High-safety cable bridge for nuclear power system

Abstract

The utility model relates to the technical field of cable bridges, and discloses a high-safety cable bridge for a nuclear power system, which solves the problem of poor heat dissipation effect of the existing cable bridge, and comprises a shell, a cover plate is arranged at the top of the shell, a grid plate is fixedly mounted in the shell, and a bottom box is fixedly mounted at the bottom of the shell. A heat dissipation mechanism is arranged in the shell, and a dustproof mechanism is arranged in the bottom box; through cooperation of the bottom box, the motor, the transmission shaft, the fan blades, the hard pipe and the flexible pipe, external air can be extracted to enter the air box and exhausted from the exhaust holes, heat dissipation is conducted on the interior of the shell, through cooperation of the conveying belt and the supporting shaft as well as cooperation of the top disc and the movable rod, the U-shaped plate can slide along the two inner rods conveniently, and the heat dissipation efficiency is improved. And then the air bellow can reciprocate in the shell, so that uniform heat dissipation in the shell is facilitated, and the safety of the whole cable bridge in a nuclear power system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable bridges, in particular to a high-safety cable bridge used in a nuclear power system. Background Art

[0002] The cable tray for nuclear power system is a device specially designed to carry, protect and organize the cables in the nuclear power system. A large amount of heat will be generated during the operation of the nuclear power system, so the cable tray needs to be cooled to prevent the cables from being damaged due to overheating and to improve the safety of the cable tray. According to the patent document entitled "A Cable Tray" with the authorization announcement number of CN220358721U, it includes a bottom plate, a heat dissipation hole is provided at the upper end of the bottom plate, a fixing seat is fixedly installed on the outer side of the bottom plate, a circular hole is provided at the upper end of the fixing seat, a side plate is fixedly installed at the upper end of the bottom plate, and the side plate A plug plate 1 is fixedly installed at the front end, a round hole 2 is opened on the outer side of the plug plate 1, a plug plate 2 is fixedly installed on the rear side of the side plate, a round hole 3 is opened on the outer side of the plug plate 2, a fixing plate is fixedly installed on the upper end of the side plate, a threaded nut is arranged at the lower end of the fixing plate, a connecting shaft is fixedly installed on the upper end of the side plate, a cover plate is fixedly installed on the upper end of the connecting shaft, a connecting plate is fixedly installed on the outer side of the cover plate, a locking bolt is arranged on the upper end of the connecting plate, a dustproof plate is fixedly installed on the lower end of the bottom plate, and a fireproof layer is arranged inside the bottom plate, the side plate and the cover plate; but the following defects still exist:

[0003] It only has heat dissipation holes on the bottom plate to dissipate the heat of the cable tray naturally, which results in poor heat dissipation effect and easily affects the safety of the cable tray used in the nuclear power system. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-safety cable tray for a nuclear power system, which effectively solves the problem of poor heat dissipation effect of the current cable tray.

[0005] To achieve the above object, the utility model provides the following technical solutions: a high-safety cable tray for a nuclear power system, comprising a shell, a cover plate is provided on the top of the shell, a grid plate is fixedly installed inside the shell, a bottom box is fixedly installed on the bottom of the shell, a heat dissipation mechanism is provided inside the shell, and a dustproof mechanism is provided inside the bottom box;

[0006] The heat dissipation mechanism includes a bellows movably installed in the shell, the bellows is located below the grid plate, a plurality of exhaust holes are evenly arranged on the top of the bellows, a U-shaped plate is fixedly installed on the bottom of the bellows, two inner rods are symmetrically fixedly connected to the inside of the shell, the U-shaped plate is movably sleeved on the outside of the two inner rods, two hard tubes are symmetrically fixedly connected to the inner bottom wall of the shell, hoses are fixedly connected between the two hard tubes and the bellows, and the bellows is connected to the bottom box.

[0007] Preferably, an L-shaped plate is fixedly installed inside the bottom box. A support shaft is rotatably connected to the top of the L-shaped plate. The top end of the support shaft extends into the shell and is fixedly installed with a top plate. A movable rod is rotatably connected to the top of the top plate. One end of the movable rod away from the top plate is rotatably connected to the U-shaped plate.

[0008] Preferably, a motor is fixedly installed on the inner bottom wall of the bottom box. A transmission shaft is fixedly connected to the motor. A fan blade is fixedly installed at the top end of the transmission shaft. A conveyor belt is drivingly connected between the transmission shaft and the support shaft.

[0009] Preferably, the dust-proof mechanism includes a wind frame fixed on the inner bottom wall of the bottom box. The wind frame communicates with the outside of the bottom box. A dust-proof plate is movably installed inside the wind frame. Two guide columns are symmetrically and fixedly connected between the wind frame and the L-shaped plate. The same guide plate is movably sleeved on the outer sides of the two guide columns. Two connecting columns are symmetrically and fixedly connected between the guide plate and the dust-proof plate. Two springs are symmetrically and fixedly connected between the guide plate and the L-shaped plate. The two springs are respectively sleeved on the outer sides of the two guide columns.

[0010] Preferably, a rotating shaft is rotatably connected inside the bottom box. An eccentric block is fixedly sleeved on the outer side of the rotating shaft above the guide plate.

[0011] Preferably, one end of the rotating shaft penetrates through the L-shaped plate and is fixedly installed with a second bevel gear. The rotating shaft is rotatably connected to the L-shaped plate. A first bevel gear is fixedly installed on the outer side of the transmission shaft. The first bevel gear is meshed with the second bevel gear.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] (1) In the present utility model, through the cooperation among the bottom box, the motor, the transmission shaft, the fan blade, the hard pipe and the flexible pipe, the outside air can be extracted into the air box and discharged from each exhaust hole, so as to dissipate heat from the inside of the shell. And through the cooperation among the conveyor belt, the support shaft, the top plate and the movable rod, it is convenient for the U-shaped plate to slide along the two inner rods, and then the air box can reciprocate inside the shell, so as to facilitate uniform heat dissipation inside the shell and improve the safety of the whole cable tray in the nuclear power system;

[0014] (2) In this new type, by arranging the dust-proof plate in the wind frame, it is convenient to filter the gas entering the shell. And through the cooperation among the motor, the transmission shaft, the first bevel gear and the second bevel gear, it is convenient for the rotating shaft to drive the eccentric block to rotate and impact the guide plate. And through the cooperation among the guide plate, the guide column, the spring and the connecting column, it is convenient for the dust-proof plate to move up and down in the wind frame, so as to prevent the dust-proof plate from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0016] In the accompanying drawings:

[0017] Figure 1 It is a schematic structural diagram of the high - safety cable tray for the nuclear power system of the present utility model;

[0018] Figure 2 It is a schematic cross - sectional structural diagram of the bottom box of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the heat - dissipation mechanism of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the top plate of the present utility model;

[0021] Figure 5 It is a schematic structural diagram of the dust - proof mechanism of the present utility model.

[0022] In the figure: 1. Shell; 2. Heat - dissipation mechanism; 201. Air box; 202. Exhaust hole; 203. Top plate; 204. Support shaft; 205. L - shaped plate; 206. Conveyor belt; 207. Fan blade; 208. Motor; 209. Transmission shaft; 2010. Hard pipe; 2011. Flexible pipe; 2012. Movable rod; 2013. U - shaped plate; 2014. Inner rod; 3. Dust - proof mechanism; 301. Air frame; 302. Bevel gear 1; 303. Bevel gear 2; 304. Spring; 305. Eccentric block; 306. Rotating shaft; 307. Guide plate; 308. Dust - proof plate; 309. Connecting column; 3010. Guide post; 4. Bottom box; 5. Cover plate; 6. Grid plate. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] Embodiment 1, given by Figure 1-2 The present utility model includes a shell 1. A cover plate 5 is provided at the top of the shell 1. A grid plate 6 is fixedly installed inside the shell 1. Cables can be placed on the top of the grid plate 6 for support and fixation. A bottom box 4 is fixedly installed at the bottom of the shell 1. A heat - dissipation mechanism 2 is provided inside the shell 1. A dust - proof mechanism 3 is provided inside the bottom box 4.

[0025] Specifically, by Figure 3-4 The heat dissipation mechanism 2 includes a bellows 201 movably mounted in the housing 1, the bellows 201 is located below the grid plate 6, a plurality of exhaust holes 202 are evenly arranged on the top of the bellows 201, a U-shaped plate 2013 is fixedly mounted on the bottom of the bellows 201, two inner rods 2014 are symmetrically fixedly connected to the inside of the housing 1, the U-shaped plate 2013 is movably sleeved on the outside of the two inner rods 2014, two hard tubes 2010 are symmetrically fixedly connected to the inner bottom wall of the housing 1, a hose 2011 is fixedly connected between the two hard tubes 2010 and the bellows 201, and the bellows 201 is connected to the bottom box 4, the bottom box 4 An L-shaped plate 205 is fixedly installed inside, and the top of the L-shaped plate 205 is rotatably connected to a support shaft 204. The top of the support shaft 204 extends into the shell 1 and is fixedly installed with a top plate 203. The top of the top plate 203 is rotatably connected to a movable rod 2012. The end of the movable rod 2012 away from the top plate 203 is rotatably connected to the U-shaped plate 2013. A motor 208 is fixedly installed on the inner bottom wall of the bottom box 4. A transmission shaft 209 is fixedly connected to the motor 208. A fan blade 207 is fixedly installed on the top of the transmission shaft 209. A conveyor belt 206 is transmission-connected between the transmission shaft 209 and the support shaft 204.

[0026] When in use, first start the motor 208 to drive the transmission shaft 209 to rotate, and drive the fan blades 207 to rotate to draw external gas into the bottom box 4. At the same time, the gas passes through two hard tubes 2010 and two soft tubes 2011 into the bellows 201 and is discharged from each exhaust hole 202 to achieve heat dissipation in the shell 1. When the transmission shaft 209 rotates, the support shaft 204 is driven to rotate through the conveyor belt 206, and the top plate 203 is driven to rotate, and then the U-shaped plate 2013 is driven to slide along the two inner rods 2014 through the movable rod 2012. At the same time, the bellows 201 reciprocates in the shell 1 to achieve uniform heat dissipation in the shell 1, and finally improve the safety of the entire cable tray in the nuclear power system.

[0027] Specifically, by Figure 5Given that, the dust-proof mechanism 3 includes an air frame 301 fixed to the inner bottom wall of the bottom box 4. The air frame 301 is in communication with the outside of the bottom box 4. A dust-proof plate 308 is movably installed inside the air frame 301. Two guide columns 3010 are symmetrically and fixedly connected between the air frame 301 and the L-shaped plate 205. The same guide plate 307 is movably sleeved on the outer sides of the two guide columns 3010. Two connecting columns 309 are symmetrically and fixedly connected between the guide plate 307 and the dust-proof plate 308. Two springs 304 are symmetrically and fixedly connected between the guide plate 307 and the L-shaped plate 205. The two springs 304 are respectively sleeved on the outer sides of the two guide columns 3010. A rotating shaft 306 is rotatably connected inside the bottom box 4. An eccentric block 305 located above the guide plate 307 is fixedly sleeved on the outer side of the rotating shaft 306. One end of the rotating shaft 306 penetrates through the L-shaped plate 205 and is fixedly installed with a second bevel gear 303. And the rotating shaft 306 is rotatably connected with the L-shaped plate 205. A first bevel gear 302 is fixedly installed on the outer side of the transmission shaft 209. The first bevel gear 302 is meshed and connected with the second bevel gear 303;

[0028] In the use state, first, a dust-proof plate 308 is arranged in the air frame 301 to filter the gas entering the housing 1. When the transmission shaft 209 rotates, it drives the first bevel gear 302 to rotate. Since the first bevel gear 302 is meshed and connected with the second bevel gear 303, it drives the rotating shaft 306 to rotate and drives the eccentric block 305 to rotate to impact the guide plate 307. At the same time, under the action of the elastic force of the two springs 304, the dust-proof plate 308 moves up and down in the air frame 301, and finally prevents the dust-proof plate 308 from being blocked.

Claims

1. A high-safety cable tray for a nuclear power system, comprising a housing (1), characterized in that: The top of the shell (1) is provided with a cover plate (5), the interior of the shell (1) is fixedly provided with a grid plate (6), the bottom of the shell (1) is fixedly provided with a bottom box (4), the interior of the shell (1) is provided with a heat dissipation mechanism (2), and the interior of the bottom box (4) is provided with a dustproof mechanism (3); The heat dissipation mechanism (2) comprises a bellows (201) movably mounted in the shell (1), the bellows (201) being located below the grid plate (6), a plurality of exhaust holes (202) being evenly arranged on the top of the bellows (201), a U-shaped plate (2013) being fixedly mounted on the bottom of the bellows (201), two inner rods (2014) being symmetrically fixedly connected to the inside of the shell (1), the U-shaped plate (2013) being movably sleeved on the outside of the two inner rods (2014), two hard tubes (2010) being symmetrically fixedly connected to the inner bottom wall of the shell (1), a hose (2011) being fixedly connected between the two hard tubes (2010) and the bellows (201), and the bellows (201) being connected to the bottom box (4).

2. A high-safety cable tray for a nuclear power system according to claim 1, characterized in that: An L-shaped plate (205) is fixedly installed inside the bottom box (4); the top of the L-shaped plate (205) is rotatably connected to a support shaft (204); the top end of the support shaft (204) extends into the shell (1) and is fixedly installed with a top plate (203); the top of the top plate (203) is rotatably connected to a movable rod (2012); and one end of the movable rod (2012) away from the top plate (203) is rotatably connected to the U-shaped plate (2013).

3. The high-safety cable tray for a nuclear power system according to claim 1, characterized in that: A motor (208) is fixedly mounted on the inner bottom wall of the bottom box (4), a transmission shaft (209) is fixedly connected to the motor (208), a fan blade (207) is fixedly mounted on the top end of the transmission shaft (209), and a conveyor belt (206) is transmission-connected between the transmission shaft (209) and the support shaft (204).

4. A high-safety cable tray for a nuclear power system according to claim 1, characterized in that: The dustproof mechanism (3) comprises a wind frame (301) fixed on the inner bottom wall of the bottom box (4); the wind frame (301) is connected to the outside of the bottom box (4); a dustproof plate (308) is movably installed inside the wind frame (301); two guide columns (3010) are symmetrically fixedly connected between the wind frame (301) and the L-shaped plate (205); the outer sides of the two guide columns (3010) are movably sleeved with the same guide plate (307); two connecting columns (309) are symmetrically fixedly connected between the guide plate (307) and the dustproof plate (308); two springs (304) are symmetrically fixedly connected between the guide plate (307) and the L-shaped plate (205); and the two springs (304) are sleeved on the outer sides of the two guide columns (3010) respectively.

5. The high-safety cable tray for a nuclear power system according to claim 1, characterized in that: A rotating shaft (306) is rotatably connected inside the bottom box (4), and an eccentric block (305) located above the guide plate (307) is fixedly sleeved on the outer side of the rotating shaft (306).

6. A high-safety cable tray for a nuclear power system according to claim 5, characterized in that: One end of the rotating shaft (306) passes through the L-shaped plate (205) and is fixedly mounted with a bevel gear 2 (303), and the rotating shaft (306) is rotationally connected to the L-shaped plate (205), and a bevel gear 1 (302) is fixedly mounted on the outer side of the transmission shaft (209), and the bevel gear 1 (302) is meshedly connected with the bevel gear 2 (303).

Images