Valve mechanism of power distribution equipment

Abstract

The utility model discloses a power distribution equipment valve mechanism which comprises two guide rods which are symmetrically arranged, an upper valve and a lower valve which are movably arranged on the two guide rods, hard chromium layers are plated on the surfaces of the guide rods, connecting grooves are formed in the two sides of the upper valve and the two sides of the lower valve, connecting sleeves are arranged in the connecting grooves, and the upper valve and the lower valve are connected through the connecting sleeves. The connecting sleeve is connected with the two guide rods in a sleeved mode, a plurality of oil storage cavities are formed in the inner wall of the connecting sleeve in the radial direction and filled with lubricating oil, a wear-resisting ring is arranged between every two adjacent oil storage cavities, and sealing rings are arranged at the positions, close to the outlets, of the two ends of the inner wall of the connecting sleeve. The connecting sleeves are arranged on the two sides of the upper valve and the two sides of the lower valve, so that the upper valve and the lower valve are prevented from making direct contact with the guide rod, the effect of reducing friction is achieved, sliding of the valves is smoother, the clamping stagnation phenomenon is avoided, abrasion is reduced, and the service life is prolonged; and large noise generated when the upper valve and the lower valve slide is avoided.

Description

Technical Field

[0001] This utility model relates to the field of power distribution equipment technology, and specifically to a gate mechanism for power distribution equipment. Background Technology

[0002] A switchboard door mechanism is a device installed on a switchboard, primarily designed to protect the safety of operators during maintenance and repair. When entry into the switchboard is required for inspection or repair, the door mechanism automatically opens, providing a safe passage. In non-operating states, the door automatically closes to prevent accidental contact with high-voltage live parts inside the cabinet, thus reducing the risk of electric shock. Furthermore, the door mechanism also protects the internal equipment from dust, moisture, and other environmental factors, providing a degree of dust and water resistance.

[0003] For example, Chinese patent document CN202353019U discloses a switchgear insulating valve structure, including a side connecting plate device, guide rods, a support plate, an upper valve, and a lower valve. Two parallel guide rods are fixed to the switchgear wall through the support plate. The upper and lower valves are respectively fitted onto the guide rods. The two ends of the upper valve are connected by a long connecting plate and a side connecting plate device, and the two ends of the lower valve are connected by a short connecting plate and a side connecting plate device. Both the upper and lower valves are made of SMC insulating material. A limiting sleeve is provided at the upper end of the guide rod. The side connecting plate device is assembled from a side connecting plate and a support frame. The upper and lower valves of this utility model are both made of SMC insulating material, which can avoid high-voltage discharge and three-phase short circuit, and enhance the insulation strength of the equipment. Because insulating material is used, no powder coating treatment is required, the production cycle is short, and the cost is low. The use of the side connecting plate device results in a reasonable structure, high mechanical strength, and good working performance.

[0004] In the aforementioned patented structure, the upper and lower valves are directly fitted onto the guide rod. Because the upper and lower valves are in direct contact with the guide rod, the friction is high and the wear is rapid during sliding. This not only makes the upper and lower valves less flexible and smooth during sliding, but also easily leads to sliding jamming and the upper and lower valves failing to close in time, posing certain safety hazards. Furthermore, it easily causes greater wear between the upper and lower valves and the guide rod, resulting in a reduced lifespan. At the same time, since the upper and lower valves and the guide rod are all made of metal, the direct contact between the upper and lower valves and the guide rod results in significant metal friction noise during sliding.

[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0006] The present invention provides a gate mechanism for power distribution equipment to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A valve mechanism for power distribution equipment includes two symmetrically arranged guide rods and an upper valve and a lower valve movably mounted on the two guide rods. The guide rods are plated with a hard chrome layer. Both sides of the upper valve and the lower valve are provided with connecting grooves, and connecting sleeves are provided in the connecting grooves. The connecting sleeves are respectively sleeved with the two guide rods. The inner wall of the connecting sleeve is provided with a plurality of oil storage chambers radially. The oil storage chambers are all filled with lubricating oil. Wear-resistant rings are provided between two adjacent oil storage chambers. Sealing rings are provided at both ends of the inner wall of the connecting sleeve near the outlet.

[0009] Preferably, an oil inlet is provided on one side of the oil storage cavity through the surface of the connecting sleeve, and an oil seal plug is embedded in the oil inlet.

[0010] Preferably, the wear-resistant ring and the sealing ring are in close contact with the surface of the guide rod.

[0011] Beneficial effects

[0012] The above-mentioned technical solutions of one or more technical solutions in the power distribution equipment gate mechanism provided by this utility model embodiment have at least one of the following technical effects:

[0013] By providing connecting sleeves on both sides of the upper and lower valves through the above-mentioned technical solution, this utility model avoids direct contact between the upper and lower valves and the guide rod when the upper and lower valves slide, thereby reducing friction, making the valves slide more smoothly, avoiding jamming, reducing wear, and improving service life; and also avoids generating excessive noise when the upper and lower valves slide. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the connecting sleeve of this utility model;

[0016] Figure 3 for Figure 2 A magnified structural diagram at point A.

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] 1. Guide rod; 2. Upper valve; 3. Lower valve; 4. Hard chrome plating; 5. Connecting groove; 6. Connecting sleeve; 7. Oil reservoir; 8. Wear-resistant ring; 9. Sealing ring; 10. Oil inlet; 11. Oil seal plug. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.

[0023] like Figure 1-3 As shown, it is a structural schematic diagram of a power distribution equipment gate mechanism according to a preferred embodiment of the present invention.

[0024] In this embodiment, two guide rods 1 are symmetrically arranged, and an upper valve 2 and a lower valve 3 are movably mounted on the two guide rods 1. The surface of the guide rods 1 is plated with a hard chrome layer 4. Both sides of the upper valve 2 and the lower valve 3 are provided with connecting grooves 5. Connecting sleeves 6 are fixed in the connecting grooves 5 by bolts. The connecting sleeves 6 are respectively sleeved with the two guide rods 1. The inner wall of the connecting sleeve 6 is provided with a plurality of oil storage chambers 7 radially arranged at equal intervals. The oil storage chambers 7 are filled with lubricating oil, which lubricates the connection sleeve 6 and the guide rods 1, reduces friction, reduces wear, and makes sliding smoother and reduces metal noise. Wear-resistant rings 8 are provided between two adjacent oil storage chambers 7. The wear-resistant rings 8 are made of polytetrafluoroethylene. Sealing rings 9 are provided at both ends of the inner wall of the connecting sleeve 6 near the outlet. The sealing rings 9 are made of rubber.

[0025] In this embodiment, an oil inlet 10 is provided on one side of the oil storage cavity 7 through the surface of the connecting sleeve 6. An oil seal plug 11 is embedded in the oil inlet 10. During use, lubricating oil is injected into the oil storage cavity 7 through the oil inlet 10, and the oil storage cavity 7 is sealed by the oil seal plug 11.

[0026] In this embodiment, the wear-resistant ring 8 and the sealing ring 9 are both tightly fitted to the surface of the guide rod 1. The sealing ring 9 seals both ends of the inner wall of the connecting sleeve 6 to prevent lubricating oil from seeping out from the gap between the connecting sleeve 6 and the guide rod 1. The wear-resistant ring 8 improves the wear resistance between the connecting sleeve 6 and the guide rod 1.

[0027] The power distribution equipment gate mechanism of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0028] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0029] 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 power distribution equipment shutter mechanism comprising two guide rods (1) arranged symmetrically, and an upper shutter (2) and a lower shutter (3) movably arranged on the two guide rods (1), characterized in that: The guide rod (1) is plated with a hard chromium layer (4), both sides of the upper valve (2) and the lower valve (3) are provided with connecting grooves (5), the connecting grooves (5) are provided with connecting sleeves (6), the connecting sleeves (6) are sleeved with the two guide rods (1) respectively, a plurality of oil storage cavities (7) are radially arranged on the inner wall of the connecting sleeve (6), the oil storage cavities (7) are filled with lubricating oil, and wear-resistant rings (8) are arranged between adjacent two oil storage cavities (7).

2. A power distribution equipment shutter mechanism according to claim 1, wherein: An oil injection opening (10) is arranged on one side of the oil storage cavity (7) and penetrates the surface of the connecting sleeve (6), and an oil seal plug (11) is embedded in the oil injection opening (10).

3. A power distribution equipment shutter mechanism according to claim 1, wherein: The wear-resistant ring (8) and the sealing ring (9) are closely attached to the surface of the guide rod (1).

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