Case for rail transit electromechanical equipment monitoring and control device

Abstract

The utility model provides a case for a monitoring and control device of rail transit electromechanical equipment, which relates to the technical field of rail transit electromechanical equipment and comprises a case bottom shell, a bottom cavity is arranged in the case bottom shell, two ends of one side of the case bottom shell are fixedly connected with first hinge lugs, the top of the case bottom shell is provided with a case top shell, and the case top shell is provided with a second hinge lug. The computer case comprises a case top shell, a top cavity is formed in the case top shell, a heat dissipation assembly is arranged in the top cavity, a fixed carrying frame is fixedly installed in the top cavity, the fixed carrying frame is shaped like a Chinese character'ji ', movable carrying blocks in opposite directions are arranged on the two sides of the fixed carrying frame, and guide sliding strips are fixedly connected to the two sides of the movable carrying blocks. According to the computer case, the heat dissipation assembly is arranged, so that internal elements can be comprehensively cooled, the problem that part of the internal elements are still heated and hot due to the fact that heat dissipation is not in place is avoided, the computer case top shell can be conveniently opened through the limiting structure, and maintenance personnel can conveniently overhaul the internal elements.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit electromechanical monitoring equipment, and more specifically, particularly relates to a chassis for a rail transit electromechanical equipment monitoring and control device. Background Art

[0002] Urban rail transit is the backbone of urban public transportation and is vital to the development of the city. In order to ensure the normal operation of urban rail transit, it is necessary to use monitoring equipment for urban rail transit electromechanical equipment to safeguard the normal operation of urban rail transit electromechanical equipment.

[0003] Based on the above, the existing monitoring equipment will generate heat when running for a long time, and then a fan will be used to dissipate the heat of the monitoring equipment. However, the fan is fixed during the heat dissipation and can only blow air to dissipate heat at one location, which is too limited, resulting in uneven heat dissipation of the monitoring equipment. Utility Model Content

[0004] In order to solve the above technical problems, the embodiments of the present disclosure relate to a chassis for a rail transit electromechanical equipment monitoring and control device, so as to solve the problem that the heat dissipation of the monitoring equipment is too limited, resulting in uneven heat dissipation and causing some internal components to still heat up. The utility model not only controls the movement of the fan, thereby facilitating the comprehensiveness of the heat dissipation of the monitoring equipment, but also avoids the problem of some internal components still heating up.

[0005] The utility model is a chassis for a rail transit electromechanical equipment monitoring and control device, which is achieved by the following specific technical means:

[0006] In a first aspect of the present disclosure, there is provided a chassis for a rail transit electromechanical equipment monitoring and control device, specifically comprising a chassis bottom shell;

[0007] A bottom cavity is provided inside the bottom shell of the chassis, and first hinge ears are fixedly connected to both ends of one side of the bottom shell of the chassis, and a chassis top shell is provided on the top of the bottom shell of the chassis, and a top cavity is provided inside the top shell of the chassis, and a heat dissipation component is provided inside the top cavity, and the heat dissipation component includes a fixed carrier frame, a movable carrier block, a guide slide bar, a limiting slide groove, an installation support groove, a first motor, a drive belt shaft, a fan blade, a fixed support block, a threaded hole, a rotating screw and a second motor, a fixed carrier frame is fixedly installed inside the top cavity, and the fixed carrier frame is in a "J" shape, and movable carrier blocks in opposite directions are provided on both sides of the fixed carrier frame, and guide slide bars are fixedly connected to the movable carrier blocks on both sides. A slide bar, and a limited slide groove is provided on the inner side of the fixed carrier frame, and the guide slide bar is slidably installed in the limited slide groove, an installation support groove is provided inside the movable carrier block, and a first motor is installed inside the installation support groove, and a driving end of the first motor is fixedly connected to one end of the driving belt shaft, and the other end of the driving belt shaft is fixedly connected to the fan blade, and a fixed support block is fixedly connected to the top of the movable carrier block, a threaded hole is provided at the midpoint of the fixed support block, and a rotating screw is meshedly installed in the threaded hole, and the end of the rotating screw is fixedly connected to the second motor, and the second motor is fixedly installed on the ends in opposite directions on both sides of the fixed carrier frame.

[0008] In at least some embodiments, a second hinged ear is fixedly connected to the middle of one side of the chassis top shell, and the second hinged ear is aligned with the first hinged ear, and the second hinged ear is hinged to the first hinged ear through a first hinge shaft column.

[0009] In at least some embodiments, a limiting structure is provided at the front end of the chassis bottom shell, and the limiting structure includes a third hinged ear, a limiting buckle block, a fourth hinged ear and a second hinged shaft column. The third hinged ear is fixedly connected to both sides of the front end of the chassis bottom shell, and a limiting buckle block is also provided at the front end of the chassis bottom shell, and a fourth hinged ear is fixedly connected to the middle of the bottom of one end of the limiting buckle block, and the fourth hinged ear is hinged to the third hinged ear through the second hinged shaft column.

[0010] In at least some embodiments, the limiting structure also includes an insertion slot, an insertion block and a limiting hole. The limiting buckle block has an insertion slot inside, and the front ends of the chassis top shell are fixedly connected with the insertion blocks, and a limiting hole is provided at one end of the outer side of the insertion block.

[0011] In at least some embodiments, the limiting structure also includes a sliding support hole, a limiting plug, a connecting convex ring and a reset support groove. A through sliding support hole is opened on one side of the limiting buckle block, and a limiting plug is slidably installed inside the sliding support hole. At the same time, the outer wall of the limiting plug is fixedly connected with a connecting convex ring, and a reset support groove is also opened inside the limiting buckle block, and the outer wall of the connecting convex ring is fitted to the inner wall of the reset support groove.

[0012] In at least some embodiments, the limiting structure also includes a spring and a pull handle, the outer side surface of the internal connecting convex ring of the reset support groove is also provided with a spring, and one end of the limiting plug is inserted into the limiting socket, and the other end of the limiting plug is fixedly connected to the pull handle.

[0013] In at least some embodiments, a serial port connection device is fixedly installed in the bottom cavity, and the serial port connection device is used to collect data based on the Modbus format; an IO port connection device is fixedly installed in the bottom cavity, and the IO interface connection device is used to collect data based on the GPIO format; a network port connection device is fixedly installed in the bottom cavity, and the network port connection device is used to collect data based on the SNMP format.

[0014] The utility model provides a chassis for a rail transit electromechanical equipment monitoring and control device, and its beneficial effects are:

[0015] By setting up a heat dissipation component, when the monitoring chassis is running, the internal components generate heat. At this time, the first motor is started to cooperate with the drive shaft and fan blades to dissipate the heat of the components inside the monitoring chassis, and then the second motor, rotating screw, fixed support block, threaded hole, movable carrier block, guide slide bar, and limit slide groove are used to drive the movable carrier block to move, so that the fan blades blow air evenly to the internal components, thereby comprehensively dissipating the heat of the internal components and avoiding the problem of some internal components still heating up due to insufficient heat dissipation.

[0016] By setting a limit structure and the top shell of the chassis, the internal components in the chassis can be protected to prevent foreign objects from falling and hitting the internal components. Then, through the cooperation of the limit buckle block, the insertion slot, the insertion block, the limit socket and the limit plug column, the top shell of the chassis can be easily opened, making it convenient for maintenance personnel to inspect the internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the interior of the chassis of the utility model after the top shell is opened.

[0019] Figure 3 It is a schematic diagram of the heat dissipation component of the utility model.

[0020] Figure 4 It is a schematic diagram of the interior of the movable carrier of the utility model after being cut open.

[0021] Figure 5 It is a schematic diagram of a limit buckle block of the utility model.

[0022] Figure 6 It is a cross-sectional schematic diagram of a position limiting buckle block of the utility model.

[0023] Figure 7 It is a schematic structural diagram of the chipset of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0025] 1. Chassis bottom shell;

[0026] 101, bottom cavity; 1011, first hinge ear;

[0027] 102, chassis top shell; 1021, top cavity; 1022, second hinged ear;

[0028] 103, first hinge shaft column;

[0029] 1041, serial port connection device; 1042, IO port connection device; 1043, network port connection device;

[0030] 105. Chipset;

[0031] 2. Heat dissipation components;

[0032] 201, fixing the carrier frame;

[0033] 202, moving carrier; 2021, guide slide; 2022, limit slide; 2023, mounting support groove; 2024, first motor; 2025, drive belt shaft; 2026, fan blade;

[0034] 203, fixed support block; 2031, threaded hole; 2032, rotating screw rod; 2033, second motor;

[0035] 3. Limiting structure;

[0036] 301, third hinged ear;

[0037] 302, limit buckle block; 3021, fourth hinged ear; 3022, insertion slot; 3023, insertion block; 3024, limit plug hole;

[0038] 303, sliding support hole; 3031, limiting plug column; 3032, connecting convex ring; 3033, reset support groove; 3034, spring; 3035, pull handle;

[0039] 304. Second articulated shaft column. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0041] Embodiment 1: as attached Figure 1 To Attachment Figure 6 As shown:

[0042] The utility model provides a chassis for a device for monitoring and controlling electromechanical equipment of rail transportation, comprising a chassis bottom shell 1;

[0043] A bottom cavity 101 is provided inside the chassis bottom shell 1, and first hinge ears 1011 are fixedly connected at both ends of one side of the chassis bottom shell 1, and a chassis top shell 102 is provided on the top of the chassis bottom shell 1, and a top cavity 1021 is provided inside the chassis top shell 102, and a heat dissipation component 2 is provided inside the top cavity 1021, and the heat dissipation component 2 includes a fixed carrier frame 201, a movable carrier block 202, a guide slide bar 2021, a limiting slide groove 2022, an installation support groove 2023, a first motor 2024, a driving belt shaft 2025, a fan blade 2026, a fixed support block 203, a threaded hole 2031, a rotating screw rod 2032 and a second motor 2033, and a fixed carrier is fixedly installed inside the top cavity 1021. Frame 201, and the fixed carrier frame 201 is in the shape of a Chinese character "J", and at the same time, movable carrier blocks 202 in opposite directions are arranged on both sides of the fixed carrier frame 201, and guide slide bars 2021 are fixedly connected on both sides of the movable carrier block 202, and a limited slide groove 2022 is provided on the inner side of the fixed carrier frame 201, and at the same time, the guide slide bar 2021 is slidably installed in the limited slide groove 2022, and an installation support groove 2023 is provided inside the movable carrier block 202, and a first motor 2024 is assembled inside the installation support groove 2023, and at the same time, a driving end of the first motor 2024 is fixedly connected to one end of a driving belt shaft 2025, and a fan blade 2026 is fixedly connected to the other end of the driving belt shaft 2025, and at the same time, the movable carrier block 202 is fixedly connected to the guide slide bar 2021 ... The top of the block 202 is fixedly connected with a fixed support block 203, a threaded hole 2031 is opened at the midpoint of the fixed support block 203, and a rotating screw 2032 is meshed and assembled in the threaded hole 2031, and the ends of the rotating screw 2032 are fixedly connected to the second motor 2033, and the second motor 2033 is fixedly installed at the ends in opposite directions on both sides of the fixed carrier frame 201, and a second hinged ear 1022 is fixedly connected to the middle of one side of the chassis top shell 102, and the second hinged ear 1022 is aligned with the first hinged ear 1011, and the second hinged ear 1022 is hinged to the first hinged ear 1011 through the first hinge shaft column 103. When the chassis is running, the internal components generate heat, which is Start the first motor 2024 to drive the drive shaft 2025 to rotate, and then the drive shaft 2025 drives the fan blades 2026 to rotate, thereby blowing air to dissipate heat to the internal components, and then start the second motor 2033 to drive the rotating screw rod 2032 to rotate, and then the rotating screw rod 2032 rotates and engages with the threaded hole 2031 inside the fixed support block 203, but the fixed support block 203 is connected to the movable carrier block 202, and the movable carrier block 202 is limited and guided in the limit slide groove 2022 by the guide slide bar 2021, so that the rotating screw rod 2032 drives the movable carrier block 202 to move, and then the first motor 2024 cooperates with the fan blades 2026 to evenly blow air to dissipate heat to the internal components.

[0044] Embodiment 2: Based on Embodiment 1, Figure 2 , Figure 5 and Figure 6 As shown, the front end of the chassis bottom shell 1 is provided with a limiting structure 3, the limiting structure 3 includes a third hinged ear 301, a limiting buckle block 302, a fourth hinged ear 3021 and a second hinge shaft column 304, the front end of the chassis bottom shell 1 is fixedly connected with the third hinged ear 301 on both sides, and the front end of the chassis bottom shell 1 is also provided with a limiting buckle block 302, and the fourth hinged ear 3021 is fixedly connected to the middle of the bottom of one end of the limiting buckle block 302, and the fourth hinged ear 3021 is hingedly connected to the third hinged ear 301 through the second hinge shaft column 304, the limiting structure 3 also includes an insertion slot 3022, an insertion block 3023 and a limiting plug hole 3024, the limiting buckle block 3 02 is provided with an insertion slot 3022, and the front ends of the chassis top shell 102 are fixedly connected with the insertion blocks 3023, and the outer end of the insertion block 3023 is provided with a limited insertion hole 3024. The limiting structure 3 also includes a sliding support hole 303, a limiting plug column 3031, a connecting convex ring 3032 and a reset support groove 3033. A through sliding support hole 303 is provided on one side of the limiting buckle block 302, and the limiting plug column 3031 is slidably installed inside the sliding support hole 303, and the outer wall of the limiting plug column 3031 is fixedly connected with the connecting convex ring 3032, and the reset support groove 3033 is also provided inside the limiting buckle block 302. 33, at the same time, the outer wall of the connecting convex ring 3032 is attached to the inner wall of the reset support groove 3033, the limiting structure 3 also includes a spring 3034 and a handle 3035, the outer side surface of the internal connecting convex ring 3032 of the reset support groove 3033 is also provided with a spring 3034, and one end of the limiting plug column 3031 is inserted into the limiting socket 3024, and the other end of the limiting plug column 3031 is fixedly connected with the handle 3035, by pulling the handle 3035, the limiting plug column 3031 is driven to disengage from the limiting socket 3024, and then the limiting buckle block 302 is flipped down through the second hinge shaft column 304, and then the chassis top shell 102 can be connected through the first hinge The shaft column 103 is opened to facilitate the inspection of the internal components. When you want to close the case, first buckle the top shell 102 of the chassis, and pull the handle 3035 to drive the limit pin 3031 to move. At this time, the limit pin 3031 drives the connecting convex ring 3032 to squeeze the spring 3034 in the reset support groove 3033, and then the limit buckle block 302 is flipped up to buckle the plug block 3023 into the insertion groove 3022, and then the handle 3035 is released to push the connecting convex ring 3032 to move under the elastic force of the spring 3034, and then the connecting convex ring 3032 drives the limit pin 3031 to be inserted into the limit socket 3024, and the closing is completed.

[0045] Embodiment 3: The existing physical model of the monitoring device of the rail transit electromechanical equipment has the problem of diverse standards. Since the existing physical model of the monitoring device of the rail transit electromechanical equipment adopts multiple standards, this leads to high construction costs for the acquisition and control scheme of the electromechanical equipment, long implementation cycle and great maintenance difficulty. In order to solve this technical problem. In a preferred embodiment, a serial port connection device 1041 is fixedly installed in the bottom cavity 101. The serial port connection device (also referred to as a serial port device in some documents) is a well-known technology in the art. For example, some well-known serial port connection devices have models such as EKI-1361-1, ATS48C21Q, ATS48C21Q, etc. The serial port connection device 1041 is used for data acquisition based on the Modbus format, wherein the Modbus format is a data format well-known in the art, and a specific introduction can be obtained by searching the Modbus format on the Internet. In addition, an IO port connection device 1042 is fixedly installed in the bottom cavity 101. The IO port connection device 1042 is a well-known technology in the art. For example, there are a large number of introductions to IO port connection devices on the Internet. The IO interface connection device can also refer to the prior art CN210143018U or CN201369796Y. The IO interface connection device 1042 is used for data collection based on the GPIO format. The specific introduction can be obtained by searching the GPIO format on the Internet. A network port connection device 1043 is fixedly installed in the bottom cavity 101. The network port connection device 1043 can be an Ethernet network port connection device. The network port connection device 1043 is a well-known technology in the art. The network port connection device 1043 is used for data collection based on the SNMP format, where SNMP refers to the Simple Network Management Protocol, which was originally called the Simple Gateway Monitoring Protocol (SGMP). It was first proposed by the IETF research group. On the basis of the SGMP protocol, a new management information structure and a management information base are added to make SGMP more comprehensive. Simplicity and extensibility are embodied by SNMP, which includes a database type (Database Schema), an application layer protocol (Application Layer Protocol) and some data files.

[0046] In addition, a chipset 105 is fixedly installed in the bottom cavity 101. The chipset 105 may be a chipset consisting of a plurality of chips. Figure 7, the chipset 105 may include a data transmission module 1051, wherein the data transmission module 1051 may be an independent programmable logic controller PLC or a field programmable gate array FPGA, wherein the data transmission module 1051 is configured to: receive the model configuration of the object model through the MQTT protocol, wherein the model configuration of the object model includes the configured device type; wherein the MQTT protocol refers to Message Queuing Telemetry Transport, which is a message protocol based on the publish / subscribe paradigm under the ISO standard (ISO / IEC PRF 20922). It works on the TCP / IP protocol family and is a publish / subscribe message protocol designed for remote devices with low hardware performance and poor network conditions.

[0047] The chipset 105 may include a data access module 1052 , wherein the data access module 1052 may be an independent programmable logic controller PLC or a field programmable gate array FPGA, wherein the data access module 1052 is configured to: receive device data based on multiple protocols via multiple connected devices;

[0048] The chipset 105 may include a physical model matching module 1053, wherein the physical model matching module 1053 may be an independent programmable logic controller PLC or field programmable gate array FPGA, wherein the physical model matching module is configured to: automatically match the device physical model according to the device type after receiving the device data;

[0049] The physical model matching module 1053 is further configured to: if the physical model matching is successful, notify the physical model matching module, wherein the physical model matching module 1053 is configured to: perform physical model conversion according to the configured device type to obtain standard physical model data, and then send the standard physical model data to the data transmission module 1051 after the conversion is completed, and the data transmission module 1051 uses the MQTT protocol to send the standard physical model data to the receiving end;

[0050] The physical model matching module 1053 is also configured to automatically record an error log if the physical model matching is unsuccessful, and notify the receiving end so that the receiving end sends the corresponding physical model to update the physical model library.

[0051] In a further embodiment, the physical model matching module 1053 is further configured to: after receiving the physical model update physical model library of the corresponding physical model, automatically synchronize the local physical model configuration library, and recheck whether the physical model is successfully matched, and if the physical model can be successfully matched after the recheck, perform model matching according to the new physical model library;

[0052] The chipset 105 further includes: an alarm module 1054, wherein the alarm module 1054 may be an independent programmable logic controller PLC, wherein the alarm module 1054 is configured to: while determining that the object model is successfully matched, synchronously verify the alarm rule configuration in the object model, and automatically trigger a data alarm if the alarm requirement is met, and transmit the alarm data to the receiving end through the MQTT protocol;

[0053] In a further embodiment, performing physical model conversion according to the configured device type to obtain standard physical model data includes: converting device data based on Modbus format into standard physical model data; converting device data based on GPIO format into standard physical model data; converting device data based on SNMP format into standard physical model data; wherein the standard physical model data is device data based on JSON format; wherein, after performing physical model conversion on the configured device type to obtain standard physical model data, the standard physical model data is stored locally.

[0054] The technical effect of Example 3 is: by forming various types of electromechanical equipment of rail transit into various standard equipment object models and designing a universal pluggable access device, standardized definitions of equipment attributes, methods and data are realized. Through this definition, standardized access, data monitoring and equipment control of rail transit electromechanical equipment are realized, thereby reducing the system's R&D investment, improving the project implementation efficiency, and reducing the system's operation and maintenance difficulty.

[0055] The specific usage and function of this embodiment are as follows:

[0056] In the present invention, when the chassis is running, the internal components generate heat, and the first motor 2024 is started to drive the drive shaft 2025 to rotate, and then the drive shaft 2025 drives the fan blades 2026 to rotate, so as to blow air to dissipate heat for the internal components, and then the second motor 2033 is started to drive the rotating screw 2032 to rotate, and then the rotating screw 2032 is engaged with the threaded hole 2031 inside the fixed support block 203, but the fixed support block 203 is connected to the movable carrier 202, and the movable carrier 202 is limited in the limit slide groove 22 by the guide slide bar 2021. Guide, so that the rotating screw rod 2032 drives the movable carrier block 202 to move, and then the first motor 2024 cooperates with the fan blades 2026 to evenly blow air to dissipate heat to the internal components, so as to avoid the problem of insufficient heat dissipation causing some internal components to still heat up. When an internal component fails, the handle 3035 can be pulled to drive the limit plug 3031 to disengage from the limit hole 3024, and then the limit buckle block 302 can be flipped down through the second hinge shaft column 304, and then the chassis top shell 102 can be opened through the first hinge shaft column 103, so as to facilitate the inspection and maintenance of the internal components.

Claims

1. A chassis for a rail transit electromechanical equipment monitoring and control device, comprising a chassis bottom shell (1); The chassis bottom shell (1) has a bottom cavity (101) formed inside, and first hinge ears (1011) are fixedly connected to both ends of one side of the chassis bottom shell (1), and a chassis top shell (102) is formed on the top of the chassis bottom shell (1), and a top cavity (1021) is formed inside the chassis top shell (102), and a heat dissipation component (2) is formed inside the top cavity (1021), and the characteristics are: The heat dissipation component (2) comprises a fixed carrier frame (201), a movable carrier block (202), a guide slide bar (2021), a limiting slide groove (2022), an installation support groove (2023), a first motor (2024), a driving belt shaft (2025), a fan blade (2026), a fixed support block (203), a threaded hole (2031), a rotating screw rod (2032) and a second motor (2033). The interior of the top cavity (1021) is fixedly installed with a fixed carrier frame (201), and the fixed carrier frame (201) is in a shape of a letter "J". At the same time, movable carrier blocks (202) in opposite directions are arranged on both sides of the fixed carrier frame (201). The two sides of the movable carrier block (202) are fixedly connected with guide slide bars (2021), and the inner side surface of the fixed carrier frame (201) is provided with a limiting slide groove (2022). At the same time, the guide slide bar (2021) fits the sliding installation Installed in the limiting slide groove (2022), the movable carrier (202) is provided with an installation support groove (2023) inside, and the first motor (2024) is installed inside the installation support groove (2023), and the driving end of the first motor (2024) is fixedly connected to one end of the driving belt shaft (2025), and the other end of the driving belt shaft (2025) is fixedly connected to the fan blade (2026), and the top of the movable carrier (202) is fixedly connected to the fixed support block (203), and a threaded hole (2031) is provided at the midpoint of the fixed support block (203), and a rotating screw (2032) is meshedly installed in the threaded hole (2031), and the end of the rotating screw (2032) is fixedly connected to the second motor (2033), and the second motor (2033) is fixedly installed on the ends of the two opposite directions of the fixed carrier frame (201).

2. A chassis for a rail transit electromechanical equipment monitoring and control device as claimed in claim 1, characterized in that: A second hinged ear (1022) is fixedly connected to the middle of one side of the chassis top shell (102), and the second hinged ear (1022) is aligned with the first hinged ear (1011), and the second hinged ear (1022) and the first hinged ear (1011) are hingedly connected via a first hinge shaft column (103).

3. A chassis for a rail transit electromechanical equipment monitoring and control device as claimed in claim 1, characterized in that: The front end of the chassis bottom shell (1) is provided with a limiting structure (3), the limiting structure (3) comprising a third hinged ear (301), a limiting buckle block (302), a fourth hinged ear (3021) and a second hinged shaft column (304), the third hinged ear (301) is fixedly connected to both sides of the front end of the chassis bottom shell (1), and the front end of the chassis bottom shell (1) is also provided with a limiting buckle block (302), and the fourth hinged ear (3021) is fixedly connected to the middle of the bottom of one end of the limiting buckle block (302), and the fourth hinged ear (3021) is hingedly connected to the third hinged ear (301) via the second hinged shaft column (304).

4. A chassis for a rail transit electromechanical equipment monitoring and control device as claimed in claim 3, characterized in that: The limiting structure (3) further comprises an insertion slot (3022), an insertion block (3023) and a limiting insertion hole (3024); the limiting buckle block (302) is provided with an insertion slot (3022) inside, and the front ends of the chassis top shell (102) are fixedly connected with the insertion blocks (3023), and the limiting insertion hole (3024) is provided at one end of the outer side of the insertion block (3023).

5. The chassis for the rail transit electromechanical equipment monitoring and control device according to claim 3, characterized in that: The limiting structure (3) further comprises a sliding support hole (303), a limiting plug column (3031), a connecting convex ring (3032) and a reset support groove (3033); a through-type sliding support hole (303) is provided on one side of the limiting buckle block (302); a limiting plug column (3031) is slidably installed inside the sliding support hole (303); an outer side wall of the limiting plug column (3031) is fixedly connected with a connecting convex ring (3032); a reset support groove (3033) is further provided inside the limiting buckle block (302); and an outer side wall of the connecting convex ring (3032) is fitted to an inner wall of the reset support groove (3033).

6. A chassis for a rail transit electromechanical equipment monitoring and control device as claimed in claim 5, characterized in that: The limiting structure (3) also includes a spring (3034) and a pull handle (3035), and a spring (3034) is also provided on the outer side surface of the internal connection convex ring (3032) of the reset support groove (3033), and one end of the limiting plug column (3031) is inserted into the limiting plug hole (3024), and the other end of the limiting plug column (3031) is fixedly connected to the pull handle (3035).

7. A chassis for a rail transit electromechanical equipment monitoring and control device as claimed in claim 6, characterized in that: A serial port connection device (1041) is fixedly installed in the bottom cavity (101), and the serial port connection device (1041) is used to collect data based on the Modbus format; An IO port connection device (1042) is fixedly installed in the bottom cavity (101), and the IO port connection device (1042) is used to collect data based on the GPIO format; A network port connection device (1043) is fixedly installed in the bottom cavity (101), and the network port connection device (1043) is used for data collection based on the SNMP format.

Images