Double-open switch with fireproof and flame-retardant functions

Abstract

The utility model belongs to switch technical field especially a kind of double-open switch of fire-retardant function, to the insufficient fire-retardant performance of existing double-open switch, lack special protection structure, flame high temperature is vulnerable to internal, cause fire spread, and with wall body poor seal, smoke hot air is vulnerable to invasion aggravate damage, present and propose following scheme, including installation frame, two switch assemblies are symmetrically arranged in the installation frame, the switch assembly includes the panel of the first buckle assembly and the installation frame clamping, in the utility model, double anchoring is formed by protection component, improves the stability of connection, blocks flame high temperature, cooperates fire-retardant sealing ring and reduces smoke invasion;First buckle component and second buckle component realize quick clamping, simplify assembly and disassembly and maintenance, avoid bolt high temperature rusting;Precise installation is carried out through positioning component, prevent fire-retardant sealing ring from deviating, ensure sealing stability, enhance fireproof reliability.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a double switch with fireproof and flame-retardant function. Background Technology

[0002] Double switches, as commonly used electrical control components, are widely used in various buildings such as homes and commercial spaces to achieve independent control of two different circuits or electrical appliances. Their structure typically includes a mounting frame, panel, base, rocker arm, and other components, which work together mechanically to switch the circuit on and off.

[0003] However, existing double-pole switches have significant shortcomings in fire resistance and flame retardancy. Most switches lack dedicated protective structures, and in the event of a fire, flames and high temperatures can directly affect the internal circuits and components of the switch, causing plastic parts to melt and carbonize, leading to short circuits and the spread of fire along the circuit, or even causing the fire to spread further. At the same time, the sealing performance between the switch and the wall is poor, and smoke and high-temperature gases generated by the fire can easily enter the switch through gaps, further aggravating the damage. Therefore, we propose a fire-resistant and flame-retardant double-pole switch to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing double-pole switches, such as insufficient fire resistance and flame retardancy, lack of specialized protective structure, easy damage to the interior due to high flame temperatures leading to fire spread, poor sealing with walls, and easy intrusion of smoke and heat, which exacerbates the damage. Therefore, this utility model proposes a double-pole switch with fire resistance and flame retardancy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fire-resistant and flame-retardant double switch, including a mounting frame,

[0007] Two switch assemblies are symmetrically arranged inside the mounting frame. Each switch assembly includes a panel that is snapped into the mounting frame by a first snap-fit ​​assembly. A base is snapped into one side of the panel by a second snap-fit ​​assembly, and a wire through hole communicating with the inside of the base is provided on the panel.

[0008] A rocker arm is rotatably provided at the opening of the panel;

[0009] The mounting frame is provided with a protective component, including a protective shell. The mounting frame and the protective shell have coaxial threaded holes at corresponding positions. Bolts pass through the threaded holes and are connected to the wall mounting base to form a double anchoring structure.

[0010] A positioning component is provided on one side of the protective shell. The positioning component includes two positioning rods fixedly disposed on the side of the protective shell near the mounting frame and a flame-retardant sealing ring. The flame-retardant sealing ring is embedded in an annular sealing groove opened on the surface of the mounting frame, and the positioning rods pass through the flame-retardant sealing ring and are inserted into the positioning holes opened in the mounting frame.

[0011] In one possible design, the first snap-fit ​​assembly includes two mounting plates fixed to the inner walls of the top and bottom of the mounting frame. The top and bottom of the panels are provided with first snap-fits, and the mounting plates are provided with slots that engage with the first snap-fits.

[0012] In one possible design, the second snap-fit ​​assembly includes four second snaps symmetrically arranged on the sidewall of the panel, and the base has snap-fit ​​blocks on both sides that engage with the second snaps.

[0013] In one possible design, the rocker is rotatably connected to the panel via a pivot, the two ends of which are embedded in flame-retardant bearing grooves in the panel.

[0014] In one possible design, the flame-retardant sealing ring has a positioning rod through-hole for the positioning rod to pass through.

[0015] In one possible design, a fixing seat is fixedly connected to the inner side of the rocker, the fixing seat is fitted with an LED light, and the rocker has a through hole and a lampshade is fixedly installed to cover the through hole.

[0016] In one possible design, the mounting frame, mounting plate, panel, rocker arm, and base are made of UL94 V-0 flame-retardant polycarbonate, and the protective shell is made of galvanized steel sheet.

[0017] In this application, during installation, the base is snapped onto the panel by the second snap-fit ​​assembly. The second snap-fit ​​engages with the clip on the base to complete the connection between the base and the panel. At this time, the wire hole on the panel is connected to the inside of the base, which facilitates the installation of wires. Subsequently, the panel is snapped onto the mounting frame by the first snap-fit ​​assembly. The first snap-fit ​​engages with the slot on the mounting plate to achieve quick fixation of the panel and the mounting frame.

[0018] Next, align the positioning rod on the protective shell with the positioning hole on the mounting frame and insert it. The positioning component ensures the precise alignment of the protective shell and the mounting frame, so that the flame-retardant sealing ring fits snugly with the mounting frame, enhancing the sealing between the two and reducing the intrusion of smoke and high-temperature gas. Then, use bolts to fix the mounting frame and the protective shell to the pre-set mounting base on the wall using the corresponding threaded holes on the mounting frame and the protective shell.

[0019] During use, rotating the rocker allows for circuit switching. The rocker's rotating design on the panel ensures flexible switch control. In the event of a fire, the protective shell prevents external flames and high temperatures from directly contacting the internal components, while the flame-retardant sealing ring further prevents flames and smoke from entering through gaps, thus achieving fireproof and flame-retardant functions.

[0020] Beneficial effects: In this utility model, the fireproof and flame-retardant double switch, by setting protective components, forms a double mechanical anchoring structure between the protective shell and the mounting frame, which improves the stability of the connection between the switch and the wall and prevents loosening under high temperature or external force. At the same time, the protective shell can effectively block external flames and high temperature from directly contacting the internal components of the switch. With the flame-retardant sealing ring, it can reduce the intrusion of smoke and high temperature gases and enhance the fireproof and flame-retardant ability of the switch.

[0021] In this utility model, the fireproof and flame-retardant double switch achieves quick snap-fit ​​connection between the panel and the mounting frame, and between the panel and the base, through the first snap-fit ​​component and the second snap-fit ​​component. This simplifies the installation and disassembly process and facilitates later maintenance and replacement. Compared with the traditional bolt connection method, the snap-fit ​​connection not only saves installation time, but also avoids the problem of disassembly difficulties caused by the melting and adhesion of metal bolts to plastic threaded holes under high temperature in a fire, thus improving the convenience of operation.

[0022] In this utility model, the fire-retardant double switch uses a positioning component to make the installation of the protective shell and the mounting frame more precise. The cooperation between the positioning rod and the positioning hole ensures the accurate relative position between the two, avoiding installation misalignment that affects the protective effect. At the same time, the positioning rod limits the flame-retardant sealing ring, preventing it from shifting during use, ensuring the stability of the sealing performance, and further enhancing the fire-retardant reliability of the switch.

[0023] In this invention, a double anchoring is formed by protective components to improve connection stability and block high temperatures of flames, while a flame-retardant sealing ring reduces smoke intrusion; the first and second snap-fit ​​components enable quick snapping, simplifying assembly, disassembly, and maintenance, and preventing bolts from rusting at high temperatures; the positioning components ensure precise installation, preventing the flame-retardant sealing ring from shifting, ensuring a stable seal, and enhancing fire resistance reliability. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a double-pole switch with fire-retardant function proposed in this utility model.

[0025] Figure 2 This is a partial explosion-proof three-dimensional structural diagram of a fire-resistant and flame-retardant double switch proposed in this utility model.

[0026] Figure 3This is a three-dimensional structural diagram of the panel and base of a fire-resistant and flame-retardant double switch proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the partial explosion three-dimensional structure of the rocker arm of a double-opening switch with fireproof and flame-retardant function proposed in this utility model.

[0028] In the diagram: 1. Mounting frame; 2. Mounting plate; 201. Slot; 3. Panel; 301. First clip; 302. Second clip; 4. Rocker; 401. Through hole; 402. Lampshade; 5. Base; 6. Protective shell; 7. Flame-retardant sealing ring; 8. Positioning rod; 9. LED light; 10. Fixing base; 11. Threaded hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In one embodiment: Refer to Figure 1-4 A switch includes a mounting frame 1, inside which two switch assemblies are symmetrically arranged. Each switch assembly includes a panel 3, which is snapped onto the mounting frame 1 via a first snap-fit ​​assembly. The first snap-fit ​​assembly includes two mounting plates 2, which are respectively fixed to the top and bottom inner walls of the mounting frame 1. First snap-fits 301 are fixedly provided at both the top and bottom of the panel 3. The two mounting plates 2 have corresponding slots 201 on them, and the first snap-fits 301 engage with the corresponding slots 201. This snap-fit ​​connection enables quick fixing between the panel 3 and the mounting frame 1, saving installation time compared to traditional bolt connections and facilitating subsequent disassembly and maintenance.

[0031] A base 5 is attached to one side of panel 3 via a second snap-fit ​​assembly. The second snap-fit ​​assembly includes four second snaps 302, which are symmetrically arranged in pairs on the side of panel 3 near base 5. The base 5 has corresponding locking blocks on both sides. Each of the four second snaps 302 engages with its corresponding locking block. This snap-fit ​​method simplifies the installation and disassembly of panel 3 and base 5, avoiding the problem of bolts becoming difficult to remove due to rust at high temperatures. Panel 3 has wire holes that communicate with the interior of base 5, facilitating wire routing. A rocker arm 4 is located at the opening of panel 3. The rocker arm 4 is rotatably connected to panel 3 via a rotating shaft structure. Both ends of the rotating shaft are embedded in flame-retardant bearing grooves in panel 3. Rotating the rocker arm 4 allows for circuit switching, ensuring flexible switch control.

[0032] The mounting frame 1 is equipped with a protective component, which includes a protective shell 6. Both the mounting frame 1 and the protective shell 6 have two threaded holes 11. The threaded holes 11 on the mounting frame 1 and the threaded holes 11 on the protective shell 6 are coaxially corresponding. After being bolted through, they are fixedly connected to the mounting base pre-set on the wall, forming a double mechanical anchoring structure. This significantly improves the stability of the connection between the switch and the wall, and prevents loosening under high temperature or external force.

[0033] This application can be used in the field of switch technology, or in other fields applicable to this application.

[0034] In another embodiment: Reference Figure 2-4 Based on Embodiment 1, an improvement is made: a fire-retardant double-pole switch, applied in the field of switch technology. A positioning component is provided on one side of the protective housing 6. The positioning component includes two positioning rods 8 fixedly disposed on the side of the protective housing 6 near the mounting frame 1. The positioning component also includes positioning holes on the side of the mounting frame 1 near the protective housing 6 corresponding to the two positioning rods 8. The two positioning rods 8 are inserted into the corresponding positioning holes, making the installation of the protective housing 6 and the mounting frame 1 more precise, ensuring accurate relative positions between them, and avoiding installation misalignment that would affect the protective effect. A flame-retardant sealing ring 7 is provided on the side of the protective housing 6 near the mounting frame 1. One side of the flame-retardant sealing ring 7 is embedded in a sealing groove on one side of the mounting frame 1. Both positioning rods 8 penetrate the flame-retardant sealing ring 7, limiting its position and preventing misalignment during use, ensuring the stability of the sealing performance, and enhancing the fire-retardant reliability of the switch. Simultaneously, the flame-retardant sealing ring 7 reduces the intrusion of smoke and high-temperature gases, and the protective housing 6 effectively blocks external flames and high temperatures from directly contacting the internal components of the switch, further enhancing the switch's fire-retardant capability. The flame-retardant sealing ring 7 has a clearance hole for easy installation.

[0035] A mounting base 10 is fixedly connected to the rocker arm 4 near the base 5. An LED light 9 is mounted on the mounting base 10. A through hole 401 is provided on the rocker arm 4 to facilitate light transmission. A lampshade 402 is fixedly installed on the rocker arm 4 at the through hole 401. The mounting frame 1, mounting plate 2, panel 3, rocker arm 4, and base 5 are all made of high-grade flame-retardant polycarbonate engineering plastic, and the protective shell 6 is made of galvanized steel plate. These materials themselves have good fire-retardant properties, further improving the overall fire resistance of the switch.

[0036] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fire-resistant and flame-retardant double switch, comprising a mounting frame (1), characterized in that, The mounting frame (1) is symmetrically arranged with two switch components. The switch components include a panel (3) that is snapped into the mounting frame (1) by a first snap-fit ​​component. A base (5) is snapped into one side of the panel (3) by a second snap-fit ​​component. A wire through hole communicating with the inside of the base (5) is provided on the panel (3). A rocker arm (4) is rotatably provided at the opening of the panel (3); The mounting frame (1) is provided with a protective component, including a protective shell (6). The mounting frame (1) and the protective shell (6) are provided with coaxial threaded holes (11) at corresponding positions. Bolts pass through the threaded holes (11) and are connected to the wall mounting base to form a double anchoring structure. A positioning component is provided on one side of the protective shell (6). The positioning component includes two positioning rods (8) fixedly disposed on the side of the protective shell (6) near the mounting frame (1) and a flame-retardant sealing ring (7). The flame-retardant sealing ring (7) is embedded in an annular sealing groove opened on the surface of the mounting frame (1). The positioning rods (8) pass through the flame-retardant sealing ring (7) and are inserted into the positioning holes opened in the mounting frame (1).

2. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The first buckle assembly includes two mounting plates (2) fixed to the inner walls of the top and bottom of the mounting frame (1). The top and bottom of the panel (3) are provided with a first buckle (301). The mounting plate (2) has a slot (201) that engages with the first buckle (301).

3. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The second buckle assembly includes four second buckles (302) symmetrically arranged on the side wall of the panel (3), and the base (5) has buckle blocks on both sides that engage with the second buckles (302).

4. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The rocker (4) is rotatably connected to the panel (3) via a rotating shaft, and the two ends of the rotating shaft are embedded in the flame-retardant bearing grooves of the panel (3).

5. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The flame-retardant sealing ring (7) has a positioning rod through hole for the positioning rod (8) to pass through.

6. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The rocker (4) is fixedly connected to a fixing seat (10) on its inner side. The fixing seat (10) is fitted with an LED light (9). The rocker (4) has a through hole (401) and a lamp cover (402) is fixedly installed to cover the through hole (401).

7. A double-pole switch with fire-retardant function according to claim 1, characterized in that, The mounting frame (1), mounting plate (2), panel (3), rocker (4) and base (5) are made of UL94 V-0 flame-retardant polycarbonate, and the protective shell (6) is made of galvanized steel plate.

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