Hinge for power distribution control equipment

Abstract

The utility model discloses a hinge for power distribution control equipment, which comprises a seat body and a hinge seat fixed on the seat body, the seat body is provided with an oil storage cavity, the two sides of the oil storage cavity are provided with oil outlet channels, the two sides of the hinge seat are provided with hinge parts, the hinge parts are provided with oil outlet holes and are communicated with the oil outlet channels, and the oil outlet holes are communicated with the hinge seat. An oil outlet hole is formed in the hinge seat, an oil outlet assembly is arranged in the oil outlet hole, a piston assembly is arranged in the oil storage cavity and penetrates through the hinge seat, a rotatable hinge block is arranged between the hinge parts, and second abutting parts used for triggering the oil outlet assembly are arranged on the two sides of the hinge block. The cabinet door is opened and closed to drive the first abutting portion to drive the piston assembly, and lubricating oil in the oil storage cavity is pumped to the oil outlet. Meanwhile, the second abutting part promotes the oil outlet assembly to sink to form a release channel, so that the lubricating oil accurately acts on the key friction surface of the hinge block and the hinge part; the design realizes automatic lubrication during opening and closing each time, obviously reduces frictional wear, prolongs the service life of the hinge, and effectively protects metal parts.

Description

Technical Field

[0001] This utility model relates to the field of power distribution control equipment technology, and in particular to a hinge for power distribution control equipment. Background Technology

[0002] As an indispensable and crucial component of the power system, power distribution control equipment undertakes the core functions of receiving, distributing, controlling, and protecting electrical energy, and its performance directly affects the stable operation of electrical equipment and transmission lines. Among them, power distribution switch control equipment, especially complete switchgear, as the terminal directly facing users, integrates a variety of electrical components to meet the diversified needs of circuit control, protection, distribution, and monitoring.

[0003] In existing technologies, cabinet doors of power distribution control equipment are typically connected to the cabinet body via hinges to ensure stable installation and flexible opening and closing, guaranteeing ease of equipment maintenance and operation. However, in the actual operating environment of power distribution control equipment, especially under high humidity or other harsh conditions, existing hinge structures generally face maintenance challenges. Hinges require regular lubrication to maintain smooth operation; otherwise, they are prone to wear, jamming, or even damage due to increased friction, significantly increasing the maintenance burden and cost. More importantly, existing technologies often lack a systematic monitoring and maintenance mechanism for hinge conditions, resulting in problems such as hinge corrosion, loosening, and deformation not being addressed in a timely manner. This can lead to safety hazards such as difficulty in opening and closing cabinet doors, sealing failure, and reduced structural strength, affecting the normal operation and reliability of the equipment.

[0004] Therefore, how to provide a technical solution that can effectively overcome the inconvenience of maintenance, susceptibility to corrosion and damage, and impact on equipment reliability of existing hinges has become an urgent technical problem to be solved in this field. This application, based on in-depth research and innovative design, aims to propose an improved technical solution in this context. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology design and to provide a product that is easy to maintain, has a longer service life, and is stable and reliable.

[0006] A hinge for a power distribution control device includes a base and a hinge seat fixed thereon. The base has an oil storage cavity with oil outlet channels on both sides. The hinge seat has hinge portions on both sides, each hinge portion having an oil outlet hole communicating with the oil outlet channel. An oil outlet assembly is provided in the oil outlet hole. A piston assembly is provided in the oil storage cavity and passes through the hinge seat. A rotatable hinge block is provided between the hinge portions. The hinge block has second abutment portions on both sides for triggering the oil outlet assembly, and a first abutment portion for pushing the piston assembly downward.

[0007] Preferably, the oil outlet channel is provided with a settling groove, the settling groove is provided with a support plate, and the support plate is provided with an oil hole for lubricating oil to pass through.

[0008] Preferably, the hinge seat is provided with a guide hole for the lifting and lowering of the piston assembly, and a first protruding ring is provided on the back side of the guide hole and embedded in the oil storage cavity.

[0009] Preferably, the oil outlet is provided with a second convex ring and is embedded in the sink groove. The second convex ring also presses the support plate tightly against the bottom of the sink groove. The outlet of the oil outlet is provided with a tightening part. O-rings are provided between the first convex ring and the oil storage cavity and between the second convex ring and the sink groove.

[0010] Preferably, the piston assembly includes a piston rod slidably disposed in the oil reservoir and a first spring, the two ends of the first spring respectively abutting the piston rod and the bottom of the oil reservoir, the piston rod having a trigger part and passing through a guide hole, and an O-ring seal being provided between the piston rod and the oil reservoir, and between the trigger part and the guide hole.

[0011] Preferably, the oil outlet assembly includes a ball bearing and a second spring, with the two ends of the second spring abutting against the support plate and the ball bearing respectively, so that the ball bearing tightly abuts against the tightening part.

[0012] Preferably, the hinge portion is provided with a hinge hole, the hinge block is also provided with a cam, the cam is provided with a first clearance groove on both sides to prevent triggering the piston assembly, the first abutment portion is provided on the cam, the hinge block is provided with cylinders on both sides and pivotally disposed in the hinge hole, the cylinders are provided with a second clearance groove to prevent triggering the oil outlet assembly, and the second abutment portion is disposed between the two second clearance grooves.

[0013] Preferably, an oil injection pipe is provided on one side of the oil storage cavity, opposite to the direction of rotation of the hinge block. A removable oil cap is provided at the inlet of the oil injection pipe. The oil injection pipe is transparent and has a numerical marking section. Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, as the cabinet door opens and closes normally, the first contact part gradually moves to a designated position and drives the piston assembly to descend, pumping the lubricating oil in the oil storage chamber to the oil outlet. Simultaneously, the second contact part causes the oil outlet assembly to sink, forming a lubricating oil release channel. This ensures that the lubricant directly acts on the key friction contact surfaces between the hinge block and the hinge joint. This design makes each opening and closing of the cabinet door an instant lubrication process, which not only significantly reduces friction and wear and extends the service life of the hinge, but also effectively protects metal parts from corrosion in humid environments. In addition, the external oil injection channel and numerical indicator allow maintenance personnel to intuitively monitor the lubrication status and replenish the oil in a timely manner, greatly simplifying the maintenance process. Overall, this technical solution has the core advantages of automatic lubrication, durability, comprehensive protection, and ease of maintenance, significantly improving the reliability, stability, and production efficiency of the product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a hinge for a power distribution control device according to the present invention;

[0017] Figure 2 This is a side cross-sectional view of a hinge for a power distribution control device according to the present invention.

[0018] Figure 3 This utility model Figure 2 A partial enlarged view of point A of a hinge used in a power distribution control device;

[0019] Figure 4 This is an exploded structural diagram of a hinge for a power distribution control device according to the present invention.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] Reference numerals: 1. Seat; 2. Hinge seat; 3. Oil outlet assembly; 4. Piston assembly; 5. Hinge block; 6. Support plate; 7. O-ring seal; 8. Oil injection pipe; 11. Oil reservoir; 12. Oil outlet channel; 121. Sump; 21. Hinge part; 22. Oil outlet hole; 23. Guide hole; 24. Hinge hole; 221. Second convex ring; 222. Tightening part; 231. First convex ring; 31. Ball bearing; 32. Second spring; 41. Plug rod; 42. First spring; 411. Trigger part; 51. Cam; 52. Cylinder; 511. First abutment part; 512. First clearance groove; 521. Second abutment part; 522. Second clearance groove; 61. Oil hole; 81. Oil cap; 82. Numerical marking part. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Reference example Figures 1 to 4 A hinge for a power distribution control device includes a base 1 and a hinge seat 2 fixed thereon. The base 1 has an oil storage chamber 11 with oil outlet channels 12 on both sides. The hinge seat 2 has hinge portions 21 on both sides, each with an oil outlet hole 22 communicating with the oil outlet channel 12. An oil outlet assembly 3 is located within the oil outlet hole 22. A piston assembly 4 is located within the oil storage chamber 11 and passes through the hinge seat 2. A rotatable hinge block 5 is located between the hinge portions 21. The hinge block 5 has second contact portions 521 on both sides for triggering the oil outlet assembly 3, and a first contact portion 511 for pushing the piston assembly 4 downwards.

[0026] It is worth mentioning that the oil outlet channel 12 is provided with a sink 121, the sink 121 is provided with a support plate 6, the support plate 6 is provided with an oil hole 61 for lubricating oil to pass through, the sink 121 and the second convex ring 221 form a labyrinth-type sealing structure to prevent lubricating oil leakage, and the support plate 6 provides support for the second spring 32.

[0027] It is worth mentioning that the hinge seat 2 is provided with a guide hole 23 for the piston assembly 4 to rise and fall. The back of the guide hole 23 is provided with a first protruding ring 231, which is embedded in the oil storage chamber 11. The first protruding ring and the oil storage chamber 11 form a sealed structure to prevent lubricating oil leakage.

[0028] It is worth mentioning that the oil outlet 22 is provided with a second convex ring 221, which is embedded in the sink 121. The second convex ring 221 also presses the support plate 6 tightly against the bottom of the sink 121. The outlet of the oil outlet 22 is provided with a tightening part 222. O-rings 7 are provided between the first convex ring 231 and the oil storage cavity 11, and between the second convex ring 221 and the sink 121. The tightening part 222 is adapted to the shape of the ball 31, which effectively prevents lubricating oil leakage before triggering. In addition, the O-ring 7 further enhances the sealing performance. Combined with the labyrinth seal structure, the double protection ensures that the lubricating oil will not leak before the predetermined time.

[0029] It is worth mentioning that the piston assembly 4 includes a piston rod 41 slidably disposed in the oil reservoir 11 and a first spring 42. The two ends of the first spring 42 abut against the bottom of the piston rod 41 and the oil reservoir 11, respectively. The piston rod 41 is provided with a trigger part 411 and passes through the guide hole 23. O-rings 7 are provided between the piston rod 41 and the oil reservoir 11 and between the trigger part 411 and the guide hole 23. The first spring 42 is not only responsible for resetting the piston rod 41 after it sinks down, ensuring that the piston rod 41 maintains its initial position in the non-working state, but also plays a buffering role when there is sufficient oil in the oil reservoir 11, the oil injection channel and the oil outlet channel 12, preventing the lubricating oil from leaking or the related mating parts from being damaged due to excessive internal pressure.

[0030] It is worth mentioning that the oil outlet assembly 3 includes a ball 31 and a second spring 32. The two ends of the second spring 32 abut against the support plate 6 and the ball 31 respectively, so that the ball 31 tightly abuts against the tightening part 222. The second spring 32 resets the ball 31 after it sinks down, and also makes the ball 31 tightly abut against the tightening part 222, ensuring that the lubricating oil leaks out when the ball 31 is not working.

[0031] It is worth mentioning that the hinge part 21 is provided with a hinge hole 24, and the hinge block 5 is also provided with a cam 51. The cam 51 has a first clearance groove 512 on both sides to prevent the triggering piston assembly 4. The first abutment part 511 is provided on the cam 51. The hinge block 5 has a cylinder 52 on both sides and is pivotally provided in the hinge hole 24. The cylinder 52 has a second clearance groove 522 on both sides to prevent the triggering oil outlet assembly 3. The second abutment part 521 is provided between the two second clearance grooves 522. The first clearance groove 512 is away from the hinge seat 2 and abuts against the triggering part 411. The second clearance groove 522 is away from the oil outlet hole 22 and also abuts against the ball 31.

[0032] It is worth mentioning that an oil injection pipe 8 is provided on one side of the oil storage chamber 11, and is opposite to the direction of rotation of the hinge block 5. A detachable oil cap 81 is provided at the inlet of the oil injection pipe 8. The oil injection pipe 8 is transparent and has a numerical marking section 82.

[0033] The working principle of this utility model is described as follows:

[0034] As the cabinet door opens and closes normally, the first contact part 511 gradually moves to the designated position and pushes the trigger part 411 down. As the stopper rod 41 descends, it squeezes the lubricating oil in the oil storage chamber 11 and the oil outlet channel 12, and pumps the lubricating oil in it to the oil outlet hole 22.

[0035] Simultaneously, the second contact part 521 pushes the ball 31 downward, forming a lubricating oil release channel between the ball 31 and the tightening part 222. This ensures that the lubricant acts directly on the key friction contact surfaces between the hinge block 5 and the hinge part 21. This design makes each opening and closing of the cabinet door an instant lubrication process, which not only significantly reduces friction and wear and extends the service life of the hinge, but also effectively protects metal parts from corrosion by humid environments. In addition, the external oil filling channel and numerical marking part 82 make it easy for maintenance personnel to intuitively monitor the lubrication status and replenish the oil in a timely manner, greatly simplifying the maintenance process. Overall, this technical solution has the core advantages of automatic lubrication, durability, comprehensive protection, and ease of maintenance, significantly improving the reliability, stability, and production efficiency of the product.

[0036] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A hinge for power distribution control equipment, comprising a base (1) and a hinge seat (2) fixed thereon, characterized in that: The seat (1) is provided with an oil storage chamber (11), and oil outlet channels (12) are provided on both sides of the oil storage chamber (11). The hinge seat (2) is provided with hinge parts (21) on both sides. The hinge parts (21) are provided with oil outlet holes (22) and communicate with the oil outlet channels (12). An oil outlet assembly (3) is provided in the oil outlet holes (22). A piston assembly (4) is provided in the oil storage chamber (11) and passes through the hinge seat (2). A rotatable hinge block (5) is provided between the hinge parts (21). A second abutment part (521) for triggering the oil outlet assembly (3) is provided on both sides of the hinge block (5). A first abutment part (511) for pushing the piston assembly (4) down is provided on the hinge block (5).

2. The hinge for power distribution control equipment according to claim 1, characterized in that: The oil outlet channel (12) is provided with a sink (121), the sink (121) is provided with a support plate (6), and the support plate (6) is provided with an oil hole (61) for lubricating oil to pass through.

3. The hinge for power distribution control equipment according to claim 2, characterized in that: The hinge seat (2) is provided with a guide hole (23) for the piston assembly (4) to move up and down. The back of the guide hole (23) is provided with a first protruding ring (231) and is embedded in the oil storage chamber (11).

4. The hinge for power distribution control equipment according to claim 3, characterized in that: The oil outlet (22) is provided with a second convex ring (221) and is embedded in the sink (121). The second convex ring (221) also presses the support piece (6) against the bottom of the sink (121). The outlet of the oil outlet (22) is provided with a tightening part (222). An O-ring (7) is provided between the first convex ring (231) and the oil storage cavity (11) and between the second convex ring (221) and the sink (121).

5. The hinge for power distribution control equipment according to claim 3, characterized in that: The piston assembly (4) includes a piston rod (41) slidably disposed in the oil reservoir (11) and a first spring (42). The two ends of the first spring (42) respectively abut against the piston rod (41) and the bottom of the oil reservoir (11). The piston rod (41) is provided with a trigger part (411) and passes through a guide hole (23). An O-ring (7) is provided between the piston rod (41) and the oil reservoir (11) and between the trigger part (411) and the guide hole (23).

6. The hinge for power distribution control equipment according to claim 4, characterized in that: The oil outlet assembly (3) includes a ball (31) and a second spring (32). The two ends of the second spring (32) abut against the support plate (6) and the ball (31) respectively, so that the ball (31) abuts tightly against the tightening part (222).

7. The hinge for power distribution control equipment according to claim 1, characterized in that: The hinge part (21) is provided with a hinge hole (24), and the hinge block (5) is also provided with a cam (51). The cam (51) is provided with a first clearance groove (512) on both sides to prevent the triggering piston assembly (4). The first abutment part (511) is provided on the cam (51). The hinge block (5) is provided with a cylinder (52) on both sides and pivotally provided in the hinge hole (24). The cylinder (52) is provided with a second clearance groove (522) on both sides to prevent the triggering oil outlet assembly (3). The second abutment part (521) is provided between the two second clearance grooves (522).

8. The hinge for power distribution control equipment according to claim 1, characterized in that: An oil injection pipe (8) is provided on one side of the oil storage chamber (11) and is opposite to the direction of rotation of the hinge block (5). A detachable oil cap (81) is provided at the inlet of the oil injection pipe (8). The oil injection pipe (8) is made transparent and has a numerical marking part (82).

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