Sealing structure of high-voltage circuit breaker mechanism box

Abstract

The utility model provides a sealing structure of a high-voltage circuit breaker mechanism case, and relates to the technical field of sealing structures, the sealing structure of the high-voltage circuit breaker mechanism case comprises a rotating shaft provided with a first groove and a second groove; the shaft sleeve is arranged on the outer side of the circumference of the rotating shaft in a sleeving mode, an oil injection hole is formed in the shaft sleeve, and a containing cavity is defined by the shaft sleeve and the rotating shaft between the first groove and the second groove; the sealing ring comprises a first sealing ring body and a second sealing ring body, and the first sealing ring body and the second sealing ring body are arranged in the first groove and the second groove respectively. The sealing structure of the high-voltage circuit breaker mechanism box has the advantage of improving the sealing performance of the high-voltage circuit breaker mechanism box.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing structure technical field, concretely relates to a sealing structure of high voltage circuit breaker mechanism box. BACKGROUND

[0002] The circuit breaker mechanism box is a box body for storing mechanical transmission components of a circuit breaker, has the characteristics of rapidity, safety and reliability, and is mainly used for switching circuits and protecting electrical equipment to prevent damage to the equipment caused by excessively high or low voltage. It can provide a basic frame for the circuit breaker and is a basic component part for the installation, storage and transportation of the circuit breaker.

[0003] The circuit breaker mechanism box is a container for storing mechanical transmission components of a circuit breaker, and its sealing performance directly affects the stability and safety of the operation of the circuit breaker. The sealing strip is prone to aging and needs to be replaced regularly, and has poor corrosion resistance. A good sealing structure can prevent dust, moisture and other impurities from entering the mechanism box, thereby avoiding problems such as mechanical jamming and poor lubrication and ensuring the normal operation of the circuit breaker. SUMMARY

[0004] The utility model discloses a sealing structure of high voltage circuit breaker mechanism box, can improve the sealing property of circuit breaker mechanism box greatly.

[0005] In order to realize the above object and other objects, the utility model is through including the following technical schemes realizes: The utility model provides a sealing structure of high voltage circuit breaker mechanism box, the sealing structure of high voltage circuit breaker mechanism box includes: the pivot has the first recess and the second recess on the pivot,

[0006] The shaft sleeve is sleeved on the circumferential outside of the pivot, the oil injection hole is arranged on the shaft sleeve, and the shaft sleeve and the pivot enclose a containing cavity between the first recess and the second recess.

[0007] And the sealing ring includes the first sealing ring and the second sealing ring, and the first sealing ring and the second sealing ring are arranged in the first recess and the second recess respectively.

[0008] In some embodiments, a thread is arranged on one end of the pivot.

[0009] In some embodiments, a screw is arranged in the oil injection hole.

[0010] In some embodiments, the containing cavity is filled with high and low temperature resistant oil.

[0011] In some embodiments, the sealing ring is a rubber sealing ring.

[0012] The utility model provides a kind of sealing structure of high voltage circuit breaker mechanism box, compared with prior art, the utility model has the following beneficial effects: the shaft sleeve is provided with oil injection hole, silicon oil can be injected in the oil injection hole, the silicon oil is a kind of high-molecular organic silicon composition, with good heat resistance, it also has excellent chemical stability and good electrical insulation, after injecting silicon oil, screw sealing can isolate water vapor dust etc.Ordinary sealing strip is easy to age, needs to be replaced regularly, compared with ordinary sealing strip, oil seal sealing structure has better sealing effect, and service cycle is also longer. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 The sealing structure of the high-voltage circuit breaker mechanism box of the utility model is shown as a whole structure schematic diagram;

[0015] Figure 2 The high-voltage circuit breaker of the utility model is shown as a whole structure schematic diagram;

[0016] Figure 3 The sealing structure of the high-voltage circuit breaker mechanism box of the utility model is shown as a sealing ring schematic diagram;

[0017] Figure 4 The sealing structure of the high-voltage circuit breaker mechanism box of the utility model is shown as a sectional view;

[0018] Figure 5 The sealing structure of the high-voltage circuit breaker mechanism box of the utility model is shown as a shaft schematic diagram.

[0019] In the drawings, the components represented by each reference numeral are listed as follows:

[0020] 1, shaft; 11, thread; 12, nut; 13, first groove; 14, second groove; 2, shaft sleeve; 21, oil injection hole; 22, accommodating cavity; 3, rotating rod; 4, sealing ring; 41, first sealing ring; 42, first sealing ring; 5, mechanism box. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] As shown in Figure 1 and Figure 2 The utility model provides a kind of sealing structure of high voltage circuit breaker mechanism box, the sealing structure of high voltage circuit breaker mechanism box includes rotating shaft 1, one end of the rotating shaft 1 can be located inside mechanism box 5, the other end of the shaft sleeve 2 can be located outside the mechanism box 5, the rotating shaft 1 one end located outside the mechanism box 5 can be equipped with rotating lever 3, the rotating lever 3 can be used to operate the operation of breaking or closing and energy storage.The rotating shaft 1 is provided with screw thread 11 on the side close to the outside of the mechanism box 5, and the screw thread 11 can cooperate with nut 12.The rotating shaft 1 has first recess 13 and second recess 14, and the first recess 13 and the second recess 14 have a receiving cavity 22 therebetween, specifically, the shaft sleeve 2 and the rotating shaft 1 enclose the receiving cavity 22 between the first recess 13 and the second recess 14.

[0023] As shown in Figure 1 and Figure 4 The sealing structure of high voltage circuit breaker mechanism box includes shaft sleeve 2, the shaft sleeve 2 is sleeved on the circumferential outside of the rotating shaft 1, the shaft sleeve 2 is provided with oil injection hole 21, and the oil injection hole 21 is provided with screw. The receiving cavity 22 is filled with high and low temperature resistant oil, specifically, it can be silicone oil, the silicone oil is a high molecular organic silicone composition, has good heat resistance, also has excellent chemical stability and good electrical insulation performance, after injecting silicone oil, it is sealed with screw, can isolate water vapor dust etc., has good sealing property.

[0024] As shown in Figure 3 and Figure 4 The sealing structure of high voltage circuit breaker mechanism box includes sealing ring 4, the sealing ring 4 is sleeved on the rotating shaft 1 and located in the shaft sleeve 2, the sealing ring 4 can be rubber sealing ring 4, the sealing ring 4 can guarantee the sealing property of the shaft sleeve 2, the sealing ring 4 includes first sealing ring 41 and second sealing ring 42, the first sealing ring 41 is arranged in the first recess 13, and the second sealing ring 42 is arranged in the second recess 14.

[0025] The utility model discloses a working principle: the silicone oil is injected into the oil injection hole 21, and the screw is sealed, can insulate water vapor dust etc.

[0026] In the description of the utility model, it is explained that when an element is called "fixed on" or "set on" another element, it can be directly on another element or indirectly set on another element; when an element is called "connected to" another element, it can be directly connected to another element or indirectly connected to another element.

[0027] It is understood that the terms "height", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0029] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings for the embodiments disclosed are to be considered merely for purposes of illustrative understanding and are not intended to limit the application to the specific embodiments illustrated. Any modification, change, or variation that is not deemed to affect the essential characteristics of the application is to be considered within the scope of the application.

[0031] The above description of disclosed embodiments allows a person skilled in the art to implement or use the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure of a high-voltage circuit breaker mechanism tank, characterized by: The sealing structure comprises: a rotating shaft, which has a first groove and a second groove; a shaft sleeve, which is sleeved outside the circumference of the rotating shaft, and has an oil injection hole, and the shaft sleeve and the rotating shaft enclose a containing cavity between the first groove and the second groove; and a sealing ring, which comprises a first sealing ring and a second sealing ring, and the first sealing ring and the second sealing ring are arranged in the first groove and the second groove respectively.

2. The sealing structure of a high-voltage circuit breaker mechanism tank according to claim 1, characterized by: One end of the rotating shaft is provided with a thread.

3. The sealing structure of a high-voltage circuit breaker mechanism tank according to claim 1, characterized by: The oil injection hole is provided with a screw.

4. The sealing structure of a high-voltage circuit breaker mechanism tank according to claim 1, characterized by: The containing cavity is filled with high and low temperature resistant oil.

5. The sealing structure of a high-voltage circuit breaker mechanism tank according to claim 1, characterized by: The sealing ring is a rubber sealing ring.

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