CN100401607C

CN100401607C - Combined type junction box

Info

Publication number: CN100401607C
Application number: CNB2003101124319A
Authority: CN
Inventors: 万照勇
Original assignee: Individual
Current assignee: Guangdong Futina Electrical Co Ltd
Priority date: 2003-12-02
Filing date: 2003-12-02
Publication date: 2008-07-09
Anticipated expiration: 2023-12-02
Also published as: CN1547300A

Abstract

The present invention discloses a combined terminal box which comprises a surface cover and a seat, wherein the surface cover is connected by screws; the internal parts of four side walls of the seat are provided with a gap and two connecting grooves on at least one side wall, and a groove is arranged on the lip along the gap. The gap is provided with an inserted plate; the shape of the inserted plate corresponds to the gap; the inserted plate is inserted into the groove from top to bottom, and accordingly, the gap is sealed. The connecting grooves are arranged on both sides of the gap; the internal parts of the connecting grooves are provided with inserted plug pins from top to bottom; the plug pins are composed of two identical connecting parts which are arranged side by side and are connected into a whole; one connecting part is arranged in the connecting grooves of the combined terminal box; a second connecting part is exposed from the internal parts of the connecting grooves of the combined terminal box and is matched with the other connecting groove of the combined terminal box with the identical structure; the contact side surface of the connecting parts and the connecting grooves is in a staggering shape; the plug pins are positioned in the thickness direction of the side wall, and the plug pins and the inserted plate are totally packed on the side wall by the surface cover. The present invention has the advantages of simple and reasonable structure, easy assembly and low cost.

Description

Combined junction box

(1) technical field

The invention discloses a kind of electrical junction box, especially a kind of combined junction box that can free assembly unit.

(2) background technology

The base of present existing terminal box (as Fig. 1) is a monolithic construction.It exists following defective: the one, and function is fixed, can not arbitrary combination; The 2nd, the threading inconvenience, when two or more terminal boxes are arranged, must be one side of terminal box or polygon punching, threading is wasted time and energy.

(3) summary of the invention

A kind of arbitrarily combined junction box of assembly unit that the objective of the invention is to overcome above-mentioned deficiency and propose.

For achieving the above object, the present invention is by the following technical solutions:

A kind of combined junction box, comprise cover and base with screw attachment, in four sidewalls of base, have at least and offer a breach and two connection slots on the sidewall, lip along breach has groove, this breach is equipped with plate, thereby the shape of plate and breach are corresponding and insert groove from the top down and seal this breach, connection slot is arranged in the breach both sides, the latch that has insertion from the top down in the connection slot, latch is identical by two, side by side, and the connection part that fuses constitutes, one of them point of attachment is in the connection slot of this combined junction box, second connection part exposes in the connection slot of this combined junction box can be for cooperating with the connection slot of the combined junction box of another same structure, connection part is the convex-concave shape with the side that contacts between the connection slot, both are meshing with each other and latch are located on the sidewall thickness direction, and latch and plate all are encapsulated on the sidewall by cover.

When desiring assembling combination, plate on the two side of two terminal box joints can be removed, expose breach, so that threading inserts in latch in the connection slot of two terminal boxes again, two terminal boxes are located mutually, wiring bonnet upper cover, get final product cover and base are fixing with screw at last, two independently terminal box become a new complete terminal box, and wiring space is the twice of original single terminal box.

Technique scheme also can adopt following technical measures to be further improved.

Four routine wall constructions of described base are identical.Can on the four direction of terminal box, add other terminal box like this, both can a plurality of terminal box assembling combination be arranged a row, four terminal boxes can be formed sphere of movements for the elephants shape again.

Described plate and latch are all wide at the top and narrow at the bottom.Like this can be so that insert breach or connection slot, and the withdrawing pattern when helping making.

Described connection slot all has opening at the surfaces externally and internally of sidewall.When a certain sidewall need not connect other terminal box, a connection part of latch can be inserted in the connection slot, and another connection part is placed in the terminal box, in order to avoid latch protrudes from outside the sidewall.

The section of described connection slot is cross, and the section of latch is Chinese character written in the cursive hand capitiform.

The lower surface of described cover has groove, and when cover was fixed on the base, described plate upper edge embedded in the groove.After sealing cover, the edge of plate is located substantially in cover or the sidewall, installs firm.

Four jiaos of described bases are respectively equipped with the erection column with screw attachment, and four jiaos of the lower surface of described cover have counterbore, and when cover was fixed on the base, described erection column upper end embedded in the counterbore.Because the jagged and connection slot of base side wall, base bulk strength and rigidity are reduced, and cooperate the intensity and the rigidity that can improve whole terminal box between cover and the erection column.

Described plate is provided with the knock down hole of the pore-forming that is easy to rupture.Like this can be so that threading.Existing structure is that knock down hole is located on the base side wall.

Described plate chimb by main body and around being positioned at, that embed breach groove and cover groove constitutes, and the relative chimb of main body outer surface outwards protrudes, and when plate inserted in base side wall, the main body outer surface was concordant with the base side wall outer surface.Both strengthened the intensity of plate and whole terminal box, made plate entire product good looking appearance again.

The present invention is simple and reasonable, and is easy to assembly, easy to manufacture, and cost is low.Answer the user to make up two or more independently terminal boxes cleverly, need not change terminal box and just strengthen wiring space, winding displacement is more convenient, also helps the standardization of terminal box.

(4) description of drawings

Fig. 1 is the structural representation of the base of existing terminal box;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the stereogram of latch 4 among Fig. 2;

Fig. 4 is the stereogram of Fig. 2 centerboard 3;

Fig. 5 is the stereogram of base 5 among Fig. 2;

Fig. 6 is the stereogram of cover 2 among Fig. 2;

Fig. 7 is assembling combination state diagram of the present invention:

Fig. 8 is the sectional drawing of other five execution modes of latch 4.

(5) embodiment

Below in conjunction with drawings and Examples the present invention is described in further detail.

As shown in the figure, a kind of combined junction box comprises the cover 2 and the base 5 that connect with screw 1.Cover 2 upper surfaces have is convenient to the netted aperture that self-tapping screw is installed.On four sidewalls of base, all offer a breach 51 and two connection slots 52 respectively.Lip along breach 51 has groove 511, is fitted with plate 3 in the breach 51, thereby the shape of plate 3 and breach are corresponding and insert groove 511 from the top down and seal this breach 51 (as Fig. 2).Connection slot 52 is arranged in breach 51 both sides, has the latch 4 of insertion from the top down in the connection slot 52, and latch 4 and connection part 41 that fuse identical, side by side by two constitutes.52, the second connection parts 42 of connection slot that one of them connection part 41 is positioned at this combined junction box expose in the connection slot 52 of this combined junction box can be for cooperating (as Fig. 7) with the connection slot 52 of the combined junction box of another same structure.Connection part 41 is the convex-concave shape with the side that contacts between the connection slot 52, and both are meshing with each other and latch 4 is located on the sidewall thickness direction, and latch 4 and plate 3 all are encapsulated on the sidewall by cover 2.

In Fig. 7, plate on the two side of two terminal box joints is removed, expose breach 51, latch 4 inserts in the connection slot 52 of two terminal boxes, two terminal boxes are located mutually, encapsulate respectively with cover 2, and cover 2 is fixing with base 5 with screw 1, two independently terminal box become a new complete terminal box.

Described plate 3 and latch 4 are all wide at the top and narrow at the bottom.

Described connection slot 52 all has opening at the surfaces externally and internally of sidewall.As Fig. 2 and Fig. 7, when sidewall need not connect other terminal box, a connection part 41 of latch 4 can be inserted in the connection slot 52, and another connection part 42 is placed in the terminal box, latch 4 does not outwards protrude from sidewall as we can see from the figure.

The section of described connection slot 52 is cross, and the section of latch 4 is Chinese character written in the cursive hand capitiform.

The lower surface of described cover 2 has groove 21, and when cover 2 was fixed on the base 5, described plate 3 upper edges embedded in the groove 21.

Described base is respectively equipped with the erection column 53 that connects with screw 1 for 5 four jiaos, and four jiaos of the lower surface of described cover 2 have counterbore 22, and when cover 2 was fixed on the base 5, described erection column 53 upper ends embedded in the counterbore 22.

Described plate 3 chimb 31 by main body and around being positioned at, that embed breach groove and cover groove constitutes, and the relative chimb 31 of main body outer surface outwards protrudes, and when plate inserted in base side wall, the main body outer surface was concordant with the base side wall outer surface.

Latch 4 can also use other structure, and its section as shown in Figure 8.Generally be that section is set in the side is triangle or rectangle or arc or circular raised or sunken in the illustrated embodiment, adopt in fact shapes such as ellipse, hyperbola, parabola all can, adopt irregularly shaped also can, all within protection range of the present invention.

Claims

1. combined junction box, comprise cover and base with screw attachment, it is characterized in that: in four sidewalls of base, have at least and offer a breach and two connection slots on the sidewall, lip along breach has groove, this breach is equipped with plate, thereby the shape of plate and breach are corresponding and insert groove from the top down and seal this breach, connection slot is arranged in the breach both sides, the latch that has insertion from the top down in the connection slot, latch is identical by two, side by side, and the connection part that fuses constitutes, one of them point of attachment is in the connection slot of this combined junction box, second connection part exposes in the connection slot of this combined junction box can be for cooperating with the connection slot of the combined junction box of another same structure, connection part is the convex-concave shape with the side that contacts between the connection slot, both are meshing with each other and latch are located on the sidewall thickness direction, and latch and plate all are encapsulated on the sidewall by cover.

2. combined junction box according to claim 1 is characterized in that: four side wall constructions of described base are identical.

3. combined junction box according to claim 1 and 2 is characterized in that: described plate and latch are all wide at the top and narrow at the bottom.

4. combined junction box according to claim 1 and 2 is characterized in that: described connection slot all has opening at the surfaces externally and internally of sidewall.

5. combined junction box according to claim 4 is characterized in that: the section of described connection slot is cross, and the section of latch is Chinese character written in the cursive hand capitiform.

6. combined junction box according to claim 1 and 2 is characterized in that: the lower surface of described cover has groove, and when cover was fixed on the base, described plate upper edge embedded in the groove.

7. combined junction box according to claim 1 and 2, it is characterized in that: four jiaos of described bases are respectively equipped with the erection column with screw attachment, four jiaos of the lower surface of described cover have counterbore, and when cover was fixed on the base, described erection column upper end embedded in the counterbore.

8. combined junction box according to claim 1 and 2 is characterized in that: described plate is provided with the knock down hole of the pore-forming that is easy to rupture.

9. combined junction box according to claim 6, it is characterized in that: described plate chimb by main body and around being positioned at, that embed breach groove and cover groove constitutes, the relative chimb of main body outer surface outwards protrudes, when plate inserted in base side wall, the main body outer surface was concordant with the base side wall outer surface.