Interlocking device and switch cabinet

Abstract

The utility model belongs to the technical field of electrical switches, and discloses an interlocking device and a switch cabinet. The interlocking device comprises a gear, a connecting rod and a connecting structure, the gear is in transmission connection with a first rotating shaft of the load switch, a first end of the connecting rod is meshed with the gear, and the load switch rotates through the first rotating shaft to open or close; the connecting structure is in transmission connection with the second end of the connecting rod and the grounding switch second rotating shaft. The grounding switch rotates through the second rotating shaft to be switched off or switched on. The first rotating shaft rotates to drive the connecting rod to move through the gear, and the connecting rod moves to drive the second rotating shaft to rotate through the connecting structure. The interlocking device is used for linking the load switch and the grounding switch, when the first rotating shaft of the load switch rotates to switch the opening and closing state, the second rotating shaft of the grounding switch is linked and controlled through the gear, the connecting rod and the connecting structure in sequence, so that the state of the grounding switch is changed, and the operation can be completed only by operating the first rotating shaft to rotate at one time; operation steps are simplified, misoperation can be effectively prevented, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical switch technical field especially, relate to a interlock device and switch cabinet. BACKGROUND

[0002] Load switch is a kind of switch device that can control load in circuit;Ground switch is mainly used for equipment maintenance or maintenance, and it is safe to isolate equipment and power system, to prevent the occurrence of electric shock accident.

[0003] In prior art, as shown in figure, Figure 1 Locking mechanism 200 is arranged between existing load switch 100 and existing ground switch 300, and existing load switch 100 and existing ground switch 300 need to be operated according to specific order, and the operation is cumbersome, and there is a great risk of misoperation.

[0004] Therefore, it is urgent to provide an interlock device and switch cabinet to link load switch and ground switch, simplify operation steps, change the state of ground switch when the state of load switch changes, effectively prevent misoperation and improve work efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an interlock device and switch cabinet to link load switch and ground switch, simplify operation steps, change the state of ground switch when the state of load switch changes, effectively prevent misoperation and improve work efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides an interlock device for being installed between load switch and ground switch, and the interlock device comprises:

[0008] Gear and connecting rod, the gear is used to be connected with the first rotating shaft of load switch, the connecting rod first end is engaged with the gear, and load switch is rotated through the first rotating shaft to open or close;

[0009] Connecting structure, the connecting structure is connected with the second end of connecting rod and the second rotating shaft of ground switch, and ground switch is rotated through the second rotating shaft to open or close;

[0010] The first rotating shaft is rotated through the gear and drives the connecting rod to move, and the connecting rod moves through the connecting structure and drives the second rotating shaft to rotate.

[0011] As an optional technical scheme of interlock device, the connecting structure comprises:

[0012] The fixed support and a rotating disc are arranged on the fixed support, and the second end of the connecting rod is slidably connected with the rotating disc.

[0013] A connecting assembly is arranged to drive the rotating disc and the second rotating shaft.

[0014] The connecting rod moves to drive the rotating disc to rotate, and the rotating disc drives the connecting assembly to rotate the second rotating shaft.

[0015] As an optional technical solution of the interlocking device, the connecting assembly comprises a transmission connecting rod and a connecting sleeve, one end of the transmission connecting rod is hingedly connected with the rotating disc, the other end of the transmission connecting rod is hingedly connected with the connecting sleeve, and the connecting sleeve is fixedly sleeved on the second rotating shaft.

[0016] As an optional technical solution of the interlocking device, the rotating disc is in the shape of a sector, the center of the rotating disc is rotatably connected with the fixed support, and the outer arc of the rotating disc is connected with the connecting rod and the transmission connecting rod at two ends thereof.

[0017] As an optional technical solution of the interlocking device, the connecting structure further comprises a connecting shaft, and the rotating disc and the fixed support are rotatably connected through the connecting shaft.

[0018] As an optional technical solution of the interlocking device, the second end of the connecting rod is hingedly connected with a first connecting piece, the rotating disc is provided with a sliding groove, and the first connecting piece is slidably arranged in the sliding groove.

[0019] As an optional technical solution of the interlocking device, the interlocking device further comprises a support frame, the support frame is arranged to be fixed on the load switch box, and the first end of the connecting rod is slidably arranged on the support frame.

[0020] As an optional technical solution of the interlocking device, the interlocking device further comprises a second connecting piece, and the support frame is detachably arranged on the load switch box through the second connecting piece.

[0021] As an optional technical solution of the interlocking device, the gear is an incomplete gear.

[0022] The utility model provides a switch cabinet, the switch cabinet includes load switch, grounding switch and above interlocking device.

[0023] Beneficial effects:

[0024] The utility model provides a kind of interlocking device, the interlocking device is used to be installed between load switch and grounding switch, interlocking device includes gear, connecting rod and connecting structure, gear is used to be transmission connection with the first rotating shaft of load switch, connecting rod first end is engaged with gear, load switch is rotated by first rotating shaft to open or close;Connecting structure transmission connection connecting rod second end and the second rotating shaft of grounding switch, grounding switch is rotated by second rotating shaft to open or close;First rotating shaft rotates and drives connecting rod to move by gear, and connecting rod moves and drives second rotating shaft to rotate by connecting structure.It is rotated by first rotating shaft of load switch between load switch and grounding switch and is set interlocking device, and load switch state can be changed by grounding switch second rotating shaft rotation changes grounding switch state, utilize interlocking device and link load switch and grounding switch, when load switch first rotating shaft rotation switches open or close state, in turn through gear, connecting rod and connecting structure link control second rotating shaft of grounding switch, so that the state of grounding switch changes, only need to operate first rotating shaft rotation once, it can be completed, simplify operation step, can effectively prevent misoperation and improve work efficiency.

[0025] The utility model provides a kind of switch cabinet, the switch cabinet includes load switch, grounding switch and above-mentioned interlocking device, by setting linkage device, simplify operation step, it is convenient to control. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structural schematic diagram of load switch, grounding switch and interlocking mechanism provided by prior art;

[0027] Figure 2 It is the structural schematic diagram of the open state of interlocking device provided by the utility model embodiment;

[0028] Figure 3 It is the structural schematic diagram of the closed state of interlocking device provided by the utility model embodiment.

[0029] In the drawing:

[0030] 100, existing load switch;200, interlocking mechanism;300, existing grounding switch;

[0031] 11, load switch;111, first rotating shaft;12, grounding switch;

[0032] 21, gear;22, connecting rod;23, connecting structure;231, fixed support;232, rotating disc;233, transmission connecting rod;234, connecting shaft sleeve;235, connecting shaft;

[0033] 30, support frame. DETAILED DESCRIPTION

[0034] The utility model will be described further in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of 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.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0038] As Figure 2 And Figure 3As shown, the embodiment provides an interlocking device for installation between the load switch 11 and the grounding switch 12, which comprises a gear 21, a connecting rod 22 and a connecting structure 23. The gear 21 is used for transmission connection with the first rotating shaft 111 of the load switch 11. The first end of the connecting rod 22 is engaged with the gear 21. The load switch 11 is rotated through the first rotating shaft 111 to open or close. The connecting structure 23 is transmission connected with the second end of the connecting rod 22 and the second rotating shaft of the grounding switch 12. The grounding switch 12 is rotated through the second rotating shaft to open or close. The first rotating shaft 111 is rotated to drive the connecting rod 22 to move through the gear 21. The connecting rod 22 is moved to drive the second rotating shaft to rotate through the connecting structure 23.

[0039] By setting the interlocking device between the load switch 11 and the grounding switch 12, the rotation of the first rotating shaft 111 of the load switch 11 changes the state of the load switch, and the rotation of the second rotating shaft of the grounding switch 12 changes the state of the grounding switch 12. The interlocking device is used to link the load switch 11 and the grounding switch 12. When the first rotating shaft 111 of the load switch 11 is rotated to switch the open or closed state, the second rotating shaft of the grounding switch 12 is linked and controlled through the gear 21, the connecting rod 22 and the connecting structure 23 in sequence, so that the state of the grounding switch 12 is changed. Only one-time operation of the first rotating shaft 111 is required to complete the operation, which simplifies the operation steps, effectively prevents misoperation and improves the work efficiency.

[0040] In the embodiment, the gear 21 is an incomplete gear. By setting the gear 21 as an incomplete gear, i.e. the outer circumferential surface of the gear 21 comprises an arc surface with a tooth shape and a plane without a tooth shape, the rotation angle of the first rotating shaft 111 and the length of the gear 21 engaged with the connecting rod 22 are limited.

[0041] Optionally, the interlocking device further comprises a support frame 30, which is used for fixing on the box body of the load switch 11. The first end of the connecting rod 22 is slidingly arranged on the support frame 30. By setting the support frame 30, the support frame 30 can support the connecting rod 22. When the gear 21 is rotated, the connecting rod 22 is engaged with the gear 21 and slides on the support frame 30. By setting the support frame 30, the position of the connecting rod 22 can be limited to ensure the stability of the interlocking device.

[0042] In the embodiment, the interlocking device further comprises a second connecting piece. The support frame 30 is detachably arranged on the box body of the load switch 11 through the second connecting piece. By setting the second connecting piece, the support frame 30 is detachably arranged on the box body of the load switch 11, which is convenient for adjusting the position of the support frame 30 and replacing and maintaining the support frame 30. In the embodiment, the second connecting piece is a rivet.

[0043] Further, the connecting structure 23 comprises a fixed support 231, a rotating disc 232, and a connecting assembly. The rotating disc 232 is rotationally arranged on the fixed support 231, and the second end of the connecting rod 22 is slidingly connected with the rotating disc 232. The connecting assembly is drivingly connected with the rotating disc 232 and the second rotating shaft. The connecting rod 22 is moved to drive the rotating disc 232 to rotate, and the rotating disc 232 is rotated to drive the connecting assembly to rotate the second rotating shaft. By arranging the fixed support 231 and the rotating disc 232, the movement of the connecting rod 22 can drive the rotating disc 232 to rotate, and the linear movement of the connecting rod 22 can be converted into the rotation of the rotating disc 232, so that the connecting assembly drives the second rotating shaft of the grounding switch 12 to rotate, and the rotating disc 232 realizes linkage operation, and the movement stability of the interlocking device is ensured.

[0044] Optionally, the connecting structure 23 further comprises a connecting shaft 235, and the rotating disc 232 and the fixed support 231 are rotationally connected through the connecting shaft 235. By arranging the connecting shaft 235 on the fixed support 231, it is ensured that the rotating disc 232 can freely rotate clockwise and counterclockwise, and the rotation is continuous and smooth.

[0045] Further, the connecting assembly comprises a transmission connecting rod 233 and a connecting shaft sleeve 234. One end of the transmission connecting rod 233 is hingedly connected with the rotating disc 232, the other end of the transmission connecting rod 233 is hingedly connected with the connecting shaft sleeve 234, and the connecting shaft sleeve 234 is sleeved and fixed on the second rotating shaft. By arranging the transmission connecting rod 233 and the connecting shaft sleeve 234, the rotating disc 232 is rotated to drive the transmission connecting rod 233, and then the connecting shaft sleeve 234 and the second rotating shaft are driven to rotate. The structure is simple, occupies small space, and can realize specific movement conversion in limited space. The connecting shaft sleeve 234 and the second rotating shaft can be connected by a key.

[0046] Optionally, the rotating disc 232 is in the shape of a sector. The center of the rotating disc 232 is rotationally connected with the fixed support 231, and the two ends of the outer arc line of the rotating disc 232 are respectively connected with the connecting rod 22 and the transmission connecting rod 233. By arranging the sector-shaped rotating disc 232 and connecting the connecting rod 22 and the transmission connecting rod 233 at the two ends of the outer arc line of the rotating disc 232, space is saved, transmission is flexible, noise, vibration, and energy loss are reduced, and the stability and precision of transmission are ensured.

[0047] In the embodiment, the rotating disc 232 is in the shape of a plate. The first side of the rotating disc 232 is connected with the second end of the connecting rod 22, and the second side of the rotating disc 232 is hingedly connected with the transmission connecting rod 233. The rotating disc 232 is provided with an opening to reduce the weight. By arranging the connecting rod 22 and the transmission connecting rod 233 on the two sides of the rotating disc 232, the stability of the rotating disc 232 during rotation is ensured, and the stability and reliability of the interlocking device are improved.

[0048] Optionally, the second end of the connecting rod 22 is hingedly connected with a first connecting piece, the rotating disc 232 is provided with a sliding groove, and the first connecting piece is slidingly arranged in the sliding groove. When the gear 21 and the connecting rod 22 are engaged, due to machining errors and installation errors, the connecting rod 22 will move with deviation. By arranging the sliding groove on the rotating disc 232 and using the first connecting piece to rotatably connect the second end of the connecting rod 22 to the rotating disc 232, a certain amount of movement can be provided between the rotating disc 232 and the second end of the connecting rod 22, so as to avoid jamming. In the embodiment, the first connecting piece is a stepped pin.

[0049] In the embodiment, the first rotating shaft 111 and the gear 21 are fixed by a pin; the rotating disc 232 and the transmission connecting rod 233 are connected by a stepped pin, and the transmission connecting rod 233 and the connecting shaft sleeve 234 are also connected by a stepped pin; and the connecting shaft sleeve 234 and the second rotating shaft of the grounding switch 12 are connected by a pin.

[0050] The embodiment also provides a switch cabinet, which comprises the load switch 11, the grounding switch 12 and the interlocking device. By arranging the linkage device, the operation steps are simplified, and the control is facilitated. The load switch 11 can be an SF6 gas package. The specific structures of the load switch 11 and the grounding switch 12 can be arranged according to the prior art, and will not be described herein.

[0051] In the prior art, when closing, the load switch 11 needs to be closed first, and then the grounding switch 12 is closed; when opening, the grounding switch 12 needs to be disconnected first, and then the load switch 11 is operated to reach the opening position, which leads to the complexity of operation and cannot complete the grounding or opening operation at one time. The following is the specific use process of the interlocking device provided in the embodiment, taking the closing process as an example, which specifically comprises:

[0052] When the first rotating shaft 111 of the load switch 11 rotates clockwise, the load switch 11 can complete grounding to closing position, the first rotating shaft 111 rotates to drive the gear 21 to rotate synchronously, the gear 21 meshes with the first end of the connecting rod 22, and drives the connecting rod 22 to move horizontally left relative to the fixed support 231; under the pulling of the connecting rod 22, the rotating disc 232 rotates counterclockwise with the axis of the connecting shaft 235 as the center, and then drives the transmission connecting rod 233 to move upward, and then the transmission connecting rod 233 drives the connecting shaft sleeve 234 to rotate clockwise, the connecting shaft sleeve 234 drives the second rotating shaft of the grounding switch 12 to rotate to make the grounding switch 12 complete closing. It can be understood that the opening operation process is opposite to the closing operation process, that is, when the first rotating shaft 111 of the load switch 11 rotates counterclockwise, the first rotating shaft 111 rotates to drive the gear 21 to rotate synchronously, the gear 21 meshes with the first end of the connecting rod 22, and drives the connecting rod 22 to move horizontally right relative to the fixed support 231, the rotating disc 232 rotates clockwise with the axis of the connecting shaft 235 as the center, and then drives the transmission connecting rod 233 to move downward, and then the transmission connecting rod 233 drives the connecting shaft sleeve 234 and the second rotating shaft to rotate counterclockwise, and completes the opening action.

[0053] Compared with the existing operation process, by setting the interlocking device, the closing or opening action can be realized by one operation, and it is not necessary to operate the load switch 11 and the grounding switch 12 in sequence, which effectively prevents misoperation and improves work efficiency.

[0054] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be carried out without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An interlocking device, characterized in that, The interlocking device, used for installation between the load switch (11) and the grounding switch (12), includes: A gear (21) and a connecting rod (22), wherein the gear (21) is used for transmission connection with the first rotating shaft (111) of the load switch (11), and the first end of the connecting rod (22) meshes with the gear (21), and the load switch (11) rotates through the first rotating shaft (111) to open or close the circuit; The connecting structure (23) drives the second end of the connecting rod (22) and the second rotating shaft of the grounding switch (12). The grounding switch (12) rotates through the second rotating shaft to open or close the circuit. The first rotating shaft (111) rotates and drives the connecting rod (22) to move through the gear (21), and the movement of the connecting rod (22) drives the second rotating shaft to rotate through the connecting structure (23).

2. The interlocking device according to claim 1, characterized in that, The connection structure (23) includes: A fixed bracket (231) and a rotating disk (232) are provided, wherein the rotating disk (232) is rotatably mounted on the fixed bracket (231), and the second end of the connecting rod (22) is slidably connected to the rotating disk (232); A connecting assembly that drivesly connects the rotating disk (232) to the second rotating shaft; The movement of the connecting rod (22) is used to drive the rotating disk (232) to rotate, and the rotation of the rotating disk (232) causes the connecting assembly to drive the second rotating shaft to rotate.

3. The interlocking device according to claim 2, characterized in that, The connecting assembly includes a transmission link (233) and a connecting bushing (234). One end of the transmission link (233) is hinged to the rotating disk (232), and the other end of the transmission link (233) is hinged to the connecting bushing (234). The connecting bushing (234) is sleeved and fixed to the second rotating shaft.

4. The interlocking device according to claim 3, characterized in that, The rotating disk (232) is fan-shaped, and the center of the rotating disk (232) is rotatably connected to the fixed bracket (231). The two ends of the outer arc of the rotating disk (232) are respectively connected to the connecting rod (22) and the transmission connecting rod (233).

5. The interlocking device according to claim 2, characterized in that, The connection structure (23) further includes a connecting shaft (235), through which the rotating disk (232) and the fixed bracket (231) are rotatably connected.

6. The interlocking device according to claim 2, characterized in that, The second end of the connecting rod (22) is hinged to a first connecting member, and the rotating disk (232) is provided with a sliding groove, in which the first connecting member is slidably disposed.

7. The interlocking device according to any one of claims 1-6, characterized in that, The interlocking device also includes a support frame (30), which is used to fix the load switch (11) box, and the first end of the connecting rod (22) is slidably disposed on the support frame (30).

8. The interlocking device according to claim 7, characterized in that, The interlocking device also includes a second connector, and the support frame (30) is detachably mounted on the load switch (11) box via the second connector.

9. The interlocking device according to any one of claims 1-6, characterized in that, The gear (21) is an incomplete gear.

10. A switch cabinet, characterized in that, It includes a load switch (11), a grounding switch (12), and an interlocking device as described in any one of claims 1-9.

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