A switch box connection structure and method

Abstract

The present invention belongs to the technical field of switch boxes, and specifically relates to a switch box connection structure and method. It includes an embedded box, the front of the embedded box is open and a telescopic frame is movably inserted, a switch bottom plate is fixedly installed on the front of the telescopic frame, and a switch panel is snap-connected to the front of the switch bottom plate; on the left and right side walls and the top side wall of the front of the embedded box, an n-shaped groove is commonly penetrated, and a limiting plate is hermetically installed at the notch of the n-shaped groove. The limiting plate is an n-shaped plate and is movably fitted with the notch of the n-shaped groove; the present invention not only realizes the adjustable depth of the switch box when there is a depth difference between the embedded box and the wall surface after decoration, but also avoids problems such as the inability to use tools such as screwdrivers for disassembly in a narrow space; the present invention not only realizes the temporary deformation of the elastic inclined block to clamp the limiting block, but also can quickly release the limit so as to facilitate the automatic contraction and installation of the telescopic frame; the present invention not only does not hinder the contraction of the telescopic frame, but also realizes the automatic seamless installation of the switch box.

Description

Technical Field

[0001] The present invention belongs to the technical field of switch boxes, and particularly relates to a connection structure and method for a switch box. Background Art

[0002] A switch box is a device used to connect electrical equipment, usually made of metal or plastic materials, and contains components such as switches, sockets, and terminal blocks inside. Its main principle is to control the on and off of the circuit to achieve the flow or cut-off of the current, thereby controlling the start and stop of electrical equipment. The function of the switch box is to provide safe and convenient electrical connection and control, prevent the exposure of wires, and avoid the risk of electric shock. It is widely used in multiple fields such as household electricity, industrial equipment, building construction, and communication equipment, and is an essential part of electrical engineering.

[0003] Chinese Patent with application number 201410470630.5 discloses a switch box for installing an intelligent low-voltage metering and billing module. On the bottom cover of this patent, a left live wire terminal compartment A is provided on the left side of the circuit board mounting boss, and a live wire wiring groove is provided on the lower side of the circuit board mounting boss; the back of the partition pressing strip is mounted on the bottom cover, and the left live wire terminal compartment B corresponds to the left live wire terminal compartment A, the right live wire terminal compartment B corresponds to the right live wire terminal compartment A, and the transverse pressing strip covers the live wire wiring groove; the upper cover is mounted on the partition pressing strip, and the left neutral wire terminal compartment B corresponds to the left neutral wire terminal compartment A, the right neutral wire terminal compartment B corresponds to the right neutral wire terminal compartment A, and the neutral wire groove cover corresponds to the neutral wire wiring groove.

[0004] During the installation of the switch box, usually, the embedded box body is first fixed on the wall, and then the installation of the remaining switch components is carried out after the subsequent wall decoration is completed. Since there will be a depth difference between the wall decoration and the embedded box body after the wall decoration is completed, and the depth differences are not the same, it is not convenient for the installation of subsequent switch panels and other components, and the problem of depth difference always occurs in artificial embedding; at the same time, it is more troublesome to install the switch bottom plate later, it cannot be stably fixed, and there are often gaps between the switch bottom plate and the wall, which is not only not very beautiful but also has a risk of electric leakage; and when ordinary switch box components are damaged, tools such as screwdrivers are required for disassembly, but when there is a depth difference between the wall and the embedded box body, it is impossible to flexibly use tools for quick disassembly due to the narrow space after installation. Summary of the Invention

[0005] To solve the deficiencies existing in the prior art, the present invention provides a switch box connection structure and method. Through the cooperation of the limiting plate and the telescopic frame, the present invention not only realizes the adjustable depth of the switch box when there is a depth difference between the embedded box and the decorated wall surface, but also realizes quick disassembly, thus avoiding problems such as the inability to use tools such as screwdrivers for disassembly in a narrow space; through the cooperation of the embedded box and the telescopic frame, when there is a depth difference between the embedded box and the decorated wall surface, the telescopic of the telescopic frame can be controlled to ensure the effective installation of the switch bottom plate, thereby avoiding the influence of the depth difference on the installation of the switch box. At the same time, the installation of the switch bottom plate can be realized without manually fixing the telescopic frame; through the structural design of the limiting block and the movable cavity, the elastic inclined clamping block is temporarily deformed to clamp the limiting block, and at the same time, the limit can be quickly released to facilitate the automatic contraction and installation of the telescopic frame; through the cooperation of the similar n-shaped rod and the card slot, it can not only prevent the contraction of the telescopic frame during the automatic contraction and installation process when the installation square frame abuts against the wall surface, but also prevent the telescopic frame from being pulled out after the telescopic frame has completed contraction, thereby realizing the automatic seamless installation of the switch box.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A switch box connection structure includes an embedded box. The front of the embedded box is open and a telescopic frame is movably inserted. A switch bottom plate is fixedly installed on the front of the telescopic frame, and a switch panel is snap-connected to the front of the switch bottom plate;

[0008] The left and right side walls and the top side wall on the front of the embedded box are jointly penetrated and provided with an n-shaped groove. A limiting plate is hermetically installed at the notch of the n-shaped groove. The limiting plate is an n-shaped plate and is movably fitted with the notch of the n-shaped groove; a plug-in block is fixedly provided at the top of the back of the limiting plate, and a T-shaped notch is opened at the bottom of the plug-in block; a T-shaped block is vertically slidably connected in the T-shaped notch; a bayonet is opened at the top inside the embedded box, and the bayonet communicates with the n-shaped groove; when the limiting plate is fitted with the notch of the n-shaped groove, one end of the T-shaped block extends out and is clamped with the bayonet; a plurality of sliding holes are penetrated through the left and right sides of the limiting plate, and the telescopic frame is movably inserted into the sliding holes. The left and right sides and the top of the telescopic frame are all closed structures, and a through groove is penetrated through the top; a wire pipe is fixedly communicated with the middle of the bottom of the embedded box.

[0009] Further, an installation square frame is fixedly provided on the outer edge of the front opening of the telescopic frame. Installation plates are fixedly provided inside the left and right sides of the installation square frame, and threaded holes are opened on the installation plates; a plurality of sliding rods are fixedly connected to the back of the left and right sides of the installation square frame. The sliding rods are slidably connected with the corresponding sliding holes and the ends of the sliding rods are fixedly connected with bumps.

[0010] Further, a return spring is sleeved on the sliding rod located between the bump and the limiting plate. The two sides of the bottom of the installation square frame are symmetrically and movably installed with n-shaped rods. A plurality of elastic inclined blocks are uniformly fixed on the inner bottom of the n-shaped rods, and the inclination direction of the elastic inclined blocks faces the inside of the embedded box; on both sides of the bottom inside the embedded box, limiting blocks are symmetrically installed, and the limiting blocks are abutted against the inner bottom of the n-shaped rods.

[0011] Further, the limiting block includes an n-shaped block. Chutes are opened inside both ends of the n-shaped block, and second bumps are slidably connected to the chutes. The second bumps are fixedly connected to the second sliding rods; the second sliding rods pass through the ends of the n-shaped block and are arranged outward, and the ends of the second sliding rods are fixedly connected to the sliders together.

[0012] Two movable cavities are symmetrically opened inside the bottom of the embedded box. A pair of guide rods are fixedly connected inside the movable cavities. The through holes on the sliders are slidably connected to the corresponding guide rods.

[0013] Further, a pair of guide grooves and a receiving groove are communicated and opened at the top of the movable cavity, and the receiving groove is communicated with the guide grooves; the second sliding rods are located in the corresponding guide grooves, and the width of the receiving groove is greater than the thickness of the n-shaped block.

[0014] Further, a limiting spring is sleeved on the guide rod, and the limiting spring abuts the slider against the side far from the front of the embedded box; a second return spring is sleeved on the second sliding rod located in the chute.

[0015] Further, the two ends of the n-shaped rod are respectively a first clamping block and a second clamping block. The outer side of the first clamping block is a curved surface and the inner side is a flat surface; the second clamping block is an L-shaped structure; L-shaped notches are symmetrically opened on both sides of the bottom of the installation square frame, and the second clamping block is located in the corresponding L-shaped notches and is slidably connected up and down with the L-shaped notches;

[0016] A plurality of card slots are uniformly opened on the bottom surface of the embedded box directly below the n-shaped rod; one side of the card slot close to the front of the embedded box is a flat surface, and the side far from the front of the embedded box is a curved surface.

[0017] Further, the side length of the installation square frame is greater than the side length of the opening on the wall where the embedded box is located.

[0018] Further, the connecting components of the switch bottom plate are inserted into the front opening of the embedded box; a plurality of second threaded holes are opened on the switch bottom plate, and the second threaded holes and the threaded holes on the corresponding mounting plates are threadedly connected by screws.

[0019] A connection method using the above switch box connection structure includes the following steps:

[0020] S1. Pull out the telescopic frame and the limit plate, press the T-shaped block into the inside of the T-shaped slot, and insert the plug-in block of the limit plate into the slot of the n-shaped groove, so that one end of the T-shaped block extends out and is clamped with the bayonet. At this time, the limit plate is fitted with the slot of the n-shaped groove, and then release the telescopic frame;

[0021] S2. Install the embedded box and the telescopic frame on the wall. After decoration, there is a depth difference between the front of the embedded box and the wall surface. At this time, pull the telescopic frame to pull the telescopic frame out of the wall surface; then release the telescopic frame, and the elastic inclined catch block is clamped on the limit block to limit the telescopic frame. At this time, install the switch bottom plate on the front of the telescopic frame and install the wires;

[0022] S3. After installation, continue to pull the telescopic frame, so that the first catch block of the n-shaped rod-like pulls the n-shaped block to slide on the guide groove, so that the n-shaped block finally falls into the receiving groove; at this time, the n-shaped rod-like and the second catch block descend synchronously, so that the first catch block falls into the card slot; then release the telescopic frame, and under the reset action of the reset spring, the telescopic frame automatically shrinks into the embedded box, and the installation square frame abuts against the wall surface; at this time, it is impossible to manually pull the switch bottom plate, and the switch panel is buckled on the front of the switch bottom plate to complete the installation;

[0023] S4. When disassembly is required, disassemble the switch panel, then dial up the second catch block to release the clamping of the first catch block with the card slot, and then pull the telescopic frame to expose the through groove; then insert into the through groove and press the T-shaped block to release the clamping of the T-shaped block with the bayonet, realizing the detachment of the limit plate, so as to quickly disassemble.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) Through the cooperation of the limit plate and the telescopic frame, the present invention not only realizes the adjustable depth of the switch box when there is a depth difference between the embedded box and the wall surface after decoration, but also realizes quick disassembly, thus avoiding problems such as being unable to use tools such as screwdrivers for disassembly in a narrow space; specifically, the depth of the switch box is adjustable by sliding the telescopic frame on the limit plate. At the same time, when disassembly is required, disassemble the switch panel, then pull the telescopic frame to expose the through groove; then insert into the through groove and press the T-shaped block to release the clamping of the T-shaped block with the bayonet, realizing the detachment of the limit plate, so as to quickly disassemble and avoid problems such as being unable to use tools such as screwdrivers for disassembly in a narrow space.

[0026] (2) Through the cooperation of the embedded box and the telescopic frame in the present invention, when there is a depth difference between the embedded box and the wall surface after decoration, the telescopic frame can be controlled to expand and contract to ensure the effective installation of the switch bottom plate, thereby avoiding the influence of the depth difference on the installation of the switch box. At the same time, the installation of the switch bottom plate can be achieved without manually fixing the telescopic frame. Specifically, when the embedded box and the telescopic frame are installed on the wall and a depth difference occurs between the front of the embedded box and the wall surface after decoration, the telescopic frame is pulled at this time. Under the guiding action of the sliding rod, the reset spring is compressed and the telescopic frame is pulled out, so that the telescopic frame extends out of the wall surface, facilitating the installation of the switch bottom plate and avoiding the influence of the depth difference on the installation of the switch box. At the same time, when the telescopic frame is pulled out, the n-shaped rod-like is pulled synchronously. When the telescopic frame extends out of the wall surface, the telescopic frame is released. At this time, an elastic inclined clamping block at the bottom of the n-shaped rod-like will deform and clamp the limiting block, so that the telescopic frame is temporarily limited and fixed, facilitating the subsequent installation of the switch bottom plate. The installation of the switch bottom plate can be achieved without manually fixing the telescopic frame.

[0027] (3) Through the structural design of the limiting block and the movable cavity in the present invention, not only can the elastic inclined clamping block be temporarily deformed to clamp the limiting block, but also the limit can be quickly released to facilitate the automatic contraction and installation of the telescopic frame. Specifically, when the elastic inclined clamping block clamps the limiting block, after the switch bottom plate and the wires are installed, only need to continue to pull the telescopic frame, so that the first clamping block of the n-shaped rod-like pulls the n-shaped block to slide on the guiding groove, so that the n-shaped block finally falls into the accommodating groove. At this time, the n-shaped block releases the limit on the n-shaped rod-like, and the n-shaped rod-like descends synchronously. Then the telescopic frame is released. At this time, under the reset action of the reset spring, the telescopic frame automatically contracts into the embedded box, and the installation square frame abuts against the wall surface to achieve automatic contraction and installation.

[0028] (4) Through the cooperation of the n-shaped rod-like and the card slot in the present invention, it can not only prevent the contraction of the telescopic frame during the process of the installation square frame abutting against the wall surface to achieve automatic contraction and installation, but also prevent the telescopic frame from being pulled out after the telescopic frame has contracted, thereby realizing the automatic seamless installation of the switch box. Specifically, when the telescopic frame automatically contracts into the embedded box under the reset action of the reset spring, the curved outer side surface of the first clamping block will not produce a limiting effect with the curved surface of the card slot, and the n-shaped rod-like will continuously rise and fall in a cycle, so that it can prevent the contraction of the telescopic frame during the process of the installation square frame abutting against the wall surface to achieve automatic contraction and installation. At the same time, after the installation is completed, when the switch bottom plate is pulled again, since the flat inner side surface of the first clamping block produces a limit with the flat surface of the card slot, the switch bottom plate cannot be pulled, so that under the reset action of the reset spring, the installation square frame tightly abuts against the wall surface to realize the automatic seamless installation of the switch box. Description of the Drawings

[0029] Figure 1 It is the overall structural schematic diagram of a switch box connection structure of the present invention;

[0030] Figure 2Schematic diagram of the dispersion structure of a connection structure of a switch box according to the present invention;

[0031] Figure 3 Partial dispersion structure schematic of a connection structure of a switch box according to the present invention Figure 1 ;

[0032] Figure 4 Schematic diagram of the telescopic frame structure of a connection structure of a switch box according to the present invention;

[0033] Figure 5 Partial dispersion structure schematic of a connection structure of a switch box according to the present invention Figure 2 ;

[0034] Figure 6 Schematic diagram of the partial cross-sectional structure of the embedded box and the limiting plate of a connection structure of a switch box according to the present invention;

[0035] Figure 7 Partial structure schematic of a connection structure of a switch box according to the present invention;

[0036] Figure 8 Schematic diagram of the n-type rod-like structure of a connection structure of a switch box according to the present invention;

[0037] Figure 9 Schematic diagram of the cross-sectional structure of the limiting block and the movable cavity of a connection structure of a switch box according to the present invention;

[0038] Figure 10 Schematic diagram of the dispersion structure of the limiting block of a connection structure of a switch box according to the present invention.

[0039] The reference numerals are as follows:

[0040] 100 - embedded box, 110 - wire pipe, 120 - n-type groove, 121 - bayonet, 130 - guiding groove, 140 - accommodating groove, 150 - movable cavity, 160 - clamping groove, 200 - switch panel, 300 - switch base plate, 310 - second threaded hole, 400 - telescopic frame, 410 - n-type rod-like structure, 411 - first clamping block, 412 - second clamping block, 413 - elastic inclined clamping block, 420 - through groove, 430 - installation square frame, 431 - installation plate, 432 - L-shaped notch, 450 - sliding rod, 451 - convex block, 460 - return spring, 500 - limiting plate, 510 - sliding hole, 520 - inserting block, 530 - T-shaped notch, 540 - T-shaped block, 600 - limiting block, 610 - n-type block, 611 - sliding groove, 620 - sliding block, 621 - through hole, 630 - second sliding rod, 631 - second convex block, 640 - second return spring, 650 - guiding rod, 660 - limiting spring. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] Although the steps in the present invention are arranged with reference numerals, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It can be understood that the term "and / or" used herein relates to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] Embodiment

[0044] As Figures 1 to 10 shown, a switch box connection structure includes an embedded box 100. The front of the embedded box 100 is open and a telescopic frame 400 is movably inserted. A switch bottom plate 300 is fixedly installed on the front of the telescopic frame 400, and a switch panel 200 is snap-connected to the front of the switch bottom plate 300;

[0045] On the left and right side walls and the top side wall of the front of the embedded box 100, an n-shaped groove 120 is commonly penetrated. A limiting plate 500 is hermetically installed at the notch of the n-shaped groove 120. The limiting plate 500 is an n-shaped plate and is movably fitted with the notch of the n-shaped groove 120. A plugging block 520 is fixedly provided at the top of the back of the limiting plate 500. A T-shaped notch 530 is opened at the bottom of the plugging block 520. A T-shaped block 540 is vertically slidably connected in the T-shaped notch 530. A clamping notch 121 is opened at the top inside the embedded box 100, and the clamping notch 121 communicates with the n-shaped groove 120. When the limiting plate 500 is fitted with the notch of the n-shaped groove 120, one end of the T-shaped block 540 extends out and is clamped with the clamping notch 121. A plurality of sliding holes 510 are penetrated through both the left and right sides of the limiting plate 500. The telescopic frame 400 is movably inserted through the sliding holes 510. The left and right sides and the top of the telescopic frame 400 are all closed structures, and a through groove 420 is penetrated through the top. A wire pipe 110 is fixedly communicated with the middle of the bottom of the embedded box 100.

[0046] Through the cooperation of the limiting plate 500 and the telescopic frame 400, the present invention not only realizes the adjustable depth of the switch box when there is a depth difference between the embedded box 100 and the wall surface after decoration, but also realizes quick disassembly, thus avoiding problems such as the inability to use tools such as screwdrivers for disassembly in a narrow space. Specifically, the adjustable depth of the switch box is realized by the telescopic frame 400 sliding on the limiting plate 500. At the same time, when disassembly is required, the switch panel 200 is disassembled, and then the telescopic frame 400 is pulled to expose the through groove 420. Then, by inserting into the through groove 420 and pressing the T-shaped block 540, the T-shaped block 540 is disengaged from the bayonet 121, realizing the detachment of the limiting plate 500, thus achieving quick disassembly and avoiding problems such as the inability to use tools such as screwdrivers for disassembly in a narrow space.

[0047] It is worth noting that through the cooperation of the embedded box 100 and the telescopic frame 400, when there is a depth difference between the embedded box 100 and the wall surface after decoration, the telescopic of the telescopic frame 400 can be controlled to ensure the effective installation of the switch bottom plate 300, thus avoiding the influence of the depth difference on the installation of the switch box. At the same time, the installation of the switch bottom plate 300 can be realized without manually fixing the telescopic frame 400. A detailed description will be given later.

[0048] Furthermore, on the outer edge of the front opening of the telescopic frame 400, an installation square frame 430 is fixedly provided. Inside the left and right sides of the installation square frame 430, installation plates 431 are fixedly provided, and threaded holes are provided on the installation plates 431. On the back of the left and right sides of the installation square frame 430, a plurality of sliding rods 450 are fixedly connected. The sliding rods 450 are slidably connected with the corresponding sliding holes 510, and the ends of the sliding rods 450 are fixedly connected with convex blocks 451.

[0049] By sliding the sliding rods 450 and the corresponding sliding holes 510, the telescopic distance of the telescopic frame 400 is changed. The convex blocks 451 play a limiting role to prevent the sliding rods 450 from disengaging from the sliding holes 510.

[0050] Even further, a return spring 460 is sleeved on the sliding rods 450 between the convex blocks 451 and the limiting plate 500. On both sides of the bottom of the installation square frame 430, class n-shaped rods 410 are symmetrically and movably installed. On the inner bottom of the class n-shaped rods 410, a plurality of elastic inclined clamping blocks 413 are uniformly fixedly provided. The inclined direction of the elastic inclined clamping blocks 413 faces the inside of the embedded box 100. On both sides of the bottom inside the embedded box 100, limiting blocks 600 are symmetrically installed, and the limiting blocks 600 abut against the inner bottom of the class n-shaped rods 410.

[0051] When the embedded box 100 and the telescopic frame 400 are installed on the wall, and there is a depth difference between the front surface of the embedded box 100 and the wall surface after decoration, at this time, the telescopic frame 400 is pulled. Under the guiding action of the sliding rod 450, the return spring 460 is compressed and the telescopic frame 400 is pulled out, so that the telescopic frame 400 extends out of the wall surface, thus facilitating the installation of the switch bottom plate 300 and avoiding the influence of the depth difference on the installation of the switch box. At the same time, when the telescopic frame 400 is pulled out, the n-shaped rod 410 is pulled synchronously. When the telescopic frame 400 extends out of the wall surface, the telescopic frame 400 is released. At this time, an elastic inclined clamping block 413 at the bottom of the n-shaped rod 410 will deform and clamp the limiting block 600, so that the telescopic frame 400 is temporarily limited and fixed, facilitating the subsequent installation of the switch bottom plate 300, and the installation of the switch bottom plate 300 can be realized without manually fixing the telescopic frame 400.

[0052] It should be noted that the elastic inclined clamping block 413 is made of a material with a certain elastic deformation, such as hard rubber, etc. It can not only have a certain degree of deformation but also be used for limiting and clamping, and will not be described in detail here.

[0053] Furthermore, the limiting block 600 includes an n-shaped block 610. Two sliding grooves 611 are opened inside both ends of the n-shaped block 610. A second convex block 631 is slidably connected to the sliding groove 611. The second convex block 631 is fixedly connected to a second sliding rod 630. The second sliding rod 630 passes through the end of the n-shaped block 610 and extends outward, and the ends of the second sliding rods 630 are fixedly connected to a slider 620 together.

[0054] Two movable cavities 150 are symmetrically opened inside the bottom of the embedded box 100. A pair of guide rods 650 are fixedly connected inside the movable cavities 150. A through hole 621 on the slider 620 is slidably connected to the corresponding guide rod 650. The guide rods 650 improve the sliding stability of the slider 620.

[0055] Furthermore, a pair of guide grooves 130 and a receiving groove 140 are communicated and opened at the top of the movable cavity 150. The receiving groove 140 is communicated with the guide groove 130. The second sliding rod 630 is located in the corresponding guide groove 130. The width of the receiving groove 140 is greater than the thickness of the n-shaped block 610.

[0056] Through the structural design of the limit block 600 and the movable cavity 150, the present invention not only realizes the temporary deformation of the elastic inclined clamping block 413 to clamp the limit block 600, but also can quickly release the limit to facilitate the automatic contraction and installation of the telescopic frame 400; specifically, when the elastic inclined clamping block 413 clamps the limit block 600, after installing the switch bottom plate 300 and the electric wire, only need to continue to pull the telescopic frame 400, so that the first clamping block 411 of the n-type-like rod 410 pulls the n-type block 610 to slide on the guide groove 130, so that the n-type block 610 finally falls into the accommodating groove 140; at this time, the n-type block 610 releases the limit on the n-type-like rod 410, and the n-type-like rod 410 synchronously descends; then release the telescopic frame 400, at this time, under the reset action of the reset spring 460, the telescopic frame 400 automatically contracts into the embedded box 100, and makes the installation square frame 430 abut against the wall surface to realize automatic contraction and installation.

[0057] It should be noted that the n-type-like rod 410 is movably installed on both sides of the bottom of the installation square frame 430, so it can realize synchronous descent, which will not be described in detail here.

[0058] Furthermore, a limit spring 660 is sleeved on the guide rod 650, and the limit spring 660 abuts the slider 620 on the side away from the front surface of the embedded box 100; a second reset spring 640 is sleeved on the second slide rod 630 located in the chute 611.

[0059] With the assistance of the limit spring 660, it is convenient to initially limit the slider 620, so as to prevent the n-type block 610 from being accidentally driven to move when the telescopic frame 400 and the n-type-like rod 410 just extend out; with the assistance of the second reset spring 640, when the n-type block 610 is moved to directly above the accommodating groove 140, the second reset spring 640 can assist the n-type block 610 to quickly fall into the accommodating groove 140.

[0060] Furthermore, both ends of the n-type-like rod 410 are a first clamping block 411 and a second clamping block 412 respectively. The outer side surface of the first clamping block 411 is a curved surface and the inner side surface is a plane; the second clamping block 412 is an L-shaped structure; L-shaped notches 432 are symmetrically opened on both sides of the bottom of the installation square frame 430, and the second clamping block 412 is located in the corresponding L-shaped notches 432 and is slidably connected up and down with the L-shaped notches 432;

[0061] A plurality of card slots 160 are evenly opened on the bottom surface of the embedded box 100 located directly below the n-type-like rod 410; one side of the card slot 160 close to the front surface of the embedded box 100 is a plane, and the side away from the front surface of the embedded box 100 is a curved surface.

[0062] Through the cooperation of the n-type rod 410 and the card slot 160, the present invention can not only prevent the shrinkage of the telescopic frame 400 from being hindered during the automatic shrinkage installation process when the installation square frame 430 abuts against the wall surface, but also prevent the telescopic frame 400 from being pulled out after the telescopic frame 400 has completed shrinking, thereby realizing the automatic seamless installation of the switch box. Specifically, when the telescopic frame 400 automatically shrinks into the embedded box 100 under the reset action of the reset spring 460, the curved outer side surface of the first clamping block 411 will not produce a limiting effect on the curved surface of the card slot 160, and the n-type rod 410 will continuously rise and fall in a cycle, so that the shrinkage of the telescopic frame 400 will not be hindered during the automatic shrinkage installation process when the installation square frame 430 abuts against the wall surface. At the same time, after the installation is completed, when the switch bottom plate 300 is pulled again, since the flat inner side surface of the first clamping block 411 produces a limit with the flat surface of the card slot 160, the switch bottom plate 300 cannot be pulled, so that under the reset action of the reset spring 460, the installation square frame 430 tightly abuts against the wall surface, realizing the automatic seamless installation of the switch box.

[0063] It should be noted that the second clamping block 412 is located in the corresponding L-shaped notch 432 and is not tightly fitted with the up-and-down sliding connection of the L-shaped notch 432. Therefore, the n-type rod 410 can continuously rise and fall in a cycle. The smoothness of the rise and fall can be improved through the design of specific dimensions, which is a conventional adjustment and will not be described in detail here. And the real-time state can be quickly understood by observing the position of the second clamping block 412 on the L-shaped notch 432.

[0064] Furthermore, the side length of the installation square frame 430 is greater than the side length of the opening of the wall surface where the embedded box 100 is located. Through this design, the installation square frame 430 tightly abuts against the wall surface, realizing seamless installation.

[0065] Furthermore, the connecting component of the switch bottom plate 300 is inserted into the inner part of the opening on the front side of the embedded box 100. A plurality of second threaded holes 310 are opened on the switch bottom plate 300, and the second threaded holes 310 are threadedly connected with the threaded holes on the corresponding mounting plate 431 through screws.

[0066] A connection method using the above switch box connection structure includes the following steps:

[0067] S1. Pull open the telescopic frame 400 and the limiting plate 500, press the T-shaped block 540 into the inside of the T-shaped notch 530, and insert the plug-in block 520 of the limiting plate 500 into the notch of the n-shaped notch 120, so that one end of the T-shaped block 540 extends out and is clamped with the bayonet 121. At this time, the limiting plate 500 is fitted with the notch of the n-shaped notch 120, and then the telescopic frame 400 is released;

[0068] S2. Install the embedded box 100 and the telescopic frame 400 on the wall. After decoration, there is a depth difference between the front of the embedded box 100 and the wall surface. At this time, pull the telescopic frame 400 to pull the telescopic frame 400 out of the wall surface; then release the telescopic frame 400, and the elastic inclined clamping block 413 is clamped on the limiting block 600 to limit the telescopic frame 400. At this time, install the switch bottom plate 300 on the front of the telescopic frame 400 and install the wires.

[0069] S3. Continue to pull the telescopic frame 400 after installation, so that the first clamping block 411 of the n-shaped rod 410 pulls the n-shaped block 610 to slide on the guide groove 130, so that the n-shaped block 610 finally falls into the accommodating groove 140; at this time, the n-shaped rod 410 and the second clamping block 412 drop synchronously, so that the first clamping block 411 falls into the clamping groove 160; then release the telescopic frame 400, and under the reset action of the reset spring 460, the telescopic frame 400 automatically shrinks into the embedded box 100, and the installation square frame 430 abuts against the wall surface; at this time, the switch bottom plate 300 cannot be pulled manually, and the switch panel 200 is buckled on the front of the switch bottom plate 300 to complete the installation.

[0070] S4. When disassembly is required, disassemble the switch panel 200, then push up the second clamping block 412 to release the clamping of the first clamping block 411 with the clamping groove 160, and then pull the telescopic frame 400 to expose the through groove 420; then insert into the through groove 420 and press the T-shaped block 540 to release the clamping of the T-shaped block 540 with the bayonet 121, realizing the separation of the limiting plate 500, so as to quickly disassemble.

[0071] When installing the switch bottom plate 300 by the connection method of the present invention, it is not necessary to ensure that the telescopic frame 400 is aligned with the wall surface. It is only necessary to pull the telescopic frame 400 out beyond the wall surface, which is convenient for the installation of the switch bottom plate 300 and avoids the problem of subsequent installation gaps; at the same time, when disassembly is required, disassemble the switch panel 200, and then pull the telescopic frame 400 to expose the through groove 420; then insert into the through groove 420 and press the T-shaped block 540 to release the clamping of the T-shaped block 540 with the bayonet 121, realizing the separation of the limiting plate 500, so as to quickly disassemble and avoid problems such as being unable to use tools such as screwdrivers for disassembly in a narrow space.

[0072] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several improvements and transformations can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A switch box connection structure, characterized in that, It includes an embedded box (100), the front of the embedded box (100) is open and a telescopic frame (400) is movably inserted therein, a switch bottom plate (300) is fixedly installed on the front of the telescopic frame (400), and a switch panel (200) is snap-connected to the front of the switch bottom plate (300). On the left and right side walls and the top side wall of the front of the embedded box (100), an n-shaped groove (120) is commonly penetrated and opened. A limiting plate (500) is fixedly installed at the notch of the n-shaped groove (120). The limiting plate (500) is an n-shaped plate and is movably fitted with the notch of the n-shaped groove (120). At the top of the back of the limiting plate (500), a plugging block (520) is fixedly provided. A T-shaped notch (530) is opened at the bottom of the plugging block (520). A T-shaped block (540) is vertically slidably connected in the T-shaped notch (530). A bayonet (121) is opened at the top inside the embedded box (100), and the bayonet (121) communicates with the n-shaped groove (120). When the limiting plate (500) is fitted with the notch of the n-shaped groove (120), one end of the T-shaped block (540) extends out and is snap-connected to the bayonet (121). A plurality of sliding holes (510) are penetrated through both the left and right sides of the limiting plate (500). The telescopic frame (400) is movably inserted through the sliding holes (510). The left and right sides and the top of the telescopic frame (400) are all closed structures, and a through groove (420) is penetrated through the top. A wire pipe (110) is fixedly communicated with the middle of the bottom of the embedded box (100).

2. The connection structure of a switch box according to claim 1, characterized in that, On the outer edge of the open front of the telescopic frame (400), an installation square frame (430) is fixedly provided. Inside the left and right sides of the installation square frame (430), installation plates (431) are fixedly provided, and threaded holes are opened on the installation plates (431). A plurality of sliding rods (450) are fixedly connected to the back of the left and right sides of the installation square frame (430). The sliding rods (450) are slidably connected with the corresponding sliding holes (510), and bumps (451) are fixedly connected to the ends of the sliding rods (450).

3. The connection structure of a switch box according to claim 2, wherein, A return spring (460) is sleeved on the sliding rod (450) between the bump (451) and the limiting plate (500). On both sides of the bottom of the installation square frame (430), n-shaped rods (410) are symmetrically and movably installed. A plurality of elastic inclined clamping blocks (413) are uniformly fixedly provided at the inner bottom of the n-shaped rods (410). The inclined direction of the elastic inclined clamping blocks (413) faces the inside of the embedded box (100). On both sides of the bottom inside the embedded box (100), limiting blocks (600) are symmetrically installed, and the limiting blocks (600) abut against the inner bottom of the n-shaped rods (410).

4. The connection structure of a switch box according to claim 3, wherein, The limiting block (600) includes an n-shaped block (610). Chutes (611) are formed inside both ends of the n-shaped block (610). A second convex block (631) is slidably connected to the chutes (611), and the second convex block (631) is fixedly connected to a second sliding rod (630). The second sliding rod (630) passes through the end of the n-shaped block (610) and extends outward, and the ends of the second sliding rod (630) are fixedly connected to a slider (620) together. Two movable cavities (150) are symmetrically formed inside the bottom of the embedded box (100). A pair of guide rods (650) are fixedly connected inside the movable cavities (150). Through holes (621) on the slider (620) are slidably connected to the corresponding guide rods (650).

5. The connection structure of a switch box according to claim 4, characterized in that, A pair of guide grooves (130) and a receiving groove (140) are communicated and formed at the top of the movable cavity (150), and the receiving groove (140) is communicated with the guide grooves (130). The second sliding rod (630) is located in the corresponding guide groove (130), and the width of the receiving groove (140) is greater than the thickness of the n-shaped block (610).

6. The connection structure of a switch box according to claim 5, characterized in that, A limiting spring (660) is sleeved on the guide rod (650), and the limiting spring (660) abuts the slider (620) against the side away from the front of the embedded box (100). A second return spring (640) is sleeved on the second sliding rod (630) located in the chute (611).

7. The connection structure of a switch box according to claim 6, wherein Both ends of the n-shaped rod-like block (410) are a first clamping block (411) and a second clamping block (412) respectively. The outer side of the first clamping block (411) is a curved surface and the inner side is a flat surface. The second clamping block (412) is an L-shaped structure. L-shaped notches (432) are symmetrically formed on both sides of the bottom of the installation square frame (430), and the second clamping block (412) is located in the corresponding L-shaped notches (432) and is slidably connected up and down with the L-shaped notches (432). A plurality of card slots (160) are evenly formed on the bottom surface of the embedded box (100) directly below the n-shaped rod-like block (410). The side of the card slot (160) close to the front of the embedded box (100) is a flat surface, and the side away from the front of the embedded box (100) is a curved surface.

8. The connection structure of a switch box according to claim 2, wherein, The side length of the installation square frame (430) is greater than the side length of the opening on the wall where the embedded box (100) is located.

9. The connection structure of a switch box according to claim 2, wherein, The connecting component of the switch bottom plate (300) is inserted into the front opening of the embedded box (100). A plurality of second threaded holes (310) are formed on the switch bottom plate (300), and the second threaded holes (310) are threadedly connected with the threaded holes on the corresponding mounting plate (431) through screws.

10. A connection method using the switch box connection structure according to claim 7, characterized in that, Including the following steps: S1. Pull open the telescopic frame (400) and the limiting plate (500), press the T-shaped block (540) into the inside of the T-shaped notch ( S2. Install the embedded box (100) and the telescopic frame (400) on the wall. After decoration, there is a depth difference between the front of the embedded box (100) and the wall surface. At this time, pull the telescopic frame (400) to pull the telescopic frame (400) out of the wall; then release the telescopic frame (400), and the elastic inclined clamping block (413) is clamped on the limiting block (600) to limit the telescopic frame (400). At this time, install the switch bottom plate (300) on the front of the telescopic frame (400) and install the wires; S3. After installation, continue to pull the telescopic frame (400) so that the first clamping block (411) of the n-shaped rod-like (410) pulls the n-shaped block (610) to slide on the guiding groove (130) until the n-shaped block (610) finally falls into the accommodating groove (140); at this time, the n-shaped rod-like (410) and the second clamping block (412) descend synchronously, so that the first clamping block (411) falls into the clamping groove (160); then release the telescopic frame (400), and under the reset action of the reset spring (460), the telescopic frame (400) automatically shrinks into the embedded box (100), and the installation square frame (430) abuts against the wall surface; at this time, the switch bottom plate (300) cannot be pulled manually, and the switch panel (200) is buckled on the front of the switch bottom plate (300) to complete the installation; S4. When disassembly is required, disassemble the switch panel (200), then dial the second clamping block (412) upwards to release the clamping connection between the first clamping block (411) and the clamping groove (160), and then pull the telescopic frame (400) to expose the through groove (420); then insert into the through groove (420) and press the T-shaped block (540) to release the clamping connection between the T-shaped block (540) and the bayonet (121), realizing the separation of the limiting plate (500), so as to achieve rapid disassembly.

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