Air-proof cassette

Abstract

The air-proof cassette comprises a box body, the box body is composed of a bottom plate and side plates arranged on the side walls of the bottom plate in a surrounding mode, grooves are formed in the two opposite sides of the outer portions of the side plates, second screws inserted from the top end of the box body are arranged in the grooves, the second screws extend to the bottom ends of the grooves, and short shafts extending inwards are arranged on the two sides of the bottom ends of the grooves. According to the air-proof cassette, the groove is formed in the outer side of the cassette body, the second screw inserted from the top end of the cassette body is arranged in the groove, the buckle is connected to the bottom of the second screw, the boss of the buckle abuts against the short shaft at the bottom of the groove, and the grabbing hook is arranged at the other end of the buckle. The boss is located in the groove, the grapnel abuts against the bottom of the box body, during use, the second screw is rotated, the boss rotates around the short shaft to drive the grapnel to turn upwards and outwards, and in the outward turning process, the grapnel continuously changes the angle and gradually grasps the wall; the air-proof cassette is simple in overall structure and convenient to install, and the investment cost is reduced.

Description

Technical Field

[0001] This utility model relates to a gas-proof dark box. Background Technology

[0002] Existing electrical accessory installation boxes are standard box structures, known internationally as gas-proof boxes. Gas-proof boxes are essential electrical auxiliary tools in building construction or various renovations. They serve to connect wires, ensure the transition of various electrical circuits, and protect the safety of the circuits. To maintain a clean and aesthetically pleasing wall surface, gas-proof boxes generally require pre-installation. During installation, they are secured to the wall with latches. The ends of the latches need to be flattened or subjected to other secondary processing to prevent them from falling off when retracted, thus increasing manufacturing costs. Utility Model Content

[0003] This utility model provides a gas-proof dark box.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] An airtight box includes a box body, which is composed of a base plate and side plates surrounding the side wall of the base plate. Grooves are provided on opposite sides of the outer side plates. A second screw is inserted into the groove from the top of the box body and extends to the bottom of the groove. Short shafts extending inward are provided on both sides of the bottom of the groove. A buckle is connected to the bottom of the groove. One end of the buckle is provided with a through hole that mates with the bottom of the second screw. The other end of the buckle is provided with a hook (43) located outside the short shaft (121).

[0006] Preferably, the top of the box body has fixing positions on both sides that cooperate with the socket.

[0007] Preferably, the fixing position secures the socket inside the gas-proof junction box using a first screw.

[0008] Preferably, the line connecting the two grooves is perpendicular to the line connecting the two fixed positions.

[0009] Preferably, the through hole is provided with an internal thread.

[0010] Preferably, the outer sides of the through hole are provided with bosses that cooperate with the short shaft. When the gas-proof box is not locked, the bosses are located inside the short shaft.

[0011] Preferably, a positioning post is also provided on the box body inside the groove.

[0012] Preferably, the lower end of the grab hook is provided with a positioning groove. When the gas-proof box is not locked, the grab hook abuts against the bottom of the box and faces outward, and the positioning groove cooperates with the positioning post.

[0013] Compared with existing technologies, this utility model of a gas-proof concealed box features a groove on the outside of the box body, with a second screw inserted from the top of the box body inside the groove. A buckle is connected to the bottom of the second screw, and the protrusion of the buckle abuts against the short shaft at the bottom of the groove. The other end of the buckle is equipped with a hook. When the gas-proof concealed box is not in use, the protrusion is located inside the groove and the hook abuts against the bottom of the box body. When in use, rotating the second screw causes the protrusion to rotate around the short shaft, driving the hook upward and outward. During the outward rotation, the hook continuously changes its angle and gradually grips the wall. The gas-proof concealed box has a simple overall structure, is easy to install, and reduces investment costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the gas-proof dark box of this utility model.

[0015] Figure 2 This is an exploded view of the gas-proof dark box of this utility model.

[0016] Figure 3 This is a partial schematic diagram of the gas-proof dark box of this utility model. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1 to 3 As shown, the gas-proof junction box includes a box body 1, which is composed of a base plate and side plates surrounding the side wall of the base plate. The top of the box body 1 has fixing positions 11 on opposite sides for cooperating with the socket. The fixing positions 11 fix the socket inside the gas-proof junction box by means of the first screw 2.

[0019] The opposite sides of the outer side plate are provided with grooves 12. The line connecting the two grooves 12 is perpendicular to the line connecting the two fixing positions 11. The groove 12 is provided with a second screw 3 inserted from the top of the box body 1. The second screw 3 extends to the bottom of the groove 12. Both sides of the bottom of the groove 12 are provided with short shafts 121 extending inward. The box body 1 inside the groove 12 is also provided with a positioning post 13.

[0020] The bottom end of the groove 12 is connected to a buckle 4. One end of the buckle 4 is provided with a through hole 41 that mates with the bottom end of the second screw 3. The through hole 41 is provided with an internal thread. On the opposite sides of the through hole 41, there are bosses 42 that mate with the short shaft 121. When the gas-proof box is not locked, the bosses 42 are located inside the short shaft 121. The other end of the buckle 4 is provided with a hook 43. The hook 43 is located outside the short shaft 121. The lower end of the hook 43 is provided with a positioning groove 44. When the gas-proof box is not locked, the hook 43 abuts against the bottom of the box body 1 and faces outward, and the positioning groove 44 mates with the positioning post 13. The positioning groove 44 and the positioning post 13 facilitate the positioning of the buckle 4 and the box body 1 during assembly.

[0021] When the gas-proof concealed box needs to be pre-embedded, it is placed inside the cavity and the second screw 3 is rotated. At this time, the boss 42 rotates around the short axis 121, which drives the hook 43 to move upward and outward. During the outward rotation, the hook 43 continuously changes its angle and gradually grips the wall. When the hook 43 rotates 180 degrees, the gripping force of the hook 43 is the strongest.

[0022] This utility model of a gas-proof concealed box features a groove 12 on the outside of the box body 1, with a second screw 3 inserted from the top of the box body 1 inside the groove 12. A buckle 4 is connected to the bottom of the second screw 3, with the protrusion 42 of the buckle 4 abutting against the short shaft 121 at the bottom of the groove 12. The other end of the buckle 4 is equipped with a hook 43. When the gas-proof concealed box is not in use, the protrusion 42 is located inside the groove 12 and the hook 43 abuts against the bottom of the box body 1. When in use, rotating the second screw 3 causes the protrusion 42 to rotate around the short shaft 121, driving the hook 43 upward and outward. During the outward rotation, the hook 43 continuously changes its angle and gradually grips the wall. The gas-proof concealed box has a simple overall structure, is easy to install, and reduces investment costs.

[0023] Finally, it should be noted that the above embodiments only illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas-proof cassette comprising a cassette body (1) consisting of a bottom plate and side plates surrounding the side walls of the bottom plate, characterized in that, The two opposite sides of the side plate outside are provided with grooves (12), the inside of the grooves (12) is provided with the second screw (3) inserted from the top end of the box body (1), the second screw (3) extends to the bottom end of the groove (12), the bottom end of the groove (12) is provided with the short shaft (121) extending inward on both sides; the bottom end of the groove (12) is connected and provided with the buckle (4), one end of the buckle (4) is provided with the through hole (41) matched with the bottom end of the second screw (3), the other end of the buckle (4) is provided with the grab hook (43), and the grab hook (43) is located outside the short shaft (121).

2. The gas-proof cassette according to claim 1, characterized in that The top end of the box body (1) is provided with the fixed position (11) matched with the socket on the two opposite sides.

3. The gas-proof cassette according to claim 2, characterized in that The fixed position (11) fixes the socket inside the gas-proof box through the first screw (2).

4. The gas-proof cassette according to claim 2, wherein The line between the two grooves (12) is perpendicular to the line between the two fixed positions (11).

5. The gas-proof cassette according to claim 1, wherein The inside of the through hole (41) is provided with an internal thread.

6. The gas-proof cassette according to claim 1, wherein The two opposite sides of the outside of the through hole (41) are provided with the boss (42) matched with the short shaft (121), and when the gas-proof box is not locked, the boss (42) is located inside the short shaft (121).

7. The gas-proof cassette according to claim 1, wherein The box body (1) inside the groove (12) is further provided with the positioning column (13).

8. The gas-proof cassette according to claim 7, characterized in that The lower end of the grab hook (43) is provided with the positioning groove (44), when the gas-proof box is not locked, the grab hook (43) abuts against the bottom of the box body (1) and is outward and the positioning groove (44) is matched with the positioning column (13).

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