CN112332286B

CN112332286B - Switch cabinet isolation baffle

Info

Publication number: CN112332286B
Application number: CN202011262368.7A
Authority: CN
Inventors: 刘洋
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2022-05-20
Anticipated expiration: 2040-11-12
Also published as: CN112332286A

Abstract

The utility model discloses a switch cabinet isolation baffle, which comprises a switch cabinet, a transmission assembly and a baffle, wherein the switch cabinet comprises a cabinet door and a bottom plate connected with the cabinet door; the transmission assemblies are symmetrically arranged on two sides of the bottom plate; the baffle comprises a sliding part, a fixed part and an early warning part; when the switch cabinet isolation baffle is used for staff maintenance and test, the baffle tool carried with a person can effectively fix the transmission assembly in the switch cabinet, the staff is prevented from being subjected to high-voltage electric shock due to mistaken touch during maintenance and test, the transmission assembly can be effectively prevented from being suddenly started, high-voltage current is leaked when the switch cabinet is opened, the baffle can be contacted with the transmission rod when the transmission assembly is fixed, when the transmission rod is electrified, an acousto-optic early warning can be sent to inform the staff of keeping away from the baffle, the risk is reduced to the minimum, and the safety of the staff during working is effectively protected.

Description

Switch cabinet isolation baffle

Technical Field

The utility model relates to the technical field of power equipment, in particular to a switch cabinet isolation baffle.

Background

A switch cabinet (switch cabinet) is an electrical device, wherein an external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch circuit is arranged according to the requirement. Such as meters, automatic control, magnetic switches of motors, various alternating current contactors, and the like, some are also provided with high-voltage chambers and low-voltage chamber switch cabinets, and high-voltage buses, such as power plants, and some are also provided with low-frequency load shedding for keeping main equipment.

The main function of the switch gear is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like.

In recent years, casualty accidents of switch cabinets during overhaul and test frequently occur, and accident reasons are analyzed and discovered: after the breaker trolley is pulled out of the cabinet, the static contact at the bus side or the line side is still electrified under many conditions, the isolation baffle is strictly prohibited to be opened at the moment, however, due to the lack of an effective control means, the accidents of the power supply bureau 725 accident and the noble power supply bureau 818 accident are caused by the fact that a plurality of workers open the baffle and the safety distance between the isolation baffle and the static contact is insufficient, and the reason why the isolation baffle is mistakenly opened by electrification is one of the main accidents of the casualties accident caused by the equipment such as the switch cabinet, and a new method or tool is urgently needed to solve the potential safety hazard.

Now provide a switch isolation baffle, overhaul at the staff, when experimental, it can carry out very effective fixed to the drive assembly in the cubical switchboard to hand-carry the baffle instrument, prevent that the staff from overhauing, the mistake is touched and is leaded to receiving the high-voltage electric shock during experiment, also can effectively prevent drive assembly restart suddenly, open the cubical switchboard and spill high-tension current, the baffle can contact with the transfer line when fixed drive assembly, can send out the reputation early warning when the circular telegram on the transfer line and inform the maintainer to keep away from the baffle, fall to minimumly the risk, effectively protect the safety of staff during operation.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the utility model of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the utility model.

The utility model is provided in view of the problems of the prior switch cabinet isolation baffle.

Therefore, the utility model aims to provide a switch cabinet isolation baffle which can effectively fix a transmission assembly in a switch cabinet when a worker overhauls and tests, prevent the worker from being subjected to high-voltage electric shock due to mistaken touch during overhauling and testing, effectively prevent the transmission assembly from being suddenly started, open the switch cabinet to leak high-voltage current, enable the baffle to be in contact with a transmission rod when the transmission assembly is fixed, and send out sound and light early warning to inform the overhauler to get away from the baffle when the transmission rod is electrified, so that the risk is reduced to the minimum, and the safety of the worker during working is effectively protected.

In order to solve the technical problems, the utility model provides the following technical scheme: a switch cabinet isolation baffle comprises a switch cabinet, a transmission assembly and a baffle, wherein the switch cabinet comprises a cabinet door and a bottom plate connected with the cabinet door; the transmission assemblies are symmetrically arranged on two sides of the bottom plate; and the baffle comprises a sliding part, a fixing part and an early warning part.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the bottom plate bilateral symmetry is provided with the wallboard, the wallboard staggers with drive assembly.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the transmission assembly comprises a first transmission rod and a second transmission rod, and a plurality of through holes and holding rods with the same size are formed in the first transmission rod and the second transmission rod.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the baffle is made by insulating material, and still seted up the recess on its lateral wall, the recess is the same with holding rod radial diameter, the holding rod can cooperate and insert in the recess.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the sliding piece comprises a first limiting groove, a second limiting groove, an adjusting rod and an electromagnet, the first limiting groove and the second limiting groove are formed in the side wall of the baffle, the adjusting rod is arranged in the first limiting groove, the electromagnet is arranged in the second limiting groove, and the adjusting rod is fixedly connected with the electromagnet in a corresponding mode.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the electromagnet is provided with a cylindrical protrusion which can be matched with the through hole, and the diameter of the protrusion is equal to that of the through hole.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the fixing part is arranged on the baffle and comprises a fixing plate and a third limiting groove, the fixing plate can be matched with the wall plate to be clamped, a moving rod is arranged on the side wall of the wall plate, the third limiting groove is formed in the side wall of the baffle, and the moving rod is arranged in the third limiting groove.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the early warning piece includes time delay relay, power module, speaker, early warning lamp and contact iron plate, and wherein all units connect into the circuit through the third electric wire series connection third electric wire both ends point department is connected with the contact iron plate, the early warning lamp set up in the baffle top.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the circuit is arranged in the baffle, a partition plate is arranged between the circuit and the electromagnet, a movable cavity is further formed in the baffle, and the position of the movable cavity is matched with that of the electromagnet.

As a preferable scheme of the switch cabinet isolation baffle, the switch cabinet isolation baffle comprises the following components: the movable cavity is internally provided with an iron block, a spring is arranged between the iron block and the inner wall of the movable cavity, the spring is in an initial state, and the iron block can conduct electricity after contacting with the contact iron block.

The utility model has the beneficial effects that:

when the switch cabinet isolation baffle is used for staff maintenance and test, the baffle tool carried with a person can effectively fix the transmission assembly in the switch cabinet, the staff is prevented from being subjected to high-voltage electric shock due to mistaken touch during maintenance and test, the transmission assembly can be effectively prevented from being suddenly started, high-voltage current is leaked when the switch cabinet is opened, the baffle can be contacted with the transmission rod when the transmission assembly is fixed, when the transmission rod is electrified, an acousto-optic early warning can be sent to inform the staff of keeping away from the baffle, the risk is reduced to the minimum, and the safety of the staff during working is effectively protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic view of the overall structure of the isolation baffle of the switch cabinet.

Fig. 2 is a schematic structural diagram of a transmission assembly of the switch cabinet isolation baffle of the utility model.

Fig. 3 is a schematic view of a baffle structure of the switch cabinet isolation baffle of the utility model.

Fig. 4 is a sectional view of the baffle structure of the switch cabinet isolation baffle of the utility model.

Fig. 5 is a schematic circuit structure diagram of the switch cabinet isolation baffle of the utility model.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Example 1

Referring to fig. 1, for the first embodiment of the present invention, there is provided a switchgear cabinet isolation barrier, which includes a switchgear cabinet 100, a transmission assembly 200 and a barrier 300, wherein the switchgear cabinet 100 includes a cabinet door 101, and a bottom plate 102 connected to the cabinet door 101; the transmission assemblies 200 are symmetrically arranged on two sides of the bottom plate 102; and a barrier 300 including a sliding member 301, a fixing member 302, and an early warning member 303.

Wherein, cubical switchboard 100 provides to open and shut, control and protection with electrical apparatus, and the cabinet door on the inside of transmission assembly 200 control cubical switchboard 100 is closed, and baffle 300 blocks with the cooperation of transmission assembly 200, fixes, prevents that the staff from touching by mistake and leading to receiving the high-voltage electric shock when overhauing, experimental, also can effectively prevent the transmission assembly and start suddenly, opens the cubical switchboard and spills high tension current, causes the danger of electrocuteeing. The cabinet door 101 is connected with voltage and current, the bottom plate 102 forms the bottom of the switch cabinet 100, and the transmission assembly 200 controls a current switch on the switch cabinet 100, so that the transmission assembly is in contact with the high-voltage current, and when electricity leaks, the transmission assembly is easy to be contacted by maintenance staff to cause electric shock danger.

Baffle 300 can fix transmission assembly 200 and keep apart, prevents that the staff from causing the electric shock rather than the contact, and slider 301 passes with the through-hole 203 cooperation on the transmission assembly 200, is in the same place baffle 300 and transmission assembly 200 cooperation, fixes first transfer line 201 and second transfer line 202 on the vertical direction, prevents it and reciprocates, and then influences the cabinet door closure on cubical switchboard 100, leads to the danger of electrocuteeing. The fixing member 302 can fix the baffle 300 and the wall plate 102a at both sides of the switch cabinet 100 together, and fix the baffle 300 in the horizontal direction, so as to prevent the sliding member 301 on the baffle 300 from falling off after being connected with the transmission assembly 200. When the baffle 300 and the transmission assembly 200 are fixed together, the early warning piece 303 gives an early warning to electrify the transmission assembly 200, and informs workers of the existence of high-voltage current through acousto-optic alarm to pay attention to the remote.

Example 2

Referring to fig. 1, a second embodiment of the present invention, which is different from the first embodiment, is: the wall plates 102a are symmetrically arranged on both sides of the bottom plate 102, and the wall plates 102a are staggered with the transmission assembly 200. The transmission assembly 200 comprises a first transmission rod 201 and a second transmission rod 202, wherein the first transmission rod 201 and the second transmission rod 202 are provided with a plurality of through holes 203 and holding rods 204 with the same size.

The baffle 300 is made of an insulating material, and a groove 204a is further formed in the side wall of the baffle, the radial diameter of the groove 204a is the same as that of the holding rod 204, and the holding rod 204 can be inserted into the groove 204a in a matching mode.

The sliding member 301 includes a first limiting groove 301a, a second limiting groove 301b, an adjusting rod 301c and an electromagnet 301d, the first limiting groove 301a and the second limiting groove 301b are disposed on the sidewall of the baffle 300, the adjusting rod 301c is disposed in the first limiting groove 301a, the electromagnet 301d is disposed in the second limiting groove 301b, and the adjusting rod 301c and the electromagnet 301d are correspondingly and fixedly connected.

The electromagnet 301d is provided with a cylindrical protrusion 301d-1 which can be matched with the through hole 203, and the diameter of the protrusion 301d-1 is equal to that of the through hole 203.

The fixing member 302 is disposed on the baffle 300, and includes a fixing plate 302a and a third limiting groove 302b, the fixing plate 302a can be engaged with the wall plate 102a and is disposed with a moving rod 302a-1 on a sidewall thereof, the third limiting groove 302b is disposed on a sidewall of the baffle 300, and the moving rod 302a-1 is disposed in the third limiting groove 302 b.

Compared with the embodiment 1, the baffle 300 is further made of an insulating material, so that a worker can be effectively protected from contacting with the transmission assembly, and electric shock is prevented. The baffle 300 is provided with a groove 204a, the groove 204a can be matched with the holding rod 204 on the transmission assembly 200, when the baffle 300 is attached to the transmission assembly 200, the holding rod 204 and the groove 204a can be correspondingly inserted, and at the moment, the first transmission rod 201 and the second transmission rod 202 in the transmission assembly 200 can be preliminarily fixed.

The adjusting rod 301c and the electromagnet 301d are arranged in the first limiting groove 301a and the second limiting groove 301b and can slide up and down in the first limiting groove 301a and the second limiting groove 301b, two electromagnets 301d are arranged and correspond to the first transmission rod 201 and the second transmission rod 202, two protrusions 301d-1 are arranged on each electromagnet 301d, the protrusions 301d-1 correspond to the through holes 203 on the first transmission rod 201 or the second transmission rod 202, the intervals between the two protrusions 301d-1 and the two through holes 203 are the same, the electromagnet 301d is fixedly connected with the adjusting rod 301c, and the position of the electromagnet 301d can be changed by adjusting the position of the adjusting rod 301c by an employee, so that the protrusions 301d-1 can correspond to the through holes 203 on the first transmission rod 201 and the second transmission rod 202, and the baffle 300 can be inserted into the transmission assembly 200 in a matching manner.

The retaining plate 300 is further provided with a fixing member 302, the fixing plate 302a is arranged in the retaining plate 300, the vertical position of the fixing plate 302a can be adjusted by the moving rod 302a-1, after the sliding member 301 is inserted into the transmission assembly 200, the moving rod 302a-1 in the third limiting groove 302b can be adjusted, so that the fixing plate 302a moves downwards to be clamped with the wall plate 102a on the bottom plate 102, and at this time, the retaining plate 300 can be fixed in the horizontal direction.

The rest of the structure is the same as that of embodiment 1.

In the using process, the adjusting rod 301c is moved, the position of the electromagnet 301d is adjusted, the protrusion 301d-1 on the electromagnet 310d is aligned with the through hole 203 on the first transmission rod 201 and the second transmission rod 202, the groove 204a corresponds to the holding rod 204 on the first transmission rod 201 and the second transmission rod 202, then the baffle 300 is inserted, the moving rod 302a-1 is moved downwards, the fixing plate 302a is clamped with the wall plate 102a on the bottom plate 102, at this time, the baffle 300 and the transmission assembly 200 can be fixed together, and the first transmission rod 201 and the second transmission rod 202 are fixed, so that the high-voltage leakage caused by touching or self-starting the first transmission rod 201 and the second transmission rod 202 is prevented, and the danger is caused. The above steps are reversed to remove baffle 300.

Example 3

Referring to fig. 1, a third embodiment of the present invention is different from the second embodiment in that: the early warning part 303 comprises a delay relay 303a, a power supply module 303b, a loudspeaker 303c, an early warning lamp 303d and a contact iron block 303e, wherein all units are connected in series through a third electric wire 303f to form a circuit 304, the contact iron block 303e is connected to two end points of the third electric wire 303f, and the early warning lamp 303d is arranged on the top of the baffle 300.

The circuit 304 is arranged in the baffle 300, a partition plate 304a is arranged between the circuit and the electromagnet 301d, a movable cavity 305 is further formed in the baffle 300, and the position of the movable cavity 305 is matched with that of the electromagnet 301 d.

An iron block 305a is arranged in the movable cavity 305, a spring 305b is arranged between the iron block 305a and the inner wall of the movable cavity 305, the spring 305b is in an initial state, and the iron block 305a can conduct electricity after being contacted with the contact iron block 303 e.

Compared with embodiment 2, further, when the baffle 300 is fixed with the transmission assembly 200, the electromagnet 301d contacts the through hole 203, when high voltage leaks, current is generated and transmitted to the electromagnet 301d, magnetic force is generated after the electromagnet 301d is electrified, the electromagnet 305a in the movable cavity 305 opposite to the partition plate 304a is attracted, the iron block 305a is attracted to the circuit 304 on the partition plate 304a, the iron block 305a is attracted to the partition plate 304a by the magnetic force and is attached to the two contact iron blocks 303e, the circuit 304 is conducted, and after a delay time of several seconds, the delay relay 303a sends out an audible and visual alarm if continuous current still exists, so as to remind a worker that the transmission assembly 200 has an electric leakage phenomenon, and take care of safety.

When the iron block 305a is attracted out, the spring 305b is stretched, if the transmission assembly 200 has no current, the electromagnet loses magnetic force, the spring 305b generates restoring force to pull the iron block 305 back to the movable cavity 305, the circuit 304 cannot form a loop, the sound-light alarm is restored, and the early warning is finished.

The rest of the structure is the same as that of embodiment 2.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the utility model, or those unrelated to enabling the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention. .

Claims

1. The utility model provides a cubical switchboard isolation barrier which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the switch cabinet (100) comprises a cabinet door (101) and a bottom plate (102) connected with the cabinet door (101);

the transmission assemblies (200) are symmetrically arranged on two sides of the bottom plate (102); and the number of the first and second groups,

the baffle (300) comprises a sliding part (301), a fixing part (302) and an early warning part (303);

wall plates (102 a) are symmetrically arranged on two sides of the bottom plate (102), and the wall plates (102 a) are staggered with the transmission assembly (200); the transmission assembly (200) comprises a first transmission rod (201) and a second transmission rod (202), and a plurality of through holes (203) and holding rods (204) with the same size are formed in the first transmission rod (201) and the second transmission rod (202); the baffle (300) is made of insulating materials, a groove (204 a) is formed in the side wall of the baffle, the radial diameter of the groove (204 a) is the same as that of the holding rod (204), and the holding rod (204) can be inserted into the groove (204 a) in a matched mode; the sliding piece (301) comprises a first limiting groove (301 a), a second limiting groove (301 b), an adjusting rod (301 c) and an electromagnet (301 d), the first limiting groove (301 a) and the second limiting groove (301 b) are arranged on the side wall of the baffle (300), the adjusting rod (301 c) is arranged in the first limiting groove (301 a), the electromagnet (301 d) is arranged in the second limiting groove (301 b), and the adjusting rod (301 c) is correspondingly and fixedly connected with the electromagnet (301 d); the electromagnet (301 d) is provided with a cylindrical protrusion (301 d-1) which can be matched with the through hole (203), and the diameter of the protrusion (301 d-1) is equal to that of the through hole (203).

2. The switchgear cabinet isolation barrier of claim 1, wherein: the fixing piece (302) is arranged on the baffle (300) and comprises a fixing plate (302 a) and a third limiting groove (302 b), the fixing plate (302 a) can be clamped with the wall plate (102 a) in a matched mode, a moving rod (302 a-1) is arranged on the side wall of the fixing plate, the third limiting groove (302 b) is arranged on the side wall of the baffle (300), and the moving rod (302 a-1) is arranged in the third limiting groove (302 b).

3. The switchgear cabinet isolation barrier of claim 2, wherein: the early warning piece (303) includes time delay relay (303 a), power module (303 b), speaker (303 c), early warning lamp (303 d) and contact iron plate (303 e), and wherein all units connect into circuit (304) through third electric wire (303 f) series connection, third electric wire (303 f) both ends point department is connected with contact iron plate (303 e), early warning lamp (303 d) set up in baffle (300) top.

4. The switchgear cabinet isolation barrier of claim 3, wherein: the circuit (304) is arranged in the baffle (300), a partition plate (304 a) is arranged between the circuit and the electromagnet (301 d), a movable cavity (305) is further formed in the baffle (300), and the position of the movable cavity (305) is matched with that of the electromagnet (301 d).

5. The switchgear cabinet isolation barrier of claim 4, wherein: be provided with iron plate (305 a) in activity chamber (305), be provided with spring (305 b) between iron plate (305 a) and activity chamber (305) inner wall, spring (305 b) are initial state, can electrically conduct after iron plate (305 a) and contact iron plate (303 e) contact.