Explosion-proof junction box

Abstract

The utility model discloses an explosion-proof junction box, which comprises a box body, a plurality of sockets are uniformly distributed on the outer side of the box body, sliding terminal seats are arranged in the sockets in a sliding manner, wire plugs are inserted into the sliding terminal seats, springs are sleeved on the sliding terminal seats, and the wire plugs are inserted into the sliding terminal seats. The two ends of the spring abut against the inner walls of the sliding terminal seats and the sockets respectively, the sockets are each rotationally provided with an operation handle used for operating the wire plugs and the sliding terminal seats to move, the box body is internally provided with a branching seat used for being connected with the sliding terminal seats, and the tops of the sockets are each provided with a limiting piece. According to the utility model, when the wire and the junction box are connected and disconnected, the junction box does not need to be disassembled, so that the efficiency of connection and disconnection between the wire and the junction box is higher, the wire and the junction box can be connected and disconnected in the use process, power-off operation is not needed, and economic loss caused by power-off is reduced.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof junction box technology, and specifically to an explosion-proof junction box. Background Technology

[0002] Explosion-proof junction boxes are special electrical devices primarily used for the safe distribution and control of electrical signals in hazardous environments. Because they are used in environments containing explosive gases, dust, or liquids, they have extremely high safety and reliability requirements.

[0003] For example, Chinese Patent Publication No. CN221862353U discloses an explosion-proof junction box, including a box body and a cover. A fixing bolt is fixedly assembled between the box body and the cover. A connection port is integrally formed on the side wall of the box body. A mounting base is fixedly assembled in the center of the inner cavity of the box body. A mounting block is rotatably connected inside the mounting base. A connecting assembly is assembled between the mounting block and the mounting base. A support frame is fixedly assembled on the top of the mounting block, and a terminal block is fixedly assembled on the top of the support frame. The terminal block located inside the box is fixedly assembled on the top of the mounting block, which can rotate relative to the mounting base. By rotating the mounting block, the wiring direction of the terminal block can be adjusted, bringing the terminal closer to the connection port of the wire to be connected. This facilitates wiring operations within the box, improves the neatness of the wires within the box, and thus facilitates subsequent inspection and maintenance of the box.

[0004] However, when connecting wires to the explosion-proof junction box described in the aforementioned patent, it is usually necessary to remove the cover of the junction box, insert the wire into the box, and then fix the wire to the conductive component inside the box with screws. This method makes the connection and disconnection of the wires to the junction box quite cumbersome. Moreover, the connection and disconnection of the wires during use requires power to be disconnected. In continuous operation industries such as petroleum, chemical, and pharmaceutical industries, power outages may cause the entire production line to stop, resulting in losses of tens of thousands to millions of yuan per hour, causing significant economic losses and causing many inconveniences in use.

[0005] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content

[0006] The present invention provides an explosion-proof junction box to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An explosion-proof junction box includes a box body, a plurality of sockets evenly distributed on the outer side of the box body, a sliding terminal block slidably disposed within each of the plurality of sockets, a wire plug inserted into each of the sliding terminal blocks, a spring sleeved on each of the sliding terminal blocks, the two ends of the springs respectively abutting against the inner wall of the sliding terminal block and the socket, an operating handle rotatably disposed on each of the sockets for operating the movement of the wire plug and the sliding terminal block, a junction box for connecting to the plurality of sliding terminal blocks inside the box body, and a limiting member disposed on the top of each socket.

[0009] Preferably, several operating handles are provided with arc-shaped grooves on both sides, and the wire plug is provided with guide rods on both sides, the guide rods being embedded in the arc-shaped grooves.

[0010] Preferably, one end of the sliding terminal block is provided with a retaining ring, one end of the inner wall of the socket is provided with a retaining platform, and both ends of the spring abut against the retaining ring and the retaining platform, respectively.

[0011] Preferably, the socket opening is fitted with a sealing block, which abuts against the retaining ring.

[0012] Preferably, the limiting component includes a vertical rod disposed on the top of the socket, a limiting rod rotatably disposed on the top of the vertical rod, a limiting block disposed on one side of the top of the limiting rod, a limiting groove that cooperates with the limiting rod being provided on one side of the operating handle, a recessed groove being provided at the top of the limiting groove, and stops being provided on both sides of the recessed groove.

[0013] Preferably, the sliding terminal block is provided with a plurality of sliding terminals inside, one end of the sliding terminal block is provided with a first insertion groove, and the other end of the sliding terminal block is provided with a second insertion groove.

[0014] Preferably, the wire plug has a plug terminal seat inside, the plug terminal seat has a plurality of plug terminals inside, and one end of the plug terminal seat has a plug part, which is inserted into a plug slot.

[0015] Preferably, the junction box is provided with several plug-in portions two that mate with the plug-in slots two, and several junction terminals are arranged in a crisscross pattern inside the junction box.

[0016] Beneficial effects

[0017] The explosion-proof junction box provided by this utility model embodiment has at least one of the following technical effects:

[0018] This invention, through the above-described technical solution, allows for connection as follows: During connection, the operating handle is moved by flipping it, causing the arc-shaped groove to move along the guide rod. The arc-shaped groove engages with the guide rod, pulling the wire plug towards the junction box. This, in turn, pushes the sliding terminal block towards the junction box, allowing the second plug-in portion to insert into the second plug-in slot, connecting the sliding terminal to the junction box, thus completing the connection between the external wire and the junction box. To disconnect, the operating handle is flipped in the opposite direction, and the arc-shaped groove engages with the guide rod, causing the guide rod to pull the wire plug... When the plug is moved away from the socket, the sliding terminal block is driven by the plug terminal block, and the sliding terminal block is pushed away from the junction box by the spring, so that the second plug part is pulled out from the second plug slot, and the sliding terminal block is separated from the junction box, thus completing the disconnection between the external wire and the junction box. This utility model does not require disassembling the junction box when connecting and disconnecting the wire and the junction box, so that the connection and disconnection between the wire and the junction box is more efficient. Moreover, the connection and disconnection between the wire and the junction box can be achieved during use without power interruption, reducing the economic losses caused by power outages. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention in use;

[0022] Figure 4 This is a cross-sectional structural diagram of the present invention in use.

[0023] Figure 5 for Figure 3 A magnified structural diagram at point A.

[0024] The correspondence between the labels and component names in the attached figures is as follows:

[0025] 1. Box body; 2. Socket; 3. Sliding terminal block; 4. Wire plug; 5. Spring; 6. Operating handle; 7. Branch terminal; 8. Limiting component; 9. Arc groove; 10. Guide rod; 11. Retaining ring; 12. Stop; 13. Sealing block; 14. Upright rod; 15. Limiting rod; 16. Limiting block; 17. Limiting groove; 18. Recessed groove; 19. Stop; 20. Sliding terminal; 21. Plug slot one; 22. Plug slot two; 23. Plug terminal block; 24. Plug terminal; 25. Plug part one; 26. Plug part two; 27. Branch terminal. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.

[0030] like Figure 1-5 The diagram shown is a structural schematic of an explosion-proof junction box according to a preferred embodiment of the present invention.

[0031] In this embodiment, a box body 1 is included. A plurality of sockets 2 are evenly distributed on the outer side of the box body 1. The sockets 2 are evenly distributed in a circle around the center of the box body 1. The sockets 2 are cylindrical structures. A sliding terminal block 3 is slidably provided inside each of the sockets 2. The sliding terminal block 3 slides along the axial direction of the socket 2. A wire plug 4 is inserted into each of the sliding terminal blocks 3. A spring 5 is sleeved on each of the sliding terminal blocks 3. The two ends of the spring 5 abut against the inner wall of the sliding terminal block 3 and the socket 2, respectively. The spring 5 provides elastic force to the sliding terminal block 3, causing the sliding terminal block 3 to move away from the box body 1. When the wire plug 4 is inserted into the sliding terminal block 3, the spring 5 prevents the sliding terminal block 3 from being accidentally moved when the wire plug 4 is inserted. Each socket 2 is rotatably provided with an operating handle 6 for operating the movement of the wire plug 4 and the sliding terminal block 3. A branching seat 7 for connecting with the plurality of sliding terminal blocks 3 is provided inside the box body 1. A limiting member 8 is provided on the top of each socket 2 to limit the operation handle 6.

[0032] In this embodiment, several operating handles 6 are provided with arc-shaped grooves 9 on both sides, and the wire plug 4 is provided with guide rods 10 on both sides. The guide rods 10 are embedded in the arc-shaped grooves 9. During operation, by turning the operating handles 6, the operating handles 6 are rotated, causing the arc-shaped grooves 9 to move along the guide rods 10. At that time, the guide rods 10 make relative movements along the arc-shaped trajectory of the arc-shaped grooves 9 (the guide rods 10 move relative to the arc-shaped grooves 9). Through the cooperation between the arc-shaped grooves 9 and the guide rods 10, the guide rods 11 are guided towards the housing 1. The wire plug 4 moves, pushing the sliding terminal block 3 to the branch terminal block 7 and connecting it to the branch terminal block 7; the operating handle 6 is turned in the opposite direction, causing the operating handle 6 to rotate in the opposite direction, causing the arc groove 9 to move along the guide rod 10. At that time, the guide rod 10 makes relative movement along the arc trajectory of the arc groove 9, causing the guide rod 10 to return to its original position. Through the cooperation between the arc groove 9 and the guide rod 10, the guide rod 11 pulls the wire plug 4 to move away from the box body 1. The spring 5 provides elastic force to push the sliding terminal block 3 and the branch terminal block 7 to separate.

[0033] In this embodiment, a retaining ring 11 is provided at one end of the sliding terminal block 3, and a retaining platform 12 is provided at one end of the inner wall of the socket 2. The two ends of the spring 5 abut against the retaining ring 11 and the retaining platform 12 respectively. This structure makes the two ends of the spring 5 have force points, so that the elastic force of the spring 5 is applied between the sliding terminal block 3 and the socket 2.

[0034] In this embodiment, a sealing block 13 is embedded at the open end of the socket 2. The sealing block 13 abuts against the retaining ring 11, and the sliding terminal seat 3 is confined inside the socket 2 by the sealing block 13, which plays a limiting role.

[0035] In this embodiment, the limiting member 8 includes a vertical rod 14 disposed on the top of the socket 2. The axis of the vertical rod 14 is perpendicular to the axis of the socket 2. A limiting rod 15 is rotatably disposed on the top of the vertical rod 14. A limiting block 16 is disposed on one side of the top of the limiting rod 15. A limiting groove 17 that matches the limiting rod 15 is opened on one side of the operating handle 6. A recessed groove 18 is disposed on the top of the limiting groove 17. A stop block 19 is disposed on both sides of the recessed groove 18. When the operating handle 6 is turned to complete the connection between the sliding terminal block 3 and the branch terminal block 7, the side of the operating handle 6 with the limiting groove 17 rotates to the vertical rod 14. The limiting rod 15 is inserted into the limiting groove 17. At that time, rotating the limiting rod 15 causes the limiting block 16 to be inserted into the recessed groove 18. The stop block 19 limits the limiting block 16. This structure completes the limitation of the operating handle 6, preventing the operating handle 6 from automatically displacing and causing the connection between the sliding terminal block 3 and the branch terminal block 7 to become loose.

[0036] In this embodiment, the sliding terminal block 3 is provided with a plurality of sliding terminals 20 inside. Both ends of the sliding terminal 20 are male terminal structures. One end of the sliding terminal block 3 is provided with a first insertion groove 21, and the other end of the sliding terminal block 3 is provided with a second insertion groove 22. The two ends of the sliding terminal 20 are respectively disposed in the first insertion groove 21 and the second insertion groove 22.

[0037] In this embodiment, the wire plug 4 is provided with a plug terminal seat 23 inside, and the plug terminal seat 23 is provided with a plurality of plug terminals 24 inside. The end of the plug terminal 24 near the sliding terminal seat 3 is a female terminal structure. One end of the plug terminal seat 23 is provided with a plug part 25, which is inserted into the plug groove 21. The plug terminal 24 is connected to the sliding terminal 20 to realize the electrical connection between the wire plug 4 and the sliding terminal seat 3. The other end of the plug terminal 24 can be fixedly connected to an external wire by screws.

[0038] In this embodiment, the junction box 7 is provided with several insertion parts 26 that mate with the insertion slots 22. The junction box 7 is provided with several branch terminals 27 arranged in a cross pattern inside. Both ends of the branch terminals 27 are female terminal structures. When connected, the insertion parts 26 are inserted into the insertion slots 22. The several branch terminals 27 are respectively connected to several sliding terminals 20 to realize the electrical connection between the sliding terminal block 3 and the junction box 7.

[0039] The explosion-proof junction box of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0040] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0041] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An explosion-proof junction box, comprising a box body (1), characterized in that: The outer side of the box (1) is provided with a plurality of sockets (2), and each of the sockets (2) is provided with a sliding terminal block (3). Each sliding terminal block (3) is provided with a wire plug (4). Each sliding terminal block (3) is provided with a spring (5). The two ends of the spring (5) abut against the inner wall of the sliding terminal block (3) and the socket (2) respectively. Each socket (2) is provided with a rotatable operating handle (6) for operating the wire plug (4) and the sliding terminal block (3) to move. The inside of the box (1) is provided with a splitter (7) for connecting with the plurality of sliding terminal blocks (3). Each socket (2) is provided with a limiting member (8) on the top.

2. The explosion-proof junction box according to claim 1, characterized in that: Several operating handles (6) are provided with arc-shaped grooves (9) on both sides, and the wire plug (4) is provided with guide rods (10) on both sides, and the guide rods (10) are embedded in the arc-shaped grooves (9).

3. The explosion-proof junction box according to claim 1, characterized in that: The sliding terminal block (3) is provided with a retaining ring (11) at one end, and the inner wall of the socket (2) is provided with a retaining platform (12) at one end. The two ends of the spring (5) abut against the retaining ring (11) and the retaining platform (12) respectively.

4. The explosion-proof junction box according to claim 3, characterized in that: The socket (2) has a sealing block (13) embedded at its open end, and the sealing block (13) abuts against the retaining ring (11).

5. The explosion-proof junction box according to claim 1, characterized in that: The limiting member (8) includes a vertical rod (14) located on the top of the socket (2). A limiting rod (15) is rotatably provided on the top of the vertical rod (14). A limiting block (16) is provided on one side of the top of the limiting rod (15). A limiting groove (17) that matches the limiting rod (15) is provided on one side of the operating handle (6). A recessed groove (18) is provided on the top of the limiting groove (17). A stop block (19) is provided on both sides of the recessed groove (18).

6. The explosion-proof junction box according to claim 1, characterized in that: The sliding terminal block (3) is provided with a plurality of sliding terminals (20) inside. One end of the sliding terminal block (3) is provided with a first insertion groove (21), and the other end of the sliding terminal block (3) is provided with a second insertion groove (22).

7. The explosion-proof junction box according to claim 6, characterized in that: The wire plug (4) is provided with a plug terminal seat (23) inside. The plug terminal seat (23) is provided with a plurality of plug terminals (24) inside. One end of the plug terminal seat (23) is provided with a plug part (25), which is inserted into the plug slot (21).

8. The explosion-proof junction box according to claim 6, characterized in that: The junction box (7) is provided with several plug-in portions (26) that fit into the plug-in slots (22), and several junction terminals (27) are arranged in a cross pattern inside the junction box (7).

Images