Distributed DTU interval unit hardware system with salt mist monitoring function

Abstract

The invention provides a distributed DTU interval unit hardware system with a salt mist monitoring function, and relates to the technical field of distributed DTU equipment, the distributed DTU interval unit hardware system comprises a mounting mechanism, the mounting mechanism comprises a casing and a mounting rack, and the mounting rack is fixedly arranged on the casing; the monitoring mechanism comprises an overturning piece, a monitoring piece and a driving device, the overturning piece is rotationally installed on the machine shell, the monitoring piece is fixedly arranged on the overturning piece, the overturning piece is of an L-shaped structure, and the driving device is installed on the machine shell and used for driving the overturning piece to conduct overturning adjustment. According to the scheme, when the salt mist environment in the environment needs to be monitored, the driving device is started, the driving device conveniently drives the overturning piece to rotate, the overturning piece drives the monitoring piece to synchronously rotate, and the monitoring piece is switched from the storage state to the unfolding use state when rotating, so that the salt mist environment in the environment is monitored. And the use environment can be conveniently monitored after the equipment is installed and used.

Description

Technical Field

[0001] The invention relates to the technical field of distributed DTU equipment, and in particular to a distributed DTU interval unit hardware system with a salt spray monitoring function. Background Art

[0002] The hardware system of distributed DTU interval units usually consists of a common unit and several interval units. A typical design is to adopt a "tower-shaped" structure as a whole, which is divided into two units, the upper and lower units. The bottom unit includes the power supply part, the measurement and line loss metering sampling part, the external bus communication part, and the open input and output part; the top unit includes the power supply part, ADC, metering control part, communication control part, and main control module part.

[0003] In the relevant prior art, publication number CN212517931U discloses a shell applied to a distributed DTU spacing unit, including a display mask, a panel, a control circuit board, a shell, a sealing pressure plate and a bracket; the display mask is tightly connected to the front side of the panel through an adhesive layer; the bracket is fixed to the back of the panel; the shell is buckled on the outside of the bracket; the control circuit board is arranged in the space between the panel and the shell, for realizing power distribution control; the sealing pressure plate is fixed to the shell.

[0004] Due to the different environments in different regions, when used in coastal areas with high salt fog conditions, it is necessary to consider not only the structural protection issue, but also the salt fog environment monitoring issue. The system structure using the above-mentioned distributed DTU interval units is not convenient for monitoring the salt fog environment within the installation range during system installation and operation.

[0005] Therefore, it is necessary to provide a decentralized DTU interval unit hardware system with salt spray monitoring function to solve the above technical problems. Summary of the invention

[0006] The invention provides a distributed DTU interval unit hardware system with a salt fog monitoring function, which solves the problem in the related art that it is inconvenient to monitor the salt fog environment during the operation of the distributed DTU interval unit system.

[0007] In order to solve the above technical problems, the present invention provides a distributed DTU interval unit hardware system with salt spray monitoring function, comprising: A mounting mechanism, the mounting mechanism comprising a housing and a mounting frame, the mounting frame being fixedly mounted on the housing; A monitoring mechanism, the monitoring mechanism comprising a flipping member, a monitoring member and a driving device, the flipping member being rotatably mounted on the housing, the monitoring member being fixed on the flipping member, the flipping member being in an L-shaped structure, the driving device being mounted on the housing, and the driving device being used to drive the flipping member to flip and adjust; A protection mechanism, the protection mechanism comprising a protection plate and a switch plate, the protection plate is fixedly mounted on the top of the mounting frame, and the switch plate is slidably mounted between the protection plate and the mounting frame; A control mechanism is integrally mounted on the casing.

[0008] Preferably, the control mechanism comprises a control mainboard and a maintenance port, the control mainboard is fixed in the housing, and the maintenance port is integrated and installed on the front of the housing and is connected to the control mainboard signal; A display screen, buttons and indicator lights are integrated on the front of the housing, and the display screen, buttons and indicator lights are all connected to the control mainboard signal.

[0009] Preferably, the driving device comprises a gear shaft, a shrinkable tube, a rack and a pusher, one end of the gear shaft passes through the housing and is fixedly connected to the rotating part of the flip member, the other end of the gear shaft is aligned with the lifting range of the rack, the two ends of the shrinkable tube are fixedly connected to the mounting frame and the rack, and the pusher is fixedly arranged on the switch plate; The pushing member is aligned with the lifting range of the rack.

[0010] Preferably, it further comprises a limiting mechanism, the limiting mechanism comprises an elastic telescopic member and a support plate, the elastic telescopic member is embedded and installed on the housing, the elastic telescopic member elastically connects the housing and the support plate, and the support plate abuts against the rack; When the rack moves upward and drives the flipping member to flip and adjust, the elastic telescopic member adaptively pushes the support plate to extend and support the bottom of the rack.

[0011] Preferably, it also includes a cleaning bar, which is fixed on the switch plate and is aligned with the range of the display screen.

[0012] Preferably, it further comprises an adsorption mechanism, the adsorption mechanism comprises a first magnetic attraction member and a second magnetic attraction member, the first magnetic attraction member is embedded and installed on the mounting frame, and the second magnetic attraction member is embedded and installed on the top of the switch plate; When the first magnetic attraction component contacts the second magnetic attraction component, the first magnetic attraction component and the second magnetic attraction component are magnetically attracted.

[0013] Preferably, the mounting mechanism further comprises an isolation plate, which is fixed in the housing and isolates the control main board and the flip member.

[0014] Preferably, the protective plate is a transparent structure and is aligned with the display range of the display screen.

[0015] Preferably, the switch plate is a transparent structure and is aligned with the operating range of the button.

[0016] Preferably, a mounting hole is provided on the mounting frame.

[0017] Compared with the related art, the distributed DTU interval unit hardware system with salt spray monitoring function provided by the present invention has the following beneficial effects: By installing a monitoring component on the housing, when it is necessary to monitor the salt spray environment in the environment, the driving device is started, the driving device conveniently drives the flip component to rotate, the flip component drives the monitoring component to rotate synchronously, and the monitoring component switches from a storage state to an unfolded use state when rotating, so that the equipment can monitor the use environment after installation and use; When the display and operation equipment of the device is not needed, the switch plate is closed to form a protective structure; when it is needed, the switch plate is manually pushed upward to reduce the interference of the external environment on the operation panel and improve the adaptability of the device to the installation and use environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of the hardware system of the distributed DTU interval unit with salt spray monitoring function provided by the present invention; Figure 2 for Figure 1 A front view of section AA is shown; Figure 3 for Figure 2 The right side view of section BB is shown; Figure 4 for Figure 1 A three-dimensional view of the protective plate and switch plate removed; Figure 5 for Figure 3 An enlarged schematic diagram of part A is shown; Figure 6 for Figure 5 A front view of the gear shaft and rack distribution shown; Figure 7 for Figure 5 The structural schematic diagram of the limiting member shown; Figure 8 for Figure 3 The state diagram of the switch plate shown in full use; Fig. 9 for Figure 8 An enlarged schematic diagram of part B is shown; Fig.10 The switch principle diagram of the switch board of the distributed DTU interval unit hardware system with salt spray monitoring function provided by the present invention, wherein: Fig.10 (a) is the right side view of the switch panel in the closed state. Fig.10 (b) is the right view of the switch panel during opening. Fig.10 (c) is the right view of the monitoring component after the switch panel is opened. Fig.10 (d) in Fig.10 (b) is a partial enlarged schematic diagram. Fig.10 The (e) in Fig.10 (c) A partial enlarged schematic diagram; Fig.11 for Fig.10 The rotation principle diagram of the gear shaft is shown in FIG. Fig.11 (a) in the equation is Fig.10 The front view of the connection between the rack and the gear shaft in the state (b), Fig.11 (b) in the equation is Fig.10 The front view of the connection state between the rack and the gear shaft in the state (c); Fig.12 for Fig.10 The schematic diagram of the rotation of the flip member is shown, wherein: Fig.12 (a) in the equation is Fig.10 The front view of the monitoring component in the state (b) is shown in FIG. Fig.12 (b) in the equation is Fig.10 Front view of the monitoring component in state (c).

[0020] Description of Figure Numbers: 1. Installation mechanism; 11. Casing; 12. Installation frame; 13. Isolation plate; 111. Display screen; 112. Button; 113. Indicator light; 2. Monitoring mechanism; 21. Turning member; 22. Monitoring member; 23. Driving device; 231. Gear shaft; 232. Contraction tube; 233. Rack; 234. Pushing member; 3. Protective mechanism; 31. Protective plate; 32. Switch plate; 4. Control mechanism; 41. Control main board; 42. Maintenance port; 5. Limiting mechanism; 51. Elastic expansion member; 52. Support plate; 6. Cleaning strips; 7. Adsorption mechanism; 71. First magnetic attraction member; 72. Second magnetic attraction member.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The invention provides a decentralized DTU interval unit hardware system with a salt spray monitoring function.

[0024] Please refer to Figures 1 to 4 In the first embodiment of the present invention, a distributed DTU interval unit hardware system with salt spray monitoring function includes: A mounting mechanism 1, the mounting mechanism 1 comprising a housing 11 and a mounting frame 12, the mounting frame 12 being fixedly mounted on the housing 11; The monitoring mechanism 2 includes a flip member 21, a monitoring member 22 and a driving device 23. The flip member 21 is rotatably mounted on the housing 11, the monitoring member 22 is fixed on the flip member 21, the flip member 21 is L-shaped, and the driving device 23 is mounted on the housing 11. The driving device 23 is used to drive the flip member 21 to flip and adjust; A protection mechanism 3, the protection mechanism 3 comprises a protection plate 31 and a switch plate 32, the protection plate 31 is fixedly mounted on the top of the mounting frame 12, and the switch plate 32 is slidably mounted between the protection plate 31 and the mounting frame 12; The control mechanism 4 is integrally mounted on the housing 11 .

[0025] In this embodiment, the monitoring component 22 is integrated with a salt spray environment detection sensor, a temperature sensor and a humidity sensor; when the monitoring component 22 is turned on and used, it is aligned within the use environment range of the casing 11, so as to facilitate the monitoring of the temperature, humidity and salt spray environment in the environment during the operation of the equipment.

[0026] The monitoring element 22 includes two usage states: In the storage state, the monitoring component 22 is located in the housing 11, the flip component 21 is sealed and connected to the housing 11, and the monitoring component 22 is kept in a closed state, which is convenient for packaging and transportation of the device and reduces the occupied space; In the use state, the monitoring component 22 is located outside the housing 11, the flip component 21 is sealed and connected to the housing 11, and the monitoring component 22 is started synchronously with the start of the control mechanism 4, which is convenient for normal use after the equipment is installed.

[0027] Please refer to Figure 2 and Figure 5 The control mechanism 4 includes a control mainboard 41 and a maintenance port 42. The control mainboard 41 is fixed in the housing 11. The maintenance port 42 is integrated and installed on the front of the housing 11 and is connected to the control mainboard 41 by signal. The front of the housing 11 is integrated with a display screen 111, a button 112 and an indicator light 113, and the display screen 111, the button 112 and the indicator light 113 are all connected to the control mainboard 41 by signal, so as to provide support for operation, status display and data display when the equipment is running; after the computer equipment is connected to the maintenance port 42, it is convenient to perform maintenance on the system of the control mainboard 41.

[0028] In this embodiment, the housing 11 is equipped with a wiring port (not shown) that matches the control mainboard 41 to facilitate communication connection of the device.

[0029] The display screen 111, the button 112 and the indicator light 113 on the casing 11 are respectively connected to the control mechanism 4 by signal, so as to provide support for operation and display; the monitoring component 22 is connected to the control mechanism 4 by signal, and when the monitoring component 22 is in the storage state, the monitoring component 22 is not started synchronously with the control mechanism 4; when the monitoring component 22 is in the use state, the monitoring component 22 is started synchronously with the control mechanism 4.

[0030] The protection plate 31 is a transparent structure and is aligned with the display range of the display screen 111 .

[0031] The switch plate 32 is a transparent structure and is aligned with the operating range of the button 112 .

[0032] Regardless of whether the switch panel 32 is open or closed, the content of the display interface of the display screen 111 can be observed normally.

[0033] By installing a monitoring component 22 on the housing 11, when it is necessary to monitor the salt spray environment in the environment, the driving device 23 is started, and the driving device 23 conveniently drives the flip component 21 to rotate, and the flip component 21 drives the monitoring component 22 to rotate synchronously. When the monitoring component 22 rotates, it switches from a storage state to an unfolded use state, which facilitates the equipment to monitor the use environment after installation and use; When the display and operation equipment of the device is not needed, the switch plate 32 is closed to form a protective structure; when it is needed, the switch plate 32 is manually pushed upward to reduce the interference of the external environment on the operation panel and improve the adaptability of the device to the installation and use environment.

[0034] In an optional implementation of the present embodiment, the driving device 23 may be an independent motor structure, which is used for directly controlling the flipping adjustment of the flip member 21 with a single driving power.

[0035] In another optional implementation of this embodiment, please refer to Figure 5 and Figure 6 The driving device 23 includes a gear shaft 231, a shrinkable tube 232, a rack 233 and a pusher 234. One end of the gear shaft 231 passes through the housing 11 and is fixedly connected to the rotating part of the flip member 21. The other end of the gear shaft 231 is aligned with the lifting range of the rack 233. Both ends of the shrinkable tube 232 are fixedly connected to the mounting frame 12 and the rack 233. The pusher 234 is fixedly arranged on the switch plate 32. The pushing member 234 is aligned with the lifting range of the rack 233 .

[0036] In this embodiment, a movable gap is set between the mounting frame 12 and the housing 11, and the movable gap provides space for the movable adjustment of the rack 233, the gear shaft 231, the shrink tube 232 and the pushing member 234.

[0037] In this embodiment, when the flip member 21 is in a closed state, the connection between the flip member 21 and the housing 11 is slidingly sealed, and the rotating connection between the flip member 21 and the housing 11 is a damping structure. When there is no driving power, the flip member 21 maintains the stability of closing.

[0038] After the equipment is installed, the switch plate 32 is manually pushed upward so that the switch plate 32 is gradually opened for maintenance or button operation; in the process of the switch plate 32 moving upward, the switch plate 32 also synchronously drives the pushing member 234 to move upward, the pushing member 234 moves upward and abuts against the rack 233, the rack 233 moves upward and engages with the gear shaft 231; the pushing member 234 drives the rack 233 to continue to move upward, the rack 233 drives the gear shaft 231 to rotate, and when the gear shaft 231 rotates, it drives the flip member 21 and the monitoring member 22 to rotate synchronously, so that the monitoring member 22 switches from the storage state to the use state.

[0039] Finally, the monitoring component 22 is deployed and used synchronously during the process of the switch plate 32 switching from the closed state (protection mode) to the open state (use mode).

[0040] Similarly, in the present embodiment, when the switch plate 32 is switched from the open state to the closed state, the monitoring component 22 is closed and retracted simultaneously.

[0041] It is convenient to open the switch plate 32 when monitoring is needed, so as to open the monitoring component 22 when salt spray environment monitoring is needed.

[0042] Please refer to Figure 5 and Figure 7 , further comprising a limiting mechanism 5, the limiting mechanism 5 comprising an elastic telescopic member 51 and a support plate 52, the elastic telescopic member 51 being embedded and mounted on the housing 11, the elastic telescopic member 51 being elastically connected to the housing 11 and the support plate 52, the support plate 52 being in contact with the rack 233; When the rack 233 moves upward and drives the flip member 21 to flip and adjust, the elastic telescopic member 51 adaptively pushes the support plate 52 to extend and support the bottom of the rack 233 .

[0043] The housing 11 is provided with a connecting groove structure for installing the limiting mechanism 5 to provide support for the installation of the elastic telescopic member 51 and the support plate 52 . The support plate 52 is slidably connected to the housing 11 through the connecting groove structure.

[0044] In this embodiment, the extendable range of the support plate 52 does not exceed the bottom range of the rack 233. After being extended, the support plate 52 can be horizontally inserted into the bottom of the rack 233 to provide support and limitation for the rack 233. The extending range of the support plate 52 is staggered with the pushing member 234, and the running trajectories of the pushing member 234 and the support plate 52 do not affect each other.

[0045] During the upward movement of the rack 233, the support plate 52 maintains abutment contact with the rack 233; however, when the rack 233 drives the flip member 21 and the monitoring member 22 to rotate to the use state through the gear shaft 231, the bottom of the rack 233 is separated from the support plate 52, and the elastic telescopic member 51 adaptively pushes the support plate 52 to extend and support the bottom of the rack 233; it is convenient to lock the monitoring member 22 in the use state after opening the monitoring member 22 for the first time; after locking, the switch plate 32 can be opened and closed freely, and the two do not affect each other.

[0046] It is convenient to control the adaptive rotation adjustment of the monitoring component 22 by lifting and lowering the switch plate 32 when the monitoring component 22 is used for the first time; after the monitoring component 22 is rotated to the use state, the support plate 52 is supported at the bottom of the rack 233 to lock the monitoring component 22 in the use state; after locking, the switch plate 32 can be controlled separately.

[0047] Please refer to Figure 8 and Fig. 9 Preferably, it also includes a cleaning bar 6, which is fixed on the switch plate 32 and aligned with the range of the display screen 111.

[0048] The cleaning bar 6 is disposed between the display screen 111 and the switch plate 32 .

[0049] In this embodiment, the cleaning strip 6 may be a rubber wiping strip, which is used to wipe the display screen 111 during the lifting and lowering adjustment to keep the display interface of the display screen 111 clean.

[0050] When the switch plate 32 is raised or lowered, the switch plate 32 also synchronously drives the cleaning bar 6 to move up and down. When the cleaning bar 6 moves up and down, it can realize adaptive wiping and cleaning maintenance of the display interface of the display screen 111, so as to reduce the phenomenon of blurred display screen caused by the influence of the external environment after use.

[0051] Please refer again Fig. 9 Preferably, it further includes an adsorption mechanism 7, the adsorption mechanism 7 includes a first magnetic member 71 and a second magnetic member 72, the first magnetic member 71 is embedded and installed on the mounting frame 12, and the second magnetic member 72 is embedded and installed on the top of the switch plate 32; When the first magnetic member 71 contacts the second magnetic member 72 , the first magnetic member 71 and the second magnetic member 72 are magnetically attracted to each other.

[0052] After the switch plate 32 is opened upward, the first magnetic member 71 and the second magnetic member 72 are magnetically attracted to each other to maintain the stability of the open state of the switch plate 32, and no manual support is required after opening; when the switch plate 32 needs to be closed, the switch plate 32 is pulled upward, and the first magnetic member 71 and the second magnetic member 72 are controlled to separate under the action of the pulling force to achieve the closing of the switch plate 32.

[0053] Please refer again Figure 2 The mounting mechanism 1 further includes an isolation plate 13 , which is fixed in the housing 11 , and isolates the control main board 41 and the flip member 21 .

[0054] The isolation plate 13 is used to conveniently isolate the working area of ​​the control mainboard 41 from the adjustment range of the monitoring component 22, thereby preventing the external environment from affecting the working area of ​​the control mainboard 41 when the flip component 21 is rotated and adjusted, thereby maintaining the stability of the equipment operation.

[0055] Furthermore, a mounting hole (not shown) is provided on the mounting frame 12. Through the mounting hole, the mounting frame 12 and the housing 11 can be conveniently integrated and installed on the DTU cabinet.

[0056] The working principle of the distributed DTU interval unit hardware system with salt spray monitoring function provided in this embodiment is as follows: like Fig.10 (a) Fig.11 (a) and Fig.12 As shown in (a), it may be defined that in the initial state, the switch plate 32 is in a closed state, the flip member 21 is in a closed state, and the monitoring member 22 is in a stored state; Please refer to Fig.10 (a) to Fig.10 (b) to Fig.10 (c) and Fig.10 (d) to Fig.10 In (e), when the switch plate 32 is opened for the first time, the switch plate 32 is gradually switched from the closed state to the open state. After the switch plate 32 is completely opened, the first magnetic member 71 is magnetically connected to the second magnetic member 72 to maintain the opening of the switch plate 32; During the upward movement of the switch plate 32, the cleaning bar 6 slides from bottom to top along the surface of the display screen 111, and wipes and cleans the display screen 111 for maintenance; Combined with reference Fig.11 (a) to Fig.11 (b) and Fig.12 (a) to Fig.12In (b), while the switch plate 32 moves upward, the switch plate 32 drives the pusher 234 to move upward, and the pusher 234 gradually contacts the rack 233, and the pusher 234 continues to push the rack 233 upward. While the rack 233 moves upward, it drives the gear shaft 231 to rotate, and while the gear shaft 231 rotates, it drives the flip member 21 to rotate, and while the flip member 21 rotates, it drives the monitoring member 22 to rotate synchronously and be unfolded for use, so as to facilitate the adaptive flipping and opening of the monitoring member 22; When the monitoring component 22 is flipped to the use state, the elastic telescopic component 51 pushes the support plate 52 to extend and support the bottom of the rack 233, forming a locking structure, so that the monitoring component 22 is locked in the use state; after locking, the switch adjustment of the switch plate 32 no longer affects the adjustment of the monitoring component 22, which is used to maintain the locking of the monitoring component 22 in the use state.

[0057] like Fig.10 (c) Fig.10 (e) Fig.11 (b) and Fig.12 As shown in (b) in the figure, the switch plate 32 is in an open state, the flip member 21 is in an open state, the monitoring member 22 is in a use state, and the support plate 52 is supported on the bottom of the rack 233 .

[0058] Finally, when the switch board 32 is opened for the first time, the flip member 21 and the monitoring member 22 are synchronously driven to rotate and open; after the monitoring member 22 is adjusted to the use state, the support plate 52 extends and locks the use state of the monitoring member 22, so that the switch board 32 can be controlled independently. While maintaining the normal monitoring of the use environment by the monitoring member 22, the switch board 32 can also be controlled independently.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A distributed DTU interval unit hardware system with salt spray monitoring function, characterized in that: include: A mounting mechanism, the mounting mechanism comprising a housing and a mounting frame, the mounting frame being fixedly mounted on the housing; A monitoring mechanism, the monitoring mechanism comprising a flipping member, a monitoring member and a driving device, the flipping member being rotatably mounted on the housing, the monitoring member being fixed on the flipping member, the flipping member being in an L-shaped structure, the driving device being mounted on the housing, and the driving device being used to drive the flipping member to flip and adjust; A protection mechanism, the protection mechanism comprising a protection plate and a switch plate, the protection plate is fixedly mounted on the top of the mounting frame, and the switch plate is slidably mounted between the protection plate and the mounting frame; A control mechanism is integrally mounted on the casing.

2. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 1 is characterized in that: The control mechanism comprises a control mainboard and a maintenance port, wherein the control mainboard is fixed in the housing, and the maintenance port is integrated and installed on the front of the housing and is connected to the control mainboard by signal; A display screen, buttons and indicator lights are integrated on the front of the housing, and the display screen, buttons and indicator lights are all connected to the control mainboard signal.

3. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 2 is characterized in that: The driving device includes a gear shaft, a shrinkable tube, a rack and a pusher, one end of the gear shaft passes through the housing and is fixedly connected to the rotating part of the flip member, the other end of the gear shaft is aligned with the lifting range of the rack, the two ends of the shrinkable tube are fixedly connected to the mounting frame and the rack, and the pusher is fixedly arranged on the switch plate; The pushing member is aligned with the lifting range of the rack.

4. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 3 is characterized in that: It also includes a limiting mechanism, the limiting mechanism includes an elastic telescopic member and a support plate, the elastic telescopic member is embedded in the housing, the elastic telescopic member is elastically connected to the housing and the support plate, and the support plate abuts against the rack; When the rack moves upward and drives the flipping member to flip and adjust, the elastic telescopic member adaptively pushes the support plate to extend and support the bottom of the rack.

5. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 4 is characterized in that: It also includes a cleaning bar, which is fixed on the switch plate and is aligned with the range of the display screen.

6. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 5 is characterized in that: It also includes an adsorption mechanism, the adsorption mechanism includes a first magnetic attraction member and a second magnetic attraction member, the first magnetic attraction member is embedded and installed on the mounting frame, and the second magnetic attraction member is embedded and installed on the top of the switch plate; When the first magnetic attraction component contacts the second magnetic attraction component, the first magnetic attraction component and the second magnetic attraction component are magnetically attracted.

7. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 6 is characterized in that: The mounting mechanism further comprises an isolation plate, which is fixed in the housing and isolates the control main board and the flip member.

8. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 7 is characterized in that: The protection plate is a transparent structure and is aligned with the display range of the display screen.

9. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 8 is characterized in that: The switch plate is a transparent structure and is aligned with the operating range of the button.

10. The distributed DTU interval unit hardware system with salt spray monitoring function according to claim 9 is characterized in that: The mounting frame is provided with a mounting hole.

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