A device for protecting the finish of a joint in a jointing operation

Abstract

A kind of line box plastering closing protection device, including line box, magnetic suction plate, support, template bottom box and template face box, the magnetic suction plate covers at the opening of the line box to prevent mortar into the line box;The support can be detachably mounted in the line box to fix the magnetic suction plate;The template bottom box is opened at one end, and a magnet cooperating with the magnetic suction plate is mounted inside, and the other end is adsorbed on the magnetic suction plate by the magnet;The template face box is slidably installed in the template bottom box from the opening end of the template bottom box, and the template face box moves into the template bottom box when subjected to the force of plastering tool or screeding tool.The present application can solve the problem of insufficient final wall flatness and mortar waste caused by filler in traditional line box plastering construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a protective device for the plastering of junction boxes. Background Technology

[0002] During building construction, junction boxes need to be embedded in shear walls. Traditionally, foam or cotton cloth is used as filler to prevent concrete from clogging the boxes during pouring. During plastering, the traditional method involves inserting a U-shaped template into the junction box, supported by the filler. However, the irregular shape of the filler makes it difficult to guarantee precise thickness and flatness, often resulting in the U-shaped template being either entirely or partially higher than the plaster surface. When plastering around the junction box, the template being higher prevents the wall around the box from being leveled with a screed, leading to low construction efficiency and inconsistent wall flatness. Furthermore, when the template is lower than the plaster surface, a large amount of mortar is wasted by filling the junction box with mortar. Summary of the Invention

[0003] The purpose of this invention is to address the problems of insufficient wall surface flatness and mortar waste caused by filler materials in traditional junction box plastering construction.

[0004] To achieve the goal of going public, the present invention adopts the following technical solution:

[0005] A protective device for plaster finishing of a junction box, comprising a junction box, and further comprising,

[0006] A magnetic suction plate covers the opening of the junction box to prevent mortar from entering the junction box;

[0007] A support member, which can be detachably installed in the junction box to secure the magnetic plate;

[0008] A template base box, one end of which is open, and a magnet that cooperates with the magnetic plate is installed inside; the other end of the template base box is attached to the magnetic plate by the magnet; and,

[0009] A template face box is slidably installed inside the template base box from one open end, and moves into the template base box when subjected to the force of a plastering tool or a leveling tool.

[0010] Furthermore, the cross-sectional area of ​​the template bottom box is equal to the cross-sectional area of ​​the wire box.

[0011] Furthermore, the thickness of the template face box is less than or equal to the thickness of the template bottom box, and the thickness of the template bottom box is less than the thickness of the final plaster layer, while the sum of the thicknesses of the template bottom box and the template is greater than the thickness of the final plaster layer.

[0012] Furthermore, one end of the template face box is open, and a magnetic absorbing piece corresponding to the magnet is installed inside the template face box. The open end of the template face box is installed in the template bottom box.

[0013] Furthermore, when the magnetic snap-fit ​​sheet is fully extended, one end of the template face box opening coincides with one end of the template bottom box opening;

[0014] When the magnetic detachable sheet is fully compressed, the closed end of the template face box coincides with the open end of the template bottom box.

[0015] Furthermore, the support member is a diamond-shaped adjustable support member with adjusting bolts.

[0016] Furthermore, the template base box is provided with a pull tab to separate the template base box from the magnetic suction plate.

[0017] Furthermore, the template base box and template face box are made of plastic.

[0018] Furthermore, the magnetic chuck is a steel plate, and the magnet is a powerful magnet.

[0019] Beneficial effects of this invention:

[0020] In this invention, a magnetic suction plate is used to prevent mortar from entering the junction box during the plastering process; by setting a template bottom box and a template front box, a protective cover can be formed on the outside of the junction box. During plastering, a plaster layer of a certain thickness needs to be formed on the outside of the junction box. The template bottom box and template front box can ensure the flatness of the entire plaster layer and the squareness of the corresponding opening of the junction box. Attached Figure Description

[0021] Figure 1 These are side views of the components in this invention;

[0022] Figure 2 This is a three-dimensional view of each component from the right side in this invention;

[0023] Figure 3 This is a three-dimensional view of each component from the right side in this invention;

[0024] Figure 4 This is a schematic diagram of the magnetic suction plate installation and the assembly of the template bottom box and template front box in this invention;

[0025] Figure 5 This is a schematic diagram illustrating the operation of the formwork base box and formwork face box during plastering;

[0026] Figure 6 A schematic diagram showing the finished sealing of the junction box;

[0027] In the diagram: 1 junction box, 2 magnetic plate, 3 template bottom box, 4 template front box, 5 diamond-shaped adjustable support, 6 adjusting bolt, 7 pull tab, 8 magnetic spring, 9 magnet, 10 wall, 11 plaster layer. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Reference Figure 1-6 The present invention provides a protective device for the plastering end of a junction box, comprising a junction box 1, and further comprising,

[0031] Magnetic suction plate 2, which covers the opening of the junction box 1 to prevent mortar from entering the junction box 1;

[0032] A support member, which can be detachably installed in the junction box 1 to fix the magnetic plate 2;

[0033] The template base box 3 has an opening at one end and a magnet 9 that cooperates with the magnetic suction plate 2 installed inside. The other end of the template base box 3 is attached to the magnetic suction plate 2 via the magnet 9; and...

[0034] Template face box 4 is slidably installed inside the template base box 3 from one open end, and moves into the template base box 3 when subjected to the force of a plastering tool or a leveling tool.

[0035] When installing junction box 1 and plastering the exterior wall surface of junction box 1, first install junction box 1 in the pre-drilled mounting hole on the wall and ensure it is fixed; place the support inside junction box 1 and fix it, then cover the opening of junction box 1 with magnetic plate 2 and connect it to the support. Attach template base box 3 to the magnetic plate 2 at the opening of the pre-embedded junction box 1, ensuring it is completely aligned with the opening. Install template face box 4 in template base box 3. Then begin plastering. During plastering, when the trowel or leveling rod contacts template face box 4, the template face box 4 will slide into template base box 3 under pressure. At this time, the combined thickness of template base box 3 and template face box 4 will be consistent with the thickness of plaster layer 11, and will not obstruct the movement trajectory of the trowel and leveling rod. Thus, template base box 3 and template face box 4 form a protective cover structure outside junction box 1. This protective cover structure moves under force, ensuring that the combined thickness of template base box 3 and template face box 4 is consistent with the thickness of plaster layer 11, guaranteeing the flatness of plaster layer 11. After the wall surface is plastered and smoothed, the template bottom box 3 and template front box 4 are removed from the plaster layer 11. Then, the magnetic suction plate 2 that fixes the opening of the junction box 1 and the support inside the junction box 1 are removed, thus leaving a square plaster finish at the opening of the junction box 1.

[0036] Reference Figure 2 In a preferred embodiment, the cross-sectional area of ​​the template base box 3 is equal to the cross-sectional area of ​​the wire box 1. This ensures that the template base box 3 and the wire box 1 completely overlap, thereby guaranteeing the squareness of the final plastering finish.

[0037] Reference Figure 1 and 5 In a preferred embodiment, the thickness of the template face box 4 is less than or equal to the thickness of the template bottom box 3, and the thickness of the template bottom box 3 is less than the thickness of the final plaster layer 11. The sum of the thicknesses of the template bottom box 3 and the template is greater than the thickness of the final plaster layer 11. It should be noted that the thickness of the template bottom box 3 is less than the thickness of the final plaster layer 11, and the thickness of the template face box 4 is less than the thickness of the template bottom box 3. Therefore, excessive thickness of the template bottom box 3 and the template face box 4 will not result in wasted mortar after the final plaster layer 11. Furthermore, the sum of the thicknesses of the template bottom box 3 and the template is greater than the thickness of the final plaster layer 11, ensuring that during plastering, the two form a protective cover outside the template box 1 that can move and adjust according to force, guaranteeing the flatness and squareness of the final plaster finish.

[0038] Reference Figure 1 and 3 In a preferred embodiment, one end of the template face box 4 is open, and a magnetic suction spring piece 8 corresponding to the magnet 9 is installed inside the template face box 4. The open end of the template face box 4 is installed in the template bottom box 3. In this embodiment, both the template bottom box 3 and the template face box 4 have openings at their corresponding ends, such as... Figure 1The template base box 3 shown has an opening at its right end, and the template face box 4 has an opening at its left end. The left end of the template face box 4 slides into the right end of the template base box 3. The template face box 4 is equipped with a magnetic spring piece 8 inside. When the template face box 4 is inserted into the template base box 3, the magnetic spring piece 8 attracts the magnet 9, thus combining the template base box 3 and the template face box 4 together. Furthermore, by providing the magnetic spring piece 8, when the template face box 4 is subjected to pressure, the magnetic spring piece 8 is compressed, and the template face box 4 slides into the template base box 3; when the external force disappears, the template face box 4 slides outward under the action of the magnetic spring piece 8, ensuring the flatness and squareness of the plaster finishing.

[0039] Reference Figure 3 and 4 In a preferred embodiment, when the magnetic ferrule 8 is fully extended, the open end of the template face box 4 coincides with the open end of the template bottom box 3; when the magnetic ferrule 8 is fully compressed, the closed end of the template face box 4 coincides with the open end of the template bottom box 3. It should be understood that the above-mentioned coincidence refers to the corresponding ends of the template face box 4 and the template bottom box 3 reaching a flush state.

[0040] Reference Figure 1 and 2 In a preferred embodiment, the support member is a rhomboid adjustable support member 5 with adjusting bolts 6. It should be understood that the support member selected in this embodiment is a commonly used cable box 1 repairer in the prior art. The adjusting bolts 6 can adjust the vertical width of the rhomboid adjustable support member 5 to provide support and fixation in the cable box 1.

[0041] Reference Figure 1-5 In a preferred embodiment, the template base box 3 is provided with a pull tab 7 for separating the template base box 3 from the magnetic suction plate 2. The pull tab 7 is provided on the inner side wall of the template base box 3, preferably made of a soft material such as fabric, and has openings. After plastering is completed, the entire template base box 3 and template face box 4 are pulled out by hooking the pull tab 7 with a hook.

[0042] In a preferred embodiment, the template base box 3 and the template face box 4 are made of plastic.

[0043] In a preferred embodiment, the magnetic plate 2 is a steel plate, and the magnet 9 is a powerful magnet.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A protective device for the plaster finishing of a junction box, comprising a junction box, characterized in that, It also includes, A magnetic suction plate covers the opening of the junction box to prevent mortar from entering the junction box; A support member, which can be detachably installed in the junction box to secure the magnetic plate; The template base box has an opening at one end and a magnet installed inside to cooperate with the magnetic plate. The other end is attached to the magnetic plate by the magnet. as well as, A template face box, which is slidably installed inside the template base box from one open end of the template base box, and moves into the template base box when subjected to the force of a plastering tool or a leveling tool; The cross-sectional area of ​​the template base box is equal to the cross-sectional area of ​​the wire box; the thickness of the template face box is less than or equal to the thickness of the template base box, and the thickness of the template base box is less than the thickness of the final plaster layer, and the sum of the thickness of the template base box and the template is greater than the thickness of the final plaster layer. One end of the template face box is open, and a magnetic plucking piece corresponding to the magnet is installed inside the template face box. The open end of the template face box is installed in the template bottom box. When the magnetic snap-fit ​​is fully extended, one end of the opening of the template face box coincides with one end of the opening of the template bottom box. When the magnetic detachable sheet is fully compressed, the closed end of the template face box coincides with the open end of the template bottom box.

2. The protective device for the plastering edge of a junction box according to claim 1, characterized in that, The support is a diamond-shaped adjustable support with adjusting bolts.

3. The protective device for the plastering edge of a junction box according to claim 1, characterized in that, The template base box is provided with a pull tab to separate the template base box from the magnetic plate.

4. The protective device for the plastering edge of a junction box according to claim 1, characterized in that, The template base box and template face box are made of plastic.

5. The protective device for the plastering edge of a junction box according to claim 1, characterized in that, The magnetic plate is a steel plate, and the magnet is a powerful magnet.

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