A grounding device applied to a sheet metal case

Abstract

The utility model relates to grounding device technical field discloses a grounding device applied to sheet metal machine case, including the machine case shell, the outer wall sliding connection of machine case shell has strong magnet, the inner wall threaded connection of strong magnet has screw no.

Description

Technical Field

[0001] This utility model relates to the field of grounding device technology, and in particular to a grounding device applied to sheet metal chassis. Background Technology

[0002] Sheet metal chassis are chassis made from thin metal sheets using a comprehensive cold working process involving blanking, bending, stretching, forming, and welding. The process involves 3D modeling using software, selecting appropriate sheet metal materials based on design requirements, cutting using laser cutting and CNC punching, forming using bending and stamping machines, assembling via welding and screw connections, and finally surface treatment including spraying, electroplating, and anodizing. These chassis offer advantages such as high mechanical strength, good electromagnetic shielding, excellent heat dissipation, durability, high machinability, and high customizability, making them widely used in the electronics, communications, automotive, and medical device industries.

[0003] To prevent accidental operation of energized equipment, ensure personnel safety, and protect equipment insulation, sheet metal chassis must be equipped with grounding devices during use. Existing sheet metal chassis typically have pre-drilled threaded holes in the outer sheet metal shell, with a grounding wire fixed by galvanized grounding bolts. The other end of the grounding wire is connected to a grounding electrode. When leakage occurs inside the equipment, the current can be conducted to the earth through the grounding device, preventing electric shock to personnel. However, traditional bolt and terminal connections rely on mechanical pressure to achieve conductivity, which is prone to loosening due to vibration and thermal expansion and contraction during long-term use. Disassembly and installation are very troublesome, time-consuming, and inconvenient when moving the sheet metal chassis or replacing wiring devices. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a grounding device for use on sheet metal chassis, aiming to improve the time-consuming and inconvenient problems in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a grounding device applied to a sheet metal chassis, comprising a chassis shell, a powerful magnet slidably connected to the outer wall of the chassis shell, a screw threadedly connected to the inner wall of the powerful magnet, a nut threadedly connected to the middle of the outer wall of the screw, a fixing plate threadedly connected to the right end of the outer wall of the screw, a grounding pin threadedly connected to the inner wall of the other end of the fixing plate, a nut threadedly connected to the middle of the outer wall of the grounding pin, a grounding plate threadedly connected to the right end of the outer wall of the grounding pin, washers provided at both ends of the grounding plate, a nut threadedly connected to the outer wall of the grounding pin near the edge, a screw threadedly connected to the inner wall of the grounding plate, an electric wire fixedly connected to the inner wall of the grounding plate, and a protective device fixedly connected to the outer wall of the chassis shell, the protective device being used to protect the grounding device.

[0006] As a further description of the above technical solution:

[0007] The protective device includes a protective shell, the left end of which is fixedly connected to the outer wall of the chassis shell. A sliding hole is provided on the right side of the outer wall of the protective shell. A pull plate is slidably connected to the inner wall of the sliding hole. A pull ring is fixedly connected to the front side of the pull plate. Multiple limiting brackets are fixedly connected to the front side of the protective shell. Multiple limiting holes are provided on the inner wall of the limiting brackets. Multiple inner shafts are fixedly connected to the front side of the protective shell. A rotating column is rotatably connected to the outer wall of the inner shaft. A limiting plate is fixedly connected to the outer wall of the rotating column. A fixing ball is fixedly connected to the inner wall of the limiting plate. A limiting ring is fixedly connected to the front end of the outer wall of the inner shaft.

[0008] As a further description of the above technical solution:

[0009] A connecting tube is fixedly connected to the lower end of the outer wall of the wire, and a sliding column is fixedly connected to the lower end of the inner wall of the connecting tube.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the sliding column is slidably connected to a grounding plate, the inner wall of the grounding plate is provided with a sliding groove, and the bottom of the grounding plate is fixedly connected to multiple grounding nails.

[0012] As a further description of the above technical solution:

[0013] A push rod is fixedly connected to the outer wall of the chassis near the edge, and a hinge is threadedly connected to the front side of the chassis.

[0014] As a further description of the above technical solution:

[0015] The other side of the hinge is threaded to a door panel, and a handle is fixedly connected to the front side of the door panel.

[0016] As a further description of the above technical solution:

[0017] The bottom of the chassis shell is fixedly connected to multiple chassis feet, and a switch is fixedly connected to the upper middle part of the outer wall of the chassis shell.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the chassis shell has multiple ventilation holes, and the outer wall of the electric screw is threadedly connected to the inner wall of the chassis shell.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the sheet metal chassis is working normally, first insert both ends of the wire into the screw two and the connecting tube respectively, rotate the screw two to press inward to fix the wire, then screw the nut two and the washer into the outer wall of the connector and the right end of the fixing plate respectively, then install the connector in the middle of the two washers, and finally screw in the nut three to fix it. After that, the strong magnet is attracted to the outer wall of the chassis shell, and the connector is screwed into the reserved inner wall hole of the chassis shell. The installation and disassembly wiring can be completed quickly, saving time and convenience.

[0022] 2. In this utility model, after the wiring device is installed, it is placed in the protective shell and fixed to the outer shell of the chassis. First, pull the limiting plate so that it rotates around the inner axis with the rotating column from horizontal to vertical. Press the limiting plate to coincide with the limiting frame so that the fixed ball enters the limiting hole to complete the engagement. Then, pull the pull ring to pull the pull plate out of the sliding hole. After the wiring device is placed in, push the pull ring to make the pull plate fully engage with the sliding hole. Finally, rotate the limiting plate to horizontal to engage the front side of the pull plate, thus completing the closing and locking of the protective device to better protect the wiring device. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a grounding device applied to a sheet metal chassis according to the present invention;

[0024] Figure 2 This is a side view of a grounding device applied to a sheet metal chassis according to the present invention;

[0025] Figure 3 This is a partial structural diagram of a powerful magnet used in a grounding device applied to a sheet metal chassis, as proposed in this utility model.

[0026] Figure 4 This is a partial structural exploded view of the grounding device for use on a sheet metal chassis, as proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the grounding plate of a grounding device applied to a sheet metal chassis according to the present invention;

[0028] Figure 6 This is a partial structural diagram of the protective shell of a grounding device applied to a sheet metal chassis according to the present invention;

[0029] Figure 7 This is a partial structural disassembly diagram of the limiting plate of a grounding device applied to a sheet metal chassis, as proposed in this utility model.

[0030] Legend:

[0031] 1. Chassis outer shell; 2. Protective device; 201. Protective shell; 202. Sliding hole; 203. Pull-out plate; 204. Pull ring; 205. Limiting bracket; 206. Limiting hole; 207. Inner shaft; 208. Rotating column; 209. Limiting plate; 210. Fixed ball; 211. Limiting ring; 3. Strong magnet; 4. Screw 1; 5. Fixing plate; 6. Nut 1; 7. Electrical connector; 8. Nut 2; 9. Washer; 10. Electrical connector; 11. Nut 3; 12. Screw 2; 13. Wire; 14. Connecting conduit; 15. Sliding column; 16. Grounding plate; 17. Slide groove; 18. Grounding nail; 19. Push rod; 20. Hinge; 21. Cabinet door panel; 22. Handle; 23. Cabinet feet; 24. Switch; 25. Vent. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 This utility model provides an embodiment of a grounding device applied to a sheet metal chassis, including a chassis shell 1, a powerful magnet 3 slidably connected to the outer wall of the chassis shell 1, a screw 4 threadedly connected to the inner wall of the powerful magnet 3, a nut 6 threadedly connected to the middle of the outer wall of the screw 4, a fixing plate 5 threadedly connected to the right end of the outer wall of the screw 4, a grounding pin 7 threadedly connected to the inner wall of the other end of the fixing plate 5, a nut 8 threadedly connected to the middle of the outer wall of the grounding pin 7, a grounding plate 10 threadedly connected to the right end of the outer wall of the grounding pin 7, washers 9 provided at both ends of the grounding plate 10, a nut 11 threadedly connected to the outer wall of the grounding pin 7 near the edge, a screw 12 threadedly connected to the inner wall of the grounding plate 10, an electric wire 13 fixedly connected to the inner wall of the grounding plate 10, and a protection device 2 fixedly connected to the outer wall of the chassis shell 1, the protection device 2 being used to protect the grounding device;

[0034] Specifically, the chassis shell 1 serves as the installation base for the entire grounding device. A powerful magnet 3 is slidably connected to the outer wall of the chassis shell 1, allowing for position adjustment. Its inner wall is threadedly connected to screw 4, which serves as both a connector and a fixing element. A nut 6 is threadedly connected to the middle of the outer wall of screw 4, fixing the relative position of screw 4 and the powerful magnet 3. The right end of the outer wall of screw 4 is threadedly connected to a fixing plate 5, thus connecting the fixing plate 5 to the powerful magnet 3. The other end of the inner wall of the fixing plate 5 is threadedly connected to a grounding pin 7, a key component for current conduction. The middle of its outer wall... The nut 8 on the right end of the grounding piece 10 and the washer 9 on the left and right ends of the grounding piece 10, along with the nut 11 near the edge, work together to fix the position of the grounding piece 10, ensuring a stable connection between the grounding piece 10 and the grounding pin 7 and good conductivity. The inner wall of the grounding piece 10 is threadedly connected to the screw 12. The screw 12 is used to fix the wire 13 that passes through the inner wall of the grounding piece 10, ensuring that the wire 13 is tightly connected to the grounding piece 10 and realizing current conduction. The protective device 2, which is fixedly connected to the outer wall of the chassis 1, serves to protect the entire grounding device and prevent it from being damaged by external factors.

[0035] Please see the appendix Figure 2 Appendix Figure 6 and attached Figure 7 The protective device 2 includes a protective shell 201. The left end of the protective shell 201 is fixedly connected to the outer wall of the outer casing 1. A sliding hole 202 is provided on the right side of the outer wall of the protective shell 201. A pull plate 203 is slidably connected to the inner wall of the sliding hole 202. A pull ring 204 is fixedly connected to the front side of the pull plate 203. A plurality of limit frames 205 are fixedly connected to the front side of the protective shell 201. A plurality of limit holes 206 are provided on the inner wall of the limit frame 205. A plurality of inner shafts 207 are fixedly connected to the front side of the protective shell 201. A rotating column 208 is rotatably connected to the outer wall of the inner shaft 207. A limit plate 209 is fixedly connected to the outer wall of the rotating column 208. A fixed ball 210 is fixedly connected to the inner wall of the limit plate 209. A limit ring 211 is fixedly connected to the front end of the outer wall of the inner shaft 207.

[0036] Specifically, in the protection device 2, the left end of the protective shell 201 is fixed to the outer wall of the chassis shell 1, serving as the basic frame of the protection device 2. The sliding hole 202 on the right side of the outer wall of the protective shell 201 is slidably connected to the pull plate 203. The pull ring 204 on the front side of the pull plate 203 facilitates pulling the pull plate 203, realizing the opening and closing of the internal space of the protective shell 201, which is convenient for inserting and removing the wiring device. The multiple limiting brackets 205 fixed on the front side of the protective shell 201 have limiting holes 206 on their inner walls that cooperate with the fixing balls 210 on the inner wall of the limiting plate 209, which can realize the locking and fixing of the limiting plate 209. The inner shaft 207 on the front side of the protective shell 201 is rotatably connected to the rotating column 208. The limiting plate 209 on the outer wall of the rotating column 208 can rotate around the inner shaft 207. The limiting ring 211 at the front end of the outer wall of the inner shaft 207 restricts the axial displacement of the rotating column 208. When the limiting plate 209 rotates to the appropriate position, the fixing ball 210 is inserted into the limiting hole 206 to fix the state of the limiting plate 209. When the limiting plate 209 rotates to the horizontal position, it can engage the front side of the pull-out plate 203 to lock the pull-out plate 203, thereby completing the closing and locking of the protective device 2 and playing the role of protecting the internal wiring device.

[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 A connecting pipe 14 is fixedly connected to the lower end of the outer wall of the wire 13. A sliding column 15 is fixedly connected to the lower end of the inner wall of the connecting pipe 14. A grounding plate 16 is slidably connected to the outer wall of the sliding column 15. A groove 17 is opened on the inner wall of the grounding plate 16. Multiple grounding nails 18 are fixedly connected to the bottom of the grounding plate 16. A push rod 19 is fixedly connected to the outer wall of the chassis shell 1 near the edge. A hinge 20 is threadedly connected to the front side of the chassis shell 1.

[0038] Specifically, the lower end of the outer wall of the wire 13 is fixedly connected to the connecting pipe 14. The sliding column 15 fixed at the lower end of the inner wall of the connecting pipe 14 is slidably connected to the grounding plate 16. The sliding groove 17 on the inner wall of the grounding plate 16 provides a path for the sliding column 15 to slide, so that the grounding plate 16 can move relative to the connecting pipe 14. The multiple grounding nails 18 fixed at the bottom of the grounding plate 16 are key components for grounding and can be inserted into the ground to complete grounding. The push rod 19 fixed near the edge of the outer wall of the chassis 1 is convenient for pushing the chassis 1 to move and adjust its position. The hinge 20 threaded on the front side of the chassis 1 can realize the rotation and opening of the relevant components of the chassis 1, which is convenient for operating the internal structure.

[0039] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3The other side of the hinge 20 is threadedly connected to the door panel 21. The front side of the door panel 21 is fixedly connected to the handle 22. The bottom of the chassis shell 1 is fixedly connected to multiple chassis feet 23. The upper part of the outer wall of the chassis shell 1 is fixedly connected to the switch 24. The outer wall of the chassis shell 1 is provided with multiple ventilation holes 25. The outer wall of the electric screw 7 is threadedly connected to the inner wall of the chassis shell 1.

[0040] Specifically, the other side of the hinge 20 is threaded to the door panel 21. With the help of the rotation characteristics of the hinge 20, the door panel 21 can be opened and closed. The handle 22 fixed on its front side facilitates opening and closing the door panel 21. Multiple feet 23 fixed at the bottom of the chassis shell 1 serve to support the chassis shell 1 and keep its bottom at a certain distance from the placement surface. The switch 24 fixed in the upper middle part of the outer wall of the chassis shell 1 is used to control the start and stop of the equipment. Multiple ventilation holes 25 opened on the outer wall of the chassis shell 1 can promote air circulation inside and outside the chassis and help the equipment dissipate heat. The outer wall of the electric pin 7 is threaded to the inner wall of the chassis shell 1, which further stabilizes the installation of the electric pin 7 and ensures the reliability of current conduction.

[0041] Working principle: When the sheet metal chassis is working normally, first insert the two ends of the wire 13 into the screw 12 and the connecting tube 14 respectively, then rotate the screw 12 to press inward, thereby fixing the wire 13. Then, turn the nut 8 and washer 9 into the outer wall of the connector 7 and the right end of the fixing plate 5 respectively. Next, turn the connector 10 into the middle of the two washers 9, and finally turn the nut 11 to fix the above. Then, the strong magnet 3 is attracted to the outer wall of the chassis shell 1, and the connector 7 is turned into the reserved inner wall hole of the chassis shell 1, thereby quickly and conveniently completing the installation and disassembly wiring.

[0042] After the wiring device is installed, place it in the protective shell 201 and fix it to the outer casing 1 of the chassis. First, pull the limiting plate 209 so that it rotates around the inner shaft 207 with the rotating column 208 until it rotates from the horizontal direction to the vertical direction. At this time, press the limiting plate 209 to overlap with the limiting frame 205 so that the fixing ball 210 enters the limiting hole 206 to complete the engagement. Then pull the pull ring 204 to drive the pull plate 203 to be pulled out from the sliding hole 202. Then put the wiring device in. Next, push the pull ring 204 to make the pull plate 203 fully engage with the sliding hole 202. Finally, rotate the limiting plate 209 until it is horizontal, thereby engaging the front side of the pull plate 203 and completing the closing and locking of the protection device 2, which can better protect the wiring device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grounding device for use on sheet metal chassis, comprising a chassis shell (1), characterized in that: A powerful magnet (3) is slidably connected to the outer wall of the chassis shell (1). A screw (4) is threadedly connected to the inner wall of the powerful magnet (3). A nut (6) is threadedly connected to the middle of the outer wall of the screw (4). A fixing plate (5) is threadedly connected to the right end of the outer wall of the screw (4). A power connector (7) is threadedly connected to the inner wall of the other end of the fixing plate (5). A nut (8) is threadedly connected to the middle of the outer wall of the power connector (7). A grounding plate (10) is threaded to the right end of the wall. Washers (9) are provided at both ends of the grounding plate (10). Nut three (11) is threaded to the outer wall of the grounding nail (7) near the edge. Screw two (12) is threaded to the inner wall of the grounding plate (10). Wire (13) is fixedly connected to the inner wall of the grounding plate (10). A protective device (2) is fixedly connected to the outer wall of the chassis shell (1). The protective device (2) is used to protect the grounding device.

2. The grounding device applied to a sheet metal chassis according to claim 1, characterized in that: The protective device (2) includes a protective shell (201). The left end of the protective shell (201) is fixedly connected to the outer wall of the chassis shell (1). A sliding hole (202) is provided on the right side of the outer wall of the protective shell (201). A pull plate (203) is slidably connected to the inner wall of the sliding hole (202). A pull ring (204) is fixedly connected to the front side of the pull plate (203). A plurality of limit brackets (205) are fixedly connected to the front side of the protective shell (201). The inner wall of the limiting frame (205) is provided with multiple limiting holes (206). Multiple inner shafts (207) are fixedly connected to the front side of the protective shell (201). A rotating column (208) is rotatably connected to the outer wall of the inner shaft (207). A limiting plate (209) is fixedly connected to the outer wall of the rotating column (208). A fixing ball (210) is fixedly connected to the inner wall of the limiting plate (209). A limiting ring (211) is fixedly connected to the front end of the outer wall of the inner shaft (207).

3. A grounding device for use in sheet metal chassis according to claim 1, characterized in that: The lower end of the outer wall of the wire (13) is fixedly connected to a connecting pipe (14), and the lower end of the inner wall of the connecting pipe (14) is fixedly connected to a sliding column (15).

4. A grounding device applied to a sheet metal chassis according to claim 3, characterized in that: The outer wall of the sliding column (15) is slidably connected to a grounding plate (16), the inner wall of the grounding plate (16) is provided with a sliding groove (17), and the bottom of the grounding plate (16) is fixedly connected with a plurality of grounding nails (18).

5. A grounding device applied to a sheet metal chassis according to claim 1, characterized in that: A push rod (19) is fixedly connected to the outer wall of the chassis (1) near the edge, and a hinge (20) is threadedly connected to the front side of the chassis (1).

6. A grounding device applied to a sheet metal chassis according to claim 5, characterized in that: The hinge (20) is threaded to a door panel (21) on the other side, and a handle (22) is fixedly connected to the front side of the door panel (21).

7. A grounding device applied to a sheet metal chassis according to claim 1, characterized in that: The bottom of the chassis shell (1) is fixedly connected with a plurality of chassis feet (23), and a switch (24) is fixedly connected to the upper part of the outer wall of the chassis shell (1).

8. A grounding device applied to a sheet metal chassis according to claim 1, characterized in that: The outer wall of the chassis shell (1) is provided with a plurality of ventilation holes (25), and the outer wall of the electric screw (7) is threadedly connected to the inner wall of the chassis shell (1).

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