Protective structure of direct current screen

Abstract

The utility model relates to the technical field of DC screens, and discloses a DC screen protection structure comprising a DC screen body, a pedestal arranged below the DC screen body, and a dustproof assembly arranged at the top of the DC screen body. The dustproof assembly comprises a shell, openings are formed in the two ends of the shell, dustproof nets are detachably installed in the openings, ventilation holes are formed in the inner bottom face of the shell, fixing rings are arranged on the outer sides of the ventilation holes, wind speed sensors are installed in the fixing rings, and electric push rods are installed at the positions, on the two sides of the fixing rings, in the shell through installation plates. A baffle matched with the inner wall of the shell in size is installed at the output end of the electric push rod, and warning lamps are installed at the two ends of the shell. Direct current screens of different sizes can be installed and fixed, when a dust screen needs to be cleaned and replaced, the warning lamp is turned on, a worker is reminded to clean and replace the dust screen in time, the opening and closing states of the two openings of the shell can be adjusted through telescopic conversion of the two electric push rods, and therefore influences on normal heat dissipation of the direct current screen body are avoided.

Description

Technical Field

[0001] This utility model relates to the field of DC power supply technology, specifically a protective structure for a DC power supply. Background Technology

[0002] A DC power supply panel, also known as an intelligent maintenance-free DC power supply panel, is short for DC power supply operating system. It consists of AC power distribution units, charging module units, step-down silicon chain units, DC power supply units, power distribution monitoring units, monitoring module units, and insulation monitoring units. The monitoring host is highly integrated, using a single-board structure, and includes functions such as insulation monitoring, battery inspection, grounding line selection, battery activation, silicon chain voltage regulation, and microcomputer central signaling.

[0003] The utility model patent with publication number CN216530108U discloses a protective structure based on a fully intelligent DC power supply screen. This device can facilitate the disassembly and assembly of the filter screen shell on the top of the DC power supply screen, thereby avoiding the phenomenon of dust clogging of the filter screen, which would affect the ventilation of the filter screen and thus affect the heat dissipation effect, causing damage to the internal components of the DC power supply screen.

[0004] However, in practical applications, some scenarios involve large amounts of dust, such as mines and underground environments. Dust can easily clog the filter screen. If the filter screen is not cleaned in time, it will affect the ventilation of the filter screen and thus the heat dissipation effect. Secondly, when disassembling and cleaning the filter screen, if the DC power supply is working continuously, dust will enter the DC power supply screen, which urgently needs to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a protective structure for a DC power supply.

[0006] To solve the above problems, the technical solution of this utility model is: a protective structure for a DC power supply, including a DC power supply body, a base at the bottom of the DC power supply body, and a dustproof component at the top;

[0007] The base has a cavity inside and a positioning component for positioning the DC screen body is installed on the top. The positioning component includes movable columns movably disposed on both sides of the DC screen body and limiting plates disposed at the four corners of the DC screen body. Threaded cylinders are symmetrically fixed to both sides of the movable columns. The limiting plates have an L-shaped structure, and a screw rod that is threadedly connected to the threaded cylinder is rotatably installed on the outside of the limiting plates through a fixing block. An adjusting block is fixed to one end of the screw rod. A translation component for driving the movable columns to move is installed inside the base.

[0008] The dustproof assembly includes a U-shaped housing with openings at both ends, facing downwards. A dustproof mesh is detachably installed inside the openings via screws. A ventilation hole adapted to the air inlet of the DC power supply unit is opened on the bottom inner surface of the housing. A fixing ring is provided on the outer side of the ventilation hole, and a wind speed sensor is installed inside the fixing ring. Electric actuators are installed on both sides of the fixing ring inside the housing via mounting plates. A baffle adapted to the inner wall size of the housing is installed at the output end of the electric actuator. Warning lights are installed at both ends of the housing.

[0009] Furthermore, the movable column is fixedly connected to the two sides of the threaded cylinder with limiting cylinders, and the limiting plate is fixedly installed with a limiting rod inserted inside the limiting cylinder by a fixing block.

[0010] Furthermore, two sliding grooves are provided on the top surface of the base, and the translation component includes a bidirectional screw rod rotatably installed inside the base. Both sides of the bidirectional screw rod are threaded with drive blocks, and a handwheel is installed after one end of the bidirectional screw rod passes through the side wall of the base. The top of the drive block passes through the sliding groove and is fixedly connected to the movable column.

[0011] Furthermore, a rubber pad is provided between the DC power supply body and the base.

[0012] Furthermore, an L-shaped fixing strip is fixedly connected to the bottom of both ends of the housing near the DC screen body, and the end of the fixing strip is provided with an upward bending part. A threaded hole is opened in the middle of the movable column, and a second lead screw is installed in the threaded hole. A Z-shaped connecting strip is rotatably installed on the top of the second lead screw, and the connecting strip is provided with a downward end. The connecting strip and the fixing strip are connected by the bending part.

[0013] The advantages of this invention compared to existing technologies are as follows: This invention can install and fix DC power supplies of different sizes, and when the dust filter needs to be cleaned or replaced, the phase warning light will illuminate to remind the staff to clean and replace it in time. The opening and closing state of the two openings of the housing can be adjusted by the extension and retraction of the two electric push rods, thereby avoiding affecting the normal heat dissipation of the DC power supply body. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a structural diagram showing the connection between the base and the shell of this utility model.

[0016] Figure 3 This is a cross-sectional view of the base of this utility model.

[0017] Figure 4 This is a cross-sectional view of the casing of this utility model.

[0018] Figure 5This is a structural diagram of the connection between the fixing strip and the connecting strip of this utility model.

[0019] As shown in the figure: 1. DC power supply unit body; 2. Base; 3. Movable column; 4. Limiting plate; 5. Threaded cylinder; 6. Lead screw one; 7. Adjusting block one; 8. Housing; 9. Dustproof net; 10. Fixing ring; 11. Wind speed sensor; 12. Mounting plate; 13. Electric actuator; 14. Baffle; 15. Warning light; 16. Limiting cylinder; 17. Limiting rod; 18. Bidirectional screw; 19. Drive block; 20. Rubber pad; 21. Fixing strip; 22. Lead screw two; 23. Connecting strip; 24. Adjusting block two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 , Figure 2 As shown, a protective structure for a DC power supply includes a DC power supply body 1, a base 2 below the DC power supply body 1, and a rubber pad 20 between the DC power supply body 1 and the base 2. The base 2 has a cavity inside, and a positioning component for positioning the DC power supply body 1 is installed on the top. The positioning component includes movable columns 3 movably disposed on both sides of the DC power supply body 1 and limiting plates 4 disposed at the four corners of the DC power supply body 1. Threaded cylinders 5 are symmetrically fixed to both sides of the movable columns 3. The limiting plates 4 have an L-shaped structure, and a screw rod 6 threadedly connected to the threaded cylinder 5 is rotatably installed on the outside of the limiting plates 4 through a fixing block. An adjusting block 7 is fixedly connected to one end of the screw rod 6. Limiting cylinders 16 are fixedly connected to both sides of the threaded cylinder 5 on the side of the movable columns 3. A limiting rod 17 inserted inside the limiting cylinder 16 is fixedly installed on the outside of the limiting plates 4 through a fixing block.

[0022] By rotating the lead screw 6 using the adjusting block 7, the lead screw 6 rotates relative to the threaded cylinder 5, thereby adjusting the distance between the limiting plate 4 and the movable column 3. The base 2 prevents the DC power supply unit 1 from directly contacting the ground, thus avoiding adverse effects on the DC power supply unit 1 when the ground is wet.

[0023] like Figure 3As shown, a translation component for driving the movable column 3 to move is installed inside the base 2. Two sliding grooves are opened on the top surface of the base 2. The translation component includes a bidirectional screw 18 rotatably installed inside the base. Both sides of the bidirectional screw 18 are threadedly connected to drive blocks 19. A handwheel is installed after one end of the bidirectional screw 18 passes through the side wall of the base 2. The top of the drive block 19 passes through the sliding groove and is fixedly connected to the movable column 3.

[0024] By rotating the bidirectional screw 18 with a handwheel, the two drive blocks 19 are moved closer or further apart, thereby adjusting the distance between the two movable columns 3.

[0025] By adjusting the distance between the two movable columns 3 and the distance between the limiting plate 4 and the movable column 3, the DC power supply body 1 of different sizes can be installed and fixed.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the top of the DC power supply unit 1 is equipped with a dustproof component, which includes a U-shaped housing 8. The housing 8 has openings at both ends, with the openings facing downwards. A dustproof mesh 9 is detachably installed inside the openings by screws. A ventilation hole adapted to the air inlet of the DC power supply unit 1 is opened on the bottom inner surface of the housing 8. A fixing ring 10 is provided on the outside of the ventilation hole. A wind speed sensor 11 is installed inside the fixing ring 10. Electric push rods 13 are installed on both sides of the fixing ring 10 inside the housing 8 through mounting plates 12. A baffle 14 adapted to the inner wall size of the housing 8 is installed at the output end of the electric push rod 13. Warning lights 15 are installed at both ends of the housing 8.

[0027] When one electric actuator 13 extends, the other electric actuator 13 retracts, meaning one opening opens and the other closes. This ensures that one of the openings at both ends of the housing 8 is always in an air intake state. The wind speed sensor 11 can monitor the wind speed flowing through the fixed ring 10. When dust clogs the dustproof net 9, the wind speed will gradually decrease. When the wind speed is lower than the set value, it indicates that the dustproof net 9 needs to be cleaned or replaced. At this time, the warning light 15 on the corresponding side will light up to remind the staff to clean and replace it in time. At the same time, the opening and closing state of the two openings can be adjusted by the extension and retraction of the two electric actuators 13, thereby avoiding affecting the normal heat dissipation of the DC power supply body 1. A PLC controller can be installed in the housing 8 to realize the linkage control of the wind speed sensor 11, electric actuator 13 and warning light 15.

[0028] like Figure 2 and Figure 5As shown, L-shaped fixing strips 21 are fixedly connected to the bottom of both ends of the housing 8 near the DC screen body 1, and the ends of the fixing strips 21 are provided with upward bending parts. A threaded hole is opened in the middle of the movable column 3, and a screw rod 22 is installed in the threaded hole. A Z-shaped connecting strip 23 is rotatably installed on the top of the screw rod 22, and the connecting strip 23 is provided with a downward end. The connecting strip 23 and the fixing strip 21 are connected by the bending part. An adjusting block 24 is fixedly connected to the screw rod 22.

[0029] Connect the connecting strip 23 to the fixing strip 21, and install the second lead screw 22 in the threaded hole of the movable column 3. By adjusting the second lead screw 22 through the second adjusting block 24, the connecting strip 23 is moved downward, thereby realizing the installation and fixation of the housing 8. When installing DC screen body 1 of different sizes, it is necessary to replace the housing 8 of different sizes.

[0030] In practical use, select a housing 8 of appropriate size according to the size of the DC power supply body 1, and adjust the distance between the limiting plate 4 and the movable column 3. Place the DC power supply body 1 on the base 2, and rotate the handwheel to adjust the distance between the two movable columns 3 to achieve the installation and fixation of the DC power supply body 1. Place the housing 8 on top of the DC power supply body 1, and install a sealing ring at the air inlet of the DC power supply body 1 to improve the sealing between the housing 8 and the DC power supply body 1. The connecting strip 23 and the second lead screw 22 are respectively connected to the fixing strip 21 and the movable column 3. Rotating the second adjusting block 24 can achieve the installation and fixation of the housing 8. One of the openings at both ends of the housing 8 is always in an air intake state. When the wind speed in the fixing ring 10 is lower than the set value, it indicates that the dust filter 9 needs to be cleaned and replaced. At this time, the warning light 15 on the corresponding side will light up to remind the staff to clean and replace it in time. At the same time, the opening and closing state of the two openings can be adjusted by the extension and retraction of the two electric push rods 13, thereby avoiding affecting the normal heat dissipation of the DC power supply body 1.

[0031] The parts not disclosed in this utility model are all existing technologies, such as the connection between the PLC controller and the wind speed sensor 11, the electric actuator 13 and the warning light 15, and the programming control of the PLC controller, etc. Their specific structures and working principles will not be described in detail.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A protective structure for a DC power supply screen, comprising a DC power supply screen body (1), wherein a base (2) is provided below the DC power supply screen body (1), and a dustproof component is provided on the top, characterized in that: The base (2) has a cavity inside and a positioning component for positioning the DC screen body (1) is installed on the top. The positioning component includes movable columns (3) movably set on both sides of the DC screen body (1) and limiting plates (4) set at the four corners of the DC screen body (1). Threaded cylinders (5) are symmetrically fixed on both sides of the movable columns (3). The limiting plates (4) have an L-shaped structure, and a screw rod (6) that is threadedly connected to the threaded cylinder (5) is rotatably installed on the outside of the limiting plates (4) through a fixing block. An adjusting block (7) is fixedly connected to one end of the screw rod (6). A translation component for driving the movable columns (3) to move is installed inside the base (2). The dustproof assembly includes a U-shaped housing (8), with openings at both ends facing downwards. A dustproof mesh (9) is detachably installed inside the openings via screws. A ventilation hole adapted to the air inlet of the DC screen body (1) is opened on the bottom inner surface of the housing (8). A fixing ring (10) is provided on the outer side of the ventilation hole. A wind speed sensor (11) is installed inside the fixing ring (10). Electric push rods (13) are installed on both sides of the fixing ring (10) inside the housing (8) via mounting plates (12). A baffle (14) adapted to the inner wall size of the housing (8) is installed at the output end of the electric push rod (13). Warning lights (15) are installed at both ends of the housing (8).

2. The protective structure of a DC power supply according to claim 1, characterized in that: The movable column (3) is fixedly connected to the two sides of the threaded cylinder (5) with limiting cylinders (16), and the limiting plate (4) is fixedly installed with a limiting rod (17) inserted inside the limiting cylinder (16) by a fixing block.

3. The protective structure of a DC power supply according to claim 1, characterized in that: The base (2) has two sliding grooves on its top surface. The translation component includes a bidirectional screw (18) rotatably installed inside the base. Both sides of the bidirectional screw (18) are threaded with drive blocks (19). One end of the bidirectional screw (18) passes through the side wall of the base (2) and is fitted with a handwheel. The top of the drive block (19) passes through the sliding groove and is fixedly connected to the movable column (3).

4. The protective structure of a DC power supply according to claim 1, characterized in that: A rubber pad (20) is provided between the DC screen body (1) and the base (2).

5. The protective structure of a DC power supply according to claim 1, characterized in that: The bottom of both ends of the housing (8) is fixed with an L-shaped fixing strip (21) near the DC screen body (1), and the end of the fixing strip (21) is provided with an upward bending part. The movable column (3) has a threaded hole in the middle, and a screw rod (22) is installed in the threaded hole. A Z-shaped connecting strip (23) is rotatably installed on the top of the screw rod (22), and the connecting strip (23) is provided with a downward end. The connecting strip (23) and the fixing strip (21) are connected by the bending part. An adjusting block (24) is fixed on the screw rod (22).

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