Novel disconnecting switch locking structure and closed disconnecting switch

Abstract

The utility model provides a novel disconnecting switch locking structure and a closed disconnecting switch. The novel disconnecting switch locking structure comprises a locking driving shaft, a universal joint rotating shaft, a disconnecting switch locking shaft and a closing locking driving shaft, one end of the locking driving shaft is connected with an external driving device, the other end of the locking driving shaft is connected with one end of the universal joint rotating shaft, the other end of the universal joint rotating shaft is connected with the disconnecting switch locking shaft, and the other end of the disconnecting switch locking shaft is provided with a closing locking driving piece; one end of the switching-on and locking driving shaft is rotatably connected with the switching-on and locking driving piece, and the other end of the switching-on and locking driving shaft is a locking end; the locking structure is simple in structure, the locking driving shaft at the two ends of the locking structure is connected with the locking shaft of the isolating switch through the universal joint rotating shaft, and non-coaxial transmission between the locking driving shaft and the locking shaft of the isolating switch can be realized through the universal joint rotating shaft, so that the locking structure can be applied to a closed isolating switch; and the universal joint rotating shaft is flexibly mounted, so that the processing difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disconnectors, and particularly to a novel disconnector locking structure and an enclosed disconnector. Background Art

[0002] The mechanical locking of a disconnector is generally installed on the main body, and uses the mechanical linkage components of electrical equipment to form a braking relationship of blocking and jamming at specific parts of the mechanical stroke. For example Figure 1 As shown, the action principle of the locking structure of the traditional disconnector is: by rotating the opening / closing indicating shaft 5, driving the locking driving plate 6 to rotate, and then enabling the closing locking shaft 8 to move through the pin shaft 7 to achieve mechanical locking.

[0003] The traditional locking structure is relatively complex and is applied to open-type disconnectors. As Figure 2 、 Figure 3 shown, under the guidance of the closing locking shaft sliding sleeve fixing plate 16, the closing locking shaft 8 limits the rotation shaft 16 of the disconnector. Among them, both the closing locking shaft sliding sleeve fixing plate 16 and the closing locking shaft 8 are exposed outside. Therefore, how to develop a locking device with a simple structure and applicable to enclosed disconnectors is an urgent problem to be solved in this field. Summary of the Utility Model

[0004] Aiming at the defects in the prior art, the purpose of the utility model is to provide a novel disconnector locking structure and an enclosed disconnector.

[0005] According to the novel disconnector locking structure provided by the utility model, it includes a locking drive shaft, a universal joint rotating shaft, a disconnector locking shaft and a closing locking drive shaft;

[0006] One end of the locking drive shaft is connected to an external drive device, the other end of the locking drive shaft is connected to one end of the universal joint rotating shaft, the other end of the universal joint rotating shaft is connected to the disconnector locking shaft, and a closing locking driving member is installed at the other end of the disconnector locking shaft;

[0007] One end of the closing locking drive shaft is rotatably connected to the closing locking driving member, and the other end of the closing locking drive shaft is a locking end;

[0008] The rotating shaft between the closing locking drive shaft and the closing locking driving member is parallel to the axis of the disconnector locking shaft, and the axis of the closing locking drive shaft is perpendicular to the axis of the disconnector locking shaft.

[0009] Preferably, a locking drive plate is vertically installed at one end of the locking drive shaft. One end of the locking drive plate is connected to the locking drive shaft, and a card slot is arranged at the other end of the locking drive plate;

[0010] The external driving device is a closing and opening indication driving shaft. The axis of the closing and opening indication driving shaft is parallel to the axis of the locking driving shaft, and the closing and opening indication driving shaft is engaged in the card slot.

[0011] Preferably, the closing locking driving member is a cam. The disconnecting switch locking shaft is coaxially connected with the cam, and the closing locking driving shaft is rotatably connected with the protruding portion of the cam.

[0012] According to the enclosed disconnecting switch provided by the present utility model, it includes a driving device, a disconnecting switch driving shaft, an enclosed housing, and the novel disconnecting switch locking structure. A protruding structure for abutting against the closing locking driving shaft is arranged outside the disconnecting switch driving shaft;

[0013] The disconnecting switch driving shaft, the disconnecting switch locking shaft, and the closing locking driving shaft are all arranged inside the enclosed housing, and the locking driving shaft is located inside the driving device;

[0014] Locking state: The protruding structure on the outer surface of the disconnecting switch driving shaft abuts against and limits the closing locking driving shaft;

[0015] Non-locking state: The protruding structure on the outer surface of the disconnecting switch driving shaft is separated from the closing locking driving shaft.

[0016] Preferably, the driving device includes an operating mechanism, a driving pull rod, and a closing and opening indication driving shaft that are connected in sequence in a traditional manner. The driving pull rod reciprocates along its own length direction under the drive of the operating mechanism;

[0017] The closing and opening indication driving shaft is fixedly installed on the driving pull rod and is perpendicular to the driving pull rod. The end of the closing and opening indication driving shaft is engaged in the card slot arranged at the end of the locking driving plate.

[0018] Preferably, it further includes an isolating knife handle. The isolating knife handle is arranged inside the enclosed housing and is fixedly connected to the end of the disconnecting switch driving shaft.

[0019] Preferably, it further includes a closing locking driving shaft sliding sleeve fixing plate. The closing locking driving shaft sliding sleeve fixing plate is installed on the inner wall of the enclosed housing;

[0020] The closing locking driving shaft is arranged in the sliding sleeve formed in the middle of the closing locking driving shaft sliding sleeve fixing plate.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] The utility model has a simple structure and is convenient to operate. By connecting the locking drive shafts at both ends of the locking structure to the disconnector locking shaft through a universal joint rotating shaft, different-axis transmission between the locking drive shaft and the disconnector locking shaft can be realized through the universal joint rotating shaft, so that it can be applied to a closed disconnector. Moreover, the universal joint rotating shaft is flexibly installed, reducing the processing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects, and advantages of the present utility model will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 is a schematic diagram of the overall structure of a traditional disconnector locking structure;

[0025] Figure 2 is a schematic diagram of the overall structure of a traditional open disconnector;

[0026] Figure 3 is a schematic diagram of the structure of a traditional open disconnector from a top view angle;

[0027] Figure 4 is a schematic diagram of the overall structure of the locking structure in the present utility model;

[0028] Figure 5 is a schematic diagram of the overall structure of a closed disconnector in the present utility model;

[0029] Figure 6 is a schematic diagram of the structure of a closed disconnector in the present utility model from a bottom view angle;

[0030] Figure 7 is a schematic diagram of the structure of a closed disconnector in the present utility model when in a locked state;

[0031] Figure 8 is a schematic diagram of the structure of a closed disconnector in the present utility model when in a non-locked state.

[0032] The figures show:

[0033] Locking drive shaft 1, disconnector drive shaft 10

[0034] Universal joint rotating shaft 2, closing locking drive shaft sliding sleeve fixing plate 11

[0035] Disconnector locking shaft 3, isolating knife handle 12

[0036] Closing locking drive shaft 4, operating mechanism 13

[0037] Opening / closing indicating shaft 5, driving pull rod 14

[0038] Locking drive plate 6, opening / closing indicating drive shaft 15

[0039] Pin shaft 7 Closing locking shaft sliding sleeve fixing plate 16

[0040] Closing locking shaft 8 Disconnector rotating shaft 17

[0041] New type of disconnector locking structure 9 Specific implementation manner

[0042] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0043] The present utility model discloses a new type of disconnector locking structure and a closed disconnector. By setting a universal joint rotating shaft, coaxial transmission between the locking drive shaft and the disconnector locking shaft is realized, and it can be applied to a closed disconnector. Moreover, the universal joint rotating shaft is flexibly installed, reducing the processing difficulty.

[0044] According to the new type of disconnector locking structure provided by the present utility model, as Figure 4 shown, it includes a locking drive shaft 1, a universal joint rotating shaft 2, a disconnector locking shaft 3, and a closing locking drive shaft 4; one end of the locking drive shaft 1 is connected to an external drive device, the other end of the locking drive shaft 1 is connected to one end of the universal joint rotating shaft 2, the other end of the universal joint rotating shaft 2 is connected to the disconnector locking shaft 3, and a closing locking drive member is installed at the other end of the disconnector locking shaft 3; one end of the closing locking drive shaft 4 is rotatably connected to the closing locking drive member, and the other end of the closing locking drive shaft 4 is a locking end; the rotating shaft between the closing locking drive shaft 4 and the closing locking drive member is parallel to the axis of the disconnector locking shaft 3, and the axis of the closing locking drive shaft 4 is perpendicular to the axis of the disconnector locking shaft 3.

[0045] In a preferred example, a locking drive plate is vertically installed at one end of the locking drive shaft 1. One end of the locking drive plate is connected to the locking drive shaft 1, and a card slot is provided at the other end of the locking drive plate; the external drive device is a closing and opening indication drive shaft 15, the axis of the closing and opening indication drive shaft 15 is parallel to the axis of the locking drive shaft 1, and the closing and opening indication drive shaft 15 is engaged in the card slot. The closing locking drive member is a cam, the disconnector locking shaft 3 is coaxially connected to the cam, and the closing locking drive shaft 4 is rotatably connected to the protruding part of the cam.

[0046] As Figure 7 、 8As shown in the figure, the operating principle of the novel disconnector interlock structure 9 is as follows: The opening / closing indication drive shaft 15 drives the locking drive plate to rotate through translation, thereby driving the locking drive shaft 1 to rotate. The locking drive shaft 1 drives the disconnector interlock shaft 3 to rotate through the universal joint rotating shaft 2. The disconnector interlock shaft 3 drives the cam to rotate. Under the guiding action of the external sliding sleeve, the closing locking drive shaft 4 realizes reciprocating sliding along its own length direction through the rotation of the cam, thereby realizing the switching between the locked and unlocked states.

[0047] According to the enclosed disconnector provided by the present invention, as Figure 5 、 6 shown, it includes a driving device, a disconnector drive shaft 10, an enclosed housing, and the novel disconnector interlock structure 9. A convex structure for abutting against the closing locking drive shaft 4 is provided on the outside of the disconnector drive shaft 10;

[0048] The disconnector drive shaft 10, the disconnector interlock shaft 3, and the closing locking drive shaft 4 are all arranged inside the enclosed housing, and the locking drive shaft 1 is located inside the driving device; the universal joint rotating shaft 2 is exposed to the outside, and the transmission between the driving device and the internal components of the enclosed housing can be realized through the universal joint rotating shaft 2. Therefore, the novel disconnector interlock structure 9 can be applied to the enclosed disconnector;

[0049] The enclosed disconnector includes a locked state and an unlocked state. As Figure 7 shown, when in the locked state, the driving device drives the closing locking drive shaft 4 to move towards the convex structure on the outer surface of the disconnector drive shaft 10 in sequence until, in the projection in the radial direction of the disconnector drive shaft 10, the convex structure coincides with the closing locking drive shaft 4, so that the convex structure on the outer surface of the disconnector drive shaft 10 abuts and limits the position through the closing locking drive shaft 4, making the disconnector drive shaft 10 unable to rotate in the closing or opening direction, realizing mechanical locking.

[0050] As Figure 8 shown, when in the unlocked state, the driving device drives the closing locking drive shaft 4 to move away from the convex structure on the outer surface of the disconnector drive shaft 10 in sequence until, in the projection in the radial direction of the disconnector drive shaft 10, there is no overlapping part between the convex structure and the closing locking drive shaft 4, and the convex structure on the outer surface of the disconnector drive shaft 10 is separated from the closing locking drive shaft 4, so that the disconnector drive shaft 10 can rotate freely, realizing unlocking.

[0051] In a preferred example, the driving device includes an operating mechanism 13, a driving pull rod 14, and a closing and opening indication driving shaft 15 that are connected in sequence in a conventional manner. The driving pull rod 14 reciprocates along its own length direction under the drive of the operating mechanism 13. The closing and opening indication driving shaft 15 is fixedly installed on the driving pull rod 14 and is perpendicular to the driving pull rod 14. The end of the closing and opening indication driving shaft 15 is engaged in a card slot provided at the end of the closing lock driving plate.

[0052] In a preferred example, the enclosed disconnecting switch further includes a disconnecting knife handle 12. The disconnecting knife handle 12 is arranged inside the enclosed housing and is fixedly connected to the end of the disconnecting switch driving shaft 10. The enclosed disconnecting switch further includes a closing lock driving shaft sliding sleeve fixing plate 11. The closing lock driving shaft sliding sleeve fixing plate 11 is installed on the inner wall of the enclosed housing. The closing lock driving shaft 4 is arranged in a sliding sleeve formed in the middle of the closing lock driving shaft sliding sleeve fixing plate 11.

[0053] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0054] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A new type of isolation switch locking structure, characterized in that: It comprises a locking drive shaft (1), a universal joint rotating shaft (2), an isolating switch locking shaft (3) and a closing locking drive shaft (4); One end of the locking drive shaft (1) is connected to an external driving device, the other end of the locking drive shaft (1) is connected to one end of a universal joint rotating shaft (2), the other end of the universal joint rotating shaft (2) is connected to an isolating switch locking shaft (3), and the other end of the isolating switch locking shaft (3) is equipped with a closing locking drive member; One end of the closing and locking drive shaft (4) is rotatably connected to the closing and locking drive member, and the other end of the closing and locking drive shaft (4) is a locking end; The rotating shaft between the closing and locking drive shaft (4) and the closing and locking drive member is parallel to the axis of the isolating switch locking shaft (3), and the axis of the closing and locking drive shaft (4) is perpendicular to the axis of the isolating switch locking shaft (3).

2. The novel isolation switch locking structure according to claim 1 is characterized in that: A locking drive plate is vertically mounted on one end of the locking drive shaft (1), one end of the locking drive plate is connected to the locking drive shaft (1), and the other end of the locking drive plate is provided with a card slot; The external drive device is a separation and combination indicating drive shaft (15), the axis of the separation and combination indicating drive shaft (15) is parallel to the axis of the locking drive shaft (1), and the separation and combination indicating drive shaft (15) is engaged in the engaging groove.

3. The novel isolation switch locking structure according to claim 1 is characterized in that: The closing and locking driving member is a cam, the isolating switch locking shaft (3) is coaxially connected to the cam, and the closing and locking driving shaft (4) is rotatably connected to the protruding portion of the cam.

4. A closed isolating switch, characterized in that: It comprises a driving device, an isolating switch driving shaft (10), a closed housing and a novel isolating switch locking structure (9) as claimed in any one of claims 1 to 3, wherein the isolating switch driving shaft (10) is provided with a protruding structure on the outside thereof for abutting against the closing locking driving shaft (4); The isolating switch drive shaft (10), the isolating switch locking shaft (3) and the closing locking drive shaft (4) are all arranged inside the closed housing, and the locking drive shaft (1) is located inside the driving device; Locking state: the protruding structure on the outer surface of the isolating switch drive shaft (10) abuts against the closing and locking drive shaft (4) to limit the position; Non-locked state: the protruding structure on the outer surface of the isolating switch drive shaft (10) is separated from the closing lock drive shaft (4).

5. The enclosed isolating switch according to claim 4, characterized in that: The driving device comprises an operating mechanism (13), a driving rod (14) and an opening / closing indicating driving shaft (15) which are conventionally connected in sequence, and the driving rod (14) reciprocates along its own length direction under the drive of the operating mechanism (13); The separation and combination indicating driving shaft (15) is fixedly mounted on the driving pull rod (14) and is arranged perpendicular to the driving pull rod (14). The end of the separation and combination indicating driving shaft (15) is engaged in a slot arranged at the end of the locking driving plate.

6. The enclosed isolating switch according to claim 4, characterized in that: It also comprises an isolating knife handle (12), which is arranged inside the closed housing and fixedly connected to the end of the isolating switch drive shaft (10).

7. The enclosed isolating switch according to claim 4, characterized in that: It also comprises a closing and locking drive shaft sliding sleeve fixing plate (11), wherein the closing and locking drive shaft sliding sleeve fixing plate (11) is mounted on the inner wall of the closed housing; The closing and locking drive shaft (4) is arranged in a sliding sleeve provided in the middle of the closing and locking drive shaft sliding sleeve fixing plate (11).

Images