Junction box with pluggable connection column

Abstract

The utility model discloses a junction box with a pluggable connecting column, which comprises a junction box and a connecting column, and the junction box is provided with a plurality of chutes; after the length of the connecting column extending out of the sliding groove is controlled according to the thickness of the heat preservation layer, one end of the connecting column is fixedly connected into the sliding groove, and the other end is flush with the end of the sliding groove or extends out of the sliding groove. Threaded holes used for being connected with an electrical panel are formed in the ends, located on the outer sides of the sliding grooves, of the connecting columns. And the junction box is pre-embedded in a concrete wall surface with internal thermal insulation and a laminated slab cast-in-place slab strip. The connecting column is arranged on the junction box, and the length of the connecting column extending out of the junction box is controlled, so that the electrical panel fixed on the junction box is fixed on the connecting column; compared with the prior art that the junction box and the electrical panel are fixed through long bolts, the junction box and the electrical panel are fixed through the connecting columns serving as middleware between the junction box and the electrical panel, use of lengthened screws is avoided, meanwhile, it is guaranteed that most screw rods on the screws are screwed into threaded holes of the connecting columns, the stability of the panel is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to a junction box with pluggable connecting columns. Background Art

[0002] In the field of construction, the traditional junction box embedded in the concrete wall with internal insulation and the cast-in-place slab of the composite slab has a large distance between the finished surface and the junction box surface, which leads to the need to use extended screws (up to 120 mm in length) to fix the electrical panel when it is installed later. The above problem will lead to the following two disadvantages:

[0003] (1) Because the distance between the finished surface and the surface of the box is too large, most of the screws on the screws are not screwed into the screw holes, and the stability of the panel cannot be guaranteed.

[0004] (2) The use of extended screws leads to increased construction costs. Utility Model Content

[0005] In view of the above defects in the prior art, a junction box with pluggable connecting columns is provided, which is suitable for decoration layers of different thicknesses, avoids the use of lengthened screws, reduces construction costs, increases panel stability and improves economic benefits.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A junction box with a pluggable connecting column is characterized in that it includes a junction box and a connecting column, a plurality of slide grooves are provided on the junction box, and the cross-sectional dimensions of the slide grooves match the cross-sectional dimensions of the connecting column; after controlling the length of the connecting column extending out of the slide groove according to the thickness of the insulation layer, one end of the connecting column is fixedly connected in the slide groove, and the other end is flush with the end of the slide groove or extends out of the slide groove; a threaded hole for connecting an electrical panel is provided at the end of the connecting column located outside the slide groove; the junction box is pre-buried in a concrete wall with internal insulation and in the cast-in-place slab of the composite slab.

[0008] According to the above technical solution, several groups of limit plates are provided on the junction box, each group of limit plates is composed of two limit plates; the limit plates adopt an L-shaped structure, and a slide groove matching the shape of the connecting column is formed between the two limit plates.

[0009] According to the above technical solution, the limiting plate includes a first section and a second section, the first section is connected to the junction box; the thickness of the connecting column is greater than the width of the first section, and a guide groove is provided on the side of the connecting column in the thickness direction, and the thickness of the guide groove is the same as the thickness of the second section.

[0010] According to the above technical solution, a groove, a return spring, and a latch are provided on the side surface of the connecting column in the thickness direction, and the latch and the return spring are placed in the groove; a latch hole matching the latch is provided on the side wall of the slide groove.

[0011] According to the above technical solution, connecting columns of various specifications are arranged according to the thickness of the commonly used thermal insulation layer.

[0012] According to the above technical solution, a plurality of latch holes are provided on the side of the slide groove according to the construction thickness of the commonly used thermal insulation layer.

[0013] According to the above technical solution, the junction box adopts a coverless box structure, and one of the sliding grooves is respectively provided on two opposite sides of the box body.

[0014] According to the above technical solution, the material of the junction box is polyvinyl chloride, polycarbonate, ABS resin, stainless steel, and iron.

[0015] The utility model has the following beneficial effects:

[0016] By arranging a connecting column on the junction box, the length of the connecting column extending out of the junction box is controlled according to the thickness of the insulation layer, so that the electrical panel fixed on the junction box is fixed on the connecting column; compared with the prior art in which the junction box and the electrical panel are fixed by long bolts, the utility model uses the connecting column as an intermediate piece between the junction box and the electrical panel, thereby avoiding the use of lengthened screws and ensuring that most of the screws on the screws are screwed into the threaded holes of the connecting column, thereby increasing the stability of the panel and reducing the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the connecting column of the embodiment provided by the utility model;

[0019] Figure 3 It is a schematic structural diagram of a limiting piece provided in an embodiment of the utility model;

[0020] In the figure, 1, junction box; 2, connecting column; 2-1, threaded hole; 2-2, guide groove; 3, slide groove; 4, limit plate; 5, latch; 6, latch hole. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1-2 As shown, the utility model provides a junction box with pluggable connecting posts.

[0023] Example 1

[0024] It comprises a junction box 1 and a connecting column 2, and a plurality of slide grooves 3 are arranged on the junction box, and the cross-sectional dimensions of the slide grooves match those of the connecting column; after controlling the length of the connecting column extending out of the slide groove according to the thickness of the insulation layer, one end of the connecting column is fixedly connected in the slide groove, and the other end is flush with the end of the slide groove or extends out of the slide groove; a threaded hole 2-1 for connecting an electrical panel is arranged at the end of the connecting column located outside the slide groove; the junction box is pre-buried in a concrete wall with internal insulation and in the cast-in-place slab of the composite slab.

[0025] In this embodiment, a connecting column is provided on the junction box, and the length of the connecting column extending out of the junction box is controlled according to the thickness of the insulation layer, so that the electrical panel fixed on the junction box is fixed on the connecting column; compared with the prior art in which the junction box and the electrical panel are fixed by long bolts, the utility model uses the connecting column as an intermediate piece between the junction box and the electrical panel, thereby avoiding the use of lengthened screws, and also ensuring that most of the screws on the screws are screwed into the threaded holes of the connecting column, thereby increasing the stability of the panel and reducing the construction cost.

[0026] Example 2

[0027] The structure and principle of Example 2 are similar to those of Example 1, except that a structural design of a slideway is provided. Specifically, a plurality of groups of limit plates 4 are provided on the junction box, each group of limit plates is composed of two limit plates; the limit plates adopt an L-shaped structure, and a slideway matching the shape of the connecting column is formed between the two limit plates.

[0028] Preferably, as shown in the figure, in order to facilitate fixing the connecting column in the slide groove, the limiting plate includes a first section and a second section, and the first section is connected to the junction box; the thickness of the connecting column is greater than the width of the first section, and a guide groove 2-2 is provided on the side of the connecting column in the thickness direction, and the thickness of the guide groove is the same as the thickness of the second section.

[0029] In order to facilitate the connection of the connecting column in the slide slot, a preferred fixing form of the connecting column and the junction box is provided. Other fixing forms may also be used. A groove, a reset spring, and a latch 5 are provided on the side of the connecting column in the thickness direction. The latch and the reset spring are placed in the groove; a latch hole 6 matching the latch is provided on the side wall of the slide slot. In this embodiment, the latch is inserted into the latch hole of the fiber sheet under the action of the reset spring to achieve a fixed connection between the connecting column and the junction box. In the embodiment in the figure, the latch hole is provided on the side of the limit sheet.

[0030] Based on the above structure, a form of adjusting the length of the connecting column extending out of the chute is provided. According to the thickness of the commonly used insulation layer, connecting columns of various specifications are set. According to the actual construction thickness of the insulation layer, different connecting columns are selected and installed on the junction box.

[0031] Example 3

[0032] The structure and principle of Example 3 are similar to those of Example 2, except that another form of adjusting the length of the connecting column extending out of the chute is provided, which is not shown in the figure. According to the construction thickness of the commonly used insulation layer, a plurality of latch holes are provided on the side of the chute. According to the actual construction thickness of the insulation layer, the latch is selectively inserted into different latch holes, thereby realizing the installation of the connecting column on the junction box.

[0033] In embodiments 1-3, the junction box adopts a coverless box structure, and one of the sliding grooves is provided on two opposite sides of the box body.

[0034] In embodiments 1-3, the junction box is made of polyvinyl chloride, polycarbonate, ABS resin, stainless steel, or iron.

[0035] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of patent application of the present invention still fall within the protection scope of the present invention.

Claims

1. A junction box with pluggable connecting posts, characterized in that: It includes a junction box and a connecting column. A plurality of slide grooves are arranged on the junction box. The cross-sectional dimensions of the slide grooves match those of the connecting column. After the length of the connecting column extending out of the slide groove is controlled according to the thickness of the insulation layer, one end of the connecting column is fixedly connected in the slide groove, and the other end is flush with the end of the slide groove or extends out of the slide groove. A threaded hole for connecting the electrical panel is arranged at the end of the connecting column located outside the slide groove. The junction box is pre-buried in the concrete wall with internal insulation and the cast-in-place plate strip of the composite slab.

2. The junction box with pluggable connecting posts according to claim 1, characterized in that: A plurality of groups of limiting plates are arranged on the junction box, and each group of limiting plates is composed of two limiting plates; the limiting plates adopt an L-shaped structure, and a sliding groove matching the shape of the connecting column is formed between the two limiting plates.

3. The junction box with pluggable connecting posts according to claim 2, characterized in that: The limiting piece includes a first section and a second section, the first section is connected to the junction box; the thickness of the connecting column is greater than the width of the first section, and a guide groove is provided on the side of the connecting column in the thickness direction, and the thickness of the guide groove is the same as the thickness of the second section.

4. The junction box with pluggable connecting posts according to claim 2, characterized in that: A groove, a return spring and a latch are arranged on the side surface of the connecting column in the thickness direction, and the latch and the return spring are placed in the groove; a latch hole matching the latch is arranged on the side wall of the sliding groove.

5. The junction box with pluggable connecting posts according to any one of claims 1 to 4, characterized in that: According to the thickness of the commonly used insulation layer, connecting columns of various specifications are set.

6. The junction box with pluggable connecting posts according to claim 4, characterized in that: According to the commonly used construction thickness of the thermal insulation layer, a plurality of latch holes are provided on the side of the slideway.

7. The junction box with pluggable connecting posts according to claim 1, characterized in that: The junction box adopts a coverless box structure, and a sliding groove is respectively provided on two opposite sides of the box body.

8. The junction box with pluggable connecting posts according to claim 1, characterized in that: The materials of the junction box are polyvinyl chloride, polycarbonate, ABS resin, stainless steel, and iron.

Images