Isolation disconnecting link

Abstract

The invention relates to the technical field of power equipment, in particular to an isolation disconnecting link which comprises an executing mechanism rotationally arranged on a contact, the executing mechanism comprises a gate plate and an abutting portion arranged on the gate plate, and the abutting portion is provided with an entering channel. The improvement effectively solves the problem that a traditional pull ring is inconvenient to operate. Operators can hook and pull the device more easily, the alignment difficulty is reduced, and the operation time and labor are greatly saved. In extreme weather, the convenience is more prominent, an operator can be ensured to smoothly complete the operation of the disconnecting link, the reliability and the safety of the operation are improved, and the stable operation of a power system is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to an isolating knife switch. Background Art

[0002] As the requirements for the safe distance between 10kV distribution lines and the ground are increased, the installation position of the isolation knife switch also becomes higher, which brings many problems. For example, the operation becomes more difficult and time-consuming, and emergency operations are easily delayed, affecting fault handling. There is a safety threat to operators. As the number of insulating rod sections increases, the sagging arc of the insulating rod also increases, making operation more difficult. Moreover, when the operator is operating from below, the hole observed is flat, and most of the time it is operated by feeling. It is difficult to align the insulating rod with the knife switch hole, and the difficulty of daily operation and maintenance increases. For this reason, an isolation knife switch is proposed. Summary of the invention

[0003] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide an isolating knife switch.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an isolating knife switch, comprising an actuator rotatably arranged on a contact, the actuator comprising a gate plate and a resistance portion arranged on the gate plate, and an entry channel is provided on the resistance portion.

[0006] As a preferred solution of the isolating knife switch of the present invention, the abutting portion is an annular body.

[0007] As a preferred solution of the isolating knife switch of the present invention, there are two abutting parts, and the two abutting parts are symmetrically arranged.

[0008] As a preferred solution of the isolation knife switch of the present invention, the abutment portion is in an I-shape, and the entry channel is symmetrically opened on the abutment portion.

[0009] As a preferred solution of the isolating knife switch of the present invention, the abutting portion is U-shaped.

[0010] As a preferred solution of the isolating knife switch of the present invention, a slope surface is provided on the abutting portion.

[0011] As a preferred solution of the isolating knife switch of the present invention, an expansion strip is provided on the abutting portion.

[0012] As a preferred solution of the isolating knife switch of the present invention, the abutting portion is an arc-shaped groove.

[0013] As a preferred solution of the isolation knife gate of the present invention, a blocking block is provided on the gate plate.

[0014] As a preferred solution of the isolating knife switch of the present invention, the blocking block is provided with an inner arc surface, and the blocking block is provided with an outer arc surface.

[0015] Beneficial effects of the isolation knife switch of the present invention: The present invention effectively solves the problem of inconvenient operation of the traditional pull ring by setting an access channel on the resistance part. It can make it easier for operators to hook and pull, reduce the difficulty of alignment, and greatly save operation time and manpower. In extreme weather, its convenience is more prominent, which can ensure that the operator can successfully complete the knife switch operation, improve the reliability and safety of the operation, and ensure the stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is the overall schematic diagram of the isolation knife switch.

[0018] Figure 2 It is a structural diagram of embodiment 2.

[0019] Figure 3 This is a schematic diagram of the structure of the third embodiment.

[0020] Figure 4 It is a structural diagram of embodiment 4.

[0021] Figure 5 It is a schematic diagram of the connection structure between the interference portion and the expansion strip in the fourth embodiment.

[0022] Figure 6 This is a structural diagram of Embodiment 5.

[0023] In the figure: 100, actuator; 101, gate; 102, resistance part; 103, entry channel; 104, blocking block; 104a, inner arc surface; 104b, outer arc surface; 105, expansion strip; 106, slope surface. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1, reference Figure 1 , which is the first embodiment of the present invention, and provides an isolating knife switch, including an actuator 100 rotatably arranged on a contact, the actuator 100 includes a gate 101, and a resisting portion 102 arranged on the gate 101, and an entry channel 103 is arranged on the resisting portion 102;

[0028] The abutment portion 102 and the gate plate 101 are an integrated structure.

[0029] Specifically, the isolating knife switch has a bracket, two insulating supports are provided above the bracket, and contacts are provided on the two insulating supports. The actuator 100 is rotatably connected to one of the contacts. By rotating the actuator 100, the gate 101 contacts the two contacts at the same time, thereby realizing the closing of the line.

[0030] When closing the circuit breaker, one end of the insulating rod slides directly on the surface of the gate plate 101 and slides into the channel 103, thus completing the connection between the end of the insulating rod and the gate plate 101. At this time, the closing operation can be performed through the insulating rod. The insulating rod is pushed up to rotate the gate plate 101 so that both ends of the gate plate 101 are connected to the contacts. After the closing operation is completed, the insulating rod and the gate plate 101 are directly separated by pulling down the insulating rod.

[0031] Due to the increase in the distance from the ground, the curvature of the insulating rod will increase when used. In this operation mode, when the end of the insulating rod rests on the gate plate 101, even if shaking occurs, the gate plate 101 in the unclosed state will be deflected by gravity against the surface of the insulating rod. It only needs to cause relative sliding between the gate plate 101 and the end of the insulating rod to slide the end of the insulating rod into the resistance part 102 through the entry channel 103 to perform the closing operation, which greatly reduces the difficulty of operating the insulating rod.

[0032] When opening the gate, since the gate plate 101 is in a fixed state after closing, the end of the insulating rod can slide on the gate plate 101 with the gate plate 101 as a support, so that the end of the insulating rod can slide into the resistance part 102 through the entry channel 103. At this time, pulling down the insulating rod can complete the opening of the gate, reducing the difficulty of opening the gate.

[0033] It should be noted that the round hole pull ring of the traditional isolation knife switch often requires more precise alignment and greater strength during operation, especially under extreme weather conditions such as strong winds, freezing, ice and snow, the difficulty of operation increases significantly, which may lead to prolonged operation time or even failure to operate normally. The present invention provides an entry channel 103 on the resistance part 102. This improvement effectively solves the problem of inconvenient operation of the traditional pull ring. It can make it easier for operators to hook and pull, reduce the difficulty of alignment, and greatly save operation time and manpower. In extreme weather, its convenience is more prominent, which can ensure that the operator can successfully complete the knife switch operation, improve the reliability and safety of the operation, and ensure the stable operation of the power system.

[0034] When using an insulating rod to operate the isolating knife switch, the operation time is short, which reduces the time it takes to lift the insulating rod. From the perspective of energy consumption, holding the insulating rod for a long time will cause the operator's muscles to continue to exert force, easily causing fatigue and consuming more physical strength. The shortened operation time allows the operator to apply force to the insulating rod in a shorter time to complete the operation, achieving a labor-saving effect.

[0035] In summary, this design can make the opening and closing operations of the knife switch easier. The operator can change the state of the knife switch through a simple hooking action. Compared with the traditional complex operating mechanism, it can effectively reduce the difficulty of operation and reduce the time and manpower required for operation. This simple structure can prevent the already closed knife switch from loosening due to improper operation of the insulating rod at the end of the operation of the knife switch, thus avoiding secondary closing. This design helps to simplify the overall structure of the isolation knife switch and make it more compact. Compared with some knife switches with complex structures, it can occupy a smaller space under the same functional requirements, which is conducive to use in electrical equipment layout environments with limited space.

[0036] Example 2, reference Figure 2 , which is the second embodiment of the present invention. Different from the previous embodiment, the abutment portion 102 is an annular body, and the annular body is arranged to facilitate the end of the insulating rod to slide out from the entry channel 103 when it is disengaged.

[0037] Specifically, two resistance parts 102 are provided, and the two resistance parts 102 are symmetrically arranged. The symmetrical structural arrangement allows the operator to arbitrarily select any resistance part 102 and any entry channel 103 when opening the gate, thereby further improving the opening efficiency and reducing the opening difficulty.

[0038] The rest of the structure is the same as that of Example 1.

[0039] Example 3, reference Figure 3 , which is the third embodiment of the present invention. Different from the previous embodiment, the abutment portion 102 is in an I-shape, and the entry channels 103 are symmetrically opened on the abutment portion 102. In this embodiment, when opening the gate, any entry channel 103 on the abutment portion 102 can be selected for opening the gate, and when closing the gate, the entry channel 103 closer to the rotation point of the gate plate 101 can be selected for closing the gate.

[0040] The rest of the structure is the same as that of Example 1.

[0041] Example 4, reference Figure 4 , which is the fourth embodiment of the present invention. Different from the previous embodiment, the abutment portion 102 is U-shaped. In this embodiment, the setting of the U-shaped opening reduces the difficulty of the insulating rod sliding into the abutment portion 102.

[0042] A slope surface 106 is provided on the abutting portion 102 . The slope surface 106 is provided to facilitate guiding the end of the insulating rod to slide into the channel 103 .

[0043] Reference Figure 5 An expansion strip 105 is provided on the abutting portion 102 . The expansion strip 105 is provided to facilitate guiding the end of the insulating rod to slide into the channel 103 .

[0044] The rest of the structure is the same as that of Example 1.

[0045] Example 5, reference Figure 6 , which is the fifth embodiment of the present invention. Different from the previous embodiment, the abutment portion 102 is an arc-shaped groove. The arrangement of the arc-shaped groove can reduce the volume of the device and make the structure more compact. It should be noted that the opening of the arc-shaped groove changes from large to small, and the larger opening can facilitate the end of the insulating rod to slide in.

[0046] A blocking block 104 is disposed on the gate plate 101. In this embodiment, the blocking block 104 is disposed to facilitate guiding the end of the insulating rod to slide into the arc-shaped groove.

[0047] The blocking block 104 is provided with an inner arc surface 104a, and the blocking block 104 is provided with an outer arc surface 104b. In this embodiment, the setting of the inner arc surface 104a and the outer arc surface 104b can guide the sliding direction of the insulating rod when it slides on the gate surface, making it convenient for the operator to slide the end of the insulating rod into the channel 103.

[0048] The rest of the structure is the same as that of Example 1.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An isolation knife switch, characterized in that: The invention comprises an actuator (100) rotatably arranged on a contact, wherein the actuator (100) comprises a gate plate (101) and a resistance part (102) arranged on the gate plate (101), wherein an entry channel (103) is arranged on the resistance part (102).

2. The isolating knife switch according to claim 1, characterized in that: The abutment portion (102) is an annular body.

3. The isolating knife switch according to claim 1 or 2, characterized in that: Two abutting portions (102) are provided, and the two abutting portions (102) are symmetrically arranged.

4. The isolating knife switch according to claim 1, characterized in that: The abutment portion (102) is in an I-shape, and the entry channel (103) is symmetrically arranged on the abutment portion (102).

5. The isolation knife switch according to claim 1, characterized in that: The interference portion (102) is U-shaped.

6. The isolation switch according to claim 5, characterized in that: The abutment portion (102) is provided with a slope surface (106).

7. The isolating knife switch according to claim 5 or 6, characterized in that: An expansion strip (105) is provided on the abutting portion (102).

8. The isolation switch according to claim 1, characterized in that: The abutment portion (102) is an arc-shaped groove.

9. The isolating knife switch according to claim 8, characterized in that: A blocking block (104) is provided on the gate plate (101).

10. The isolation knife switch according to claim 9, characterized in that: The blocking block (104) is provided with an inner arc surface (104a), and the blocking block (104) is provided with an outer arc surface (104b).

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