Knife switch protective cover of primary and secondary fusion vacuum circuit breaker

Abstract

The utility model relates to the technical field of power equipment, in particular to a disconnecting link protective cover of a primary and secondary fusion vacuum circuit breaker, which comprises a first cover body, a second cover body and a fixed cover body, through the integrated design, comprehensive protection of the disconnecting link is realized. Through the detachable design, the installation and maintenance process is simplified; through the design of the deformation elastic sheet and the inner buckle, the device is suitable for circuit breaker disconnecting links of different models; the device has the advantages of comprehensive protection, convenience in installation, high adaptability and high safety, and can be widely applied to disconnecting link protection of the vacuum circuit breaker.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment more particularly, it relates to a one two fusion vacuum circuit breaker's knife switch protection cover. BACKGROUND

[0002] In the power system, the vacuum circuit breaker is the important equipment of guaranteeing the safe operation of power grid, and its knife switch part is directly related to the operation safety and reliability of circuit breaker, however, the existing knife switch protection cover has the following technical problems, the traditional protection cover only covers a part of the knife switch, cannot completely adapt to the knife switch part of circuit breaker, leads to cannot play a role, it is difficult to avoid that animals climb to the live exposed part and cause short circuit, causes the fault, at the same time, the traditional protection cover structure is complex, and the installation and dismounting process are tedious, increase the maintenance workload, and lack effective fixing and sealing design, possibly lead to the loosening or exposure of the knife switch during operation, there are security risks, for example, the shielding type knife switch protection cover with patent publication No. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a one two fusion vacuum circuit breaker's knife switch protection cover to solve the problems in the background art.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a one two fusion vacuum circuit breaker's knife switch protection cover, including the protection cover body;The protection cover body includes: the first cover body for covering one end of the circuit breaker knife switch, the second cover body for covering the other end of the circuit breaker knife switch and the fixed cover body for fixing and installing the protection cover body on the circuit breaker knife switch;The first cover body is fixedly connected with one end of the fixed cover body;The second cover body is fixedly connected with the other end of the fixed cover body;The fixed cover body is provided with a fixed cavity for accommodating the circuit breaker knife switch;The first cover body is provided with a first accommodating cavity for accommodating one end of the circuit breaker knife switch;The second cover body is provided with a second accommodating cavity for accommodating the other end of the circuit breaker knife switch;The first accommodating cavity, the second accommodating cavity and the fixed cavity are communicated with each other;The first cover body, the fixed cover body and the second cover body are integrally formed.

[0005] Optionally, the first cover includes: a first covering portion, a connecting portion, a mounting portion, and a cut-off portion; one end of the first covering portion is fixedly connected to one end of the fixed cover, and the other end is fixedly connected to one end of the connecting portion; the other end of the connecting portion is fixedly connected to one end of the mounting portion; the other end of the mounting portion is detachably connected to the cut-off portion; the first covering portion, the connecting portion, the mounting portion, and the cut-off portion cooperate to form the first receiving cavity; the cross-sectional length of the mounting portion and the cut-off portion is greater than the cross-sectional length of the first covering portion to form a first cavity for accommodating the circuit breaker disconnector connecting bolt; the first cavity communicates with the first receiving cavity; the cross-sectional length of the connecting portion gradually increases from the end near the first covering portion along the centerline of the connecting portion.

[0006] Optionally, the fixing cover includes: a fixing part and two deformable spring pieces; the two deformable spring pieces are fixedly connected to both sides of the fixing part to form the fixing cavity; openings are provided on the opposing surfaces of the two deformable spring pieces; the two openings cooperate to form mounting ports for installing tools on the two deformable spring pieces respectively; the fixing part is also provided with an inner buckle for engaging with the circuit breaker switch; the inner buckle is located in the second receiving cavity.

[0007] Optionally, the second cover includes: a second cover portion; a second receiving cavity disposed within the second cover portion; the second cover portion being fixedly connected to the other end of the fixed cover; symmetrical protrusions are provided on both sides of the second cover portion; the two protrusions cooperate with the second cover portion to form a second cavity for accommodating the circuit breaker disconnector connecting bolt; the second cavity is in communication with the second receiving cavity.

[0008] Optionally, a silicone protective component is provided on the cut-off portion.

[0009] Optionally, the mounting portion is provided with mounting holes for mounting the silicone protective component.

[0010] In summary, this utility model has the following beneficial effects:

[0011] 1. The integrated design of the first cover, second cover, and fixed cover provides comprehensive protection for the disconnect switch; it features a convenient installation structure, simplifying installation and maintenance through the design of detachable cut-off and mounting parts; the deformable spring and internal snap-fit ​​design within the fixed cover on the protective cover body adapts to different models of circuit breaker disconnect switches, ensuring that the protective cover body is well fixed to the circuit breaker disconnect switch even in severe weather, preventing detachment or falling off. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 is the main body structure side view schematic diagram of the utility model;

[0014] Figure 3 is the main body structure bottom view schematic diagram of the utility model.

[0015] In the figure: 1, protective cover body;11, fixed cavity;12, first containing cavity;13, second containing cavity;2, first cover body;21, first cover set part;22, connecting part;23, mounting part;231, mounting hole;24, cut-off part;25, first cavity;3, second cover body;31, second cover set part;32, convex part;33, second cavity;4, fixed cover body;41, fixed part;42, deformation elastic sheet;43, mounting port;44, inner buckle;5, silica gel protection piece. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiment of the utility model is explained in detail below in conjunction with the drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein.

[0017] In the utility model, unless another explicit provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected;Can be mechanically connected, or electrically connected;Can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0018] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] This utility model provides a knife switch protective cover for a primary and secondary integrated vacuum circuit breaker, such as Figure 1 As shown, the device includes a protective cover body 1; the protective cover body 1 includes: a first cover 2 for covering one end of the circuit breaker disconnect switch, a second cover 3 for covering the other end of the circuit breaker disconnect switch, and a fixed cover 4 for fixing the protective cover body 1 onto the circuit breaker disconnect switch; the first cover 2 is fixedly connected to one end of the fixed cover 4; the second cover 3 is fixedly connected to the other end of the fixed cover 4; the fixed cover 4 has a fixed cavity 11 for accommodating the circuit breaker disconnect switch; the first cover 2 has a first accommodating cavity 12 for accommodating one end of the circuit breaker disconnect switch; the second cover 3 has a second accommodating cavity 13 for accommodating the other end of the circuit breaker disconnect switch; the first accommodating cavity 12, the second accommodating cavity 13 and the fixed cavity 11 are interconnected; the first cover 2, the fixed cover 4 and the second cover 3 are integrally formed.

[0021] Specifically, when the protective cover body 1 is placed over the knife switch part of the vacuum circuit breaker, the protective cover body 1 is installed and fixed to the knife switch part of the vacuum circuit breaker by fixing the cover body 4, so that the knife switch part is completely contained in the first receiving cavity 12, the second receiving cavity 13 and the fixing cavity 11, and then protected by the protective cover body 1, so as to achieve comprehensive protection of the knife switch.

[0022] Optional, such as Figure 3 As shown, the overall shape of the protective cover body 1 is convex, which is more suitable for the shape of the switch part of the vacuum circuit breaker, and can better wrap and house the switch part of the vacuum circuit breaker, thereby achieving a better protection effect.

[0023] Further, the first cover 2 includes: a first covering portion 21, a connecting portion 22, a mounting portion 23, and a cut-off portion 24; one end of the first covering portion 21 is fixedly connected to one end of the fixed cover 4, and the other end is fixedly connected to one end of the connecting portion 22; the other end of the connecting portion 22 is fixedly connected to one end of the mounting portion 23; the other end of the mounting portion 23 is detachably connected to the cut-off portion 24; the first covering portion 21, the connecting portion 22, the mounting portion 23, and the cut-off portion 24 cooperate to form the first receiving cavity 12; the cross-sectional length of the mounting portion 23 and the cut-off portion 24 is greater than the cross-sectional length of the first covering portion 21 to form a first cavity 25 for accommodating the circuit breaker disconnector connecting bolt; the first cavity 25 communicates with the first receiving cavity 12; the cross-sectional length of the connecting portion 22 gradually increases from the end near the first covering portion 21 along the centerline of the connecting portion 22.

[0024] In Example 1, as Figures 1-2 As shown, the first receiving cavity 12 formed by the first covering part 21, the connecting part 22, the mounting part 23 and the cutting part 24 is used to house a part of the knife switch of the protective vacuum circuit breaker. At the same time, the cross-sectional length of the mounting part 23 and the cutting part 24 is greater than the cross-sectional length of the first covering part 21, which adds an extra first cavity 25 for housing the connecting bolts protruding in the part of the knife switch. This makes the protective cover fit the shape of the knife switch part of the vacuum circuit breaker more closely, so that it perfectly fits and protects the knife switch part of the vacuum circuit breaker.

[0025] Furthermore, the fixed cover 4 includes: a fixed part 41 and two deformable spring pieces 42; the two deformable spring pieces 42 are fixedly connected to both sides of the fixed part 41 to form the fixed cavity 11; openings are provided on the opposing surfaces of the two deformable spring pieces 42; the two openings cooperate to form mounting ports 43 for installing tools on the two deformable spring pieces 42 respectively; the fixed part 41 is also provided with an inner buckle 44 for engaging with the circuit breaker switch; the inner buckle 44 is located in the second receiving cavity 13.

[0026] In Example 2, as Figures 1-2As shown, during the installation of the protective cover body 1, an external installation tool is inserted into the mounting opening 43 between the deformable spring pieces 42 to easily pry open the deformable spring pieces 42, thereby allowing the switch portion of the vacuum circuit breaker to be placed in the fixing cavity 11. After being placed in the fixing cavity 11, the installation tool is separated from the deformable spring pieces 42, allowing the deformable spring to reset according to its own material toughness, thereby wrapping and clamping the switch portion of the circuit breaker, thus fixing the protective cover body 1 to the switch portion of the circuit breaker. After fixing, the inner buckle 44 in the fixing cavity 11 simultaneously abuts against the switch portion of the circuit breaker, preventing the protective cover body 1 from moving up and down under the influence of severe weather or other environmental factors, thus preventing it from detaching from the switch portion of the circuit breaker.

[0027] Further, the second cover 3 includes: a second cover portion 31; a second receiving cavity 13 disposed within the second cover portion 31; the second cover portion 31 is fixedly connected to the other end of the fixed cover 4; protrusions 32 are symmetrically arranged on both sides of the second cover portion 31; the two protrusions 32 cooperate with the second cover portion 31 to form a second cavity 33 for accommodating the circuit breaker disconnector connecting bolt; the second cavity 33 communicates with the second receiving cavity 13.

[0028] In Example 3, as Figures 1-2 As shown, the second cover part 31 can better cover the other end of the circuit breaker's disconnector section. At the same time, two protrusions 32 are provided on the second cover part 31, forming a shark tail shape. While adapting to the connecting bolts of the circuit breaker's disconnector section, it also better increases the protection range of the protective cover body 1, thus further protecting the circuit breaker.

[0029] Furthermore, a silicone protective component 5 is provided on the cut-off portion 24.

[0030] In other embodiments, by installing a silicone protective element 5 on the cut-off portion 24, the silicone protective element 5 can not only increase the protection range of the protective cover body 1, but also add a marking element on it to serve as a warning.

[0031] Furthermore, the mounting part 23 is provided with mounting holes 231 for mounting the silicone protective component 5.

[0032] In other embodiments, since the switch of the vacuum circuit breaker may be smaller than the size of the protective cover body 1, the cut-off part 24 can be cut off to reduce the size of the protective cover body 1. After the size is reduced, the silicone protective part 5 can also be installed through the mounting hole 231 on the mounting part 23, which further increases the scene adaptability of the protective cover.

[0033] This utility model discloses a protective cover for the knife switch of a primary and secondary integrated vacuum circuit breaker. Through the integrated molding design of the first cover 2, the second cover 3, and the fixed cover 4, it achieves comprehensive protection for the knife switch. It has a convenient installation structure, which simplifies the installation and maintenance process through the design of the detachable cut-off part 24 and the mounting part 23. Through the design of the deformable spring piece 42 and the inner buckle 44 in the fixed cover 4 on the protective cover body 1, it can adapt to different models of circuit breaker knife switches. Even in severe weather, it can fix the protective cover body 1 to the knife switch part of the circuit breaker well and prevent it from detaching or falling off.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A protective cover for the disconnector of a primary and secondary integrated vacuum circuit breaker, characterized in that, Includes a protective cover body; the protective cover body includes: a first cover for covering one end of the circuit breaker disconnector, a second cover for covering the other end of the circuit breaker disconnector, and a fixed cover for fixing the protective cover body onto the circuit breaker disconnector. The first cover is fixedly connected to one end of the fixed cover; the second cover is fixedly connected to the other end of the fixed cover. The fixed enclosure is provided with a fixed cavity for accommodating the circuit breaker disconnector; the first enclosure is provided with a first receiving cavity for accommodating one end of the circuit breaker disconnector; the second enclosure is provided with a second receiving cavity for accommodating the other end of the circuit breaker disconnector; the first receiving cavity, the second receiving cavity, and the fixed cavity are interconnected. The first cover, the fixed cover, and the second cover are integrally formed.

2. The knife switch protective cover of a primary and secondary integrated vacuum circuit breaker according to claim 1, characterized in that, The first cover includes: a first covering part, a connecting part, a mounting part, and a cutting part; One end of the first covering part is fixedly connected to one end of the fixed cover body, and the other end is fixedly connected to one end of the connecting part; the other end of the connecting part is fixedly connected to one end of the mounting part; the other end of the mounting part is detachably connected to the cut-off part; the first covering part, the connecting part, the mounting part, and the cut-off part cooperate to form the first receiving cavity. The cross-sectional lengths of the mounting portion and the cut-off portion are greater than the cross-sectional length of the first cover portion to form a first cavity for accommodating the circuit breaker disconnector connecting bolt; the first cavity is in communication with the first receiving cavity; the cross-sectional length of the connecting portion gradually increases from one end near the first cover portion along the centerline of the connecting portion.

3. The knife switch protective cover of a primary and secondary integrated vacuum circuit breaker according to claim 1, characterized in that, The fixed cover includes: a fixed part and two deformable spring pieces; the two deformable spring pieces are fixedly connected to both sides of the fixed part to form the fixed cavity; Both of the deformable spring sheets have openings on their opposite surfaces; the two openings cooperate to form mounting ports for installing tools on the two deformable spring sheets respectively. The fixing part is also provided with an inner buckle for engaging with the circuit breaker switch; the inner buckle is located in the second receiving cavity.

4. The knife switch protective cover of a primary and secondary integrated vacuum circuit breaker according to claim 1, characterized in that, The second cover includes: a second cover section; The second receiving cavity is disposed inside the second cover portion; the second cover portion is fixedly connected to the other end of the fixed cover body; the two sides of the second cover portion are symmetrically provided with protrusions; the two protrusions cooperate with the second cover portion to form a second cavity for accommodating the circuit breaker disconnector connecting bolt; the second cavity communicates with the second receiving cavity.

5. The knife switch protective cover of a primary and secondary integrated vacuum circuit breaker according to claim 2, characterized in that, A silicone protective component is provided on the cut-off portion.

6. The knife switch protective cover of a primary and secondary integrated vacuum circuit breaker according to claim 5, characterized in that, The mounting section is provided with mounting holes for mounting the silicone protective component.

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