CN215816661U

CN215816661U - Interlocking structure

Info

Publication number: CN215816661U
Application number: CN202121731863.8U
Authority: CN
Inventors: 过福兴; 张家利; 盛继光
Original assignee: Hangzhou Join Electric Technology Co ltd
Current assignee: Hangzhou Join Electric Technology Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-11
Anticipated expiration: 2031-07-28

Abstract

The utility model provides an interlocking structure used in power equipment, which comprises a base provided with a plugging part, at least two plug connectors capable of being plugged on the base and at least one elastic clamping mechanism arranged on the base, wherein the elastic clamping mechanism limits the plug connectors to be pulled out when only one plug connector is plugged on the base, and relieves the limitation when two plug connectors are simultaneously plugged on the base. The interlocking structure can prevent risks such as open circuit of a secondary coil of a current transformer, open circuit of a voltage loop, loss of electric energy metering and the like caused by the fact that the plug connectors are pulled out simultaneously.

Description

Interlocking structure

Technical Field

The utility model relates to the technical field of power equipment, in particular to an interlocking structure for power equipment.

Background

At present, an intelligent electric energy meter has a certain verification period and a certain failure rate, and when electric energy is expressed to the verification time or has a defect, a power supply enterprise needs to replace the electric energy meter. In order to provide a good quality power supply service for customers, the intelligent electric energy meter is replaced under the condition of power supply. The problem that from this brings is that during the electric energy meter is changed, if pull out old table meter plug under the state of not installing new table meter, metering device is in the unmeasured state this moment, causes the electric energy measurement blind area, can lead to the electric energy measurement loss.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides an interlocking structure for use in an electric power device to prevent simultaneous extraction of plug-in units. The following technical scheme is adopted:

the utility model provides an interlocking structure, is including the base that disposes grafting portion, two at least plug connectors of pegging graft on the base to and set up at least one elasticity clamping mechanism on the base, elasticity clamping mechanism restricts this plug connector to extract when only a plug connector is pegged graft on the base, and removes this restriction when two plug connectors are pegged graft on the base simultaneously.

Furthermore, the elastic clamping mechanism is arranged between the two plug connectors and comprises a first clamping piece and a second clamping piece which are movably arranged on the base and are respectively provided with an elastic element, and clamping parts are respectively arranged on the plug connectors; when only first plug connector/second plug connector are plugged, first joint spare/second joint spare and the joint portion joint of first plug connector/second plug connector under the elastic element effect, and when second plug connector/first plug connector are inserted, promote first joint spare/second joint spare overcomes elastic element's elasticity and produces the displacement, makes first joint spare/second joint spare break away from with the joint portion of first plug connector/second plug connector.

Furthermore, the clamping part is a clamping groove arranged on the plug connector, one end of the first clamping piece and one end of the second clamping piece are provided with clamping heads matched with the clamping groove, and the other end of the first clamping piece and the second clamping piece are provided with inclined stress surfaces; when the first plug connector or the second plug connector is inserted, at least one part of the first plug connector or the second plug connector is in contact with the stress surface and pushes the second clamping piece or the first clamping piece to overcome the elasticity of the elastic element to displace.

Furthermore, first joint spare and second joint spare are the U type, joint head and stress surface set up respectively in two free ends departments of this U type structure.

Furthermore, first joint spare and second joint spare are installed side by side, and the installation opposite direction.

Furthermore, the elastic element is a spring, and the springs on the two clamping pieces are respectively used for providing elastic force in opposite directions.

Further, be equipped with spring mounting portion on first joint spare and the second joint spare, the spring housing is located on this spring mounting portion, and the other end and base butt.

The utility model has the following beneficial effects:

the interlocking structure is simple in structure, convenient to operate and good in reliability, can be applied to power equipment, can ensure that at least one of the two plug connectors cannot be pulled out by mistake, so as to prevent the risks of open circuit of a secondary coil of the current transformer, open circuit of a voltage loop, electric energy metering loss and the like caused by similar pulling out and inserting by mistake, and has wide practicability.

Drawings

FIG. 1 is an assembly view of an embodiment of the interlock structure of the present invention.

Fig. 2 is a schematic view of a base structure of an interlocking structure embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of a base of an interlocking structure embodiment of the utility model.

Fig. 4 is a schematic view of a plug connector structure according to an embodiment of the interlocking structure of the present invention.

Detailed Description

For a further understanding of the utility model, reference will now be made to the preferred embodiments of the utility model by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the utility model, and not to limit the scope of the claims.

Referring to fig. 1-4, the present embodiment provides an interlocking structure, which includes a base 1 configured with a plugging portion, at least two connectors 2 capable of being plugged onto the base, and two

elastic clamping mechanisms

16a, 16b disposed on the base, wherein the

elastic clamping mechanisms

16a, 16b limit the plug from being pulled out when only one connector is plugged onto the base, and release the limit when two connectors are plugged onto the base at the same time.

Specifically, referring to fig. 2 and 3, the base 1 is provided with a first row of plug-in posts 11 and a second row of plug-in posts 12 side by side, and two sets of plug bushes 102 are respectively provided in the two rows of plug-in posts. The

elastic clamping mechanisms

16a and 16b are arranged between the two rows of inserting columns.

Referring to fig. 1 and 3, the elastic clamping mechanism 16a includes a first clamping member 161 and a second clamping member 163 movably mounted in the limiting groove of the base 1, and the two clamping members are U-shaped with the same shape and are mounted at opposite positions. Wherein, one end of the first clamping member 161 is provided with a clamping head 164, and the other end is provided with an inclined stress surface 165. The second clamping member 163 is similar in structure. The bottom of two joint spare is equipped with the erection column respectively, and the cover is equipped with spring 162 on the erection column, and the spring on two joint spare is used for providing opposite direction's elastic force respectively. The structure of the other set of interlocking mechanisms 16b is similar to the structure of interlocking mechanisms 16a and will not be described in detail herein.

Referring to fig. 4, in the present embodiment, the connector 2 includes a plug housing 22 and a ferrule 23 disposed in the plug housing, and the ferrule 23 is provided with a plurality of pins 24 corresponding to the plug sleeves of the plug posts on the base. There is a wiring space between the back of the ferrule 23 and the plug housing 22, and when the first plug 2 is connected to other equipment, the wiring enters the plug housing 22 through the wiring portion 21 and is connected to each pin on the ferrule 23. In addition, a clamping groove 221 is provided on the plug housing 22 of the plug-in unit 2, and when the plug-in unit 2 is plugged into the base, the clamping groove 221 is adapted to the clamping head 164 of the first clamping member 161. The structure of the other plug connector is similar to that of the plug connector 2, and a similar clamping groove is also formed in the plug shell.

Referring to fig. 1, (for clarity, the plug connector in the figure only shows a housing part), when only the first plug connector 2 or the second plug connector 3 is plugged on the base, the first plug connector or the second plug connector is clamped with the clamping groove on the first plug connector or the second plug connector under the action of the spring, and at this time, the first plug connector or the second plug connector cannot be pulled out alone. And when another plug connector is also inserted, the plug shell acts on the stress surface inclined at one end of the clamping piece, so that the clamping piece is pushed to overcome the elastic force of the elastic element to generate displacement, and the clamping head at the other end is separated from the clamping groove on the plug shell. At this time, either one of the two plug-in units can be freely pulled out. And when one of the plug connectors is pulled out, the clamping piece pushed by the plug connector returns to the original position again under the action of the elastic force of the spring, so that the clamping head is clamped in the clamping groove on the plug shell again, and the plug connector which is not pulled out can not be freely pulled out any more.

By adopting the structure, only one plug connector on the base can not be freely pulled out, and any plug can be freely pulled out when the two plug connectors are all inserted, thereby effectively preventing the open circuit of the current secondary loop caused by the whole pulling-out of the plug.

The above description of the embodiments is only intended to facilitate the understanding of the method of the utility model and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an interlocking structure which characterized in that, is including the base that disposes grafting portion, can peg graft two at least plug connectors on the base to and set up at least one elasticity clamping mechanism on the base, elasticity clamping mechanism limits this plug connector to extract when only one plug connector is pegged graft on the base, and removes this restriction when two at least plug connectors are pegged graft on the base simultaneously.

2. The interlocking structure of claim 1, wherein the elastic clamping mechanism is arranged between two plug connectors and comprises a first clamping piece and a second clamping piece which are movably arranged on the base and respectively provided with an elastic element, and the plug connectors are respectively provided with a clamping part; when only first plug connector/second plug connector are plugged, first joint spare/second joint spare and the joint portion joint of first plug connector/second plug connector under the elastic element effect, and when second plug connector/first plug connector are inserted, promote first joint spare/second joint spare overcomes elastic element's elasticity and produces the displacement, makes first joint spare/second joint spare break away from with the joint portion of first plug connector/second plug connector.

3. The interlocking structure of claim 2, wherein the clamping portion is a clamping groove formed in the connector clip, one end of each of the first clamping member and the second clamping member is provided with a clamping head matched with the clamping groove, and the other end of each of the first clamping member and the second clamping member is provided with an inclined stress surface; when the first plug connector or the second plug connector is inserted, at least one part of the first plug connector or the second plug connector is in contact with the stress surface and pushes the second clamping piece or the first clamping piece to overcome the elasticity of the elastic element to displace.

4. The interlock structure of claim 3, wherein said first and second snap members are U-shaped, and said snap tabs and force-bearing surfaces are disposed at two free ends of the U-shaped structure, respectively.

5. The interlock feature of claim 4 wherein said first snap member and said second snap member are mounted side-by-side and in opposite directions.

6. The interlock feature of any one of claims 2 to 4 wherein said resilient member is a spring, the springs on the two snap-fit members each being adapted to provide resilient forces in opposite directions.

7. The interlock structure of claim 6, wherein the first and second clips have spring mounting portions, the spring is sleeved on the spring mounting portions, and the other end of the spring is abutted against the base.