CN102570360A

CN102570360A - Bending fixation springing type concealed junction box

Info

Publication number: CN102570360A
Application number: CN2012100024632A
Authority: CN
Inventors: 张金明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-06
Filing date: 2012-01-06
Publication date: 2012-07-11
Anticipated expiration: 2032-01-06
Also published as: CN102570360B

Abstract

The invention relates to a bending fixation springing type concealed junction box and belongs to the field of electrical accessories. The technical scheme adopted by the invention is as follows: the junction box comprises a box body, a box bottom, spring pieces, plugging pieces, connecting pieces and the like; the box body is formed by welding sheet metals which are bent and formed, wherein the sheet metals are provided with knockdown holes, positioning pins, lugs and circular holes, the knockdown holes and the positioning pins are formed by pressing, the lugs and the circular holes are formed by punching, and hook pieces pass through the circular holes; long slots through which the lugs can pass are formed in the box bottom through punching, the box bottom is buckled with the box body after the lugs of the box body pass through the long slots, the four sides of the box bottom are bent, then, the lugs are bent, thus the box bottom and the box body can be conveniently and quickly fixed together; after the positioning pins of the box body are bent, exposed spaces are plugged by the plugging pieces, and the spot welding is carried out so as to close the spaces; and when an electric wire pipe is connected with the junction box, after the knockdown holes are pushed out, the M-shaped spring pieces are mounted, penetrate through the junction box, and are locked by the springing force of the spring pieces, and the electric wire pipe has no need of being provided with threads. The bending fixation springing type concealed junction box has the beneficial effects of simplicity and convenience in production processing, few processes, low cost, labor saving and rapidness in mounting and embedding, greatly-increased construction efficiency, novel design, reasonable structure, safety and reliability.

Description

A kind of bending is elastic press type concealed installation terminal box fixedly

Technical field

The present invention relates to a kind ofly be used for construction and be embedded into fixedly elastic press type concealed installation terminal box of concrete bending, belong to the electric accessories field.

Background technology

In construction; After the assembling reinforcement, will be embedded into conduit before the cast concrete; If circuit is long or the conduit corner will adopt terminal box as transition, the electric wire of conduit the inside couples together in terminal box, plays protection electric wire and the effect that is connected electric wire.According to the drawing position, earlier fix terminal box, couple together conduit and terminal box again, carry out seal and the sealing of interface after pre-buried, generally the concealed installation terminal box is processed with metal.Existing metallic wiring box and being connected of conduit are that the conduit that screw thread is made in the end is screwed in a nut, pierce into terminal box after ejecting knock down hole, hand are put in the box fasteningly another nut again, and work efficiency is low, and labour intensity is big.Process the brace of screw on relevant position that will be in box body with being connected also of box body at the bottom of the box is fixing, with screwdriver screw is added in the screw of precession brace in the hole at the bottom of Upper gasket penetrates box fasteningly, screw is difficult for aiming at, and screw, pad often drop.Angle on the terminal box also will be made in advance and be welded in the outer relevant position of box body.More than all, not only the production process of terminal box is many, cost is high, and pre-buried, install and to waste time and energy, efficient is very low, very inconvenience need be innovated.

Summary of the invention

The object of the invention is exactly the drawback that overcomes existing terminal box, and it is easy design a kind of both fabrication and processing, again the fixing elastic press type concealed installation terminal box of installation, pre-buried laborsaving bending efficiently.

Technical scheme of the present invention is: terminal box by box body, box at the bottom of, several parts such as spring leaf, jam, brace form; Box body is with being pressed with knock down hole and angle, after auricle being arranged and be used to penetrate the sheet metal bending and molding of the circular hole that colludes sheet, being welded into; Dash the elongated slot have auricle to penetrate at the bottom of the box, the auricle of box body penetrates behind the elongated slot being buckled at the bottom of the box on the box body four Edge Bends, again the auricle bending can be quickly and easily with at the bottom of the box and box body be fixed together; Make it airtight to the stifled upward spot welding in the space of exposing with jam after the angle bending on the box body; When conduit is connected with terminal box, ejects and load onto the spring leaf of processing M shape behind the knock down hole and pierce into terminal box, rely on the elastic force pressure locking of spring leaf, conduit needn't be made screw thread.

The invention has the beneficial effects as follows: fabrication and processing is easy, and operation is few, cost is low, and installation, pre-buried laborsaving quick improves efficiency of construction greatly, and is novel in design, rational in infrastructure, safe and reliable.

Description of drawings

Fig. 1 is a structure front elevational schematic of the present invention.

Fig. 2 is that sketch map is looked on the left side of Fig. 1.

Fig. 3 is the schematic top plan view of Fig. 1.

Fig. 4 is the expansion sketch map that part 1 box body dwindles among Fig. 1.

Fig. 5 is the expansion sketch map at the bottom of part 2 boxes among Fig. 1.

Fig. 6 is the enlarged diagram of part 4 spring leafs among Fig. 1.

Embodiment

Specify details of the present invention and working condition in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6.Terminal box by box body 1, box at the bottom of 2, several parts such as spring leaf 4, jam 7, brace 9 form; Box body 1 usefulness is pressed with knock down hole 3, dashes to be welded into after auricle 5, angle 6 being arranged and being used to penetrate the sheet metal bending and molding of the circular hole that colludes sheet 8, and it is as shown in Figure 4 to launch sketch map; Like usefulness on ceiling, the U-shaped of knock down hole 3 should be downward.Dash the elongated slot that has auricle 5 to penetrate at the bottom of the box on 2,2 expansion sketch map is as shown in Figure 5 at the bottom of the box; The auricle 5 of box body 1 penetrates behind the elongated slot 2 being buckled on the box body 1 four Edge Bends at the bottom of the box, again auricle 5 bendings can be quickly and easily with 2 being fixed together at the bottom of the box with box body 1; Having saved existing terminal box from design will the relevant position in box body burn-on and processes the brace of screw; Also to screw be added in the screw of precession brace in the hole at the bottom of Upper gasket penetrates box fastening during connection with screwdriver; Avoided screw to be difficult for aiming at the trouble that screw, pad often drop.Make it airtight to the stifled upward spot welding in the space of exposing with jam 7 after angle 6 bendings on the box body 1.Brace 9 is inserted in to collude penetrates in the circular hole on the box body 1 bending behind the sheet 8 and fix, be used for and being connected of panel.When conduit is connected with terminal box, load onto the spring leaf 4 of processing M shape after ejecting knock down hole 3, terminal box is pierced on the inside and outside both sides that strut spring leaf 4 with special-purpose wrench, and conduit is decontroled through the relevant position and got final product; Spring leaf 4 usefulness 60Si2Mn leaf springs are made, and its enlarged diagram is as shown in Figure 5; Rely on the elastic force pressure locking of spring leaf 4, seal with adhesive tape then or insert sawdust bag, spitball; This connected mode is compared with existing connected mode, and conduit needn't be made screw thread, has reduced operation, has accelerated pre-buried progress.The invention has the beneficial effects as follows: fabrication and processing is easy, and operation is few, cost is low, and installation, pre-buried laborsaving quick improves efficiency of construction greatly, and is novel in design, rational in infrastructure, safe and reliable.

Claims

1. the fixing elastic press type concealed installation terminal box of a bending is characterized in that: terminal box by box body (1), box at the bottom of (2), spring leaf (4), jam (7), brace several parts such as (9) form; Box body (1) is with being pressed with knock down hole (3) and angle (6), after auricle (5) being arranged and be used to penetrate the sheet metal bending and molding of the circular hole that colludes sheet (8), being welded into; (2) are gone up and are dashed the elongated slot that has auricle (5) to penetrate at the bottom of the box; The auricle (5) of box body (1) is buckled in box body (1) to (2) at the bottom of the box upward with four Edge Bends after penetrating elongated slot, can be fixed together auricle (5) bending with (2) at the bottom of the box and box body (1) quickly and easily again; Make it airtight to the stifled upward spot welding in the space of exposing with jam (7) after angle (6) bending on the box body (1); When conduit is connected with terminal box, ejects and load onto the spring leaf (4) of processing M shape behind the knock down hole (3) and pierce into terminal box, rely on the elastic force pressure locking of spring leaf (4), conduit needn't be made screw thread.