Explosion-proof junction box capable of realizing rapid wiring

Abstract

The utility model discloses a quick wiring explosion-proof junction box, which comprises a box body, a lifting block is arranged at the bottom in the box body, the lifting block is provided with a supporting plate, and a plurality of wire pressing plates are uniformly distributed on the supporting plate by taking a circle point as an axis. A plurality of guide columns are evenly distributed at the bottom in the box body with the lifting block as the axis and penetrate through the supporting plate, the guide columns are provided with current-conducting plates in a sliding mode, the current-conducting plates are arranged in a wire pressing plate in a sliding mode, and the wire pressing plate is provided with springs and abuts against the current-conducting plates. A downward pressure is applied to the conductive plate, so that a space for allowing a conductive exposed part to enter is formed between the conductive plate and the wire pressing plate, and the spring releases an elastic force to the conductive plate, so that the conductive plate presses a wire on the wire pressing plate, and rapid wiring of the wire is completed; and the contact area and friction force of the conductive plate, the wire pressing plate and the wire are increased, so that the product has the advantages of quick wiring and stable and reliable wiring.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to a quick-connection explosion-proof junction box. Background Art

[0002] Explosion-proof junction boxes are often used in explosive-hazardous areas, such as mines and natural gas stations, for branching or wiring. Flameproof junction boxes are typically used in engineering projects. These types of boxes are sealed to isolate the interior of the box from the outside environment, preventing internal sparks from igniting explosive gases and providing explosion protection.

[0003] Existing explosion-proof wire-threading boxes are usually equipped with multiple wiring terminals, which include studs, two locking pressure plates, and a compression nut. When wiring, the wire is inserted into the box through the wire-threading port, and the wire is wrapped around the stud and located between the two locking pressure plates. The compression nut is then tightened to clamp the two locking pressure plates together.

[0004] Since the internal space of the explosion-proof junction box is very small, the above wiring operation is relatively cumbersome and difficult, resulting in problems such as time-consuming wiring, unreliable wiring, and loose connections. Therefore, the applicant has made a useful design and found a solution to the above problems. The technical solution to be introduced below was produced in this context. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned traditional explosion-proof junction box design and provide a product with fast wiring, stable and reliable wiring.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A quick-wiring explosion-proof junction box includes a box body, a lifting block is provided at the bottom of the box body, the lifting block is provided with a support plate, the support plate is evenly distributed with a circle as the axis and provided with a plurality of wire pressing plates, the bottom of the box body is evenly distributed with the lifting block as the axis and passes through the support plate, the guide columns are slidably provided with a conductive plate, the conductive plate is slidably set in the wire pressing plate, the wire pressing plate is provided with a spring and abuts against the conductive plate so that the conductive plate is tightly pressed against one end of the wire pressing plate.

[0008] Preferably, the side wall of the box body is provided with a plurality of threading holes.

[0009] Preferably, the box body is threadedly connected to a top cover, and the top cover is provided with a threading hole or is free of a threading hole.

[0010] Preferably, the threading hole is provided with a rubber threading block, and the rubber threading block is provided with a through hole for the wire to pass through. A compression nut is threadedly connected at the entrance of the threading hole and abuts against the rubber threading block.

[0011] Preferably, the wire pressing plate is provided with a slide groove, a convex column is provided at the bottom of the slide groove, the spring is arranged on the outer wall of the convex column, and a protrusion is provided at the top of the slide groove.

[0012] Preferably, the conductive plate is slidably arranged in the slide groove, the conductive plate is provided with a recessed groove corresponding to the raised portion, and the conductive plate is provided with a pressing plate, which is sleeved on the guide column.

[0013] Preferably, the support plate is provided with a cavity for accommodating the wire pressing plate, and the cavity is provided with a fastening screw and is threadedly connected to the wire pressing plate.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The utility model applies downward pressure to the conductive plate, so that a gap is formed between the conductive plate and the wire pressing plate to accommodate the conductive exposed part. When the conductive exposed part is placed in place, the force applied to the conductive plate is released, and the spring releases the elastic force to the conductive plate, so that the conductive plate presses the wire tightly against the wire pressing plate, completing the rapid wiring of the wire without the need to use other tools. The lifting block moves the support plate upward as a whole, increasing the field of view, making it easier for the user to place the wire between the conductive plate and the wire pressing plate, and speeding up the wiring speed.

[0017] (2) The present invention increases the contact area between the conductive plate, the wire pressing plate and the wire by means of the raised portion and the matching recessed groove, so that the wire is compressed into an arched state, thereby increasing the friction between the wire and the conductive plate and the wire pressing plate, and making the product have the advantage of stable and reliable wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a top cover of a quick-connection explosion-proof junction box without a wire threading hole in the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a quick-connect explosion-proof junction box with a threading hole on the top cover of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of a quick-connect explosion-proof junction box of the utility model;

[0021] Figure 4 This is a schematic side sectional structure diagram of a quick-connect explosion-proof junction box of the utility model;

[0022] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle part;

[0023] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0024] Figure numerals: 1. Box body; 2. Support plate; 3. Wire pressing plate; 4. Conductive plate; 5. Spring; 6. Top cover; 7. Threading hole; 11. Lifting block; 12. Guide column; 21. Concave cavity; 22. Fastening screw; 31. Slide groove; 32. Boss; 33. Raised portion; 41. Groove; 42. Pressing plate; 71. Rubber threading block; 72. Through hole; 73. Pressing nut. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0028] Reference example Figures 1 to 5 , a quick-wiring explosion-proof junction box, including a box body 1, a lifting block 11 is provided at the bottom of the box body 1, the lifting block 11 is provided with a support plate 2, the support plate 2 is evenly distributed with a number of wire pressing plates 3 with the dot as the axis, the bottom of the box body 1 is evenly distributed with a number of guide pillars 12 with the lifting block 11 as the axis, and passes through the support plate 2, the guide pillars 12 are slidably provided with a conductive plate 4, the conductive plate 4 is slidably arranged in the wire pressing plate 3, the wire pressing plate 3 is provided with a spring 5, and abuts the conductive plate 4, so that the conductive plate 4 is tightly pressed against one end of the wire pressing plate 3, the lifting block 11 causes the support plate 2 to move up as a whole, increasing the field of view, making it easier for users to put the wire between the conductive plate 4 and the wire pressing plate 3, and speeding up the wiring speed;

[0029] It is worth mentioning that the side wall of the box body 1 is provided with a plurality of threading holes 7, which are not only for the wires to pass through, but also accommodate the rubber threading block 71 and the compression nut 73;

[0030] It is worth mentioning that the box body 1 is threadedly connected to the top cover 6, and the top cover 6 is provided with a threading hole 7 or without a threading hole 7. This product provides two models of the top cover 6 with or without a threading hole 7 for customers to choose;

[0031] It is worth mentioning that the threading hole 7 is provided with a rubber threading block 71, and the rubber threading block 71 is provided with a through hole 72 for the wire to pass through. A compression nut 73 is threadedly connected at the entrance of the threading hole 7 and abuts against the rubber threading block 71. After the wire passes through the through hole 72, the compression nut 73 is rotated and squeezed to squeeze the rubber threading block 71, so that the rubber threading block 71 is deformed and retracted, pressing and tightly fitting the outer wall of the wire.

[0032] It is worth mentioning that the wire pressing plate 3 is provided with a slide groove 31, a boss 32 is provided at the bottom of the slide groove 31, the spring 5 is arranged on the outer wall of the boss 32, and a protrusion 33 is provided at the top of the slide groove 31. The boss 32 prevents the spring 5 from escaping, and the protrusion 33 is used in conjunction with the sink 41;

[0033] It is worth mentioning that the conductive plate 4 is slidably arranged in the slide groove 31, and the conductive plate 4 is provided with a recessed groove 41 corresponding to the protrusion 33. The conductive plate 4 is provided with a pressing plate 42 and is sleeved on the guide column 12. The protrusion 33 and the matching recessed groove 41 increase the contact area between the conductive plate 4, the wire pressing plate 3 and the wire, so that the wire is compressed into an arched state, thereby increasing the friction between the wire and the conductive plate 4 and the wire pressing plate 3. The pressing plate 42 is made of insulating plastic material;

[0034] It is worth mentioning that the support plate 2 is provided with a cavity 21 for accommodating the wire pressing plate 3. The cavity 21 is provided with a fastening screw 22 and is threadedly connected to the wire pressing plate 3. The fastening screw 22 fixes the wire pressing plate 3 in the cavity 21.

[0035] The operating principle of the present invention is now described as follows:

[0036] By applying downward pressure to the pressing plate 42, a gap is formed between the conductive plate 4 and the wire pressing plate 3 to accommodate the conductive exposed part, and the spring 5 is energized. When the conductive exposed part is placed in place, the force applied to the pressing plate 42 is released, and the spring 5 releases the elastic force to the conductive plate 4, causing it to press the wire tightly into the protrusion 33 and the sinking groove 41, completing the quick connection of the wire.

[0037] The above design scheme can enable the product to achieve the advantages of fast wiring and stable and reliable wiring.

[0038] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A quick-connect explosion-proof junction box, comprising a box body (1), characterized in that: The bottom of the box body (1) is provided with a lifting block (11), the lifting block (11) is provided with a support plate (2), the support plate (2) is evenly distributed with a plurality of wire pressing plates (3) with a dot as an axis, the bottom of the box body (1) is evenly distributed with a plurality of guide pillars (12) with the lifting block (11) as an axis, and passes through the support plate (2), the guide pillars (12) are slidably provided with a conductive plate (4), the conductive plate (4) is slidably arranged in the wire pressing plate (3), the wire pressing plate (3) is provided with a spring (5), and abuts against the prime conductive plate (4), so that the conductive plate (4) is tightly pressed against one end of the wire pressing plate (3).

2. The explosion-proof junction box for quick connection according to claim 1, characterized in that: The side wall of the box body (1) is provided with a plurality of threading holes (7).

3. The explosion-proof junction box for quick connection according to claim 2, characterized in that: The box body (1) is threadedly connected to a top cover (6), and the top cover (6) is provided with a threading hole (7) or is free of a threading hole (7).

4. The explosion-proof junction box for quick connection according to claim 3, characterized in that: The threading hole (7) is provided with a rubber threading block (71), and the rubber threading block (71) is provided with a through hole (72) for the wire to pass through. A compression nut (73) is threadedly connected at the entrance of the threading hole (7) and abuts against the rubber threading block (71).

5. The explosion-proof junction box for quick connection according to claim 1, characterized in that: The wire pressing plate (3) is provided with a slide groove (31), a boss (32) is provided at the bottom of the slide groove (31), the spring (5) is arranged on the outer wall of the boss (32), and a protrusion (33) is provided at the top of the slide groove (31).

6. The explosion-proof junction box for quick connection according to claim 5, characterized in that: The conductive plate (4) is slidably arranged in the sliding groove (31), the conductive plate (4) is provided with a sink groove (41) corresponding to the protrusion (33), and the conductive plate (4) is provided with a pressing plate (42) and is sleeved on the guide column (12).

7. The explosion-proof junction box for quick connection according to claim 6, characterized in that: The support plate (2) is provided with a concave cavity (21) for accommodating the wire pressing plate (3); the concave cavity (21) is provided with a fastening screw (22) and is threadedly connected to the wire pressing plate (3).

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