Explosion-proof junction box

Abstract

The utility model discloses an explosion-proof junction box, which comprises a box body and a box cover, lower clamping blocks are arranged in the box body and right opposite to wiring pipes of the box body, upper clamping blocks are arranged on the inner side surface of the box cover and right opposite to the lower clamping blocks, and clamping grooves are arranged on the opposite surfaces of the upper clamping blocks and the lower clamping blocks. A plurality of upper pushing grooves are formed in one side face of each lower clamping block, crow plates are arranged at the positions, right opposite to the upper pushing grooves, in the box body, one ends of the crow plates are inserted into the corresponding upper pushing grooves, and pressing rods are installed at the positions, right opposite to the other ends of the crow plates, of the inner side face of the box cover. According to the utility model, the structure is simple, the upper clamping block and the lower clamping block can be driven to approach inwards through the fixation of the box cover, so that a connected wire can be clamped and fixed to increase a second fixing point, and an opening in the inner side of a wiring pipe can be sealed through the upper clamping block and the lower clamping block which approach inwards to increase a second sealing effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a junction box technical field, concretely relates to an explosion -proof junction box. BACKGROUND

[0002] The explosion -proof junction box is suitable for the product of explosive environment, the characteristic is cast aluminium alloy shell, surface spray, the appearance is beautiful, in the home decoration, the junction box is one of electrician's auxiliary materials, because the electric wire of decoration is through the electric wire pipe, and adopts the junction box as the transition in the joint part of electric wire (such as line is relatively long, or electric wire pipe wants to corner), the electric wire pipe is connected with the junction box, and the electric wire in the line pipe is connected in the junction box, and the junction box plays the role of protecting electric wire and connecting electric wire, and this is the junction box.

[0003] The explosion -proof junction box is one of the junction box, the traditional explosion -proof junction box simple structure lacks the positioning and sealing function after wiring, so that the installed wire only has a fixed point, that is, the connection with the internal wiring terminal, easy to cause the loosening of wire, and once the opening of wiring pipe is too large, and sealing is not in place, the dust and impurities in the external environment are easy to enter the inside of the box body, thereby the overall safety. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the utility model provides an explosion -proof junction box, without other operation structure, can fix and seal the wire twice in the process of box cover fixed, to solve the problem in the above background technology.

[0005] The utility model is through the following technical scheme to realize: an explosion -proof junction box, including the box body and box cover, the inside of the box body is opposite to the wiring pipe of the box body and is equipped with lower clamping block, the inner side surface of the box cover is opposite to the lower clamping block and is installed with upper clamping block, the opposite surface of upper clamping block and lower clamping block is equipped with clamping groove, the side surface of lower clamping block is equipped with a plurality of upper push groove, the inside of the box body is opposite to the upper push groove and is provided with pry plate, one end of pry plate is inserted into the corresponding upper push groove, the inner side surface of the box cover is opposite to the other end of pry plate and is installed with pressure rod.

[0006] As preferred technical scheme, pry plate is all " V " type structure setting, the most resistance of pry plate is all convex and forms thickening part, the outer circle surface of thickening part is all contact with the inner wall surface of box body and is set, the thickening part of each group of pry plate is all installed with shaft rod, the bottom surface in the box body is located on the both sides of shaft rod and is installed with fixed seat, the inner side surface of fixed seat is all equipped with shaft hole, and both ends of shaft rod are inserted into the shaft hole.

[0007] As preferred technical scheme, the both sides of lower clamping block are vertically equipped with first positioning slot, and the first positioning slot is equipped with positioning column, and one end of positioning column is installed on the inner wall surface of box body.

[0008] Preferably, the outer side surface of the upper clamping block and the outer side surface of the lower clamping block are both arc-shaped structures, and the arc-shaped structures are matched with the arc-shaped degree of the inner circle of the box body.

[0009] Preferably, the outer side surface of the upper clamping block is provided with a plurality of second positioning grooves, and the inner circle surface of the box body is provided with a positioning strip corresponding to the second positioning grooves, and the positioning strip is slidingly arranged in the second positioning groove.

[0010] Preferably, the pry plates are made of metal springs.

[0011] Preferably, the pry plates are arranged on both sides of the clamping groove.

[0012] The utility model discloses the beneficial effect is: the utility model discloses simple structure can drive the upper clamping block and the lower clamping block to the inboard convergence through the fixation of box cover, thereby can hold the fixed wire of connection, to increase the second fixed point, and through the upper clamping block and the lower clamping block of inboard convergence can seal the opening of the inside of wiring pipe, to increase the second sealing effect, and the operation is simple, need not additional step, and the adaptability is increased. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the utility model after removing the box cover;

[0016] Figure 3 It is the structure schematic diagram of the upper clamping block and the lower clamping block of the utility model.

[0017] Wherein, 1, box body;2, box cover;3, lower clamping block;4, upper clamping block;5, positioning column;6, pry plate;7, shaft rod;8, second positioning groove;9, positioning strip;10, pressing rod;11, push groove;12, thickening portion;13, fixed seat. DETAILED DESCRIPTION

[0018] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and should not be understood as limiting the present application.

[0019] All features disclosed in this specification, or all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0020] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature, or any feature with the same or similar function. In other words, each feature disclosed in this specification is one example of a range of equivalent or similar features, unless stated otherwise.

[0021] As shown in Figure 1 , Figure 2 and Figure 3 , the explosion-proof junction box of the present application comprises a box body 1 and a box cover 2, the inside of the box body 1 is provided with a lower clamping block 3 opposite to the wiring pipe of the box body 1, the inner side of the box cover 2 is provided with an upper clamping block 4 opposite to the lower clamping block 3, the opposite surfaces of the upper clamping block 4 and the lower clamping block 3 are provided with clamping grooves, the side surface of the lower clamping block 3 is provided with a plurality of upper push grooves 11, the inside of the box body 1 is provided with a pry plate 6 opposite to the upper push grooves 11, one end of the pry plate 6 is inserted into the corresponding upper push groove 11, and the inner side of the box cover 2 is provided with a pressing rod 10 opposite to the other end of the pry plate 6; the box body and the box cover are made of metal material to ensure the explosion-proof effect.

[0022] In this embodiment, the pry plate 6 is provided in a "V" shape, the most resistant end of the pry plate 6 is protruding to form a thickened portion 12, the outer ring surface of the thickened portion 12 is in contact with the inner wall surface of the box body 1, the thickened portion 12 of each group of pry plates 6 is provided with a shaft rod 7, the bottom surface inside the box body 1 is provided with a fixed seat 13 on both sides of the shaft rod 7, the inner side surface of the fixed seat 13 is provided with a shaft hole, and both ends of the shaft rod 7 are inserted into the shaft hole.

[0023] In this embodiment, the two sides of the lower clamping block 3 are provided with a first positioning groove perpendicularly, the first positioning groove is provided with a positioning column 5, one end of the positioning column 5 is mounted on the inner wall surface of the box body 1, so that the lower clamping block can only move up and down along the positioning column.

[0024] The outer side of the upper clamping block 4 and the outer side of the lower clamping block 3 are both provided in an arc structure, and the arc structure is matched with the arc degree of the inner ring of the box body 1, so that the outer side of the upper clamping block and the outer side of the lower clamping block can be attached to the inner ring surface of the box body after the upper clamping block and the lower clamping block are moved inward, thereby sealing the opening on the inner side of the wiring tube.

[0025] In the embodiment, a plurality of second positioning grooves 8 are arranged on the outer side of the upper clamping block 4, and a positioning strip 9 is arranged on the inner ring surface of the box body 1 opposite to the second positioning groove 8, and the positioning strip 9 is slidingly arranged in the second positioning groove 8, so that the upper clamping block and the box cover can be positioned by the positioning strip, and the box cover can be stably moved toward the box body.

[0026] In the embodiment, the pry plates 6 are made of metal springs, so that the pry plates have a certain elasticity and can better push the lower clamping block upward.

[0027] In the embodiment, the pry plates 6 are arranged on both sides of the clamping groove, thereby avoiding affecting the passing of the wires.

[0028] After the wires pass through the wiring tube and enter the box body and are connected to the terminal in the box body, the box cover can be held, the second positioning groove on the upper clamping block is arranged opposite to the positioning strip, the box cover is stably moved toward the box body along the positioning strip, the movement of the box cover drives the pressing rod, the length of the pressing rod is greater than that of the upper clamping block, so that the pressing rod first contacts one end of the pry plate, the other end of the pry plate is raised upward around the shaft as the pressing rod is pressed downward, the lower clamping block is pushed upward by the raised pry plate, the lower clamping block is moved upward along the positioning column, and the wires are clamped and fixed by the upwardly moved lower clamping block and the downwardly moved upper clamping block, thereby increasing the second fixed point and greatly reducing the probability of wire loosening.

[0029] In the embodiment, a sealing sleeve is generally arranged in the opening on the outer side of the wiring tube, so that the opening on the inner side of the wiring tube is blocked and sealed as the upper clamping block and the lower clamping block are moved inward, thereby increasing the second sealing effect, and the operation is simple and does not require additional steps, thereby increasing the adaptability.

[0030] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. An explosion-proof junction box characterized by: The utility model provides a box, including box body (1) and box cover (2), the inside of box body (1) is provided with lower clamping block (3) just to the wiring pipe of box body (1), the inner side of box cover (2) is provided with upper clamping block (4) just to lower clamping block (3), the opposite surface of upper clamping block (4) and lower clamping block (3) is provided with clamping groove, the side of lower clamping block (3) is provided with multiple push groove (11), the inside of box body (1) is provided with pry plate (6) just to push groove (11), one end of pry plate (6) is inserted into corresponding push groove (11), the inner side of box cover (2) is provided with pressure rod (10) just to the other end of pry plate (6).

2. The explosion-proof junction box of claim 1, wherein: The pry plate (6) is provided with " V" type structure, the most contact of pry plate (6) is projected and forms thickening (12), the outer circle surface of thickening (12) is in contact with the inner wall surface of box body (1), the thickening (12) of each group of pry plate (6) is provided with shaft rod (7), the bottom surface in the box body (1) is provided with fixed seat (13) on the both sides of shaft rod (7), the inner side of fixed seat (13) is provided with shaft hole, the both ends of shaft rod (7) are inserted into the shaft hole.

3. The explosion-proof junction box of claim 1, wherein: The both sides of lower clamping block (3) are vertically provided with first positioning slot, the first positioning slot is provided with positioning column (5), one end of positioning column (5) is installed on the inner wall surface of box body (1).

4. The explosion-proof junction box of claim 1, wherein: The outer side of lower clamping block (3) and upper clamping block (4) is provided with arc structure, and the arc structure is matched with the arc degree of the inner circle of box body (1).

5. The explosion-proof junction box of claim 1, wherein: The outer side of upper clamping block (4) is provided with multiple second positioning slots (8), and the inner circle surface of box body (1) is provided with positioning strip (9) just to the second positioning slot (8).

6. The explosion-proof junction box of claim 1, wherein: The pry plate (6) is made of metal spring.

7. The explosion-proof junction box of claim 1, wherein: The pry plate (6) is provided on the both sides of clamping groove.

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