High strength electrical cabinet hinge
By introducing structures such as oil reservoirs and filling boxes into the hinges of electrical cabinets, the problem of poor lubrication effect is solved, enabling automatic supply and convenient filling of lubricating oil, and improving the performance of electrical cabinet hinges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN WANCHANGWEI PRECISION MASCH MFG CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-16
Smart Images

Figure CN224363798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical cabinet hinge technology, specifically a high-strength electrical cabinet hinge. Background Technology
[0002] As the core component connecting the cabinet door and the cabinet body, the appliance cabinet hinge achieves the physical connection between the cabinet door and the cabinet body through a metal leaf and pin structure, supports the smooth opening and closing of the cabinet door, and facilitates users to operate, repair or replace parts inside the appliance cabinet. The appliance cabinet hinge is a key hardware component connecting the appliance cabinet door and the cabinet body.
[0003] Most appliance cabinet hinges, after prolonged use, suffer from insufficient lubrication, leading to continuous friction between the shaft and sleeve. This results in a harsh noise when closing and reduces the smoothness of closure. Lubricating the hinge usually requires applying lubricant to the surface, which causes the lubricant to drip and is not easy to lubricate the inside, making the lubrication of appliance cabinet hinges quite inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide a high-strength appliance cabinet hinge to solve the problem of poor lubrication effect of appliance cabinet hinges during use, as mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength electrical cabinet hinge, comprising a first mounting plate, a sleeve ring, a second mounting plate, a hinge shaft, and locking bolts. One end of the first mounting plate is provided with a sleeve ring, and the sleeve rings are symmetrically distributed at one end of the first mounting plate. A second mounting plate is provided at the end of the first mounting plate near the sleeve ring. The hinge shaft passes through the interior of both the second mounting plate and the sleeve ring. Evenly distributed locking bolts are provided at one end of both the first and second mounting plates. A filling box is provided at the top of the hinge shaft, and an oil storage groove connected to the filling box is opened inside the hinge shaft.
[0006] Preferably, the bottom end of the oil storage tank is provided with a limiting ring connected to the hinge shaft, and a limiting spring is provided inside the limiting ring.
[0007] Preferably, the end of the limiting spring away from the limiting ring is connected to an adjusting ball, and the hinge shaft has an oil inlet on the side near the adjusting ball.
[0008] Preferably, a fixing block is provided inside the second mounting plate.
[0009] Preferably, the top of the filling box is provided with a cover plate, and the end of the cover plate near the filling box is provided with symmetrically distributed inserts.
[0010] Preferably, a fixing frame is provided on one side of the filling box near one of the plugs, and a plug-in block is provided inside the fixing frame. The plug-in block is T-shaped, and a return spring is connected between one side of the plug-in block and the fixing frame. Guide rods connected to the fixing frame pass through both sides of the plug-in block near the return spring.
[0011] Preferably, the top of the plug block is provided with a triangular groove, and the top of the triangular groove is provided with a pressing plate that penetrates the fixing frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This high-strength electrical cabinet hinge stores lubricating oil inside the filling box, so that when the second mounting plate rotates, the lubricating oil stored in the oil reservoir can flow out through the oil filling port and enter the interior of the second mounting plate to achieve lubrication of the interior of the second mounting plate.
[0014] 2. This high-strength electrical cabinet hinge allows the plug block to move by pressing the pressing plate, and then the cover plate is lifted, making it convenient to add lubricating oil to the filling box during maintenance and repair. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional cross-sectional view of the second mounting plate of this utility model;
[0017] Figure 3 This is a three-dimensional cross-sectional view of the hinge shaft of this utility model;
[0018] Figure 4 This is a three-dimensional exploded view of the limiting ring of this utility model;
[0019] Figure 5 This is a three-dimensional cross-sectional view of the filling box of this utility model.
[0020] In the diagram: 1. First mounting plate; 2. Sleeve ring; 3. Second mounting plate; 4. Hinge shaft; 5. Locking bolt; 6. Filling box; 7. Oil reservoir; 8. Limiting ring; 9. Restricting spring; 10. Adjusting ball; 11. Oil inlet; 12. Fixing block; 13. Cover plate; 14. Insert rod; 15. Fixing frame; 16. Inserting block; 17. Return spring; 18. Triangular groove; 19. Pressing plate. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-5 This utility model provides a technical solution: a high-strength electrical cabinet hinge, including a first mounting plate 1, a sleeve ring 2, a second mounting plate 3, a hinge shaft 4, and locking bolts 5. The first mounting plate 1 is provided with a sleeve ring 2 at one end, and the sleeve rings 2 are symmetrically distributed at one end of the first mounting plate 1. The second mounting plate 3 is provided at the end of the first mounting plate 1 near the sleeve ring 2. The hinge shaft 4 passes through the interior of both the second mounting plate 3 and the sleeve ring 2. Locking bolts 5 are evenly distributed at one end of both the first mounting plate 1 and the second mounting plate 3. A filling box 6 is provided at the top of the hinge shaft 4, and an oil storage groove 7 connected to the filling box 6 is opened inside the hinge shaft 4.
[0023] This high-strength electrical cabinet hinge, through the setting of the oil storage tank 7, can store lubricating oil, thereby facilitating subsequent lubrication.
[0024] exist Figure 2 In the oil storage tank 7, a limiting ring 8 connected to the hinge shaft 4 is provided at the bottom end. A limiting spring 9 is provided inside the limiting ring 8. An adjusting ball 10 is connected to the end of the limiting spring 9 away from the limiting ring 8. An oil filling port 11 is provided on the side of the hinge shaft 4 near the adjusting ball 10.
[0025] This high-strength electrical cabinet hinge has an oil inlet 11 that engages with an adjusting ball 10, preventing lubricant leakage when the adjusting ball 10 is not compressed.
[0026] exist Figure 2 In the middle, the second mounting piece 3 has a fixing block 12 inside.
[0027] This high-strength appliance cabinet hinge has a fixing block 12 that can rotate synchronously with the second mounting plate 3, so that it can press the adjusting ball 10 after rotation.
[0028] When the appliance cabinet hinge is in use, stainless steel or alloy steel can be used as the raw material, which provides good rust resistance and fracture resistance, resulting in high strength. Lubricating oil can be added and stored inside the filling box 6, and the lubricating oil can flow into the oil reservoir 7 along the filling box 6. After the first mounting plate 1 and the second mounting plate 3 are installed on the appliance cabinet body and door respectively by the locking bolts 5, the second mounting plate 3 can rotate on the surface of the hinge shaft 4 when the door opens and closes. This rotation of the second mounting plate 3 rotates the internal fixing block 12, which in turn presses against the adjusting ball 10 on one side of the hinge shaft 4. The adjusting ball 10 can move under force and compress the limiting spring 9 during movement, causing the limiting spring 9 to contract. Since the adjusting ball 10 separates from the oil inlet 11 after moving, the lubricating oil stored in the oil reservoir 7 can flow out through the oil inlet 11 and enter the interior of the second mounting plate 3, thereby lubricating the interior of the second mounting plate 3. This allows the cabinet door to be lubricated when rotating the second mounting plate 3, preventing dryness and harsh noise during opening and closing. At the same time, the bottom end of the hinge shaft 4 has a docking hole that can engage with the locking block inside the sleeve ring 2, thus making the position of the hinge shaft 4 relatively fixed after insertion. As the cabinet door opens and closes, the interior of the second mounting plate 3 can be lubricated during rotation, making it more convenient to lubricate the interior of the appliance cabinet hinge.
[0029] exist Figure 5 In the middle, the top of the filling box 6 is provided with a cover plate 13, and the end of the cover plate 13 near the filling box 6 is provided with symmetrically distributed insert rods 14.
[0030] This high-strength electrical cabinet hinge has a pre-reserved slot inside the filling box 6 that matches the plug rod 14, so that the cover plate 13 will not shift after installation when the plug rod 14 is plugged in.
[0031] exist Figure 5 In the middle, a fixed frame 15 is provided on one side of the filling box 6 near a plug 14. A plug block 16 is provided inside the fixed frame 15. The plug block 16 is shaped like a "T". A reset spring 17 is connected between one side of the plug block 16 and the fixed frame 15. Guide rods connected to the fixed frame 15 are passed through both sides of the plug block 16 near the reset spring 17.
[0032] This high-strength appliance cabinet hinge, through the setting of guide rods, enables the plug block 16 to be relatively stable when moving, avoiding displacement.
[0033] exist Figure 5In the middle, the top of the plug block 16 is provided with a triangular groove 18, and the top of the triangular groove 18 is provided with a pressing plate 19 that penetrates the fixing frame 15.
[0034] This high-strength appliance cabinet hinge has a sliding block connecting the pressing plate 19 and the fixed frame 15, which prevents the pressing plate 19 from being lost after resetting and ensures that it can be pressed more accurately, avoiding misalignment during pressing.
[0035] Because lubricating oil is consumed due to wear and tear, adding lubricating oil can be inconvenient. This can be addressed by pressing down on the pressing plate 19, which, when moved, pushes the insertion block 16 inside the fixed frame 15. Since the insertion block 16 has a triangular groove 18 inside, the pressing plate 19 pushes the insertion block 16 after being pressed down, and during this pushing process, it compresses the return spring 17. After the insertion block 16 moves, the cover plate 13 can be lifted upwards, allowing it to move the insertion rod 14 connected to its bottom end. This allows the cover plate 13 to be quickly removed from the top of the filling box 6, facilitating lubricating oil addition during maintenance and repair. After adding lubricating oil, the filling box can be... Pressing the cover plate 13 directly causes the bottom-connected rod 14 to press against the plug block 16. Since one end of the plug block 16 is inclined, it will move directly after being pressed and press against the return spring 17. After the cover plate 13 is fully installed, the plug block 16 can align with the mating groove inside the rod 14. The return spring 17 will then return to its original position after being unrestrained, allowing the plug block 16 to lock the rod 14, thus preventing the cover plate 13 from loosening. After returning to its original position, the plug block 16 will lift the top pressing plate 19, making it easier to disassemble and add lubricating oil later. This makes it easier to add lubricating oil to the appliance cabinet hinge.
[0036] In summary, the appliance cabinet hinge, as the core component connecting the cabinet door and the cabinet body, achieves a physical connection between the cabinet door and the cabinet body through a metal leaf and pin structure, supporting smooth opening and closing of the cabinet door. Lubricating oil can be added and stored inside the filling box 6, and the lubricating oil can flow into the oil storage tank 7 along the filling box 6. After the first mounting plate 1 and the second mounting plate 3 are installed on the appliance cabinet body and the cabinet door respectively by locking bolts 5, the lubricating oil stored in the oil storage tank 7 can flow out through the oil inlet 11 when the cabinet door opens and closes, thus entering the interior of the second mounting plate 3, thereby lubricating the interior of the second mounting plate 3 and preventing dryness and harsh noise during opening and closing. Content not described in detail in this specification belongs to prior art known to those skilled in the art.
[0037] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A high-strength appliance cabinet hinge, comprising a first mounting plate (1), a sleeve ring (2), a second mounting plate (3), a hinge shaft (4), and a locking bolt (5), characterized in that: One end of the first mounting plate (1) is provided with a sleeve ring (2), and the sleeve ring (2) is symmetrically distributed at one end of the first mounting plate (1). The end of the first mounting plate (1) near the sleeve ring (2) is provided with a second mounting plate (3). The interior of the second mounting plate (3) and the sleeve ring (2) is provided with a hinge shaft (4). One end of the first mounting plate (1) and the second mounting plate (3) is provided with evenly distributed locking bolts (5). The top end of the hinge shaft (4) is provided with a filling box (6). The interior of the hinge shaft (4) is provided with an oil storage groove (7) connected to the filling box (6).
2. The high-strength appliance cabinet hinge according to claim 1, characterized in that: The bottom end of the oil storage tank (7) is provided with a limiting ring (8) connected to the hinge shaft (4), and a limiting spring (9) is provided inside the limiting ring (8).
3. A high-strength appliance cabinet hinge according to claim 2, characterized in that: The end of the limiting spring (9) away from the limiting ring (8) is connected to the adjusting ball (10), and the hinge shaft (4) has an oil inlet (11) on the side near the adjusting ball (10).
4. A high-strength appliance cabinet hinge according to claim 1, characterized in that: The second mounting plate (3) has a fixing block (12) inside.
5. A high-strength appliance cabinet hinge according to claim 1, characterized in that: The top of the filling box (6) is provided with a cover plate (13), and the end of the cover plate (13) near the filling box (6) is provided with symmetrically distributed inserts (14).
6. A high-strength appliance cabinet hinge according to claim 5, characterized in that: The filling box (6) has a fixing frame (15) on one side near one of the plugs (14). The fixing frame (15) has a plug block (16) inside. The plug block (16) is shaped like a "T". A return spring (17) is connected between one side of the plug block (16) and the fixing frame (15). Guide rods connected to the fixing frame (15) pass through both sides of the plug block (16) near the return spring (17).
7. A high-strength appliance cabinet hinge according to claim 6, characterized in that: The top of the plug block (16) is provided with a triangular groove (18), and the top of the triangular groove (18) is provided with a pressing plate (19) that penetrates the fixing frame (15).