Power distribution device for railway equipment

Abstract

The utility model provides a power distribution device for railway equipment, including a box body and a dust removal device; an air inlet is provided on the box body, and a first dust-proof net is provided at the air inlet; the dust removal device includes a cleaning brush located outside the box body, a driving mechanism provided in the box body, and a connecting frame connecting the cleaning brush and the driving mechanism; a connecting frame is provided on the driving end of the driving mechanism, and one end of the connecting frame can pass through the box body and be connected to the cleaning brush; the driving mechanism can drive the cleaning brush to move along the width direction of the first dust-proof net, so that the cleaning brush removes the sand and dust on the first dust-proof net; an air outlet is provided on the box body, and a heat dissipation fan is provided at the air outlet. The power distribution device for railway equipment described in the utility model removes the sand and dust on the first dust-proof net by setting the driving mechanism and the cleaning brush, thereby cleaning the dust-proof net and improving the heat dissipation effect of the power distribution device.

Description

Technical Field

[0001] The utility model relates to the technical field of railway equipment, in particular to a power distribution device for railway equipment. Background Art

[0002] With the continuous advancement of my country's economic development and infrastructure construction, the construction volume of my country's railways has continued to increase. Various supporting railway power equipment are distributed on each railway section, and power supply is required to ensure the normal operation of the railway system. Generally speaking, the power distribution device includes electrical components such as circuit breakers, relays and controllers for each railway equipment, as well as a box for installing the above-mentioned power distribution components. It has the characteristics of small size and convenient installation, so that the power distribution device can be installed along the railway to supply power to various equipment in the railway section.

[0003] Among them, the electrical components in the power distribution device box emit a large amount of heat during long-term operation, causing high temperature accumulation in the box, which in turn causes damage to the electrical components, seriously affecting the service life of the power distribution device. The box of a general power distribution device is usually provided with a heat dissipation opening, or an air inlet and an air outlet to ventilate the box to ensure that the air flow can enter the box to take away the heat of the electrical components, so as to ensure the normal operation of the power distribution device. When encountering a windy and sandy environment, or when the power distribution device is used for a long time, sand and dust enter the inside of the power distribution device through the opening on the box and adhere to the electrical components. The long-term accumulation of sand and dust on the inner wall of the power distribution device will affect the heat dissipation and normal operation of its electrical components.

[0004] In the prior art, dust screens are installed at the air inlet and outlet of the power distribution device to prevent dust from entering the power distribution device. However, since most railway sections are located in relatively open fields with strong winds and sand, the dust screens will absorb a large amount of dust after long-term use, affecting the heat dissipation of the power distribution device. Utility Model Content

[0005] In view of this, the utility model aims to provide a power distribution device for railway equipment, which can clean the dustproof net and improve the heat dissipation effect of the power distribution device.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A power distribution device for railway equipment comprises a box body and a dust removal device; an air inlet is provided on the box body, and a first dust-proof net is provided at the air inlet; the dust removal device comprises a cleaning brush located outside the box body, a driving mechanism provided in the box body, and a connecting frame connecting the cleaning brush and the driving mechanism; the connecting frame is provided on the driving end of the driving mechanism, one end of the connecting frame can pass through the box body and be connected to the cleaning brush; the driving mechanism can drive the cleaning brush to move along the width direction of the first dust-proof net, so that the cleaning brush removes the sand and dust on the first dust-proof net; an air outlet is provided on the box body, and a cooling fan is provided at the air outlet.

[0008] Furthermore, the driving mechanism includes a screw rod disposed in the box body, a slider screwed to the screw rod, and a first motor for driving the screw rod to rotate; the first motor can drive the screw rod to drive the slider to move along the width direction of the first dustproof net, and the slider is connected to the connecting frame.

[0009] Furthermore, the cleaning brush includes a rotating shaft rotatably connected to the connecting frame, and bristles arranged on the outer peripheral surface of the rotating shaft; the connecting frame is provided with a second motor for driving the cleaning brush to rotate.

[0010] Furthermore, a slot is provided near the air inlet for the connection frame to move.

[0011] Furthermore, two sealing strips arranged opposite to each other are provided in the groove, and the sealing strips are arranged along the length direction of the groove; the two sealing strips can block at least part of the groove, and the end of the connecting frame can extend out of the box body through between the two sealing strips.

[0012] Furthermore, a mask is provided at the slot, and the mask can cover the slot and the connecting frame, and an opening for the cleaning brush to pass through is provided on one side of the mask.

[0013] Furthermore, a retaining frame is provided at the air inlet, and the air inlet and the shield are both located in the retaining frame.

[0014] Furthermore, the air inlet is arranged at the bottom of the box; the air outlet is arranged at the upper part of the box, and a second dustproof net is arranged at the air outlet.

[0015] Furthermore, the top of the box body is provided with an inclined rain shield.

[0016] Furthermore, the box body is provided with a side opening, the box body is hinged with a door capable of opening and closing the side opening, and the door is provided with an observation window.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The power distribution device for railway equipment described in the utility model, through the arrangement of a driving mechanism and a cleaning brush, enables the driving mechanism to drive the cleaning brush to move through a connecting frame to remove sand and dust on the first dustproof net, thereby cleaning the dustproof net and improving the heat dissipation effect of the power distribution device.

[0019] The driving mechanism is composed of a screw rod and a slider structure, and the first motor drives the screw rod to rotate to move the slider. The driving mechanism has a simple and reliable structure, can effectively drive the connecting frame to move, and drive the cleaning brush to clean the first dustproof net.

[0020] The cleaning brush includes a rotating shaft rotatably arranged on the connecting frame and bristles on the rotating shaft. The rotating shaft is driven to rotate by a second motor on the connecting frame, so that the cleaning brush rotates and cleans the first dustproof net, thereby improving the cleaning effect and cleaning effect of the first dustproof net.

[0021] The slot near the air inlet enables the connecting frame to pass through the box and move along the slot. The slot has a smaller opening size, which prevents dust from entering the box through the slot while ensuring the connecting frame passes through, further improving the effect of blocking dust.

[0022] Two sealing strips arranged opposite to each other are provided in the groove, which can block part of the groove, and the connecting frame can pass through between the two sealing strips. Therefore, when the connecting frame moves, the sealing strip can seal the gap between the groove and the connecting frame to a certain extent to prevent sand and dust from entering the box through the groove.

[0023] A cover is provided at the slot, which can cover the slot and the connecting frame to further cover the slot and the connecting frame to prevent sand and dust from entering the box. At the same time, the cover can also prevent the sand and stones carried by the strong wind from damaging the second motor and the connecting frame to a certain extent in a strong wind environment, thereby increasing the service life of the distribution device.

[0024] A blocking frame is also provided at the air inlet. Since the power distribution device is located in the wild, the blocking frame can prevent wild animals in the wild from damaging the first dustproof net, cleaning brush and other structures, thereby improving the protection performance of the power distribution device.

[0025] The air inlet on the box is arranged at the bottom of the box to prevent rain from entering the air inlet in rainy weather, and the air outlet is arranged at the upper part of the box to facilitate the air flow in the box, so that the hot air heated by the electrical components in the box is discharged upward, and the second dustproof net at the air outlet can also prevent dust from entering or insects from the wild from entering the box to a certain extent. In addition, an inclined rain shield is arranged on the top of the box, which can prevent rain from entering the air outlet to a certain extent.

[0026] The box body is provided with a hatch, and the hatch is provided with an observation window, so that the railway inspection personnel can check whether the electrical components of the distribution device are working properly, thereby facilitating the implementation of maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the power distribution device for railway equipment according to an embodiment of the utility model;

[0029] Figure 2 An exploded view of a power distribution device for railway equipment according to an embodiment of the utility model;

[0030] Figure 3 For the utility model embodiment Figure 2 A magnified view of the position shown in middle A;

[0031] Figure 4 An exploded view of a power distribution device for railway equipment according to an embodiment of the utility model from a bottom-up perspective;

[0032] Figure 5 For the utility model embodiment Figure 4 A magnified view of the position shown in middle A;

[0033] Figure 6 An exploded view of a power distribution device for railway equipment according to an embodiment of the utility model from a top view;

[0034] Figure 7 For the utility model embodiment Figure 6 A magnified view of the position shown in middle A;

[0035] Figure 8 A side view of a power distribution device for railway equipment according to an embodiment of the utility model;

[0036] Fig. 9 For the utility model embodiment Figure 8 A cross-sectional view at the position indicated by AA;

[0037] Fig.10 For the utility model embodiment Fig. 9 A magnified view of the position shown in middle A;

[0038] Fig.11 For the utility model embodiment Fig. 9 A magnified view of the position shown in B;

[0039] Description of reference numerals:

[0040] 1. Box body; 2. Cleaning brush; 3. Driving mechanism; 4. Connecting frame; 5. Shield; 6. Guard frame; 7. Rain shield; 8. Hatch door;

[0041] 11. Air inlet; 12. First dust screen; 13. Air outlet; 14. Cooling fan; 15. Slot; 16. Sealing strip; 17. Second dust screen;

[0042] 21. rotating shaft; 22. bristles;

[0043] 31. Screw rod; 32. Sliding block; 33. First motor; 34. Frame; 35. Guide protrusion;

[0044] 41. Second motor;

[0045] 81. Observation window; 82. Lock. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] The present embodiment relates to a power distribution device for railway equipment, which is used to distribute power to various electrical equipment on a railway section. In terms of overall structure, the power distribution device of the present embodiment includes a box body 1 and a dust removal device.

[0051] Among them, Figure 1, Figure 2 and Figure 3 As shown, the box body 1 is provided with an air inlet 11, and a first dust-proof net 12 is provided at the air inlet 11. Specifically, the periphery of the first dust-proof net 12 forms a mounting portion in a frame structure, and the mounting portion is provided with a plurality of mounting holes, which can correspond to the mounting holes on the box body 1, so that the first dust-proof net 12 can be screwed to the box body 1, which is convenient for railway inspection personnel to maintain the power distribution device. And the first dust-proof net 12 is arranged inside the box body 1, which can prevent the first dust-proof net 12 from falling off and causing the function of the power distribution device to be destroyed. In the specific implementation, the box body 1 is provided with a plurality of electrical components for supplying power to various railway electrical equipment, and the box body 1 can be formed by welding with a stainless steel plate or a galvanized steel plate, which has good structural strength and corrosion resistance, and can improve the service life of the power distribution device of this embodiment.

[0052] In addition, the dust removal device of this embodiment includes a cleaning brush 2 located outside the box body 1, a driving mechanism 3 arranged in the box body 1, and a connecting frame 4 connecting the cleaning brush 2 and the driving mechanism 3. The connecting frame 4 is provided on the driving end of the driving mechanism 3, and the connecting frame 4 can pass through the box body 1 and be connected to the cleaning brush 2. As a result, the driving mechanism 3 can drive the cleaning brush 2 to move along the width direction of the first dustproof net 12 through the connecting frame 4, so that the cleaning brush 2 removes the sand and dust on the first dustproof net 12. In a specific implementation, the driving mechanism 3 and the connecting frame 4 are provided at both ends of the cleaning brush 2.

[0053] In addition, the housing 1 is provided with an air outlet 13, and a heat dissipation fan 14 is provided at the air outlet 13. When the heat dissipation fan 14 is working, the air in the housing 1 is discharged through the air outlet 13. In a specific implementation, the heat dissipation fan 14 includes a shell connected to the air outlet 13, and a centrifugal fan arranged in the shell. The shell has an opening on one side facing the inside of the housing 1, so that air can enter the shell through the opening and be driven by the centrifugal fan to be discharged.

[0054] As described above, the power distribution device for railway equipment of this embodiment, through the arrangement of the driving mechanism 3 and the cleaning brush 2, enables the driving mechanism 3 to drive the cleaning brush 2 to move through the connecting frame 4 to remove the sand and dust on the first dustproof net 12, thereby cleaning the dustproof net and improving the heat dissipation effect of the power distribution device. In addition, the driving mechanism 3 is arranged in the box body 1, which can prevent the sand and dust and rain from damaging the driving mechanism 3, thereby improving the reliability and service life of the dust removal device.

[0055] Based on the above overall introduction, specifically, Figure 3As shown, the driving mechanism 3 of this embodiment includes a screw rod 31 disposed in the housing 1, a slider 32 screwed on the screw rod 31, and a first motor 33 for driving the screw rod 31 to rotate. The first motor 33 can drive the screw rod 31 to drive the slider 32 to move along the width direction of the first dustproof net 12, and the connecting frame 4 is disposed on the slider 32, so that when the first motor 33 rotates, it can drive the cleaning brush 2 to move along the width direction of the first dustproof net 12. Through the arrangement of the screw rod 31, the screw connection and the first motor 33, the driving mechanism 3 has a simple structure and good reliability.

[0056] In a specific implementation, the driving mechanism 3 further includes a frame 34, which is fixed to the inner wall of the box body 1, and the screw rod 31 is rotatably arranged on the frame 34, and one end of the frame 34 is connected to the first motor 33. The bottom surface of the slider 32 abuts against the frame 34, and a guide protrusion 35 is provided on the end of the frame 34, and the slider 32 can be driven to move along the guide protrusion 35 by the screw rod 31.

[0057] In order to improve the cleaning efficiency and cleaning effect of the cleaning brush 2 on the first dust removal net, Figure 4 and Figure 5 As shown, the cleaning brush 2 of this embodiment includes a rotating shaft 21 rotatably connected to the connecting frame 4, and bristles 22 are provided on the outer peripheral surface of the rotating shaft 21, and a second motor 41 is also provided on the connecting frame 4. When the second motor 41 is started, the output shaft of the second motor 41 can drive the cleaning brush 2 to rotate, so that the bristles 22 on the rotating shaft 21 can quickly peel off the sand and dust on the first dustproof net 12, thereby improving the cleaning effect and cleaning efficiency of the first dustproof net 12. In a specific implementation, the bristles 22 can be made of PBT or PET material, so that the bristles 22 have good resilience and wear resistance, thereby improving the use effect of the cleaning brush 2 and extending the service life of the cleaning brush 2.

[0058] In order to allow the connecting frame 4 to pass through the box body 1 and move along the width direction of the first dustproof net 12, as shown in FIG. Figure 3 , Figure 6 and Figure 7 As shown, a slot 15 for the connecting frame 4 to move is provided near the air inlet 11 of this embodiment. Specifically, the slot 15 is arranged along the width direction of the first dustproof net 12, and one end of the connecting frame 4 can pass through the slot 15 and extend to the outside of the box body 1.

[0059] Since the connecting frame 4 needs to move along the slot 15, a dust screen or other structure cannot be provided at the slot 15. In order to prevent dust from entering the box body 1 through the slot 15, Figure 3 , Figure 7 and Fig.11As shown, in this embodiment, two sealing strips 16 are arranged opposite to each other in the slot 15, and the sealing strips 16 are arranged along the length direction of the slot 15, so that the two sealing strips 16 can block at least part of the slot 15. In addition, the end of the connecting frame 4 can extend out of the box body 1 through the two sealing strips 16.

[0060] It can be understood that the two sealing strips 16 in the slot 15 can form a zipper-like sealing structure, and when the connecting frame 4 is inserted into the slot 15, the connecting frame 4 is located between the two sealing strips 16, so that the parts of the two sealing strips 16 close to the connecting frame 4 are folded inwardly of the box body 1, so that the two sealing strips 16 form a gap for the connecting frame 4 to pass through. The other parts of the two sealing strips 16 can still block the slot 15, so that part of the slot 15 can be sealed by the sealing strips 16, and dust can be prevented from entering the box body 1 through the slot 15 to a certain extent.

[0061] In specific implementation, since the connecting frame 4 needs to move along the slot 15, it will frequently rub against the two sealing strips 16, and after the connecting frame 4 moves to another position, the part of the sealing strip 16 that was previously pushed against and turned by the connecting frame 4 needs to quickly return to the state of blocking the slot 15. Therefore, the sealing strip 16 of this embodiment can be made of EPDM sealing strip 16, which has good elasticity, compression deformation resistance, and aging resistance, so as to increase the practical life of the sealing strip 16.

[0062] It is understandable that the slot 15 and the connecting frame 4 are both located outside the box 1. Therefore, in order to further protect the mechanism outside the box 1, as shown in FIG. Figure 4 As shown, in this embodiment, a shield 5 is provided at the slot 15, and the shield 5 can cover the slot 15 and the connecting frame 4, and an opening for the cleaning brush 2 to pass through is provided on one side of the shield 5. Specifically, the shield 5 can be connected to the box body 1 by bolts, and the shield 5 can cover the slot 15, the second motor 41, the cleaning brush 2 and part of the connecting frame 4, so as to prevent sand and stones carried by the strong wind from hitting the above structures in a strong wind environment, thereby damaging the dust removal device, thereby improving the reliability and service life of the dust removal device to a certain extent.

[0063] Since most railway sections are located in the wild environment, wild animals in the wild may cause damage to the railway equipment power distribution device of this embodiment, especially the cleaning brush 2 and the second motor 41 arranged outside the box body 1. In order to prevent wild animals from damaging the power distribution device, continue to combine Figure 4As shown, a baffle 6 is provided at the air inlet 11 of this embodiment, and the air inlet 11 and the mask 5 are both located in the baffle 6. Specifically, the baffle 6 is a basket frame structure, which can prevent wild animals from damaging the cleaning brush 2 therein, and the through holes on the baffle 6 structure can ensure that air can pass through the baffle 6 into the air inlet 11. In a specific implementation, the baffle 6 can be connected to the box body 1 by bolts to facilitate the installation of the baffle 6. And when assembling the power distribution device of this embodiment, the driving mechanism 3 should be installed in place first, and then the connecting frame 4 should be installed on the slider 32 after passing through the slot 15. Then, the cleaning brush 2 and the second motor 41 are installed at one end of the connecting frame 4 outside the box body 1, and finally the mask 5 and the baffle 6 are installed in sequence.

[0064] In order to further improve the heat dissipation effect of the power distribution device, such as Fig. 9 and Fig.10 As shown, the air inlet 11 of this embodiment is arranged at the bottom of the box body 1. Compared with the air inlet 11 being arranged at other positions of the box body 1, the air inlet 11 arranged at the bottom can effectively prevent rainwater and sand and dust from being blown directly to the air inlet 11 and the first dustproof net 12, and can also prevent rainwater on the outer wall of the box body 1 from flowing along the box body 1 and entering the air inlet 11. In addition, the air outlet 13 of this embodiment is arranged at the upper part of the box body 1, so that the hot air of the box body 1 rises and is discharged through the air outlet 13, thereby improving the efficiency of hot air discharge. It can be understood that since the air outlet 13 continuously discharges air, it is not easy for sand and dust or insects in the wild to enter the box body 1 through the air outlet 13, but in order to further improve the effect of blocking sand and dust and foreign objects. A second dustproof net 17 can also be provided at the air outlet 13 to prevent sand and dust and insects in the wild from entering the box body 1, and due to the blowing of the airflow of the air outlet 13, it is not easy for sand and dust to accumulate at the second dustproof net 17.

[0065] In addition, in order to prevent rainwater from entering the box body 1 and to facilitate inspection and maintenance by railway inspectors, an inclined rain shield 7 is provided on the top of the box body 1. At the same time, a side opening is provided on the box body 1, and a hatch 8 capable of opening and closing the side opening is hinged on the box body 1, and an observation window 81 is provided on the hatch 8. In specific implementation, a lock 82 for closing the hatch 8 is also provided on the hatch 8. This ensures the rainproof performance of the power distribution device and facilitates the inspectors to observe the working status of the electrical components in the box body 1 through the observation window 81.

[0066] In summary, the power distribution device for railway equipment of this embodiment, through the arrangement of the driving mechanism 3 and the cleaning brush 2, enables the driving mechanism 3 to drive the cleaning brush 2 to move through the connecting frame 4 to remove the sand and dust on the first dustproof net 12, thereby cleaning the dustproof net and improving the heat dissipation effect of the power distribution device. In addition, the driving mechanism 3 is arranged in the box body 1, which can prevent the driving mechanism 3 from being damaged by sand, dust and rain, and improve the reliability and service life of the dust removal device. In addition, through the arrangement of the mask 5 and the retaining frame 6, the first dustproof net 12 and the dust removal device can be further protected, thereby extending the service life of the power distribution device, and to a certain extent extending the maintenance cycle of the power distribution device, and having good practicality.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power distribution device for railway equipment, characterized in that: It comprises a box body (1) and a dust removal device; The box body (1) is provided with an air inlet (11), and a first dustproof net (12) is provided at the air inlet (11); The dust removal device comprises a cleaning brush (2) located outside the box (1), a driving mechanism (3) arranged inside the box (1), and a connecting frame (4) connecting the cleaning brush (2) and the driving mechanism (3); The connecting frame (4) is provided on the driving end of the driving mechanism (3), and one end of the connecting frame (4) can pass through the box (1) and be connected to the cleaning brush (2); The driving mechanism (3) is capable of driving the cleaning brush (2) to move along the width direction of the first dustproof net (12), so that the cleaning brush (2) removes sand and dust on the first dustproof net (12); The box body (1) is provided with an air outlet (13), and a heat dissipation fan (14) is provided at the air outlet (13).

2. The power distribution device for railway equipment according to claim 1, characterized in that: The driving mechanism (3) comprises a screw rod (31) arranged in the box body (1), a slider (32) screwed on the screw rod (31), and a first motor (33) for driving the screw rod (31) to rotate; The first motor (33) can drive the screw rod (31) to drive the slider (32) to move along the width direction of the first dustproof net (12), and the slider (32) is connected to the connecting frame (4).

3. The power distribution device for railway equipment according to claim 1, characterized in that: The cleaning brush (2) comprises a rotating shaft (21) rotatably connected to the connecting frame (4), and bristles (22) arranged on the outer peripheral surface of the rotating shaft (21); The connecting frame (4) is provided with a second motor (41) for driving the cleaning brush (2) to rotate.

4. The power distribution device for railway equipment according to claim 1, characterized in that: A slot (15) for the connection frame (4) to move is provided near the air inlet (11).

5. The power distribution device for railway equipment according to claim 4, characterized in that: Two sealing strips (16) arranged opposite to each other are arranged in the groove (15), and the sealing strips (16) are arranged along the length direction of the groove (15); The two sealing strips (16) can seal at least a portion of the slot (15), and the end of the connecting frame (4) can extend out of the box body (1) through between the two sealing strips (16).

6. The power distribution device for railway equipment according to claim 5, characterized in that: A mask (5) is provided at the slot (15), the mask (5) being capable of shielding the slot (15) and the connecting frame (4), and an opening for the cleaning brush (2) to pass through is provided on one side of the mask (5).

7. The power distribution device for railway equipment according to claim 6, characterized in that: A blocking frame (6) is provided at the air inlet (11), and the air inlet (11) and the shield (5) are both located in the blocking frame (6).

8. The power distribution device for railway equipment according to any one of claims 1 to 7, characterized in that: The air inlet (11) is arranged at the bottom of the box body (1); The air outlet (13) is arranged at the upper part of the box body (1), and a second dustproof net (17) is arranged at the air outlet (13).

9. The power distribution device for railway equipment according to claim 8, characterized in that: The top of the box body (1) is provided with a rain shield (7) arranged obliquely.

10. The power distribution device for railway equipment according to claim 9, characterized in that: The box body (1) is provided with a side opening, the box body (1) is hingedly provided with a hatch (8) capable of opening and closing the side opening, and the hatch (8) is provided with an observation window (81).

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