CN111197435A

CN111197435A - Header box door locking device

Info

Publication number: CN111197435A
Application number: CN201911403313.0A
Authority: CN
Inventors: 刘业军; 金宝
Original assignee: Anhui Canbang Electric Co ltd
Current assignee: Anhui Canbang Electric Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-05-26

Abstract

The invention discloses a converging box door locking device which comprises a locking plate and a connecting plate, wherein the locking plate is installed on the inner side of a box body of a converging box, the connecting plate is movably connected to the inner side of a box door of the converging box, the other end of the connecting plate is movably connected with a limiting shaft, the end part of an upper shaft body is fixedly connected with a top plate used for limiting the limiting shaft at the upper port of a limiting hole, the end part of a lower shaft body is fixedly connected with a bottom plate used for limiting the limiting shaft at the lower port of the limiting hole, the diameter of the upper shaft body is matched with the diameter of the limiting hole, the diameter of the lower shaft body is matched with the width of a. The upper shaft body and the lower shaft body of the limiting shaft, which have different diameters, are combined with the track with the limiting hole, so that the limiting locking under the condition of the self gravity of the limiting shaft is realized, the operation is convenient, and the use is stable and efficient.

Description

Header box door locking device

Technical Field

The invention relates to the technical field of box body locking, in particular to a box door locking device of a junction box.

Background

With the support of the country to the photovoltaic new energy, the photovoltaic products have been developed rapidly in recent years, the photovoltaic combiner boxes matched with the photovoltaic products are also used in large quantities, and enterprises for producing the photovoltaic combiner boxes are also increasing. However, with the development of the whole industry, the cost control is more and more demanding, and on the other hand, the industry requirement that the service life of the product in the photovoltaic industry needs to reach 25 years is not abandoned all the time. The importance of the photovoltaic combiner box as an equipment which is opened and closed in a photovoltaic system is more and more shown. Because the collection flow box is generally installed outdoors, some in mountain areas still be in desert grassland windy area, the environment of gale often runs into, if the chamber door of collection flow box does not have spacing locking device when overhauing in this environment have one person to hold up the door aside and assist like this can be fairly inconvenient, otherwise the chamber door of opening can swing along with the wind, wind is big probably can injure people, can blow off the chamber door for a long time even with the chamber door. In the past, the safety hidden danger and the operation and maintenance cost are not small. The other type is a hydraulic door limiter, the cost of the limiter is high, the service life of a hydraulic device is limited when the hydraulic device is used, and the hydraulic force is too careless when meeting a strong wind, so that the hydraulic door limiter cannot really adapt to the outdoor environment requirement of the combiner box. The novel application of the automatic locking and limiting device for the box door of the junction box solves the possible problems, and the situation that the box door is blown off due to the absence of the limiting device and a person needs to support the door in a matching way during maintenance can not occur after each junction box is used; meanwhile, as the structure is innovative and is not a hydraulic type, the service life is greatly prolonged, the strength is high, and the manufacturing cost is low. The long-term stable operation of the combiner box is improved, the reliability of a photovoltaic system is ensured, the daily maintenance cost of operation and maintenance is reduced, the long-term reliable operation of the photovoltaic system is well promoted, the combiner box is successfully applied to the combiner box production process of the company, the market response is good according to practical application cases of nearly two years, a great market popularization prospect can be realized according to calculation, and good economic benefits can be brought.

Disclosure of Invention

The present invention is directed to a box door locking device of a junction box, so as to solve the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a converging box door locking device comprises a locking plate arranged on the inner side of a converging box body and a connecting plate movably connected on the inner side of a converging box door, the other end of the connecting plate is movably connected with a limiting shaft, the locking plate is provided with a track for the limiting shaft to move along the length direction of the plate body, and a limiting hole for the limiting shaft to realize axial movement and limiting is formed at one end of the track close to the box door of the confluence box, the limiting shaft comprises an upper shaft body and a lower shaft body which are integrally formed, the end part of the upper shaft body is fixedly connected with a top plate for limiting the limiting shaft at the upper port of the limiting hole, the end part of the lower shaft body is fixedly connected with a bottom plate used for limiting the limiting shaft at the lower port of the limiting hole, the diameter of the upper shaft body is matched with the diameter of the limiting hole, the diameter of the lower shaft body is matched with the width of the track, and the diameter of the limiting hole is larger than the width of the track.

The junction of going up the axis body and going down the axis body is formed with the transition portion of falling round platform form, and this transition portion surface sets up smoothly.

The locking plate comprises a fixed plate fixedly connected to the header box body and a track plate which is bent by 90 degrees and is arranged on the fixed plate, and a track and a limiting hole are formed in the end face of the track plate.

The rotating plane of the connecting plate and the end surface of the track plate are in the same plane.

The limiting shaft is movably connected with and limited at the end part of the connecting plate.

According to the technical scheme, the defects of the prior art are overcome through the locking device, and the situation that the box door is blown down due to the absence of the limiting device and a person needs to support the door in a matching manner during maintenance can be avoided after the junction box is used; meanwhile, as the structure is innovative and is not a hydraulic type, the service life is greatly prolonged, the strength is high, and the manufacturing cost is low. The long-term stable operation of collection flow box has been improved, photovoltaic system's reliability has been ensured, the daily maintenance cost of fortune dimension has been alleviateed, has played fine promotion effect to photovoltaic system's long-term reliable operation, and specific upper shaft body and the lower shaft body that have different diameters through spacing axle to combine the track that has spacing hole, realized the spacing locking under the condition of spacing axle self gravity, convenient operation and use are stable high-efficient.

Drawings

FIG. 1 is a schematic structural view of a locked state of the present invention;

FIG. 2 is a structural schematic diagram of the unlocked state of the present invention;

FIG. 3 is a schematic view of a deployed structure of the latch plate of the present invention;

FIG. 4 is a side view of the latch plate of the present invention;

FIG. 5 is a schematic view of a connecting rod according to the present invention;

fig. 6 is a schematic view of a spacing shaft structure according to the present invention.

In the figure: 1 connecting plate, 2 locking plates, 21 fixing plates, 211 threaded holes, 22 track plates, 221 tracks, 222 limiting holes, 3 limiting shafts, 31 top plates, 32 shaft bodies, 321 upper shaft bodies, 322 lower shaft bodies and 33 bottom plates.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 6, it should be noted that the locking device for the box door of the junction box is suitable for automatically locking the box door of the junction box after being opened, and is realized by the self gravity of the limiting shaft 3, specifically:

the structure comprises a locking plate 2 arranged on the inner side of a box body of a confluence box, and a connecting plate 1 movably connected on the inner side of a box door of the confluence box, wherein the other end of the connecting plate 1 is movably connected with a limiting shaft 3, the locking plate 2 of the embodiment comprises a fixed plate 21 fixedly connected on the box body of the confluence box and a track plate 22 bent at 90 degrees with the fixed plate 21, a track 221 for the limiting shaft 3 to move along the length direction of a plate body of the locking plate 2, and a limiting hole 222 for the limiting shaft 3 to axially move and limit is formed at one end of the track 221 close to the box door of the confluence box, the track 221 and the limiting hole 222 are arranged on the end surface of the track plate 22, the important point is that the structure of the limiting shaft 3 of the embodiment is described, the limiting shaft 3 can realize axial displacement on the limiting hole 222 through self gravity, specifically, the limiting shaft 3 comprises an upper shaft body 321 and a lower shaft body 322 which are integrally formed, the end of the upper shaft body 321 is fixedly connected with a top plate 31 for limiting the limiting shaft 3 at the upper port of the limiting hole 222, the end of the lower shaft body 322 is fixedly connected with a bottom plate 33 for limiting the limiting shaft 3 at the lower port of the limiting hole 222, meanwhile, the diameter of the upper shaft body 321 is adapted to the diameter of the limiting hole 222, the diameter of the lower shaft body 322 is adapted to the width of the track 221, the diameter of the limiting hole 222 is larger than the width of the track 221, and it can be understood that the limiting shaft 3 is limited in size so that the shaft body 32 can be movably connected at the end of the connecting plate 1, and the lower shaft body 322 is limited in size so as to be capable of sliding displacement on the track 221, the upper shaft body 321 is limited to axially move in the limiting hole 222, and the top plate 31 and the bottom plate 33 are arranged to limit the limiting shaft 3 on the connecting plate 1 and the locking plate 2 without separation.

The specific using method comprises the following steps:

the limiting shaft 3 is movably connected to one end of the connecting plate 1, specifically, a through hole is formed in the end of the connecting plate 1, the limiting shaft 3 can move on the axis of the through hole, and meanwhile, the limiting shaft 3 is also movably connected in the limiting hole 222, that is, the limiting shaft 3 is sleeved in the through hole and the limiting hole 222 at the same time, and the axial displacement can be realized in the through hole and the limiting hole 222 due to the limitation of the sizes of the top plate 31 and the bottom plate 33 by the limiting shaft 3; in this embodiment, the lock is only used for locking the opened door of the combiner box, so the limiting hole 222 formed on the track plate 22 is located at the outer side of the end of the track 221, that is, the limiting hole 222 is located at the side close to the door, because the diameter of the lower shaft body 322 is smaller than that of the upper shaft body 321, and the diameter of the lower shaft body 322 is matched with the width of the track 221, the lower shaft body 322 can be displaced along the forming direction of the track 221, when the limiting shaft 3 is displaced to the limiting hole 222, the limiting shaft 3 can automatically drop under the action of gravity, because the size of the upper shaft body 321 is matched with the diameter of the limiting hole 222, the limiting shaft 3 can be limited in the limiting hole 222 through the upper shaft body 321 after dropping, so as to realize locking, in this embodiment, the positioning is skillfully realized through the upper shaft body 321 and the lower shaft body 322 with different diameters and combining the action of gravity, and the positioning is, the opening state of locking chamber door, it is when the chamber door needs to be closed, lift connecting plate 1 gently, the tip of connecting plate 1 can lift the height of spacing axle 3 and make upper shaft body 321 break away from in the aperture of spacing hole 222, move the tip of connecting plate 1 to on the track 221 afterwards alright make down the spacing connection of axis body 322 on the track 221, close the chamber door at last.

Go up the junction of axis body 321 and lower axis body 322 and be formed with the transition portion of falling round platform form, this transition portion surface sets up smoothly, and this kind of setting can effectually prevent that spacing axle 3 from taking place to interfere with the outer fringe part of spacing hole 222 at the in-process that falls, has promoted spacing axle 3's smooth and easy degree of use, has further improved product quality.

The rotating plane of the connecting plate 1 and the end face of the track plate 22 are on the same plane, and the arrangement ensures the smooth degree of the box door in the opening and closing process and the stability of structural use.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a collection flow box chamber door locking device which characterized in that: including installing at the inboard lock plate of collection flow box to and swing joint is at the inboard connecting plate of collection flow box chamber door, the other end swing joint of this connecting plate has spacing axle, be provided with the track that supplies spacing axle along its plate body length direction displacement on the lock plate, and be formed with the spacing axle of confession and realize axial displacement and spacing hole near the one end of collection flow box chamber door at the track, spacing axle is including integrated into one piece's last axis body and lower axis body, the tip rigid coupling of going up the axis body has the roof that is used for spacing at spacing hole up end department with spacing axle, axis body tip rigid coupling has the bottom plate that is used for spacing port department under spacing hole down, go up the diameter in the spacing hole of diameter adaptation of axis body, the orbital width of diameter adaptation of axis body down, the diameter in spacing hole is greater than orbital width.

2. The apparatus of claim 1, wherein: the junction of going up the axis body and going down the axis body is formed with the transition portion of falling round platform form, and this transition portion surface sets up smoothly.

3. The apparatus of claim 1, wherein: the locking plate comprises a fixed plate fixedly connected to the header box body and a track plate which is bent by 90 degrees and is arranged on the fixed plate, and a track and a limiting hole are formed in the end face of the track plate.

4. The apparatus of claim 3, wherein: the rotating plane of the connecting plate and the end surface of the track plate are in the same plane.

5. The apparatus of claim 1, wherein: the limiting shaft is movably connected with and limited at the end part of the connecting plate.