Firm bus duct

Abstract

The utility model discloses a firm bus duct, which comprises a shell, clamping structures are respectively arranged on the top side and the bottom side in the shell, a driving structure is arranged on one side of the top of each clamping structure, a fireproof plate is arranged at the bottom of one clamping structure, and a supporting plate is arranged at the top of the other clamping structure. Four limiting grooves are symmetrically formed in the two sides of the center of the fireproof plate and the two sides of the center of the supporting plate correspondingly, and sliding grooves are formed in the two sides of the interiors of the four limiting grooves correspondingly. The copper bars are sequentially arranged between the supporting plate and the fireproof plate side by side, and then the clamping structure is driven by the driving structure to clamp the copper bars, so that the clamping device is suitable for clamping the copper bars with different thicknesses, the applicability of the bus duct is improved, and when a certain position in the shell is on fire due to a short circuit phenomenon, the temperature of the position rises, and the fire cannot be burnt. The heat shrinkage film at the top of the bus duct shrinks due to heating and leaks out of the inner cavity, so that the flame-retardant powder in the inner cavity falls off to extinguish a fire source at the place, thereby avoiding fire hazards and improving the use safety of the bus duct.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a firm bus duct. Background Art

[0002] When the fan starts working, the vibration of the bearing is very small, but as the running time increases, the dust in the fan will adhere to the impeller unevenly, gradually destroying the dynamic balance of the fan and causing the bearing vibration to gradually increase. Once the vibration reaches the maximum value allowed by the fan, the fan must be shut down for repair.

[0003] A light, firm, waterproof and fire-resistant bus duct with publication number CN215120020U comprises a shell, a top cover and a bottom cover are respectively fixedly installed on both sides of the shell, a top sealing block is arranged in the middle of the lower end face of the top cover, and top pressure chambers are symmetrically arranged on both sides of the top end face of the top cover, a T-shaped block is slidably inserted in the top pressure chamber, and an upper insulating slot is fixedly installed between the bottom end faces of the vertical parts of the T-shaped block, a bottom sealing block and a lower insulating slot are arranged in the middle of the upper end face of the bottom cover, and a copper bar is fixedly clamped between the lower insulating slot and the upper insulating slot. In the utility model, not only can the T-shaped block arranged in the top pressure chamber cooperate with the spring to make the upper insulating slot press and fix the copper bar, which is not only easy to install, but also reduces the occurrence of loosening of the copper bar during subsequent use. At the same time, the heat dissipation fins, activated carbon and filter are used in combination with each other, thereby greatly improving its waterproofness and fire resistance. In addition, the existing bus ducts also have the following disadvantages during use:

[0004] (1) The existing bus duct cannot clamp copper bars of different thicknesses, which greatly reduces the applicability of the bus box;

[0005] (2) The existing bus duct cannot be fire-fighting and explosion-proof. The bus duct may catch fire or explode due to a short circuit, and in serious cases, it may cause a fire. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a firm bus duct.

[0007] In order to solve the above problems, the technical solution of the utility model is as follows: comprising a shell, wherein the internal top and bottom sides of the shell are respectively provided with clamping structures, and the top side of the clamping structure is provided with a driving structure, wherein the bottom of one of the clamping structures is provided with a fireproof plate, and the top of the other clamping structure is provided with a support plate, and four limiting grooves are symmetrically provided on both sides of the center of the fireproof plate and the support plate, and sliding grooves are respectively provided on both sides of the inside of the four limiting grooves;

[0008] The fireproof board comprises a transverse board, an inner cavity and a heat shrink film. A plurality of equidistant inner cavities are arranged inside the transverse board, and the bottom of the transverse board is fixedly connected to the heat shrink film.

[0009] Furthermore, the driving structure includes a rotating shaft, a rotating disk, a worm gear and a worm, the bottom of the rotating shaft is fixedly connected to two worm gears, the top of the rotating shaft passes through the shell and is connected to the rotating disk, a fixed structure is provided between the rotating disk and the shell, and one side of the two worm gears are respectively meshed and connected to the worm.

[0010] Furthermore, the threads of the two worms are opposite, and two ends of the two worms are movably connected to the inner wall of the shell.

[0011] Furthermore, one end of the four clamping columns passes through the limiting groove and is sleeved with the insulating sleeve, the bottom sides of the four clamping columns are fixedly connected to the sliders, the four clamping columns are respectively adapted to be connected with the limiting grooves, the eight sliders are respectively adapted to be connected with the slide grooves, the worm gear 2 is meshedly connected with one of the worms, and the worm gear 3 is meshedly connected with the other worm.

[0012] Furthermore, the interiors of several of the inner cavities are respectively filled with flame retardant powder, the four limit grooves are arc-shaped, the clamping structure is symmetrically provided with two groups around the perpendicular midline of the shell, the fixing structure includes an insert rod, and the outer walls of the rotating disk and the shell are provided with several matching slots, and the insert rod fixes the rotating disk and the shell.

[0013] Further, the clamping structure includes a transmission shaft, a transmission sleeve, worm gear two, worm gear three, connecting rod one, connecting rod two and a clamping column. The outer wall of the transmission shaft is sleeved with the transmission sleeve, the top of the transmission shaft is fixedly connected to worm gear three, the top of the transmission sleeve is fixedly connected to worm gear two, the two sides of the bottom outer wall of the transmission shaft are respectively fixedly connected to connecting rod one, the two sides of the bottom outer wall of the transmission sleeve are respectively fixedly connected to connecting rod two, the bottom of the two connecting rods one ends away from the transmission shaft are respectively fixedly connected to the clamping columns, and the bottom of the two connecting rods two ends away from the transmission sleeve are respectively fixedly connected to the clamping columns.

[0014] Furthermore, the fixing structure includes an insertion rod, and the outer walls of the rotating disk and the shell are provided with a plurality of matching slots, and the insertion rod fixes the rotating disk and the shell.

[0015] The advantages of the utility model compared with the existing technology are:

[0016] 1. The utility model provides a firm bus duct, which places the copper bars side by side in the middle of the support plate and the fireproof plate, and then drives the clamping structure to clamp the copper bars through the driving structure, so as to be suitable for clamping copper bars of different thicknesses, thereby increasing the applicability of the bus duct;

[0017] 2. The utility model provides a firm bus duct which is provided with a fireproof plate. When a fire occurs somewhere inside the shell due to a short circuit, the temperature therein rises, causing the heat shrink film on the top thereof to shrink due to the heat and leak out of the inner cavity, causing the flame retardant powder inside the inner cavity to fall, thus extinguishing the fire source at that place, thereby avoiding causing a fire and increasing the safety of the bus duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of the utility model.

[0019] Figure 2 yes Figure 1 Partial cross-sectional view of the interior of the middle shell.

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0022] Figure 5 yes Figure 2 A magnified view of the internal structure of the medium fireproof board.

[0023] As shown in the figure: 1. Shell; 2. Driving structure; 201. Rotating shaft; 202. Rotating disk; 203. Worm gear one; 204. Worm; 205. Insert rod; 3. Clamping structure; 301. Transmission shaft; 302. Transmission sleeve; 303. Worm gear two; 304. Worm gear three; 305. Connecting rod one; 306. Connecting rod two; 307. Clamping column; 308. Sliding block; 309. Insulating sleeve; 4. Fireproof board; 401. Horizontal board; 402. Inner cavity; 403. Heat shrink film; 5. Support plate; 6. Slot; 7. Limiting groove; 8. Slide groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] like Figure 1 and Figure 2As shown, it includes a shell 1, and a clamping structure 3 is respectively provided on the top and bottom sides of the shell 1, and two groups of driving structures 2 are respectively provided on the separated sides of the two clamping structures 3, wherein a fireproof plate 4 is provided at the bottom of one clamping structure 3, and a support plate 5 is provided on the top of the other clamping structure 3, the fireproof plate 4 is fixedly connected to the inner wall of the shell 1, the support plate 5 is fixedly connected to the inner wall of the shell 1, and the top of the support plate 5 is fixedly connected to an insulating pad, four limiting grooves 7 are symmetrically provided on both sides of the center of the fireproof plate 4 and the support plate 5, and sliding grooves 8 are respectively provided on both sides of the inner sides of the four limiting grooves 7, and the shape of the four limiting grooves 7 is arc-shaped, and two groups of two clamping structures 3 are symmetrically provided with the mid-vertical line of the shell 1, and the two groups of clamping structures 3 are connected to the same driving structure 2.

[0026] like Figure 3 and Figure 4 As shown, the driving structure 2 includes a rotating shaft 201, a rotating disk 202, a worm wheel 203 and a worm 204. The bottom of the rotating shaft 201 is fixedly connected to two worm wheels 203. The top of the rotating shaft 201 passes through the housing 1 and is connected to the rotating disk 202. A fixing structure is provided between the rotating disk 202 and the housing 1. One side of the two worm wheels 203 is respectively meshed and connected to the worm 204. The fixing structure includes an insert rod 205. The outer walls of the rotating disk 202 and the housing 1 are provided with a plurality of matching slots 6. The insert rod 205 fixes the rotating disk 202 and the housing 1, the threads of the two worms 204 are opposite, the two ends of the two worms 204 are movably connected to the inner wall of the housing 1, the bottom end of the bottom rotating shaft 201 is movably connected to the fireproof plate 4, and the top end of the top rotating shaft 201 is movably connected to the support plate 5. Each set of clamping structures 3 includes a transmission shaft 301, a transmission sleeve 302, a worm gear 2 303, a worm gear 3 304, a connecting rod 1 305, a connecting rod 2 306 and a clamping column 307. The outer wall of the transmission shaft 301 is sleeved with the transmission sleeve 302, and the top end of the transmission shaft 301 is fixedly connected to the worm gear 3 304. The top of the transmission sleeve 302 is fixedly connected to the worm gear 2 303, the two sides of the bottom outer wall of the transmission shaft 301 are respectively fixedly connected to the connecting rod 1 305, the two sides of the bottom outer wall of the transmission sleeve 302 are respectively fixedly connected to the connecting rod 2 306, the bottom of the two connecting rods 1 305 away from the transmission shaft 301 are respectively fixedly connected to the clamping column 307, the bottom of the two connecting rods 2 306 away from the transmission sleeve 302 are respectively fixedly connected to the clamping column 307, one end of the four clamping columns 307 passes through the limiting groove 7 and is sleeved with the insulating sleeve 309, and the four clamping The two sides of the bottom of the tightening column 307 are fixedly connected with the sliders 308, the four clamping columns 307 are respectively adapted to be connected with the limit grooves 7, the eight sliders 308 are respectively adapted to be connected with the slide grooves 8, the bottom end of the top transmission shaft 301 is movably connected with the fireproof plate 4, and the top end of the bottom transmission shaft 301 is movably connected with the support plate 5. The copper busbar is placed side by side in the middle of the support plate 5 and the fireproof plate 4, and then the clamping structure 3 is driven by the driving structure 2 to clamp the copper busbar, so that it is suitable for the clamping work of copper buses of different thicknesses, thereby increasing the applicability of the bus duct.

[0027] like Figure 5 As shown, the fireproof plate 4 includes a transverse plate 401, an inner cavity 402 and a heat shrink film 403. The interior of the transverse plate 401 is provided with a number of equidistant inner cavities 402. The bottom of the transverse plate 401 is fixedly connected to the heat shrink film 403. The interiors of the several inner cavities 402 are respectively filled with flame retardant powder. When a fire occurs somewhere inside the shell 1 due to a short circuit, the temperature therein rises, causing the heat shrink film 403 on the top thereof to shrink due to the heat and leak out of the inner cavity 402, causing the flame retardant powder inside the inner cavity 402 to fall, extinguishing the fire source at that place, thereby avoiding causing a fire and increasing the safety of the bus duct. The internal temperature of the bus duct during normal operation is approximately 70°C, and the heat shrinkage temperature of the heat shrink film 403 is generally between 70°C and 110°C, and the heat shrink film 403 has good insulation properties.

[0028] In specific use, refer to Figures 1 to 5 As shown, firstly, the copper bars are vertically arranged side by side in the middle of the support plate 5 and the fireproof plate 4, and the plug rods 205 are pulled out respectively, and the rotating disk 202 is rotated by the plug rod 205, and the rotating disk 202 drives the rotating shaft 201 to rotate, and the rotating shaft 201 drives the two worm gears 1 203 to rotate, and the two worm gears 1 203 are respectively meshed and connected with the worm 204, and the two sides of the two worm gears 204 away from the worm gear 1 203 are respectively meshed and connected with the worm gear 2 303 and the worm gear 3 304, because the thread directions of the two worm gears 204 are opposite, the worm gear 2 303 and the worm gear 3 304 are driven to rotate in opposite directions, and the worm gear 2 303 drives the connecting rods on both sides of the transmission sleeve 302 to rotate. The connecting rod 2 306 rotates, and the connecting rod 1 305 on both sides of the transmission shaft 301 is driven to rotate through the worm gear 304, and the single copper busbar is clamped by the clamping columns 307 of the connecting rod 1 305 and the connecting rod 2 306, and then the insertion rod 205 is inserted into the slot 6 to complete the clamping fixation, which not only increases the stability of the bus duct fixing the copper busbar, but also can be suitable for clamping copper busbars of different thicknesses. When a fire occurs somewhere inside the shell 1 due to a short circuit, the temperature therein rises, causing the heat shrink film 403 on the top thereof to shrink due to the heat and leak out of the internal cavity 402, causing the flame retardant powder inside the cavity 402 to fall off, and extinguish the fire source at that place, thereby avoiding causing a fire.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A solid bus duct, characterized in that: The invention comprises a shell (1), wherein the top and bottom sides of the shell (1) are respectively provided with clamping structures (3), and the top side of the clamping structure (3) is provided with a driving structure (2), wherein the bottom of one of the clamping structures (3) is provided with a fireproof plate (4), and the top of the other clamping structure (3) is provided with a support plate (5), and four limiting grooves (7) are symmetrically provided on both sides of the center of the fireproof plate (4) and the support plate (5), and sliding grooves (8) are respectively provided on both sides of the inside of the four limiting grooves (7); The fireproof board (4) comprises a transverse board (401), an inner cavity (402) and a heat shrink film (403); a plurality of equidistant inner cavities (402) are arranged inside the transverse board (401); and the bottom of the transverse board (401) is fixedly connected to the heat shrink film (403).

2. A solid bus duct according to claim 1, characterized in that: The interiors of the plurality of inner cavities (402) are respectively filled with flame retardant powder, the four limiting grooves (7) are arc-shaped, and the clamping structures (3) are symmetrically provided in two groups with respect to the perpendicular midline of the housing (1).

3. The strong bus duct according to claim 1, characterized in that: The driving structure (2) comprises a rotating shaft (201), a rotating disk (202), a worm wheel (203) and a worm (204); the bottom of the rotating shaft (201) is fixedly connected to two worm wheels (203); the top of the rotating shaft (201) passes through the housing (1) and is connected to the rotating disk (202); a fixing structure is provided between the rotating disk (202) and the housing (1); one side of the two worm wheels (203) are respectively meshed and connected to the worm (204).

4. A strong bus duct according to claim 3, characterized in that: The fixing structure comprises an insertion rod (205), and the outer walls of the rotating disk (202) and the shell (1) are provided with a plurality of matching slots (6), and the insertion rod (205) fixes the rotating disk (202) and the shell (1).

5. The strong bus duct according to claim 3 is characterized in that: The threads of the two worms (204) are opposite to each other, and the two ends of the two worms (204) are movably connected to the inner wall of the housing (1).

6. The strong bus duct according to claim 1, characterized in that: The clamping structure (3) comprises a transmission shaft (301), a transmission sleeve (302), a worm gear 2 (303), a worm gear 3 (304), a connecting rod 1 (305), a connecting rod 2 (306) and a clamping column (307); the outer wall of the transmission shaft (301) is sleeved with the transmission sleeve (302); the top of the transmission shaft (301) is fixedly connected to the worm gear 3 (304); the top of the transmission sleeve (302) is fixedly connected to the worm gear 2 (303); the two sides of the bottom outer wall of the transmission shaft (301) are respectively fixedly connected to the connecting rod 1 (305); the two sides of the bottom outer wall of the transmission sleeve (302) are respectively fixedly connected to the connecting rod 2 (306); the bottoms of the two connecting rods 1 (305) at one end away from the transmission shaft (301) are respectively fixedly connected to the clamping column (307); the bottoms of the two connecting rods 2 (306) at one end away from the transmission sleeve (302) are respectively fixedly connected to the clamping column (307).

7. The strong bus duct according to claim 1, characterized in that: One end of the four clamping columns (307) passes through the limiting groove (7) and is sleeved with the insulating sleeve (309), the bottom sides of the four clamping columns (307) are fixedly connected to the sliders (308), the four clamping columns (307) are respectively adapted to be connected with the limiting groove (7), the eight sliders (308) are respectively adapted to be connected with the slide groove (8), the worm gear 2 (303) is meshedly connected with one of the worms (204), and the worm gear 3 (304) is meshedly connected with the other worm (204).

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