Electrical junction box capable of being locked

Abstract

The utility model relates to the technical field of electrical junction boxes, and discloses a lockable electrical junction box, which comprises a shell, a connecting pipe is fixedly mounted on the outer side of the shell, a limiting frame is fixedly mounted above the shell, a connecting column is mounted at the lower end of the limiting frame in a penetrating manner, a limiting spring is fixedly mounted in the limiting frame, and the limiting spring is fixedly connected with the connecting pipe. The top end of the connecting column is fixedly provided with a movable pipe, the thickness of the pipe wall of the connecting pipe is six millimeters, the connecting pipe is symmetrically installed on the front face, the rear face, the left face and the right face of the shell, the connecting pipe penetrates through the shell, and the tail end of the connecting pipe is flush with the inner wall of the shell. The thickness of the pipe wall of the connecting pipe is changed, so that one end of the wiring pipe can be inserted into the connecting pipe or the outer side of the connecting pipe in an insertion manner, the wiring pipes of different sizes can be conveniently fixed in the manner, and the situation that the wiring pipes fall off in the assembling process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical junction boxes, in particular to a lockable electrical junction box. Background Art

[0002] The junction box is one of the electrical auxiliary materials, which plays the role of protecting and connecting wires. During the electrical construction process, it is usually necessary to perform wiring operations and use electrical junction boxes as transition devices. The wires in the wiring tube are connected in the electrical junction box, and the electrical junction box is usually placed in the installation hole of the wall.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN210898415U, which discloses an electrical junction box, including a box body, a top cover, and a bottom plate. The top cover is detachably arranged at the upper end of the box body, and the bottom plate is connected to the lower end of the box body. The box body is provided with multiple wiring ports on its circumference, and also includes a fixing device, which includes an adjusting screw, an adjusting screw, an adjusting pressure plate, multiple wedge-shaped fixing blocks, and multiple elastic members. The electrical junction box can be installed and disassembled by simply rotating the adjusting screw, which is very convenient for installation and disassembly and easy to use. In addition, the multiple wedge-shaped fixing blocks are fixed in contact with the hole wall of the mounting hole, which significantly improves the installation firmness. It is particularly suitable for when the area of ​​the mounting hole is larger than the area of ​​the electrical junction box. The structure is simple and conducive to promotion.

[0004] Existing electrical junction boxes generally have an opening structure on the outside of the junction box to connect to the wire protection tube. This method cannot adapt to wiring tubes of different diameters. At the same time, when in use, existing electrical junction boxes are generally connected to sockets or switches through screws at the four corners of the sockets or switches. The junction boxes are generally made of plastic. During the process of tightening the screws, the screw mounting holes of the junction box may be damaged due to excessive rotation of the screws, affecting the subsequent maintenance of the sockets and switches. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the existing technology, the present invention provides a lockable electrical junction box, which has the advantages of improving the adaptability range of the wiring tube and avoiding damage to the screw mounting holes, thereby solving the above-mentioned technical problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lockable electrical junction box, comprising: a shell, a connecting tube fixedly installed on the outside of the shell, a limiting frame fixedly installed on the top of the shell, a connecting column inserted into the lower end of the limiting frame, a limiting spring fixedly installed inside the limiting frame, a movable tube fixedly installed on the top of the connecting column, a limiting tube fixedly installed on the top of the movable tube, a base fixedly installed inside the shell, a limiting block movably installed above the base, a limiting ring is provided above the base and below the limiting block, a rubber block movably installed above the base, and a connecting bolt fixedly installed above the limiting block; the shell can protect the wires.

[0009] As an optimal technical solution of the present invention, a rectangular protrusion structure is provided at the top of the shell, the connecting tube is made of plastic, the wall thickness of the connecting tube is six millimeters, the connecting tube is symmetrically installed on the front, back, left and right sides of the shell, the connecting tube passes through the shell, and the end is flush with the inner wall of the shell; the connecting tube can facilitate the connection between the shell and the wiring tube.

[0010] As an optimal technical solution of the present invention, the four corners of the top of the shell are provided with an opening structure consistent with the outer diameter of the limiting tube, the limiting frame is fixedly installed below the opening structure at the four corners of the shell, and a sliding connection is formed between the connecting column and the limiting frame; the limiting frame can limit the position of the connecting column.

[0011] As an optimal technical solution of the present invention, the limit spring is located outside the connecting column, and the bottom end of the limit spring is fixedly connected to the limit frame, and the top end is fixedly connected to the movable tube; the limit spring can apply tension to the movable tube when stretched.

[0012] As an optimal technical solution of the present invention, a cylindrical protrusion structure is provided on the outer side of the movable tube, and a notch is provided on the top of the limit frame which is engaged with the protrusion structure on the outer side of the movable tube, so that a sliding connection is formed between the movable tube and the limit frame; the movable tube can prevent the limit tube from rotating.

[0013] As an optimal technical solution of the present invention, the limiting tube is located inside the quadrangular cylindrical opening of the shell, and a sliding connection is formed between the limiting tube and the shell. A depression with a half-columnar structure is provided on the left and right sides above the base and on the left and right sides below the limiting block; the inner wall of the limiting tube is provided with a threaded structure to facilitate the installation of the socket or switch on the top of the shell by screws.

[0014] As an optimal technical solution of the present invention, the limiting ring is arranged at the center of the base and the limit block recessed structure, the rubber block is a half-ring structure, and the rubber block is installed between the base and the limit block in a mirror-symmetrical manner up and down; the limiting ring can cause the rubber block to deform to increase the friction between the wires.

[0015] Compared with the prior art, the present invention provides a lockable electrical junction box with the following beneficial effects:

[0016] 1. The utility model provides a connecting tube made of plastic with a wall thickness of six millimeters. The connecting tubes are symmetrically mounted on the front, back, left, and right sides of the housing. The connecting tubes penetrate the housing, with the ends flush with the inner wall of the housing. When connecting the housing to the wiring tube, a heat melter can be used to melt the inner or outer wall of the connecting tube, thereby changing the wall thickness of the connecting tube so that one end of the wiring tube can be inserted into the interior or exterior of the connecting tube by insertion. This method can facilitate the fixing of wiring tubes of different sizes and prevent the wiring tubes from falling off during assembly.

[0017] 2. The utility model is provided with a movable tube, and a cylindrical protrusion structure is provided on the outer side of the movable tube. The top of the limit frame is provided with a notch that engages with the protrusion structure on the outer side of the movable tube. A sliding connection is formed between the movable tube and the limit frame. The limit spring is located on the outer side of the connecting column, and the bottom end of the limit spring is fixedly connected to the limit frame, and the top end is fixedly connected to the movable tube. The limit tube is located inside the quadrangular cylindrical opening of the shell, and a sliding connection is formed between the limit tube and the shell. The inner wall of the limit tube is provided with a threaded structure, which can facilitate the socket or switch to be installed on the top of the shell by screws. During the process of tightening the screws, the limit tube will drive the movable tube to move upward, stretching the limit spring, and limiting the position of the screw by the elastic force of the limit spring, thereby limiting the position of the socket or switch. At the same time, the limit tube is made of metal. This method can limit the position of the socket switch while preventing the screw from damaging the screw mounting hole of the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the connecting pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the limit tube of the utility model;

[0021] Figure 4 This is a schematic diagram of the rubber block installation structure of the utility model;

[0022] Among them: 1. Shell; 11. Connecting pipe; 12. Limiting frame; 13. Connecting column; 14. Limiting spring; 15. Movable pipe; 16. Limiting pipe; 17. Base; 18. Limiting block; 19. Limiting ring; 110. Rubber block; 111. Connecting bolt. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] See also Figure 1 - Figure 4 In this embodiment, a lockable electrical junction box includes: a shell 1, a connecting pipe 11 is fixedly installed on the outside of the shell 1, a limit frame 12 is fixedly installed on the top of the shell 1, a connecting column 13 is inserted into the lower end of the limit frame 12, a limit spring 14 is fixedly installed inside the limit frame 12, a movable tube 15 is fixedly installed on the top of the connecting column 13, a limit tube 16 is fixedly installed on the top of the movable tube 15, a base 17 is fixedly installed inside the shell 1, a limit block 18 is movably installed above the base 17, a limit ring 19 is provided above the base 17 and below the limit block 18, a rubber block 110 is movably installed above the base 17, and a connecting bolt 111 is fixedly installed above the limit block 18.

[0027] The top of the shell 1 is provided with a rectangular protrusion structure, the connecting tube 11 is made of plastic, the wall thickness of the connecting tube 11 is six millimeters, the connecting tube 11 is symmetrically installed on the front, back, left and right four surfaces of the shell 1, the connecting tube 11 passes through the shell 1, and the end is flush with the inner wall of the shell 1. The four corners of the top of the shell 1 are provided with an opening structure consistent with the outer diameter of the limit tube 16, and the limit frame 12 is fixedly installed below the four corner opening structures of the shell 1. A sliding connection is formed between the connecting column 13 and the limit frame 12. The limit spring 14 is located on the outside of the connecting column 13, and the bottom end of the limit spring 14 is fixedly connected to the limit frame 12, and the top is fixedly connected to the movable tube 15. The movable tube 1 5 is provided with a cylindrical protrusion structure on the outside, and a notch is provided on the top of the limit frame 12 to fit with the protrusion structure on the outside of the movable tube 15. A sliding connection is formed between the movable tube 15 and the limit frame 12. The limit tube 16 is located inside the quadrangular cylindrical opening of the shell 1, and a sliding connection is formed between the limit tube 16 and the shell 1. A half-cylindrical structure depression is provided on the left and right sides above the base 17 and on the left and right sides below the limit block 18. The limit ring 19 is provided at the center of the recessed structure of the base 17 and the limit block 18. The rubber block 110 is a half-ring structure, and the rubber block 110 is installed between the base 17 and the limit block 18 in a mirror-symmetrical manner.

[0028] Specifically, the shell 1 can protect the wires, the connecting tube 11 can facilitate the connection between the shell 1 and the wiring tube, the limit frame 12 can limit the position of the connecting column 13, the connecting column 13 can limit the position of the movable tube 15, the limit spring 14 can apply tension to the movable tube 15 when stretched, the movable tube 15 can prevent the limit tube 16 from rotating, and the inner wall of the limit tube 16 is provided with a threaded structure to facilitate the socket or switch to be installed on the top of the shell 1 by screws, the base 17 can limit the position of the wires, the limit block 18 can clamp the wires with the base 17, the limit ring 19 can cause the rubber block 110 to deform to increase the friction between the wires, and the connecting bolt 111 can facilitate the installation of the limit block 18 above the base 17.

[0029] When in use, the connecting tube 11 is made of plastic, and the wall thickness of the connecting tube 11 is six millimeters. The connecting tube 11 is symmetrically installed on the front, back, left and right sides of the shell 1. The connecting tube 11 passes through the shell 1, and the end is flush with the inner wall of the shell 1. When the shell 1 is connected to the wiring tube, the inner wall or outer wall of the connecting tube 11 can be melted by a heat melter, so that the wall thickness of the connecting tube 11 changes, so that one end of the wiring tube can be inserted into the inside or outside of the connecting tube 11 by insertion. This method can facilitate the fixing of wiring tubes of different sizes and avoid the wiring tube from falling off during the assembly process. The outer side of the movable tube 15 is provided with a cylindrical protrusion structure, and the top of the limit frame 12 is provided with a notch that is engaged with the protrusion structure on the outer side of the movable tube 15. The movable tube 15 and the limit frame 1 2 forms a sliding connection, the limit spring 14 is located on the outside of the connecting column 13, and the bottom end of the limit spring 14 is fixedly connected to the limit frame 12, and the top end is fixedly connected to the movable tube 15, the limit tube 16 is located inside the quadrangular columnar opening of the shell 1, and a sliding connection is formed between the limit tube 16 and the shell 1, and the inner wall of the limit tube 16 is provided with a threaded structure to facilitate the socket or switch to be installed on the top of the shell 1 by screws. During the process of tightening the screws, the limit tube 16 will drive the movable tube 15 to move upward, stretching the limit spring 14, and limiting the position of the screw by the elastic force of the limit spring 14, thereby limiting the position of the socket or switch. At the same time, the limit tube 16 is made of metal. This method can prevent the screw from damaging the screw mounting hole of the junction box while limiting the position of the socket switch.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lockable electrical junction box, characterized in that: include: A shell (1) is fixedly installed on the outer side of the shell (1), a limit frame (12) is fixedly installed on the upper side of the shell (1), a connecting column (13) is inserted and installed at the lower end of the limit frame (12), a limit spring (14) is fixedly installed inside the limit frame (12), a movable tube (15) is fixedly installed on the top end of the connecting column (13), a limit tube (16) is fixedly installed on the top end of the movable tube (15), a base (17) is fixedly installed inside the shell (1), a limit block (18) is movably installed above the base (17), a limit ring (19) is provided above the base (17) and below the limit block (18), a rubber block (110) is movably installed above the base (17), and a connecting bolt (111) is fixedly installed above the limit block (18).

2. The lockable electrical junction box according to claim 1, characterized in that: The top of the shell (1) is provided with a rectangular protruding structure. The connecting tube (11) is made of plastic. The wall thickness of the connecting tube (11) is six millimeters. The connecting tube (11) is symmetrically installed on the front, back, left and right sides of the shell (1). The connecting tube (11) passes through the shell (1), and the end thereof is flush with the inner wall of the shell (1).

3. The lockable electrical junction box according to claim 1, characterized in that: The four corners of the top of the housing (1) are provided with opening structures having the same outer diameter as the limiting tube (16); the limiting frame (12) is fixedly installed below the four corner opening structures of the housing (1); and a sliding connection is formed between the connecting column (13) and the limiting frame (12).

4. The lockable electrical junction box according to claim 1, characterized in that: The limit spring (14) is located outside the connecting column (13), and the bottom end of the limit spring (14) is fixedly connected to the limit frame (12), and the top end is fixedly connected to the movable tube (15).

5. The lockable electrical junction box according to claim 1, characterized in that: The outer side of the movable tube (15) is provided with a columnar protrusion structure, and the top end of the limiting frame (12) is provided with a notch that engages with the protrusion structure on the outer side of the movable tube (15), and a sliding connection is formed between the movable tube (15) and the limiting frame (12).

6. The lockable electrical junction box according to claim 1, characterized in that: The limiting tube (16) is located inside the quadrangular columnar opening of the housing (1), and a sliding connection is formed between the limiting tube (16) and the housing (1). A depression with a half-columnar structure is provided on the left and right sides above the base (17) and on the left and right sides below the limiting block (18).

7. The lockable electrical junction box according to claim 1, characterized in that: The limiting ring (19) is arranged at the center of the recessed structure of the base (17) and the limiting block (18); the rubber block (110) is a half-ring structure, and the rubber block (110) is installed between the base (17) and the limiting block (18) in a mirror-symmetrical manner.

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