CN220420466U

CN220420466U - Interlocking device

Info

Publication number: CN220420466U
Application number: CN202323537578.4U
Authority: CN
Inventors: 殷玉伟
Original assignee: Shandong Chunxu Electrical Co ltd
Current assignee: Shandong Chunxu Electrical Co ltd
Priority date: 2023-12-25
Filing date: 2023-12-25
Publication date: 2024-01-30
Anticipated expiration: 2033-12-25

Abstract

The utility model relates to the field of switch cabinets and discloses an interlocking device which comprises a grounding interlocking operation shaft, a bevel gear transmission assembly and a limiting mechanism; the bevel gear transmission assembly comprises a large bevel gear and two small bevel gears, the large bevel gear is connected with the grounding switch operation shaft, and one small bevel gear is fixedly connected with the other end of the grounding interlocking operation shaft; the limiting mechanism comprises a flat rod and a limiting assembly, the flat rod is connected with the limiting assembly, and the limiting assembly is connected with the other small bevel gear. When the grounding interlocking operation shaft is used, the large conical gear is driven to rotate, and then the large conical gear drives the grounding switch operation shaft to rotate, so that the opening and closing of the grounding switch are realized, and the rotation angle can be increased due to the reduction ratio between the large conical gear and the small conical gear, so that the opening and closing operation of the grounding switch is more labor-saving and convenient; the large bevel gear drives the limiting component to act through the small bevel gear so as to limit and release the flat rod, so that the rear door can not be opened when the cabinet body is electrified, and the operation safety coefficient is improved.

Description

Interlocking device

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to an interlocking device.

Background

In the prior art, when the grounding switch is switched on and off, the spring compression force and the cutter head clamping force of the grounding switch need to be overcome. At present, most switch cabinets utilize a grounding crank of a grounding interlocking operation mechanism to drive a grounding switch operation shaft to rotate so as to realize switching on and off of the grounding switch. However, when the grounding crank drives the grounding switch operating shaft to rotate, a large operating torque is required, so that the operation is laborious and inconvenient.

Aiming at the technical problems, the technical personnel in the art need to design an interlocking device which can conveniently and laborsaving perform the opening and closing operation of the grounding switch.

Disclosure of Invention

Aiming at the defects, the technical problems to be solved by the utility model are as follows: the interlocking device is labor-saving and convenient to operate when the grounding switch is switched on and off, and meanwhile, the operation safety of the switch cabinet is improved.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

an interlocking device comprises a grounding interlocking operation shaft, wherein one end of the grounding interlocking operation shaft is in transmission connection with a front door interlocking accessory of a switch cabinet, and the device also comprises a bevel gear transmission assembly and a limiting mechanism; the bevel gear transmission assembly comprises a large bevel gear and two small bevel gears which are respectively meshed with the large bevel gear, the two small bevel gears are oppositely arranged, the large bevel gear is connected with a grounding switch operation shaft, and one small bevel gear is fixedly connected with the other end of the grounding interlocking operation shaft; the limiting mechanism comprises a flat rod and a limiting assembly, one end of the flat rod is connected with a rear door interlocking mechanism of the switch cabinet, the other end of the flat rod is connected with the limiting assembly, the limiting assembly is connected with the other small bevel gear, and the limiting assembly is used for limiting the movement of the flat rod; and the grounding interlocking operation shaft rotates to drive the bevel gear transmission assembly to rotate so as to switch on and switch off the grounding switch.

The preferred mode is that the limiting component comprises a limiting shaft, a clamping structure, a clamping matching structure and an elastic resetting piece; one end of the limiting shaft is fixedly connected with the other small bevel gear, the other end of the limiting shaft is fixedly connected with the clamping structure, the clamping matching structure is fixedly connected with the other end of the flat rod, the clamping matching structure is matched with the clamping structure to limit the flat rod, one end of the elastic resetting piece is connected with the flat rod, the other end of the elastic resetting piece is fixedly arranged, and the telescopic direction of the elastic resetting piece is the moving direction of the flat rod.

Preferably, the limiting mechanism further comprises a guide assembly, the guide assembly comprises a fixed plate and a guide sliding plate which are fixed on the side plate of the switch cabinet, the upper end and the lower end of the fixed plate are respectively provided with a bend, the bending device is characterized in that a guide groove is formed in the bending device, the guide sliding plate is arranged in the guide groove, and the extending direction of the guide groove is the moving direction of the flat rod; and one end of the flat rod, which is close to the grounding interlocking operation shaft, and the clamping and matching structure are respectively fixed on the guide sliding plate.

The preferred mode is, the block cooperation structure is first stop collar, the block structure is the second stop collar, first stop collar or be provided with the fixture block on the second stop collar, the second stop collar or be provided with the draw-in groove on the first stop collar, the draw-in groove with the fixture block mutual block.

Preferably, the second limiting sleeve is fixed on the limiting shaft through a pin shaft.

Preferably, the bevel gear transmission assembly further comprises a mounting seat, the large bevel gear is fixed on the mounting seat, and the mounting seat is used for being mounted on a side plate of the switch cabinet.

The rear door interlocking mechanism comprises a support fixed on a side plate of the switch cabinet, a sliding plate horizontally and slidably arranged on the support and a return spring, one end of the return spring is connected with one end of the sliding plate, which is close to the flat rod, and the other end of the return spring is connected with the support; one end of the flat rod, which is away from the grounding interlocking operation shaft, is fixed on the sliding plate; the return spring serves as the elastic return member.

After the technical scheme is adopted, the utility model has the beneficial effects that:

because the interlocking device comprises the grounding interlocking operation shaft, the bevel gear transmission assembly and the limiting mechanism, one end of the grounding interlocking operation shaft is in transmission connection with the front door interlocking accessory of the switch cabinet; the bevel gear transmission assembly comprises a large bevel gear and two small bevel gears which are respectively meshed with the large bevel gear, the two small bevel gears are oppositely arranged, the large bevel gear is connected with the grounding switch operation shaft, and one small bevel gear is fixedly connected with the other end of the grounding interlocking operation shaft; the limiting mechanism comprises a flat rod and a limiting assembly, one end of the flat rod is connected with a rear door interlocking mechanism of the switch cabinet, the other end of the flat rod is connected with the limiting assembly, the limiting assembly is connected with the other small bevel gear, and the limiting assembly is used for limiting the movement of the flat rod; the grounding interlocking operation shaft rotates to drive the bevel gear transmission assembly to rotate so as to switch on and switch off the grounding switch. When the grounding interlocking operation shaft is actually used, the grounding interlocking operation shaft rotates to drive the small bevel gear to rotate, the small bevel gear drives the large bevel gear to rotate, and the large bevel gear drives the grounding switch operation shaft to rotate, so that the opening and closing of the grounding switch are realized, and the rotation angle can be increased due to the reduction ratio between the large bevel gear and the small bevel gear, so that the opening and closing operation of the grounding switch is more labor-saving and convenient; the large bevel gear also drives another small bevel gear to rotate when rotating, and the small bevel gear drives the limiting component to act so as to limit and release the flat rod, so that the rear door can not be opened when the switch cabinet is electrified, and the operation safety coefficient of the switch cabinet is improved.

Drawings

FIG. 1 is a schematic view of an interlock device according to the present utility model in a use state;

FIG. 2 is a schematic diagram of the structure of the interlock device and the grounding switch of the present utility model;

FIG. 3 is a schematic view of an interlock device according to the present utility model;

FIG. 4 is a schematic view of an alternative angle of the interlock device of the present utility model;

FIG. 5 is a schematic view of the structure of the time limiting mechanism and bevel gear drive assembly in the rear door open condition;

FIG. 6 is a schematic view of the structure of the rear door lock state limiting mechanism and bevel gear drive assembly;

FIG. 7 is a schematic diagram of a split construction of a stop mechanism and bevel gear drive assembly;

FIG. 8 is a schematic view of a partial construction of a first stop collar, guide slide and flat bar of the present utility model;

in the figure: the device comprises a 1-grounding interlocking operation shaft, a 2-front door interlocking accessory, a 3-rear door interlocking mechanism, a 30-sliding plate, a 31-return spring, a 32-support, a 4-limiting mechanism, a 40-guiding assembly, a 400-fixing plate, a 401-guiding groove, a 402-guiding sliding plate, a 41-limiting assembly, a 410-limiting shaft, a 411-first limiting sleeve, a 4110-clamping block, a 412-second limiting sleeve, a 4120-clamping groove, a 44-flat bar, a 5-bevel gear transmission assembly, a 50-large bevel gear, a 51-small bevel gear, a 52-mounting seat, a 6-grounding switch and a 60-grounding switch operation shaft.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

As shown in fig. 1, 2, 3 and 4, the interlocking device comprises a grounding interlocking operation shaft 1, a bevel gear transmission assembly 5 and a limiting mechanism 4, wherein one end of the grounding interlocking operation shaft 1 is in transmission connection with a front door interlocking accessory 2 of a switch cabinet.

As shown in fig. 1 to 7 together, the bevel gear transmission assembly 5 includes a large bevel gear 50 and two small bevel gears 51 respectively engaged with the large bevel gear 50, and the two small bevel gears 51 are disposed opposite to each other, wherein the large bevel gear 50 is connected to a ground switch operating shaft 60, and specifically, referring to fig. 2, the large bevel gear 50 is disposed coaxially with the ground switch operating shaft 60; one of the pinion gears 51 is fixedly connected to the other end of the ground interlocking operation shaft 1, and specifically referring to fig. 3, the pinion gear 51 is coaxially disposed with the ground interlocking operation shaft 1; the bevel gear transmission assembly 5 in this embodiment further includes a mounting base 52, the large bevel gear 50 is fixed on the mounting base 52, and the mounting base 52 is used for being mounted on a side plate of the switch cabinet.

As shown in fig. 2 to 8 together, the limiting mechanism 4 comprises a flat rod 44 and a limiting component 41, one end of the flat rod 44 is connected with the rear door interlocking mechanism 3 of the switch cabinet, the other end of the flat rod 44 is connected with the limiting component 41, the limiting component 41 is connected with another small bevel gear 51, and the limiting component 41 is used for limiting the movement of the flat rod 44; the grounding interlocking operation shaft 1 rotates to drive the small bevel gear 51 to rotate and drive the limiting component 41 to act to limit or release the flat rod 44, and when the switch cabinet is electrified, the rear door cannot be opened, so that the operation safety is ensured.

Specifically, the limiting component 41 includes a limiting shaft 410, a clamping structure, a clamping matching structure and an elastic reset piece, wherein one end of the limiting shaft 410 is connected with another small bevel gear 51, see fig. 5, one end of the limiting shaft 410 is coaxially arranged with another small bevel gear 51, the other end of the limiting shaft 410 is connected with the clamping structure, one end of a flat rod 44 is connected with a rear door interlocking mechanism 3 of the switch cabinet, the other end of the flat rod 44 is connected with the clamping matching structure, the clamping matching structure is matched with the flat rod 44 through the clamping matching structure, one end of the elastic reset piece is connected with the flat rod 44, the other end of the elastic reset piece is fixedly arranged, the extending direction of the elastic reset piece is the moving direction of the flat rod 44, and the elastic reset piece elastically resets and can pull the flat rod 44 to move and reset.

It should be noted in particular that: as shown in fig. 2, 3 and 4, the rear door interlocking mechanism 3 comprises a support 32 fixed on a side plate of the switch cabinet, a sliding plate 30 horizontally and slidably arranged on the support 32, and a return spring 31, wherein one end of the return spring 31 is connected with one end of the sliding plate 30 close to a flat bar 44, and the other end of the return spring 31 is connected with the support 32; one end of the flat bar 44 facing away from the ground interlock operation shaft 1 is fixed to the slide plate 30; the return spring 31 serves as an elastic return member, so that the structure is optimized, and the cost is reduced. When the flat bar 44 is released by the limiting component 41, the return spring 31 elastically returns, and pulls the flat bar 44 to move back to the door side for return.

As shown in fig. 5, 6, 7 and 8, the engaging structure of the present utility model may be a first stop collar 411, the engaging structure may be a second stop collar 412, a clamping block 4110 is disposed on the first stop collar 411 or the second stop collar 412, and a clamping groove 4120 is disposed on the second stop collar 412 or the first stop collar 411, where the clamping groove 4120 and the clamping block 4110 are engaged with each other. In this embodiment, a clamping block 4110 is disposed on the first limiting sleeve 411, a clamping groove 4120 is disposed on the second limiting sleeve 412, and the second limiting sleeve 412 is fixed on the limiting shaft 410 through a pin, and the limiting shaft 410 passes through the first limiting sleeve 411.

As shown in fig. 3, 4, 5, 6 and 8, in this embodiment, the limiting mechanism 4 further includes a guide assembly 40, where the guide assembly 40 includes a fixing plate 400 fixed on a side plate of the switch cabinet and a guide sliding plate 402, two ends of the fixing plate 400 are respectively provided with a bend, a guide groove 401 is provided on the bend, the guide sliding plate 402 is provided in the guide groove 401, and an extending direction of the guide groove 401 is a moving direction of the flat bar 44; one end of the flat bar 44 near the ground interlock operation shaft 1 and the snap-fit structure are fixed to the guide sled 402, respectively. The flat bar 44 is reliably moved back and forth by the guide assembly 40, improving operational reliability.

As shown in fig. 1 to 8, in actual use, when the grounding switch 6 is in the closed position, the rear door is closed, the rear door drives the flat bar 44 to move toward the front door side through the sliding plate 30 of the rear door interlocking mechanism 3, and when the flat bar 44 moves, the guiding sliding plate 402 and the first limiting sleeve 411 are driven to move toward the front door side, so that the clamping block 4110 is separated from the clamping groove 4120. At this time, the grounding interlocking operation shaft 1 is operated from the front part of the switch cabinet to rotate, the rotation of the grounding interlocking operation shaft 1 drives the large bevel gear 50 fixed on the side plate to rotate, and the large bevel gear 50 drives the grounding switch operation shaft 60 to rotate, so that the opening of the grounding switch 6 is realized.

The large bevel gear 50 drives the small bevel gear 51 to rotate at the same time, the small bevel gear 51 drives the limiting shaft 410 to rotate, at the moment, the second limiting sleeve 412 rotates along with the limiting shaft 410, so that the clamping groove 4120 and the clamping block 4110 are dislocated, the first limiting sleeve 411 cannot move backwards, the limitation of the flat rod 44 is realized, the flat rod 44 pulls the rear door interlocking mechanism 3 to lock the rear door, at the moment, the grounding switch 6 is in a split position, and the rear door cannot be opened when the switch cabinet is electrified.

When the power-off maintenance is performed, the grounding switch 6 is closed, and the grounding interlocking operation shaft 1 is rotated clockwise to drive the bevel gear transmission assembly 5, the limiting shaft 410 and the second limiting sleeve 412 to rotate. The ground interlocking operation shaft 1 rotates 180 degrees, the second stop collar 412 rotates 90 degrees, the clamping groove 4120 aligns with the clamping block 4110 at this time, the first stop collar 411 moves to the rear door side by the tension of the return spring 31 of the rear door interlocking mechanism 3, the clamping block 4110 is inserted into the clamping groove 4120, the flat bar 44 is released, the flat bar 44 also moves backwards along with the clamping groove, the rear door interlocking mechanism 3 unlocks the rear door, and at this time the rear door can be opened.

During which the guide slide 402 moves back and forth in the guide slot 401 to act as a guide, preventing the first stop collar 411 from rotating on the stop shaft 410.

The above description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the utility model, and any modifications, equivalent arrangements of the interlocking devices, etc. which fall within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. An interlocking device comprises a grounding interlocking operation shaft, wherein one end of the grounding interlocking operation shaft is in transmission connection with a front door interlocking accessory of a switch cabinet, and the interlocking device is characterized by further comprising a bevel gear transmission assembly and a limiting mechanism; the bevel gear transmission assembly comprises a large bevel gear and two small bevel gears which are respectively meshed with the large bevel gear, the two small bevel gears are oppositely arranged, the large bevel gear is connected with a grounding switch operation shaft, and one small bevel gear is fixedly connected with the other end of the grounding interlocking operation shaft;

the limiting mechanism comprises a flat rod and a limiting assembly, one end of the flat rod is connected with a rear door interlocking mechanism of the switch cabinet, the other end of the flat rod is connected with the limiting assembly, the limiting assembly is connected with the other small bevel gear, and the limiting assembly is used for limiting the movement of the flat rod;

and the grounding interlocking operation shaft rotates to drive the bevel gear transmission assembly to rotate so as to switch on and switch off the grounding switch.

2. The interlock of claim 1 wherein the limit assembly comprises a limit shaft, a snap-fit structure, and an elastic return;

one end of the limiting shaft is fixedly connected with the other small bevel gear, the other end of the limiting shaft is fixedly connected with the clamping structure,

the clamping and matching structure is fixedly connected with the other end of the flat rod, the clamping and matching structure is matched with the clamping and matching structure to limit the flat rod,

one end of the elastic resetting piece is connected with the flat bar, the other end of the elastic resetting piece is fixedly arranged, and the stretching direction of the elastic resetting piece is the moving direction of the flat bar.

3. The interlocking device according to claim 2, wherein the limiting mechanism further comprises a guide assembly, the guide assembly comprises a fixed plate and a guide sliding plate which are fixed on a side plate of the switch cabinet, bends are respectively arranged at the upper end and the lower end of the fixed plate, guide grooves are formed in the bends, the guide sliding plate is arranged in the guide grooves, and the extending direction of the guide grooves is the moving direction of the flat rod;

and one end of the flat rod, which is close to the grounding interlocking operation shaft, and the clamping and matching structure are respectively fixed on the guide sliding plate.

4. The interlocking device according to claim 2, wherein the clamping and matching structure is a first limit sleeve, the clamping structure is a second limit sleeve, a clamping block is arranged on the first limit sleeve or the second limit sleeve, a clamping groove is arranged on the second limit sleeve or the first limit sleeve, and the clamping groove and the clamping block are mutually clamped.

5. The interlock of claim 4 wherein said second stop collar is secured to said stop shaft by a pin.

6. The interlock of claim 1 wherein the bevel gear assembly further comprises a mount to which the large bevel gear is secured, the mount for mounting to a side panel of a switchgear.

7. The interlocking device according to claim 2, wherein the rear door interlocking mechanism comprises a support fixed on a side plate of the switch cabinet, a sliding plate horizontally and slidably mounted on the support, and a return spring, one end of the return spring is connected with one end of the sliding plate, which is close to the flat bar, and the other end of the return spring is connected with the support;

one end of the flat rod, which is away from the grounding interlocking operation shaft, is fixed on the sliding plate;

the return spring serves as the elastic return member.