Isolation grounding three-position switch operating mechanism

Abstract

The utility model discloses an isolating and grounding three-position switch operating mechanism, which comprises a first mounting plate, a second mounting plate, a third mounting plate, a grounding switch operating shaft, an isolating switch operating shaft and a main shaft, the first mounting plate, the second mounting plate and the third mounting plate are sequentially mounted at intervals; a main shaft disc is rotationally mounted on the first mounting plate; grooves are formed in the two sides of the main shaft disc; one end of the grounding switch operation shaft and one end of the isolation switch operation shaft sequentially penetrate through the second installation plate and the first installation plate and then are connected to one end of a transmission piece, and the other end of the transmission piece is arranged in a groove of the main shaft disc. The third mounting plate is provided with operation holes at positions opposite to the grounding switch operation shaft and the isolation switch operation shaft. An elastic piece is arranged between the grounding switch operating shaft and the isolating switch operating shaft; the spindle is rotatably mounted on the second mounting plate, one end is connected with the spindle disc through a transmission assembly, and the other end is connected with a separation blade assembly. The interlocking device has the advantages of simple structure, low cost, reliable interlocking and the like.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to three position switch operating mechanism technical field, concretely relates to a kind of isolated ground three position switch operating mechanism. BACKGROUND

[0002] Three position switch operating mechanism is mainly used to control the isolation of three position switch and ground switch, and the operating mechanism is connected to the ground switch. Three position switch is used in a large amount in complete electrical equipment, and it integrates the functions of isolating switch and grounding switch. The working position is unique at a certain time, and mechanical interlocking is realized to prevent the main circuit from being grounded and to avoid the danger caused by misoperation. The three position operating mechanism requires that the mechanism can be arbitrarily selected to close or ground when it is in the open position, but only open after closing or grounding. Most of the current three position switch operating mechanisms have complex overall structure, cannot maintain the stability and reliability of the mechanism, have poor stability and flexibility during overall operation, and have low mechanical life. Therefore, it is urgent to optimize the structure of the three position switch operating mechanism. SUMMARY

[0003] In view of the technical problems existing in the prior art, the utility model provides an isolated ground three position switch operating mechanism with simple structure, low production cost, reliable interlocking, high stability, high mechanical life and high safety.

[0004] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0005] An isolated ground three position switch operating mechanism includes a first mounting plate, a second mounting plate, a third mounting plate, a grounding switch operating shaft, an isolating switch operating shaft and a main shaft. The first mounting plate, the second mounting plate and the third mounting plate are installed in sequence with a gap.

[0006] The first mounting plate is provided with a main shaft disc rotatably installed on one side thereof. The main shaft disc is provided with a groove on both sides thereof.

[0007] One end of the grounding switch operating shaft and the isolating switch operating shaft passes through the second mounting plate and the first mounting plate in sequence and is connected to one end of a transmission member. The other end of the transmission member is placed in the groove of the main shaft disc. The third mounting plate is provided with an operating hole opposite the grounding switch operating shaft and the isolating switch operating shaft.

[0008] The elastic member is arranged between the grounding switch operating shaft and the isolating switch operating shaft.

[0009] The main shaft is rotatably installed on the second mounting plate, and one end thereof is connected to the main shaft disc through a transmission assembly, and the other end is connected to a baffle assembly.

[0010] As a further improvement of the above technical scheme:

[0011] The baffle assembly comprises a triangular plate and two baffles, one end of the two baffles is rotatably installed on the third mounting plate, the other end of the two baffles is provided with a straight slot, one corner of the triangular plate is connected with the main shaft, and the other two corners of the triangular plate are respectively slidably arranged in the straight slots of the two baffles.

[0012] The transmission assembly comprises a first transmission rod, a second transmission rod and a third transmission rod; one end of the first transmission rod is connected with the main shaft disc, and the other end of the first transmission rod is connected with the main shaft through the second transmission rod and the third transmission rod in sequence.

[0013] The first transmission rod and the third transmission rod are in a straight line shape; and the second transmission rod is in a C shape.

[0014] The other end of the transmission member is provided with a roller, and the roller is arranged in the groove of the main shaft disc.

[0015] The elastic member is a closing and opening spring and is located between the first mounting plate and the second mounting plate.

[0016] Rotary pressing plates are arranged on the grounding switch operating shaft and the disconnecting switch operating shaft, and the elastic member is located between the rotary pressing plate on the grounding switch operating shaft and the rotary pressing plate on the disconnecting switch operating shaft.

[0017] The grooves on the two sides of the main shaft disc are in a flared shape.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] When the dedicated tool is used to rotate the grounding or isolating operating shaft, the operating shaft is rotated, the rotary pressing plate on the operating shaft drives the closing and opening spring to change in length, the closing and opening spring is compressed during initial closing operation, and when the rotary pressing plate reaches the inflection point state under the action of human force, the closing and opening spring releases energy, so that the transmission member at the tail end of the operating shaft moves in the U-shaped groove of the main shaft disc, the main shaft disc is rotated, and the closing of the isolating and grounding three-position switch is realized.

[0020] The roller arranged on the transmission member can reduce the friction force during movement, the mechanism is more labor-saving during transmission, the use of a spring with excessive elasticity is avoided, the impact on the mechanism body and the switch body is reduced, and the mechanical life of the operating mechanism can be effectively increased. Because of the existence of the spring force, after the closing operation is completed, the spring force can help the three-position switch to realize self-locking in the state. When the three-position switch is in the live operating state, the contact will vibrate slightly due to the existence of the electric force, and the three-position switch operating mechanism can assist the three-position switch to maintain the closing state, so that the reliability and safety of the three-position switch operation are improved.

[0021] The utility model discloses a slow opening action of the opening and closing spring is realized by the manual compression of the opening and closing spring, and the impact force to the mechanism body is reduced, and the mechanical life of the mechanism body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the internal structure diagram of the operation mechanism of the utility model in the embodiment.

[0023] Figure 2 It is the internal structure diagram of the operation mechanism of the utility model in the embodiment.

[0024] Figure 3 It is the internal structure diagram of the operation mechanism of the utility model in the embodiment.

[0025] Figure 4 It is the internal structure diagram of the operation mechanism of the utility model in the embodiment.

[0026] Figure 5 It is the external structure diagram of the operation mechanism of the utility model in the embodiment.

[0027] Legend: 1, first mounting plate;2, second mounting plate;3, third mounting plate;301, grounding switch operation hole;302, isolating switch operation hole;4, grounding switch operation shaft;5, isolating switch operation shaft;6, main shaft;7, transmission assembly;701, first transmission rod;702, second transmission rod;703, third transmission rod;8, baffle assembly;801, triangular plate;802, baffle;9, main shaft disc;10, elastic piece;11, rotary pressing plate;12, transmission piece;121, roller. DETAILED DESCRIPTION

[0028] The utility model is further described below in combination with the drawings and specific embodiments.

[0029] As Figure 1 The utility model discloses an isolated grounding three station switch operation mechanism, including first mounting plate 1, second mounting plate 2, third mounting plate 3, grounding switch operation shaft 4, isolating switch operation shaft 5 and main shaft 6;First mounting plate 1, second mounting plate 2 and third mounting plate 3 are installed in sequence and are spaced apart;

[0030] The first mounting plate 1 is rotatably installed with the main shaft disc 9;The both sides of the main shaft disc 9 are equipped with the groove, as Figure 3 As

[0031] The one end of the grounding switch operating shaft 4 and the isolating switch operating shaft 5 is connected to the one end of a transmission member 12 in sequence after passing through the second mounting plate 2 and the first mounting plate 1, and the other end of the transmission member 12 is placed in the groove of the main shaft disc 9 through a roller 121; wherein the third mounting plate 3 is provided with operating holes at positions opposite to the grounding switch operating shaft 4 and the isolating switch operating shaft 5, which are a grounding switch operating hole 301 and an isolating switch operating hole 302 respectively;

[0032] The rotating pressing plate 11 is arranged on the grounding switch operating shaft 4 and the isolating switch operating shaft 5, and the rotating pressing plate 11 on the grounding switch operating shaft 4 is provided with the elastic member 10, such as a closing and opening spring, between the rotating pressing plate 11 on the isolating switch operating shaft 5.

[0033] The main shaft 6 is rotatably arranged on the second mounting plate 2, and is connected with the main shaft disc 9 through the transmission assembly 7 at one end and is connected with the baffle assembly 8 at the other end.

[0034] As shown in Figure 4 The baffle assembly 8 comprises a triangular plate 801 and two baffles 802, one end of the two baffles 802 is rotatably arranged on the third mounting plate 3, the other end of the two baffles 802 is provided with a straight slot, one corner of the triangular plate 801 is fixedly connected with the main shaft 6, and the other two corners of the triangular plate 801 are slidably arranged in the straight slots of the two baffles 802.

[0035] As shown in Figure 2 The transmission assembly 7 comprises a first transmission rod 701, a second transmission rod 702 and a third transmission rod 703; one end of the first transmission rod 701 is connected with the main shaft disc 9, and the other end is connected with the main shaft 6 in sequence through the second transmission rod 702 and the third transmission rod 703; the first transmission rod 701 and the third transmission rod 703 are in straight line shape; and the second transmission rod 702 is in C shape.

[0036] The isolating grounding three-position switch operating mechanism is interlocked; the main shaft disc 9 is rotated to drive the main shaft 6 to rotate through the transmission assembly 7, and the baffle assembly 8 at the tail end of the main shaft 6 forms a structure similar to a seesaw; when the grounding switch operating shaft 4 is rotated clockwise, the main shaft 6 is rotated to the left, one of the baffles 802 is raised to shield the isolating switch operating hole 302; the isolating switch operating shaft 5 is rotated clockwise, the main shaft 6 is rotated to the right, the other baffle 802 is raised to shield the grounding switch operating hole 301, so that the mechanical interlocking of the grounding switch and the isolating switch is realized, and damage to the equipment caused by human error operation is avoided.

[0037] The three-position switch operating mechanism has the advantages of simple structure, stable and reliable operation interlocking, strong mechanical life and the like.

[0038] As shown in Figures 1-5As shown, when the special tool is used to rotate the grounding or isolation operation shaft left and right, the operation shaft rotates, the rotating pressing plate 11 on the operation shaft drives the opening and closing spring to stretch and contract, when the initial closing action is performed, the opening and closing spring is compressed, under the action of human force, when the rotating pressing plate 11 reaches the inflection point state, the opening and closing spring releases energy, thereby driving the transmission member 12 at the tail end of the operation shaft to move in the U-shaped groove of the main shaft disc 9, thereby driving the main shaft disc 9 to rotate, and the closing of the isolation grounding three-position switch is realized.

[0039] The roller 121 arranged on the transmission member 12 can reduce the friction force during movement, so that the mechanism transmission is more labor-saving, the use of a spring with excessive elastic force is avoided, the impact on the mechanism body and the switch body is reduced, and the mechanical life of the operation mechanism can be effectively increased.

[0040] Because of the spring force, after the closing action is completed, the spring force can help the three-position switch to realize state self-locking. When the three-position switch is in the live operation state, because of the existence of electric power, the contact will vibrate slightly, and the operation mechanism of the three-position switch can assist the three-position switch to perform the closing state self-retention, thereby improving the reliability and safety of the three-position switch operation.

[0041] The opening action is also performed by rotating the operation shaft by using a special tool, and compared with the closing action, the opening and closing spring does not have an energy releasing process, human force is used to compress the opening and closing spring, so that the slow opening action is realized. The slow opening action of the operation mechanism can also reduce the impact force on the mechanism body, and the mechanical life of the mechanism body is improved.

[0042] The three-position switch operation mechanism has the advantages of simple structure, low production cost, reliable interlocking, strong stability, high mechanical life and high safety.

[0043] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as limiting the utility model.

[0044] In addition, the terms "first" and "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 indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0045] In the utility model, unless another explicit provision and limitation, the terms "assemble", "connect", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be direct connection, also can indirectly connect through the intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0046] The above is only preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical schemes under the idea of the utility model belong to the protection scope of the utility model for the person skilled in the art. It should be pointed out that for ordinary skilled person in the art, several improvements and refinements without departing from the principle of the utility model premise, should be considered as the protection scope of the utility model.

Claims

1. An operating mechanism for an isolated ground three position switch, characterized by, The utility model relates to a kind of ground switch and disconnecting switch operating shafts, including first mounting plate (1), second mounting plate (2), third mounting plate (3), ground switch operating shaft (4), disconnecting switch operating shaft (5) and main shaft (6);The first mounting plate (1), second mounting plate (2) and third mounting plate (3) are installed in sequence with interval; Main shaft disc (9) is rotatably installed on the first mounting plate (1);The both sides of main shaft disc (9) are equipped with groove; The one end of ground switch operating shaft (4) and disconnecting switch operating shaft (5) is sequentially passed through second mounting plate (2) and first mounting plate (1) and is connected to the one end of a transmission member (12), the other end of transmission member (12) is placed in the groove of main shaft disc (9);The third mounting plate (3) is equipped with operating hole on the position of ground switch operating shaft (4) and disconnecting switch operating shaft (5); Elastic member (10) is equipped between ground switch operating shaft (4) and disconnecting switch operating shaft (5); Main shaft (6) is rotatably installed on the second mounting plate (2), and one end is connected with main shaft disc (9) by transmission assembly (7), and the other end is connected with baffle assembly (8).

2. The isolated ground triple-pole switch operating mechanism of claim 1, wherein, Baffle assembly (8) includes triangular plate (801) and two baffle plates (802), one end of two baffle plates (802) is rotatably installed on third mounting plate (3), the other end of two baffle plates (802) is equipped with straight slot, one corner of triangular plate (801) is connected with main shaft (6), and the other two corners of triangular plate (801) are respectively slid in the straight slot of two baffle plates (802).

3. The isolated ground triple-pole switch operating mechanism of claim 2, wherein, Transmission assembly (7) includes first transmission rod (701), second transmission rod (702) and third transmission rod (703), one end of first transmission rod (701) is connected with main shaft disc (6), and the other end is sequentially connected with main shaft (6) by second transmission rod (702) and third transmission rod (703).

4. The isolated ground triple-pole switch operating mechanism of claim 3, wherein, First transmission rod (701) and third transmission rod (703) are linear, and second transmission rod (702) is C-shaped.

5. The isolated ground triple-pole switch operating mechanism of claim 1 or 2 or 3, wherein, The other end of transmission member (12) is equipped with roller (121), and roller (121) is placed in the groove of main shaft disc (9).

6. The isolated ground triple-pole switch operating mechanism of claim 1 or 2 or 3, wherein, Elastic member (10) is closing and opening spring, and is located between first mounting plate (1) and second mounting plate (2).

7. The isolated ground triple-pole switch operating mechanism of claim 6, wherein, Rotary pressing plate (11) is equipped on ground switch operating shaft (4) and disconnecting switch operating shaft (5), and elastic member (10) is located between rotary pressing plate (11) on ground switch operating shaft (4) and rotary pressing plate (11) on disconnecting switch operating shaft (5).

8. The isolated ground triple-pole switch operating mechanism of claim 1 or 2 or 3, wherein, The groove of main shaft disc (9) is flared.

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