Terminal wiring structure of explosion-proof push button box

Abstract

The utility model discloses a terminal wiring structure of explosion -proof button box, including bottom fixed seat and top fixed seat, is equipped with assembly cavity between bottom fixed seat and top fixed seat, and the fixed assembly has the wiring post in bottom fixed seat, and the lateral wall of bottom fixed seat is equipped with connecting groove, and the fixed assembly has the auxiliary fixing mechanism in connecting groove, and the fixed assembly has the electrically conductive column in top fixed seat. The assembly cavity formed between bottom fixed seat and top fixed seat not only provides stable mounting space for wiring post and electrically conductive column, but also seals again between cable and wiring post after cable enters into button box. Meanwhile, the cable auxiliary fixing mechanism arranged in connecting groove, especially the protection frame that is symmetrically arranged up and down, and the elastic fixing through telescopic shaft and spring, ensure the stability and reliability of cable after access, further improve the safety performance of explosion -proof button box.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof button box technology, and specifically to a terminal wiring structure for an explosion-proof button box. Background Technology

[0002] Explosion-proof push-button boxes, widely used electrical equipment components in hazardous environments, primarily provide a safe and reliable button operation interface for electrical control systems in the presence of explosive gases, dust, and other harsh conditions. They effectively prevent explosions caused by electrical sparks, high temperatures, and other factors, ensuring personnel safety and normal equipment operation. In industrial production, especially in the petroleum, chemical, and coal mining industries, the use of explosion-proof push-button boxes is crucial; their performance directly affects the safety and stability of the entire production system.

[0003] Existing explosion-proof button boxes have relatively fixed interface positions. If the wiring connecting to the internal terminals is too thin, the interface will affect the sealing performance between the cable and the internal aperture, leading to a poor seal. In the event of an explosion, gas can easily enter the button box and impact the connection between the cable and the terminal, causing damage and instability. This results in button malfunction and inability to control the equipment. Therefore, we propose a new terminal wiring structure for explosion-proof button boxes. Utility Model Content

[0004] The purpose of this utility model is to provide a terminal wiring structure for an explosion-proof button box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a terminal wiring structure for an explosion-proof button box, including a bottom fixing seat and a top fixing seat, an assembly cavity is provided between the bottom fixing seat and the top fixing seat, a terminal post is fixedly assembled in the bottom fixing seat, a connecting groove is provided on the side wall of the bottom fixing seat, an auxiliary fixing mechanism is fixedly assembled in the connecting groove, and a conductive post is fixedly assembled in the top fixing seat.

[0006] Preferably, the bottom fixing base is equipped with first fixing screws at the four corners, and the bottom fixing base and the top fixing base are fixedly fitted with second fixing screws, with the first fixing screws and the second fixing screws being staggered.

[0007] Preferably, the connecting groove is equipped with a cable auxiliary fixing mechanism, which includes a protective frame, and the protective frame is symmetrically arranged in the connecting groove from top to bottom.

[0008] Preferably, a telescopic shaft is fixedly connected to the side wall of the protective frame, the telescopic shaft is inserted into the telescopic cavity, and a spring is fixedly assembled between the telescopic shaft and the telescopic cavity.

[0009] Preferably, the number of telescopic shafts is at least two, and the two telescopic shafts are symmetrically distributed in front and behind.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: A terminal wiring structure for an explosion-proof button box is installed inside the box. It employs a bottom fixing seat and a top fixing seat that cooperate with each other. The assembly cavity formed between the bottom and top fixing seats not only provides a stable installation space for the terminals and conductive posts but also re-seals the connection between the cable and the terminals after the cable enters the button box. Furthermore, the staggered arrangement of the first and second fixing screws enhances the overall structural stability and sealing. Simultaneously, the cable auxiliary fixing mechanism within the connection slot, particularly the symmetrically arranged protective frames and the elastic fixing achieved through a telescopic shaft and spring, ensures the stability and reliability of the cable after connection, further improving the safety performance of the explosion-proof button box. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the bottom fixing base of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the bottom fixing seat and the top fixing seat after assembly.

[0015] Figure 5 for Figure 4 Detailed image of point a in the image.

[0016] In the diagram: 1. Bottom fixing seat; 2. Top fixing seat; 3. Assembly cavity; 4. First fixing screw; 5. Terminal block; 6. Connecting groove; 7. Cable auxiliary fixing mechanism; 71. Protective frame; 72. Telescopic shaft; 73. Telescopic cavity; 74. Spring; 8. Second fixing screw; 9. Conductive post. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 This utility model provides a technical solution: a terminal wiring structure for an explosion-proof button box, including a bottom fixing seat 1 and a top fixing seat 2. The opposite side walls of the bottom fixing seat 1 and the top fixing seat 2 are provided with an assembly cavity 3. By setting the bottom fixing seat 1 and the top fixing seat 2, the assembly cavity 3 is formed into a relatively sealed space. The wiring terminals of the control button box are further protected in the assembly cavity 3, so as to avoid damage to the wiring terminals due to external factors such as airflow generated by an accidental explosion during use, thereby causing the button of the button box to malfunction.

[0019] like Figure 2 and Figure 3 As shown, the bottom mounting base 1 is fixedly assembled to the bottom of the inner cavity of the explosion-proof button box by the first fixing screw 4. A terminal block 5 is fixedly assembled in the assembly cavity 3 of the bottom mounting base 1. The terminal block 5 has four terminals, one of which is the ground terminal. A connecting groove 6 is opened on the side wall of the bottom mounting base 1. The cable for connecting with the terminal block 5 passes through the connecting groove 6. A cable auxiliary fixing mechanism 7 is installed in the connecting groove 6. The cable auxiliary fixing mechanism 7 can limit and fix the position of the cable in the connecting groove 6, and at the same time protect the cable passing through.

[0020] like Figure 4 and Figure 5 As shown, the cable auxiliary fixing mechanism 7 includes a protective frame 71, which is symmetrically assembled in the connecting groove 6. A telescopic shaft 72 is fixedly connected to the side wall of the protective frame 71. The telescopic shaft 72 is inserted into the telescopic cavity 73. There are at least two telescopic shafts 72, which are symmetrically distributed in front and back to improve the stability of the protective frame 71 in the connecting groove 6. A spring 74 is fixedly assembled between the top of the telescopic shaft 72 and the inner cavity of the telescopic cavity 73. By setting the telescopic protective frame 71, the protective frame 71 can limit and fix cables of different sizes in the connecting groove 6, improve the stability of cable fixing, and thus ensure the stability of the connection between the cable and the terminal block 5.

[0021] like Figure 4 As shown, the top mounting base 2 is detachably fixed to the bottom mounting base 1 by the second fixing screw 8. The second fixing screw 8 and the first fixing screw 4 are staggered. A conductive post 9 is fixedly installed at the bottom of the inner cavity of the top mounting base 2. After the top mounting base 2 and the bottom mounting base 1 are fixedly connected, the conductive post 9 will contact the terminal post 5. The conductive post 9 is electrically connected to the control button of the explosion-proof button box, thereby realizing the connection between the cable entering the explosion-proof button box and the control button.

[0022] Working principle: such as Figure 1 and Figure 2As shown, during use, the cover of the explosion-proof button box is first opened, and then the cable connected to the explosion-proof button box enters the box from the wiring port. After the cable passes through the connecting groove 6, it is connected and fixed to the terminal 5. At this time, the protective frame 71 in the connecting groove 6 will limit the cable, improving the stability of the connection between the cable and the terminal 5. Then, the top fixing seat 2 and the bottom fixing seat 1 are fixedly connected by the second fixing screw 8. At this time, the conductive post 9 contacts the terminal 5, realizing the electrical connection between the cable and the control button. By setting this wiring structure, the sealing between the cable and the terminal 5 can be improved, thereby reducing the damage to the wiring terminal caused by external gas entering the box from the interface of the explosion-proof button box during an explosion, and improving the stability of the connection between the cable and the terminal 5.

Claims

1. A terminal wiring structure for an explosion-proof button box, characterized in that, It includes a bottom fixing seat (1) and a top fixing seat (2), an assembly cavity (3) is provided between the bottom fixing seat (1) and the top fixing seat (2), a terminal block (5) is fixedly assembled in the bottom fixing seat (1), a connecting groove (6) is provided on the side wall of the bottom fixing seat (1), an auxiliary fixing mechanism (7) is fixedly assembled in the connecting groove (6), and a conductive post (9) is fixedly assembled in the top fixing seat (2).

2. The terminal wiring structure of an explosion-proof button box according to claim 1, characterized in that: The bottom fixing seat (1) is equipped with first fixing screws (4) at the four corners, and a second fixing screw (8) is fixedly installed between the bottom fixing seat (1) and the top fixing seat (2). The first fixing screw (4) and the second fixing screw (8) are staggered.

3. The terminal wiring structure of an explosion-proof button box according to claim 1, characterized in that: The connecting groove (6) is equipped with a cable auxiliary fixing mechanism (7), which includes a protective frame (71) and is arranged symmetrically in the connecting groove (6).

4. The terminal wiring structure of an explosion-proof button box according to claim 3, characterized in that: The protective frame (71) has a telescopic shaft (72) fixedly connected to its side wall. The telescopic shaft (72) is inserted into the telescopic cavity (73). A spring (74) is fixedly assembled between the telescopic shaft (72) and the telescopic cavity (73).

5. The terminal wiring structure of an explosion-proof button box according to claim 4, characterized in that: The number of the telescopic shafts (72) is at least two, and the two telescopic shafts (72) are symmetrically distributed in front and behind.

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