly includes an oval interference block threadedly connected with the bolt column and four guide holes formed in the oval interference block along the radial direction of the bolt column.

[0018] The guiding hole is slidably inserted with the guiding column, and the bottom of the elliptical abutting block abuts against the protrusion at one end of the guiding column.

[0019] The length dimension of the elliptical abutting block is greater than the width dimension of the first elliptical hole, and the length dimension of the elliptical abutting block is less than the length dimension of the first elliptical hole.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The quick cover structure is arranged at the connecting position of the two bus duct bodies, so that the cover plate can be conveniently detached from the two bus duct bodies when the connecting position of the two bus duct bodies needs to be overhauled, and the convenient dismounting effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the whole fireproof bus duct with the adapter structure.

[0023] Figure 2 It is another aspect structural schematic view of the quick cover structure of the fireproof bus duct with the adapter structure.

[0024] Figure 3 It is a structural schematic view of the connecting position of the fireproof bus duct with the adapter structure.

[0025] Figure 4 It is a structural schematic view of the connector of the fireproof bus duct with the adapter structure.

[0026] Figure 5 It is a structural schematic view of the quick cover structure of the fireproof bus duct with the adapter structure.

[0027] Figure 6 It is another aspect structural schematic view of the quick cover structure of the fireproof bus duct with the adapter structure.

[0028] Figure 7 It is a structural schematic view of the cover plate of the fireproof bus duct with the adapter structure.

[0029] Figure 8The structure diagram of the pinch mechanism in the fireproof bus duct with the switching structure.

[0030] Figure 9 The structure diagram of the pinch mechanism in the fireproof bus duct with the switching structure.

[0031] Figure 10 The structure diagram of the fastening mechanism in the fireproof bus duct with the switching structure.

[0032] Figure 11 The structure diagram of the tooth disc in the fireproof bus duct with the switching structure.

[0033] Figure 12 The structure diagram of the abutting block assembly in the fireproof bus duct with the switching structure.

[0034] In the figure: 1, bus duct body; 2, connector; 3, first oval hole; 4, cover plate; 5, second oval hole; 6, limiting protruding column; 7, fixed seat; 8, insertion rod; 9, spring; 10, push piece; 11, insertion hole; 12, rack; 13, tooth disc; 14, arc hole; 15, rotating hole; 16, guide column; 17, bolt column; 18, oval abutting block; 19, guide hole. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0036] Please refer to Figures 1-12 In the embodiments of the present application, a fireproof bus duct with a switching structure comprises two bus duct bodies 1 and a connector 2 for connecting the two bus duct bodies 1, two groups of first oval holes 3 are symmetrically arranged on one end of the bus duct body 1 close to the connector 2, the bus duct body 1 is arranged in an I-shaped manner, the first oval holes 3 are arranged through the edge part of the bus duct body 1, a quick cover structure is arranged between the two bus duct bodies 1, and the quick cover structure is connected with the first oval holes 3.

[0037] The quick cover structure comprises a cover plate 4 covering the connection part of the two bus duct bodies 1, two guide rebound mechanisms symmetrically arranged on the cover plate 4, pinch mechanisms arranged on the two sides of the guide rebound mechanisms and connected with the guide rebound mechanisms, and fastening mechanisms arranged at the two ends of the pinch mechanisms and connected with the pinch mechanisms, the fastening mechanisms are installed on the cover plate 4, and the fastening mechanisms are connected with the first oval holes 3.

[0038] When the two pinch mechanisms pinch the mutual approaching action on both sides of the guide and rebound mechanism at the same time, the fastening mechanism is driven to rotate by 90 degrees on the cover plate 4 for adjustment, and when the fastening mechanism rotates by 90 degrees, the connection state with the first elliptical hole 3 can be switched between interference and disconnected interference.

[0039] In this embodiment, when the cover plate 4 needs to be disassembled at the two bus duct body 1 connection parts, the two pinch mechanisms on the cover plate 4 are pinched at the same time, so that the pinch mechanism moves along the horizontal direction of the cover plate 4 on the guide and rebound mechanism for adjustment. Since the pinch mechanism is connected with the fastening mechanism, when the pinch mechanism operates, the fastening mechanism can be driven to rotate by 90 degrees on the cover plate 4, so that the connection and disconnection state of the fastening mechanism with the first elliptical hole 3 can be controlled. When the fastening mechanism is disconnected with the first elliptical hole 3, the cover plate 4 can be lifted to achieve the convenient disassembly and use effect of the cover plate 4 on the two bus duct bodies 1. When the cover plate 4 needs to be installed, the above steps are used, and at this time the fastening mechanism is connected to the first elliptical hole 3, so that the cover plate 4 is buckled on the bus duct body 1. Then the fastening mechanism is fastened, so that the fastening mechanism interferes with the bus duct body 1 at the part of the first elliptical hole 3, achieving the convenient installation and use of the cover plate 4 on the bus duct body 1. Through the design, the disassembly and assembly of the cover plate 4 can be improved, and the operation and use of the bus duct body 1 during maintenance can be facilitated.

[0040] As a further scheme of the utility model, the second elliptical hole 5 is arranged at the four corner parts of the cover plate 4, and two limiting convex columns 6 are symmetrically connected to the cover plate 4 at the two sides of each second elliptical hole 5.

[0041] In this embodiment, the second elliptical hole 5 on the cover plate 4 corresponds to the first elliptical hole 3, and the limiting convex column 6 is connected to the cover plate 4 at the two sides of the second elliptical hole 5. Through the covering of the cover plate 4 at the connection parts of the two bus duct bodies 1, the connector 2 and the bus can be avoided to be exposed, and the safety of electricity use can be improved.

[0042] As a further scheme of the utility model, the guide and rebound mechanism comprises a fixed seat 7 connected to the middle part of the cover plate 4, two plug-in rods 8 connected to the two ends of the fixed seat 7, and a spring 9 sleeved on each plug-in rod 8.

[0043] The other end of the plug-in rod 8 is connected with an interference convex disc, and one end of the spring 9 interferes with the fixed seat 7.

[0044] In this embodiment, two fixing seats 7 are symmetrically arranged on the cover plate 4, and a fixed plug rod 8 is sleeved with a spring 9, and a resisting convex disc is arranged at one end of the plug rod 8 to meet the limiting requirement, so that the pinch mechanism can be moved between the set moving distance on the plug rod 8, and the use effect is ensured.

[0045] As a further scheme of the utility model, the pinch mechanism comprises a shifting piece 10 and a rack 12 connected to two ends of the shifting piece 10, and two plug holes 11 are symmetrically arranged on the shifting piece 10.

[0046] The plug hole 11 is slidably connected with the plug rod 8, one side of the shifting piece 10 is in contact with the other end of the spring 9, and the other side of the shifting piece 10 is in contact with the resisting convex disc at one end of the plug rod 8.

[0047] In this embodiment, the interval between the two shifting pieces 10 is reduced by pinching the shifting pieces 10 on both sides of the cover plate 4, the plug hole 11 on the shifting piece 10 is slidably connected with the corresponding plug rod 8, one side of the shifting piece 10 is in contact with one end of the spring 9, and the other end of the spring 9 is in contact with the fixing seat 7, so that when the two shifting pieces 10 are pinched and moved close to each other, the spring 9 is squeezed to generate a restoring force, and the shifting piece 10 is pushed to return to the original position.

[0048] As a further scheme of the utility model, the fastening mechanism comprises a toothed disc 13, a bolt column 17 rotatably connected to the toothed disc 13, and a resisting block assembly screw-connected with the bolt column 17.

[0049] Two arc-shaped holes 14 are symmetrically arranged on the toothed disc 13 along the radial direction, a rotating hole 15 is arranged at the center of the toothed disc 13, four guide columns 16 are arranged at the bottom of the toothed disc 13, the bolt column 17 is rotatably connected to the rotating hole 15, the bolt column 17 is rotatably connected to the combined space of the four guide columns 16, and the toothed disc 13 is engaged with the rack 12.

[0050] In this embodiment, since the rack 12 is engaged with the toothed disc 13, and the rack 12 is connected to the shifting piece 10, when the shifting piece 10 is pinched, the rack 12 drives the toothed disc 13 to move, and the rotating adjustment of the toothed disc 13 is realized.

[0051] As a further scheme of the utility model, the arc-shaped hole 14 is slidably connected with the limiting convex column 6, the four guide columns 16 are movably arranged in the second oval hole 5, and a convex block is connected to one end of each guide column 16 away from the toothed disc 13.

[0052] In the embodiment, the arc-shaped hole 14 on the toothed disc 13 is in sliding connection with the limiting protruding column 6, so that when the toothed disc 13 is engaged and moved by the rack 12, the toothed disc 13 can only rotate within the designed rotating range of the arc-shaped hole 14, and the toothed disc 13 can rotate back and forth by 90 degrees through the design of the arc-shaped hole 14, and the four guide columns 16 are movably arranged in the second elliptical hole 5, so that when the toothed disc 13 rotates by 90 degrees, the four guide columns 16 can move in the second elliptical hole 5 without hindering the adjustment and use.

[0053] As a further scheme of the utility model, the abutting block assembly comprises an elliptical abutting block 18 in threaded connection with the bolt column 17 and four guide holes 19 radially arranged on the elliptical abutting block 18 along the bolt column 17;

[0054] The guide holes 19 are in sliding insertion with the guide columns 16, and the bottom of the elliptical abutting block 18 is in abutment with the protruding block at one end of the guide column 16;

[0055] The length dimension of the elliptical abutting block 18 is greater than the width dimension of the first elliptical hole 3, and the length dimension of the elliptical abutting block 18 is less than the length dimension of the first elliptical hole 3.

[0056] In this embodiment, when the toothed disc 13 rotates by 90 degrees, the elliptical abutting block 18 will follow the rotation of the toothed disc 13 due to the sliding insertion of the four guide columns 16 connected to the bottom of the toothed disc 13 into the guide holes 19 formed on the elliptical abutting block 18. When the cover plate 4 is installed, the two tabs 10 are pinched to make the toothed disc 13 rotate by 90 degrees, at this time, the elliptical abutting block 18 will coincide with the first elliptical hole 3. Since the size of the elliptical abutting block 18 is smaller than the first elliptical hole 3, the elliptical abutting block 18 can slide and adjust in the first elliptical hole 3. After the tabs 10 are released, the toothed disc 13 is reset to rotate, at this time, the elliptical abutting block 18 remains in a 90-degree misalignment state with the first elliptical hole 3. By rotating and adjusting the bolt column 17, since the bolt column 17 is threadedly connected with the elliptical abutting block 18 and the bolt column 17 is rotationally connected in the rotating hole 15 formed on the toothed disc 13, the elliptical abutting block 18 is limited by the guide column 16 and cannot rotate, so when the bolt column 17 rotates, the elliptical abutting block 18 can be raised and lowered on the guide column 16 to make the elliptical abutting block 18 abut on the bus duct body 1 at the position of the first elliptical hole 3, so that the cover plate 4 can be tightly attached to the connecting position of the two bus duct bodies 1, achieving cover sealing. When the cover plate 4 needs to be disassembled, a portion of the bolt column 17 is loosened in advance to reduce the abutting force of the elliptical abutting block 18 on the bus duct body 1 at the position of the first elliptical hole 3, and then the tabs 10 are pinched to make the toothed disc 13 rotate by 90 degrees, so that the cover plate 4 can be conveniently lifted and separated from the attachment position of the two bus duct bodies 1, improving the disassembly convenience of the cover plate 4, reducing the rotation stroke of the bolt column 17, and reducing the disassembly time.

[0057] The above embodiments are exemplary and not limiting, and therefore, the technical solutions of the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application.

Claims

1. A fire-resistant bus duct with a switching structure, comprising two bus duct bodies (1) and a connector (2) for connecting the two bus duct bodies (1) to each other, characterized in that Two groups of first oval holes (3) are symmetrically arranged on the bus duct body (1) near one end of the connector (2), the bus duct body (1) is arranged in an I-shaped manner, the first oval holes (3) are arranged at the edge of the bus duct body (1), a quick cover structure is arranged between the two bus duct bodies (1), and the quick cover structure is connected with the first oval holes (3). The quick cover structure comprises a cover plate (4) covering the connection part of the two bus duct bodies (1), two guide and rebound mechanisms symmetrically arranged on the cover plate (4), two pinch mechanisms arranged on the two sides of the guide and rebound mechanisms and connected with the guide and rebound mechanisms, and a fastening mechanism arranged at the two ends of the pinch mechanism and connected with the pinch mechanism, the fastening mechanism is arranged on the cover plate (4), and the fastening mechanism is connected with the first oval holes (3). When the two pinch mechanisms pinch and move close to each other on the two sides of the guide and rebound mechanism, the fastening mechanism is driven to rotate by 90 degrees on the cover plate (4) for adjustment, when the fastening mechanism rotates by 90 degrees for adjustment, the connection state with the first oval hole (3) can be switched between interference and disconnection, when the fastening mechanism is disconnected from the first oval hole (3), the cover plate (4) is lifted to make the cover plate (4) separate from the cover of the connection part of the two bus duct bodies (1).

2. The fire-resistant busway with transition structure of claim 1, wherein, Second oval holes (5) are arranged at the four corner parts of the cover plate (4), and two limiting convex columns (6) are symmetrically connected to the cover plate (4) on the two sides of each second oval hole (5).

3. The fire resistant busway with transition structure of claim 1, wherein, The guide and rebound mechanism comprises a fixed seat (7) connected to the middle part of the cover plate (4), two plug-in rods (8) connected to the two ends of the fixed seat (7), and a spring (9) sleeved on each plug-in rod (8). The other end of the plug-in rod (8) is connected with a interference convex disc, and one end of the spring (9) interferes with the fixed seat (7).

4. The fire-resistant busway with transition structure of claim 3, wherein, The pinch mechanism comprises a push piece (10) and a rack (12) connected to the two ends of the push piece (10), and two plug-in holes (11) are symmetrically arranged on the push piece (10). The plug-in hole (11) is slidably connected with the plug-in rod (8), one side of the push piece (10) interferes with the other end of the spring (9), and the other side of the push piece (10) interferes with the interference convex disc at one end of the plug-in rod (8).

5. The fire resistant busway with transition structure of claim 1, wherein, The fastening mechanism comprises a toothed disc (13), a bolt column (17) rotatably connected to the toothed disc (13), and an interference block assembly threadedly connected with the bolt column (17). Two arc-shaped holes (14) are symmetrically arranged on the toothed disc (13) along the radial direction, a rotating hole (15) is arranged at the center part of the toothed disc (13), four guide columns (16) are arranged in a rectangular array at the bottom of the toothed disc (13), the bolt column (17) is rotatably connected in the rotating hole (15), the bolt column (17) is rotatably connected in the combined space of the four guide columns (16), and the toothed disc (13) is engaged with the rack (12).

6. The fire-resistant busway with transition structure of claim 5, wherein, The arc-shaped hole (14) is in sliding connection with the limiting convex column (6), four guide columns (16) are movably arranged in the second elliptical hole (5), and one end of each guide column (16) is connected with a convex block.

7. The fire resistant busway with transition structure of claim 5, wherein, The abutting block assembly comprises an elliptical abutting block (18) in threaded connection with the bolt column (17) and four guide holes (19) radially formed on the elliptical abutting block (18) along the bolt column (17); The guide hole (19) is in sliding insertion with the guide column (16), and the bottom of the elliptical abutting block (18) is in abutment with the convex block at one end of the guide column (16); The length dimension of the elliptical abutting block (18) is greater than the width dimension of the first elliptical hole (3), and the length dimension of the elliptical abutting block (18) is less than the length dimension of the first elliptical hole (3).

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