A train on-vehicle gateway box

Abstract

The present invention relates to the technical field of gateways, and provides a train on-vehicle gateway box, which includes a base, a housing and a cover plate. The housing is a hollow structure with openings at both ends. The interior of the housing serves as an accommodation cavity. The bottom of the housing is detachably connected to the top of the base. The cover plate is arranged on the top of the housing and is detachably connected to the housing. A bonding layer is provided at the bottom of the base. In the accommodation cavity of the housing, a gateway main board and a heat dissipation component are sequentially arranged from top to bottom. A plurality of mounting rods are arranged on the top surface of the base. The train on-vehicle gateway box provided by the present invention can be installed on the inner wall of the train carriage to reduce the space occupied by the gateway box after installation. When it is necessary to overhaul the relevant components inside the housing in the later stage, only the housing needs to be removed from the base to quickly troubleshoot, which is beneficial to improving the overhaul efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of gateways, and more particularly, to a train on-vehicle gateway box. Background Art

[0002] A gateway box is a connector and protocol converter applied to network connections. It can support conversions between different protocols and realize the interconnection between different protocol networks, and is widely used in the communication field.

[0003] At present, with the continuous development of rail transit technology, the wireless communication requirements of train on-vehicle devices are also increasing day by day. In order to meet the wireless communication requirements of train on-vehicle devices, a large number of gateway boxes capable of realizing the interconnection between different protocol networks often need to be arranged in train carriages.

[0004] Existing gateway boxes are mainly composed of components such as a housing and a gateway main board. Usually, the gateway main board is encapsulated in a relatively closed housing. Considering that a large amount of heat is generated when the gateway main board works by itself, some gateway boxes will also be provided with corresponding heat dissipation components below the gateway main board in the housing to ensure that the gateway main board can work continuously and reliably.

[0005] However, since both the gateway main board and the heat dissipation components are encapsulated in a relatively closed housing, once a fault occurs in the related components installed inside the housing, it is often necessary to disassemble a large number of components to find the faulty component and perform maintenance. In addition, the existing gateway boxes installed in train carriages often occupy the limited space of the train carriage and are easily damaged. Summary of the Invention

[0006] The purpose of the present invention is to provide a train on-vehicle gateway box to at least overcome the technical problems that the gateway boxes used on existing trains are not convenient for overhauling internal components and occupy a large amount of space after installation.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] A train on-vehicle gateway box includes a base, a housing, and a cover plate. The housing is a hollow structure with both ends open. The interior of the housing serves as a receiving cavity. The bottom of the housing is detachably connected to the top of the base. The cover plate is disposed on the top of the housing and is detachably connected to the housing. A bonding layer is provided at the bottom of the base;

[0009] A gateway main board and a heat dissipation component are sequentially arranged in the accommodating cavity of the housing from top to bottom. The heat dissipation component includes a mounting bracket, a heat dissipation fan, and a filter screen plate. The shapes of the gateway main board, the mounting bracket, and the filter screen plate are all adapted to the accommodating cavity of the housing. The heat dissipation fan is arranged inside the mounting bracket and faces the gateway main board. The filter screen plate is arranged at the bottom of the mounting bracket. A gap is reserved between the filter screen plate and the top surface of the base. An air inlet communicating with the accommodating cavity is formed in the side wall of the housing, and the air inlet is located between the filter screen plate and the base;

[0010] A plurality of mounting rods are arranged on the top surface of the base. The bottom end of the mounting rod is connected to the top surface of the base. The top end of the mounting rod sequentially penetrates through the filter screen plate, the mounting bracket, and the gateway main board in the vertical direction and is connected with a mounting nut.

[0011] In some possible embodiments, an annular insertion groove is arranged on the top surface of the base, and an insertion portion adapted to the insertion groove is arranged at the bottom of the housing.

[0012] In some possible embodiments, an inner cavity is arranged inside the base, the insertion groove surrounds the inner cavity of the base, and a locking mechanism is arranged inside the inner cavity of the base;

[0013] The locking mechanism includes a rotating disk, a driving component, and a plurality of locking components. The rotating disk is rotatably arranged at the center of the inner cavity of the base, and the plurality of locking components are uniformly arranged along the circumferential direction of the rotating disk;

[0014] Sliding grooves corresponding to the locking components are arranged on the circumferential side wall of the rotating disk. The sliding groove includes a first sliding section and a second sliding section. The first sliding section is an inward concave structure, the second sliding section is an outward convex structure, and an arc transition connection is formed between the first sliding section and the second sliding section;

[0015] The locking component includes a limiting block, a movable column, a locking spring, and a locking portion. The limiting block is fixedly arranged inside the inner cavity of the base. One end of the movable column extends into the sliding groove and can freely slide along the first sliding section and the second sliding section. The other end of the movable column horizontally penetrates through the limiting block and is connected with the locking portion. The movable column is slidably connected with the limiting block;

[0016] The locking spring is sleeved on the outer wall of the movable column. One end of the locking spring is connected to the side of the limiting block away from the rotating disk, and the other end of the locking spring is connected to the outer wall of the movable column. The locking portion includes a locking pin. A through hole corresponding to the locking pin is formed in the inner cavity of the base. The through hole communicates with the insertion groove. A locking hole adapted to the locking pin is formed on the insertion portion, and the locking hole is aligned with the through hole;

[0017] The driving assembly is used to drive the rotating disk to reciprocate, so that one end of the movable column away from the locking part slides back and forth between the first sliding section and the second sliding section of the sliding groove.

[0018] In some possible embodiments, the driving assembly includes a fixed block, a rotating shaft, a driving rod and a driving spring. The fixed block is fixedly arranged in the inner cavity of the base. The rotating shaft is eccentrically arranged at the bottom of the rotating disk. One end of the driving rod is movably connected to the rotating shaft. The other end of the driving rod horizontally penetrates through the fixed block and extends to the outside of the base. The driving rod is slidably connected with the fixed block.

[0019] The driving spring is sleeved on the outer wall of the driving rod. One end of the driving spring is connected to the side of the fixed block away from the rotating shaft, and the other end of the driving spring is connected to the outer wall of the driving rod.

[0020] In some possible embodiments, a spherical driving part is arranged at the end of the driving rod away from the rotating shaft.

[0021] In some possible embodiments, the locking part further includes a movable plate. One end of the movable column away from the rotating disk is connected to one side of the movable plate.

[0022] The number of the locking pins is multiple. The multiple locking pins are uniformly arranged along the length direction of the movable plate. One end of the locking pin is connected to the other side of the movable plate. The through hole and the locking hole correspond to the locking pin one by one.

[0023] In some possible embodiments, the mounting rod includes a limiting part, a first mounting part and a second mounting part arranged in sequence from bottom to top. The diameters of the limiting part, the first mounting part and the second mounting part decrease in sequence. First mounting holes adapted to the first mounting part are formed on both the filter screen plate and the mounting bracket. Second mounting holes adapted to the second mounting part are formed on the gateway main board.

[0024] In some possible embodiments, an air inlet hole is arranged on one side of the inner wall of the housing, and an air outlet hole is formed on the other side of the inner wall of the housing. The air inlet hole and the bottom surface of the gateway main board are in the same horizontal plane. The air outlet hole and the top surface of the gateway main board are in the same horizontal plane. A wind guiding channel is arranged inside the wall of the housing. The air inlet hole and the air outlet hole are both communicated with the wind guiding channel.

[0025] An air discharge port is further formed on the side wall of the housing. The air discharge port is communicated with the accommodating cavity inside the housing and is aligned with the air outlet hole.

[0026] In some possible embodiments, a filter screen is embedded in the air discharge port.

[0027] In some possible embodiments, a plurality of threaded holes are provided along the circumferential direction of the top of the outer shell, counterbores corresponding to the threaded holes one by one are formed on the cover plate, and screws are inserted into the threaded holes and the counterbores.

[0028] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0029] 1. The train on-vehicle gateway box provided by the present invention can be installed on the inner wall of the train carriage, so as to reduce the space occupied after the installation of the gateway box. When it is necessary to repair the relevant components inside the outer shell in the later stage, only the outer shell needs to be removed from the base to quickly troubleshoot the fault, which is beneficial to improving the repair efficiency.

[0030] 2. By adding a locking mechanism for locking the outer shell and the base, on the basis of ensuring the reliability of the connection between the outer shell and the base, when it is necessary to disassemble the outer shell, only the driving rod needs to be pulled to release the locking state between the outer shell and the base, and the operation is simple and convenient.

[0031] 3. By adding air inlet holes and air outlet holes corresponding to the bottom surface and the top surface of the gateway main board inside the outer shell, the present invention can dissipate heat from the bottom surface and the top surface of the gateway main board, effectively improving the heat dissipation effect when dissipating heat from the gateway main board. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the train on-vehicle gateway box provided by the embodiment of the present invention;

[0033] Figure 2 is an exploded view of the structure of the train on-vehicle gateway box provided by the embodiment of the present invention;

[0034] Figure 3 is Figure 2 a schematic structural diagram of the train on-vehicle gateway box after removing the outer shell and the cover plate in

[0035] Figure 4 is a schematic structural diagram of a single mounting rod and its mounting nut provided by the embodiment of the present invention;

[0036] Figure 5 is a schematic structural diagram of the outer shell provided by the embodiment of the present invention;

[0037] Figure 6 is a schematic structural diagram of the inside of the base provided by the embodiment of the present invention;

[0038] Figure 7 is a schematic structural diagram of the locking mechanism provided by the embodiment of the present invention;

[0039] Figure 8 is a schematic structural diagram of the rotating disk provided by the embodiment of the present invention;

[0040] Figure 9 This is a partial main sectional view of the train on-vehicle gateway box provided by the embodiment of the present invention.

[0041] Icons: 10 - base, 10a - insertion slot, 10b - adhesive layer, 10c - through hole, 20 - outer shell, 20a - insertion part, 20a1 - locking hole, 20b - air inlet, 20c - air inlet hole, 20d - air outlet hole, 20e - air guiding channel, 20f - air discharge port, 30 - cover plate, 40 - gateway main board, 50 - mounting bracket, 60 - cooling fan, 70 - filter screen plate, 80 - mounting rod, 81 - limiting part, 82 - first mounting part, 83 - second mounting part, 90 - mounting nut, 100 - locking mechanism, 101 - rotating disk, 101a - sliding groove, 101a1 - first sliding section, 101a2 - second sliding section, 102 - driving component, 1021 - fixing block, 1022 - rotating shaft, 1023 - driving rod, 1024 - driving spring, 1025 - driving part, 103 - locking component, 1031 - limiting block, 1032 - movable column, 1033 - locking spring, 1034 - locking pin, 1035 - movable plate. Detailed implementation manners

[0042] Embodiment 1

[0043] Please refer to Figures 1 to 4 , this embodiment provides a train on-vehicle gateway box to at least overcome the technical problems that the gateway box used on existing trains is not convenient for overhauling internal components and occupies a large space after installation. Specifically, the train on-vehicle gateway box includes a base 10, an outer shell 20 and a cover plate 30.

[0044] In this embodiment, the outer shell 20 has a hollow structure with both ends open, and the interior of the outer shell 20 serves as a receiving cavity to facilitate the installation of relevant components constituting the gateway box in the receiving cavity inside the outer shell 20. At the same time, the bottom of the outer shell 20 is detachably connected to the top of the base 10. For example, bolts and other fasteners are used to connect the outer shell 20 and the base 10, so that when it is necessary to overhaul the components inside the outer shell 20, the outer shell 20 can be directly removed from the base 10. It can be understood that, in order to further improve the reliability after the connection between the outer shell 20 and the base 10, referring to Figure 2 the content shown, a ring-shaped insertion slot 10a is provided on the top surface of the base 10, and an insertion part 20a adapted to the insertion slot 10a is provided at the bottom of the outer shell 20. When it is necessary to install the outer shell 20 on the base 10, first insert the insertion part 20a at the bottom of the outer shell 20 into the insertion slot 10a of the base 10, and then connect the outer shell 20 and the base 10 with bolts and other fasteners.

[0045] Referring to Figure 2 andFigure 3 As shown in the figure, the components installed in the accommodation cavity of the housing 20 include a gateway main board 40 and a heat dissipation component arranged in sequence from bottom to top. Among them, the gateway main board 40, as the core component of the train on-vehicle gateway box, can realize the interconnection between different protocol networks. In actual implementation, the gateway main board 40 can adopt the gateway main board 40 used in existing conventional gateway boxes. At this time, considering that wiring ports for facilitating wiring are often provided on the gateway main board 40, wiring ports corresponding to the wiring ports can be provided at corresponding positions on the side wall of the housing 20, so as to facilitate the wiring operation when using the train on-vehicle gateway box. For example, in this embodiment, a wiring port corresponding to the wiring port on the gateway main board 40 is opened on the front side of the housing 20.

[0046] Considering that a large amount of heat will be generated during the actual operation of the gateway main board 40, if the gateway main board 40 is not cooled in time, the normal working performance of the train on-vehicle gateway box will be seriously affected. For this reason, the heat dissipation component in this embodiment is mainly used to dissipate heat from the gateway main board 40. Continuing to refer to Figure 2 and Figure 3 , the heat dissipation component includes a mounting bracket 50, a heat dissipation fan 60 and a filter plate 70. The shapes of the gateway main board 40, the mounting bracket 50 and the filter plate 70 are all adapted to the accommodation cavity of the housing 20, so as to facilitate the installation of the gateway main board 40, the mounting bracket 50 and the filter plate 70 in the accommodation cavity of the housing 20 or the removal from the accommodation cavity of the housing 20. And when the gateway main board 40, the mounting bracket 50 and the filter plate 70 are all installed in the accommodation cavity of the housing 20, the circumferential side walls of the three can all be attached to the inner side wall of the housing 20. At this time, combining Figure 3 the content shown in the figure, the heat dissipation fan 60 is arranged inside the mounting bracket 50 and is directly opposite to the gateway main board 40, and the filter plate 70 is arranged at the bottom of the mounting bracket 50, and a gap is reserved between the filter plate 70 and the top surface of the base 10. An air inlet 20b communicating with the accommodation cavity is opened on the side wall of the housing 20, and the air inlet 20b is located between the filter plate 70 and the base 10. As a preference, the air inlet 20b is opened on the side walls on the left and right sides of the housing 20, and the air inlet 20b is a plurality of ventilation holes arranged in a line on the side wall of the housing 20.

[0047] With such a setting, when the cooling fan 60 is started, the external air enters the interior of the housing 20 through the air inlets 20b on the left and right sides of the housing 20. The air that enters the interior of the housing 20 flows upward from bottom to top under the action of the cooling fan 60 to pass through the filter plate 70. During this process, the filter plate 70 can filter out a large amount of dust and impurities in the air to prevent the dust and impurities from entering the interior of the cooling fan 60 or adhering to the gateway main board 40, which may affect the normal operation of the cooling fan 60 and the gateway main board 40. After that, the air filtered by the filter plate 70 flows upward and continuously blows towards the gateway main board 40 to achieve heat dissipation for the gateway main board 40.

[0048] To facilitate the installation of the gateway main board 40, the mounting bracket 50, and the filter plate 70 in the accommodating cavity of the housing 20, in combination with Figure 3 the content shown in the figure, in this embodiment, a plurality of mounting rods 80 are provided on the top surface of the base 10. Among them, the bottom end of the mounting rod 80 is connected to the top surface of the base 10, and the top end of the mounting rod 80 sequentially penetrates through the filter plate 70, the mounting bracket 50, and the gateway main board 40 in the vertical direction and is threadedly connected with a mounting nut 90.

[0049] Furthermore, in combination with Figure 4 the content shown in the figure, the mounting rod 80 includes a limiting portion 81, a first mounting portion 82, and a second mounting portion 83 that are sequentially arranged from bottom to top. The diameters of the limiting portion 81, the first mounting portion 82, and the second mounting portion 83 decrease in sequence. First mounting holes adapted to the first mounting portion 82 are formed on both the filter plate 70 and the mounting bracket 50, and a second mounting hole adapted to the second mounting portion 83 is formed on the gateway main board 40.

[0050] During the actual assembly stage of the train on-vehicle gateway box, after the outer shell 20 is fixedly connected to the base 10, first place the filter screen plate 70 into the accommodating cavity of the outer shell 20, and let the mounting rod 80 pass through the first mounting hole of the filter screen plate 70. Since the diameter of the limiting portion 81 is greater than the diameter of the first mounting portion 82, the filter screen plate 70 will be carried on the top surface of the limiting portion 81 to achieve the installation and fixation of the filter screen plate 70. At this time, there is a gap between the filter screen plate 70 and the bottom surface of the base 10, and the height of this gap is equal to the height of the limiting portion 81, so as to facilitate the external air to enter the interior of the outer shell 20 through the air inlet 20b; after the filter screen plate 70 is installed, place the mounting bracket 50 with the cooling fan 60 installed into the interior of the outer shell 20 and let the mounting rod 80 pass through the first mounting hole on the mounting bracket 50 in the same way, so that the bottom surface of the mounting bracket 50 is carried on the top surface of the filter screen plate 70 to achieve the installation and fixation of the mounting bracket 50 together with the cooling fan 60; finally, place the gateway main board 40 into the interior of the outer shell 20 and let the mounting rod 80 pass through the second mounting hole of the gateway main board 40. Since the diameter of the second mounting portion 83 is smaller than the diameter of the first mounting portion 82, the gateway main board 40 will be received on the top surface of the second mounting portion 83. At this time, there is also a gap between the gateway main board 40 and the mounting bracket 50, so as to facilitate the flow of air between the cooling fan 60 and the gateway main board 40 and further improve the heat dissipation effect. After the gateway main board 40 is installed in place, just install the mounting nut 90 on the top end of the mounting rod 80, and the operation is simple and convenient.

[0051] It can be understood that, in combination with Figure 3 the content shown, in this embodiment, there are a total of four mounting rods 80 provided on the top surface of the base 10, and the four mounting rods 80 are arranged in a rectangular array to improve the stability of the gateway main board 40, the mounting bracket 50 and the filter screen plate 70 after installation. At the same time, by adding the mounting rod 80 with the limiting portion 81, the first mounting portion 82 and the second mounting portion 83 to install the gateway main board 40, the mounting bracket 50 and the filter screen plate 70, the installation process of the gateway main board 40, the mounting bracket 50 and the filter screen plate 70 is simplified, which is more conducive to the later maintenance of relevant components.

[0052] In this embodiment, in combination with Figure 1 and Figure 2 the content shown, the cover plate 30 is provided on the top of the outer shell 20. A plurality of threaded holes are provided along the circumferential direction of the top of the outer shell 20. Counterbores corresponding to the threaded holes one by one are provided on the cover plate 30, and screws are inserted into the threaded holes and the counterbores to achieve the detachable connection between the cover plate 30 and the outer shell 20. It can be understood that by adding the cover plate 30, it can further play a role in protecting various components installed inside the outer shell 20, and when only the gateway main board 40 needs to be maintained, only the cover plate 30 needs to be disassembled, and the operation is simple and convenient.

[0053] In this embodiment, in combination with 1 and Figure 2 As shown in the figure, an adhesive layer 10b is provided at the bottom of the base 10. By using this adhesive layer 10b, the base 10 can be directly adhered to the inner wall of the train carriage, so as to install the train on-vehicle gateway box on the inner wall of the train carriage without drilling holes, so as to minimize the space occupied by the train on-vehicle gateway box after installation and reduce the risk of the gateway box being accidentally damaged by people.

[0054] It can be seen that the train on-vehicle gateway box provided in this embodiment can be installed on the inner wall of the train carriage to reduce the space occupied by the gateway box after installation. When it is necessary to repair the relevant components inside the housing 20 in the later stage, only need to remove the housing 20 from the base 10 to quickly troubleshoot the fault, which is beneficial to improve the maintenance efficiency.

[0055] Embodiment 2

[0056] On the basis of Embodiment 1, considering that bolts and other fasteners are used to connect the housing 20 and the base 10, it is inconvenient to disassemble the housing 20 when the train on-vehicle gateway box is installed at a relatively high position on the inner wall of the train carriage. For this reason, please refer to Figures 5 to 8 , this embodiment further adds a locking mechanism 100 for locking the housing 20 and the base 10 to simplify the disassembly and assembly process between the housing 20 and the base 10.

[0057] In this embodiment, in combination with Figure 6 As shown in the figure, a cavity is provided inside the base 10, and the insertion slot 10a is arranged around the cavity of the base 10. That is to say, the cavity inside the base 10 is surrounded by the insertion slot 10a, and the locking mechanism 100 is arranged inside the cavity of the base 10.

[0058] Specifically, please refer to Figure 7 , the locking mechanism 100 includes a rotating disk 101, a driving component 102 and a plurality of locking components 103. The rotating disk 101 is rotatably arranged at the center of the inner cavity of the base 10 through a rotating shaft, and the plurality of locking components 103 are uniformly arranged along the circumferential direction of the rotating disk 101.

[0059] In combination with Figure 8 As shown in the figure, sliding grooves 101a corresponding to the locking components 103 one by one are arranged on the circumferential side wall of the rotating disk 101. The sliding grooves 101a include a first sliding section 101a1 and a second sliding section 101a2. The first sliding section 101a1 is a concave structure, and the second sliding section 101a2 is a convex structure, and the first sliding section 101a1 and the second sliding section 101a2 are connected by an arc transition, so as to form a smooth arc surface between the first sliding section 101a1 and the second sliding section 101a2.

[0060] Continue to refer toFigure 7 , the locking component 103 includes a limiting block 1031, a movable column 1032, a locking spring 1033 and a locking portion. The limiting block 1031 is fixedly arranged in the inner cavity of the base 10. One end of the movable column 1032 extends into the corresponding sliding groove 101a of the rotating disc 101 and can freely slide along the first sliding section 101a1 and the second sliding section 101a2. The other end of the movable column 1032 horizontally penetrates through the limiting block 1031 and is connected to the locking portion. The movable column 1032 is slidably connected to the limiting block 1031 so that the movable column 1032 can slide freely. The locking spring 1033 is sleeved on the outer wall of the movable column 1032. One end of the locking spring 1033 is connected to the side of the limiting block 1031 away from the rotating disc 101, and the other end of the locking spring 1033 is connected to the outer wall of the movable column 1032. The locking portion includes a locking pin 1034. Combining Figure 6 with the content shown in the figure, a through hole 10c corresponding to the locking pin 1034 is formed in the inner cavity of the base 10, and the through hole 10c is communicated with the insertion groove 10a. Combining Figure 5 with the content shown in the figure, a locking hole 20a1 adapted to the locking pin 1034 is formed on the insertion portion 20a, and the locking hole 20a1 is aligned with the through hole 10c.

[0061] The driving component 102 is used to drive the rotating disc 101 to reciprocate within a certain angle range, so that one end of the movable column 1032 away from the locking portion slides back and forth between the first sliding section 101a1 and the second sliding section 101a2 of the sliding groove 101a.

[0062] With such a setting, assuming that in the initial state, one end of the movable column 1032 of all the locking components 103 close to the rotating disk 101 is located in the first sliding section 101a1 of the corresponding sliding groove 101a, and all the locking springs 1033 of the locking components 103 are in a natural elongation state. At this time, the locking pin 1034 of the locking part is hidden in the through hole 10c of the base 10 under the drive of the movable column 1032, so that the insertion part 20a at the bottom of the housing 20 can be normally inserted into the insertion groove 10a of the base 10. When the insertion part 20a at the bottom of the housing 20 is inserted into the insertion groove 10a of the base 10, the locking hole 20a1 on the insertion part 20a is aligned with the through hole 10c in the insertion groove 10a. At this time, the rotating disk 101 is driven by the driving component 102 to rotate by a certain angle. In this process, for a single locking component 103, one end of the movable column 1032 close to the rotating disk 101 will slide relative to the sliding groove 101a from the first sliding section 101a1 to the second sliding section 101a2. Based on the fact that the second sliding section 101a2 is a convex structure and under the limiting action of the limiting block 1031, the movable column 1032 will move horizontally away from the rotating disk 101 under the pushing action of the rotating disk 101, and the locking spring 1033 will elongate to store a elastic force. At this time, the movable column 1032 will push the locking pin 1034 of the locking part out of the through hole 10c and make the locking pin 1034 inserted into the locking hole 20a1 of the insertion part 20a, thus realizing the locking of the housing 20 and the base 10 by using the locking pin 1034. It should be noted that Figure 6 The structure shown is the schematic diagram of the structure when the locking pin 1034 extends out of the through hole 10c; conversely, when the driving component 102 drives the rotating disk 101 to rotate reversely by a certain angle, based on the fact that the first sliding section 101a1 is a concave structure, at this time the locking spring 1033 will release the stored elastic force to force one end of the movable column 1032 close to the rotating disk 101 to slide relative to the sliding groove 101a from the second sliding section 101a2 to the first sliding section 101a1, so that the movable column 1032 moves towards the rotating disk 101, and then drives the locking pin 1034 of the locking part to withdraw from the locking hole 20a1 of the insertion part 20a and be hidden in the through hole 10c again, thus realizing the unlocking of the locking state between the housing 20 and the base 10, so as to facilitate the removal of the housing 20 from the base 10.

[0063] It can be understood that in combination with Figure 6As shown in the figure, there are four locking components 103 in this embodiment, and the four locking components 103 are distributed in a rectangular array along the circumferential direction of the rotating disk 101, so as to lock the upper, lower, left and right four sides of the outer shell 20 respectively by using the four locking components 103, and improve the stability after the outer shell 20 and the base 10 are locked. At the same time, the locking part in this embodiment further includes a movable plate 1035. One end of the movable column 1032 far away from the rotating disk 101 is connected to one side of the movable plate 1035, so as to drive the movable plate 1035 to move synchronously through the movable column 1032. At this time, the number of locking pins 1034 is multiple, and the multiple locking pins 1034 are evenly arranged along the length direction of the movable plate 1035. One end of the locking pin 1034 is connected to the other side of the movable plate 1035, and the other end of the locking pin 1034 extends into the through hole 10c. The through hole 10c and the locking hole 20a1 correspond to the locking pin 1034 one by one. By setting multiple locking pins 1034 to lock each side of the outer shell 20 at the same time, the reliability after the outer shell 20 and the base 10 are locked can be further improved. For example, there are two locking pins 1034 in each locking part in this embodiment.

[0064] Furthermore, in order to facilitate the driving component 102 to drive the rotating disk 101 to reciprocate within a certain angle range, continue to refer to Figure 7 , the driving component 102 in this embodiment includes a fixed block 1021, a rotating shaft 1022, a driving rod 1023 and a driving spring 1024.

[0065] Among them, combining Figure 6 and Figure 7 As shown in the figure, the fixed block 1021 is fixedly arranged in the inner cavity of the base 10, the rotating shaft 1022 is eccentrically arranged at the bottom of the rotating disk 101, and one end of the driving rod 1023 is movably connected to the rotating shaft 1022, that is, the driving rod 1023 and the rotating disk 101 are hinged through the rotating shaft 1022. The other end of the driving rod 1023 horizontally penetrates through the fixed block 1021 and then extends to the outside of the base 10. The driving rod 1023 is slidably connected to the fixed block 1021 so that the driving rod 1023 can slide freely. At the same time, the driving spring 1024 is sleeved on the outer wall of the driving rod 1023. One end of the driving spring 1024 is connected to the side of the fixed block 1021 far away from the rotating shaft 1022, and the other end of the driving spring 1024 is connected to the outer wall of the driving rod 1023.

[0066] With such a setting, assuming that the driving spring 1024 is in a natural elongation state when the outer shell 20 and the base 10 are in a locked state, that is Figure 6 and Figure 7In the shown structure, when it is necessary to unlock the housing 20 from the base 10, only the outer end of the driving rod 1023 located outside the base 10 needs to be pulled. Since the driving rod 1023 is movably connected to the rotating shaft 1022 eccentrically arranged at the bottom of the rotating disc 101, the driving rod 1023 will drive the rotating disc 101 to rotate a certain angle. During this process, the driving spring 1024 will elongate to store an elastic force. Conversely, when the force acting on the driving rod 1023 is removed, the driving spring 1024 will release the stored elastic force to force the driving rod 1023 to reset. At this time, the driving rod 1023 will push the rotating disc 101 in the reverse direction to make the rotating disc 101 rotate a certain angle in the reverse direction, thereby forcing the rotating disc 101 to reset.

[0067] It can be understood that, in combination with Figure 6 and Figure 7 the content shown, in actual implementation, a spherical driving part 1025 can also be provided at the end of the driving rod 1023 far from the rotating shaft 1022, so as to facilitate pulling the driving rod 1023 after holding the driving part 1025 from the outside of the base 10, thereby conveniently operating the driving rod 1023 to unlock the locking state between the housing 20 and the base 10. At the same time, a freely rotatable ball can be provided at the end of the movable column 1032 close to the rotating disc 101, and the outer wall of the ball is in contact with the inner wall of the sliding groove 101a, so as to reduce the friction between the movable column 1032 and the rotating disc 101 when the movable column 1032 slides in the sliding groove 101a, which is beneficial to the sliding of the movable column 1032 relative to the rotating disc 101 between the first sliding section 101a1 and the second sliding section 101a2 of the sliding groove 101a.

[0068] It should be noted that based on the train on-vehicle gateway box provided in this embodiment, it can be installed on the inner wall of the train carriage. When the gateway box is installed on the inner wall of the train carriage, the side provided with the driving part 1025 should face downwards, so as to facilitate operating the driving rod 1023 from below the gateway box. At this time, in order to prevent the driving spring 1024 from elongating due to the influence of the gravity of the driving rod 1023 and the driving part 1025 itself, the elastic force of the driving spring 1024 in the natural elongation state should be greater than the total gravity of the driving rod 1023 and the driving part 1025. That is to say, the driving spring 1024 will only elongate when an external force (such as pulling the driving part 1025 by hand) is applied to the driving part 1025, and when the housing 20 and the base 10 are in the locked state and the driving part 1025 is not subjected to an external force, the driving spring 1024 is always in the natural elongation state.

[0069] It can be seen that, on the basis of Embodiment 1, by further adding a locking mechanism 100 for locking the housing 20 and the base 10, on the basis of ensuring the reliability of the connection between the housing 20 and the base 10, when it is necessary to disassemble the housing 20, only the driving rod 1023 needs to be pulled to release the locking state between the housing 20 and the base 10, and the operation is simple and convenient.

[0070] Embodiment 3

[0071] On the basis of Embodiment 1, in combination with Figure 3 the content shown, considering that the main components of the gateway motherboard 40 are usually arranged on the top surface of the gateway motherboard 40, and when the heat dissipation fan 60 directly blows air to the bottom surface of the gateway motherboard 40 for heat dissipation in Embodiment 1, the top surface of the gateway motherboard 40 cannot be cooled, so that the heat dissipation effect is often not ideal. Therefore, please refer to Figure 5 and Figure 9 , the structure of the housing 20 is further improved in this embodiment to improve the heat dissipation effect when the heat dissipation fan 60 is used to dissipate heat from the gateway motherboard 40.

[0072] Specifically, in this embodiment, an air inlet hole 20c is provided on one side of the inner wall of the housing 20, and an air outlet hole 20d is opened on the other side of the inner wall of the housing 20. In combination with Figure 9 the content shown, after the train on-vehicle gateway box is assembled, the air inlet hole 20c and the bottom surface of the gateway motherboard 40 are in the same horizontal plane, the air outlet hole 20d and the top surface of the gateway motherboard 40 are in the same horizontal plane. At the same time, a ring-shaped air guide channel 20e is provided inside the wall of the housing 20, and both the air inlet hole 20c and the air outlet hole 20d are communicated with the air guide channel 20e. At the same time, an air exhaust port 20f is also opened on the side wall of the housing 20. The air exhaust port 20f is communicated with the inside of the housing 20 and is aligned with the air outlet hole 20d. That is to say, the air exhaust port 20f and the air inlet hole 20c are located on the same side wall of the housing 20, and the air exhaust port 20f is located above the air inlet hole 20c to achieve alignment with the air outlet hole 20d.

[0073] In combination with Figure 9As can be seen from the schematic diagram showing the air flowing inside the housing 20, when the cooling fan 60 is operating, the external air enters the interior of the housing 20 through the air inlets 20b on the left and right sides of the housing 20. And the air entering the interior of the housing 20 flows upward under the action of the cooling fan 60 and blows towards the bottom surface of the gateway main board 40. At this time, the air in the area far from the air inlet hole 20c will directly contact the bottom surface of the gateway main board 40 to conduct primary heat dissipation for the gateway main board 40. The air in the area close to the air inlet hole 20c enters the interior of the air guiding channel 20e from the air inlet hole 20c. At the same time, the air in contact with the bottom surface of the gateway main board 40 will flow along the bottom surface of the gateway main board 40 towards the direction where the air inlet hole 20c is located under the restrictive action of the gateway main board 40 and will eventually also enter the air guiding channel 20e. And the air entering the air guiding channel 20e will flow along the annular air guiding channel 20e and flow out from the air outlet hole 20d to blow towards the top surface of the gateway main board 40, thereby realizing secondary heat dissipation for the gateway main board 40. Finally, the air flowing through the top surface of the gateway main board 40 and carrying a large amount of heat will flow out from the air outlet 20f opposite to the air outlet hole 20d to the external environment.

[0074] It can be understood that in actual implementation, a filter screen can also be embedded in the air outlet 20f to prevent dust and impurities in the external environment from entering the interior of the housing 20 from the air outlet 20f and adhering to the gateway main board 40 when the cooling fan 60 is not operating, thereby ensuring that the gateway main board 40 can work continuously and reliably.

[0075] Thus, it can be seen that based on Embodiment 1, in this embodiment, by adding an air inlet hole 20c and an air outlet hole 20d corresponding to the bottom surface and the top surface of the gateway main board 40 respectively inside the housing 20, it is possible to dissipate heat from the bottom surface and the top surface of the gateway main board 40, effectively improving the heat dissipation effect when dissipating heat from the gateway main board 40.

[0076] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A train on-vehicle gateway box, characterized in that It includes a base, a housing, and a cover plate. The housing is a hollow structure with openings at both ends. The interior of the housing serves as a receiving cavity. The bottom of the housing is detachably connected to the top of the base. The cover plate is disposed on the top of the housing and is detachably connected to the housing. A bonding layer is provided at the bottom of the base; Inside the receiving cavity of the housing, a gateway main board and a heat dissipation component are sequentially arranged from top to bottom. The heat dissipation component includes a mounting bracket, a cooling fan, and a filter plate. The shapes of the gateway main board, the mounting bracket, and the filter plate are all adapted to the receiving cavity of the housing. The cooling fan is disposed inside the mounting bracket and faces the gateway main board. The filter plate is disposed at the bottom of the mounting bracket. A gap is reserved between the filter plate and the top surface of the base. An air inlet communicating with the receiving cavity is provided on the side wall of the housing. The air inlet is located between the filter plate and the base; On the top surface of the base, a plurality of mounting rods are provided. The bottom end of the mounting rod is connected to the top surface of the base. The top end of the mounting rod sequentially penetrates through the filter plate, the mounting bracket, and the gateway main board in the vertical direction and is then connected with a mounting nut; A ring-shaped insertion groove is provided on the top surface of the base. A plug-in portion adapted to the insertion groove is provided at the bottom of the housing; An inner cavity is provided inside the base. The insertion groove surrounds the inner cavity of the base. A locking mechanism is provided inside the inner cavity of the base; The locking mechanism includes a rotating disk, a driving component, and a plurality of locking components. The rotating disk is rotatably arranged at the center of the inner cavity of the base. The plurality of locking components are uniformly arranged along the circumference of the rotating disk; On the circumferential side wall of the rotating disk, sliding grooves corresponding to the locking components are provided. The sliding groove includes a first sliding section and a second sliding section. The first sliding section is a concave structure. The second sliding section is a convex structure. The first sliding section and the second sliding section are connected by an arc transition; The locking component includes a limiting block, a movable column, a locking spring, and a locking portion. The limiting block is fixedly arranged inside the inner cavity of the base. One end of the movable column extends into the sliding groove and can freely slide along the first sliding section and the second sliding section. The other end of the movable column horizontally penetrates through the limiting block and is connected to the locking portion. The movable column is slidably connected with the limiting block; The locking spring is sleeved on the outer wall of the movable column. One end of the locking spring is connected to the side of the limiting block away from the rotating disk. The other end of the locking spring is connected to the outer wall of the movable column. The locking portion includes a locking pin. A through hole corresponding to the locking pin is provided in the inner cavity of the base. The through hole communicates with the insertion groove. A locking hole adapted to the locking pin is provided on the plug-in portion. The locking hole is aligned with the through hole; The driving component is used to drive the rotating disk to rotate reciprocally, so that one end of the movable column away from the locking portion slides back and forth between the first sliding section and the second sliding section of the sliding groove.

2. The train on-vehicle gateway box according to claim 1, characterized in that, The driving component includes a fixed block, a rotating shaft, a driving rod and a driving spring. The fixed block is fixedly arranged inside the inner cavity of the base. The rotating shaft is eccentrically arranged at the bottom of the rotating disc. One end of the driving rod is movably connected to the rotating shaft. The other end of the driving rod horizontally penetrates through the fixed block and extends to the outside of the base. The driving rod is slidably connected with the fixed block; The driving spring is sleeved on the outer wall of the driving rod. One end of the driving spring is connected to the side of the fixed block away from the rotating shaft, and the other end of the driving spring is connected to the outer wall of the driving rod.

3. The train on-vehicle gateway box according to claim 2, characterized in that, A spherical driving part is arranged at the end of the driving rod away from the rotating shaft.

4. The train on-vehicle gateway box according to claim 1, characterized in that The locking part further includes a movable plate. One end of the movable column away from the rotating disc is connected to one side of the movable plate; The number of the locking pins is multiple. The multiple locking pins are evenly arranged along the length direction of the movable plate. One end of the locking pin is connected to the other side of the movable plate. The through holes and the locking holes correspond to the locking pins one by one.

5. The train on-vehicle gateway box according to claim 1, characterized in that, The mounting rod includes a limiting part, a first mounting part and a second mounting part which are arranged in sequence from bottom to top. The diameters of the limiting part, the first mounting part and the second mounting part decrease in sequence. First mounting holes adapted to the first mounting part are formed in both the filter mesh plate and the mounting bracket. Second mounting holes adapted to the second mounting part are formed in the gateway main board.

6. The train on-vehicle gateway box according to claim 1, characterized in that An air inlet hole is formed in one side of the inner wall of the housing. An air outlet hole is formed in the other side of the inner wall of the housing. The air inlet hole and the bottom surface of the gateway main board are in the same horizontal plane. The air outlet hole and the top surface of the gateway main board are in the same horizontal plane. A wind guiding channel is arranged inside the wall of the housing. The air inlet hole and the air outlet hole are both communicated with the wind guiding channel; An air exhaust port is further formed in the side wall of the housing. The air exhaust port is communicated with the accommodating cavity inside the housing and is aligned with the air outlet hole.

7. The train on-vehicle gateway box according to claim 6, characterized in that, A filter screen is embedded in the air exhaust port.

8. The train on-vehicle gateway box according to claim 1, characterized in that A plurality of threaded holes are arranged along the circumference of the top of the housing. Counterbores corresponding to the threaded holes one by one are formed in the cover plate. Screws are inserted into the threaded holes and the counterbores.

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