Explosion-proof junction box

Abstract

The utility model provides an explosion-proof junction box, which comprises a box body and a box cover, the opposite sides of the box body and the box cover are respectively provided with a fixing plate and a connecting plate, and the fixing plate and the connecting plate are connected through a plurality of bolts, so that the box cover is detachably connected with the box body; a butt-joint groove and two sealing gaskets arranged on the two sides of the butt-joint groove are arranged on the side, opposite to the connecting plate, of the fixing plate, a butt-joint plate matched with the butt-joint groove is arranged at the position, corresponding to the butt-joint groove, of the connecting plate, and the fixing plate is attached to the connecting plate through the two sealing gaskets. According to the explosion-proof junction box provided by the utility model, the butt-joint groove and the sealing gasket are arranged on the fixed plate of the box body, and the butt-joint plate is arranged on the butt-joint plate of the box cover, so that when the explosion-proof junction box is used, the box cover is inserted into the butt-joint groove through the butt-joint plate, and then a bolt penetrates through the box cover to be in threaded connection with the box body, so that the installation is completed; and through mutual cooperative use of the butt joint groove, the sealing gasket and the butt joint plate, the friction force between the box door and the box cover is increased, and then the sealing performance of the box body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a terminal box technical field especially relates to a kind of explosion-proof terminal box. BACKGROUND

[0002] Explosion-proof terminal box is the special distribution equipment applied in various high-risk places, and civil terminal box, it is the electric distribution terminal box with explosion-proof function after various explosion-proof modification.Explosion-proof terminal box is mainly to realize the connection of cable line, the joint of cable needs to be sealed and protected, to avoid the ignition of flammable and explosive material in special place by cable joint, to cause the occurrence of accident.

[0003] Chinese patent with the publication number CN204290248U discloses an explosion-proof terminal box, which comprises a box body, a box cover and a terminal port, the box body is welded by stainless steel, the box cover is fixed by evenly arranged screws, the terminal ports are evenly distributed around the box body, and the terminal ports are provided with blind pads.

[0004] The explosion-proof terminal box in the above patent is fixed by bolt connection mode, and considering safety, a screw is arranged at a distance apart from the edge of the box cover, so that the box cover is connected with the box body firmly, and has good explosion-proof performance.However, after bolt installation and multiple opening and maintenance, the bolt is prone to local wear, which reduces the installation sealing performance, so that explosive air is easily infiltrated, increases the explosion risk in explosion-proof box, and further reduces safety and explosion-proof effect. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides an explosion-proof terminal box to solve the technical problem that the explosion-proof terminal box in the related art is fixed by bolt connection mode, but after bolt installation and multiple opening and maintenance, the bolt is prone to local wear, which reduces the installation sealing performance, so that explosive air is easily infiltrated, increases the explosion risk in explosion-proof box, and further reduces safety and explosion-proof effect.

[0006] The utility model provides an explosion-proof terminal box, which comprises a box body and a box cover, the box body and the box cover are respectively provided with a fixed plate and a connecting plate on the opposite side, the fixed plate and the connecting plate are connected by a plurality of bolts, so that the box cover can be detachably connected with the box body.

[0007] The side of the fixed plate opposite to the connecting plate is provided with a butt joint groove and two sealing pads arranged on both sides of the butt joint groove, the connecting plate is provided with a butt joint plate matched with the butt joint groove at the position corresponding to the butt joint groove, and the fixed plate is attached to the connecting plate through the two sealing pads.

[0008] Further, the side wall of the box body is provided with a plurality of terminal ports, and the terminal ports are provided with explosion-proof joints.

[0009] Further, the fixing plate, the connecting plate and the sealing gasket are all rectangular structures, the frames of the fixing plate, the connecting plate and the sealing gasket are all provided with a plurality of connecting holes for bolts to pass through, and the fixing plate is provided with a threaded groove for a bolt to be screwed into.

[0010] Further, the corners of the box body are all provided with mounting plates, and the mounting plates are provided with mounting holes.

[0011] Further, the inner wall of the butt joint groove is provided with a sealing ring, and the sealing ring and the butt joint groove provided with the sealing ring are tightly matched with the butt joint plate.

[0012] Further, the side of the connecting plate, which is opposite to the fixing plate and is located at the two sides of the butt joint plate, is provided with two sealing members.

[0013] Further, the bottom wall of the box body is provided with a through hole, the bottom of the box body is provided with a fixing sleeve which is in communication with the through hole, and the fixing sleeve movably has a piston.

[0014] Further, the fixing sleeve is provided with a threaded hole in the axial direction, and an operating rod is screwed into the threaded hole and connected with the piston.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The explosion-proof junction box has the following beneficial effects.

[0017] The explosion-proof junction box has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of an explosion-proof junction box according to an embodiment of the utility model;

[0019] Figure 2 FIG. 2 is a structural schematic view of a box body in the explosion-proof junction box according to an embodiment of the utility model;

[0020] Figure 3 FIG. 3 is a structural schematic view of a box cover in the explosion-proof junction box according to an embodiment of the utility model

[0021] Figure 4 Figure 2 is a cross-sectional view of the box body of the explosion-proof junction box according to the second embodiment of the present application;

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 100, box body;

[0024] 110, fixed plate; 111, butt joint groove; 112, sealing gasket;

[0025] 120, junction port; 130, through hole;

[0026] 200, box cover; 210, connecting plate; 211, butt plate;

[0027] 300, bolt; 400, explosion-proof joint; 500, connecting hole;

[0028] 600, mounting plate; 610, mounting hole;

[0029] 700, fixing sleeve; 800, piston; 900, operating rod.

[0030] The realization, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and beneficial effects of the present application more clear and understandable, the technical scheme of the present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0032] In the description of the present application, it should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0033] Embodiment 1

[0034] As Figures 1-3The utility model discloses an embodiment provides an explosion -proof terminal box, including box 100 and lid 200, the box 100 and lid 200 opposite side respectively are equipped with fixed plate 110 and connecting plate 210, the fixed plate 110 and connecting plate 210 between through several bolts 300 are connected to make lid 200 detachable connection box 100, the fixed plate 110 opposite connecting plate 210's one side is equipped with docking groove 111 and is equipped with two sealing pads 112 in the docking groove 111 both sides, the connecting plate 210 on the position corresponding docking groove 111 is equipped with with docking groove 111 matched docking plate 211, and the fixed plate 110 is through two sealing pads 112 and is pasted connecting plate 210.

[0035] In the utility model embodiment, through set up docking groove 111 and sealing pad 112 on the fixed plate 110 of box 100 and set up docking plate 211 on the connecting plate 210 of lid 200, when using, lid 200 is inserted in docking groove 111 through docking plate 211, then again bolt 300 is passed through lid 200 and is screwed with box 100, completes installation, through the mutual cooperation of docking groove 111, sealing pad 112 and docking plate 211, increase the friction between box door and lid 200, and then increase the sealing property of box 100.

[0036] As Figures 1-2 As shown in the utility model embodiment, the side wall of the box 100 is provided with a plurality of wiring ports 120, the wiring port 120 is provided with an explosion-proof connector 400, which is used for preventing explosion caused by sparks or high temperature in a dangerous environment, and can seal cables and wires to provide good sealing performance and prevent gas or dust from entering the box 100 through the wiring port 120.

[0037] As Figures 1-3 As shown in the utility model embodiment, the fixed plate 110, the connecting plate 210 and the sealing pad 112 are all in rectangular structure, the frame of the fixed plate 110, the connecting plate 210 and the sealing pad 112 is provided with a plurality of connecting holes 500 for the bolt 300 to pass through, the fixed plate 110 is provided with a threaded groove for the bolt 300 to screw into, the bolt 300 passes through the connecting holes 500 of the connecting plate 210 and the sealing pad 112, screws into the threaded groove of the fixed plate 110, and then fast connection is realized by tightening the bolt 300, which is convenient for later maintenance and overhaul, and the sealing pad 112 provides effective sealing under the compression of the bolt 300 to prevent liquid or gas from leaking through the connecting part.

[0038] As Figures 1-2As shown, in the embodiment of the utility model, the corner of box 100 is equipped with mounting plate 600, mounting hole 610 is equipped on mounting plate 600, multiple mounting plate 600 provides multiple fixed points, makes the installation of box 100 more stable, is not easy to shake or shift, can provide multiple installation selection with the cooperation of mounting hole 610, can select different fixed position and mode according to the scene situation, and convenient to install and disassemble.

[0039] In the structure embodiment of the utility model, the inner wall of the butt joint groove 111 is provided with a sealing ring, the sealing ring and the butt joint groove 111 provided with the sealing ring are tightly matched with the butt joint plate 211, thereby the connection sealing property between the adjacent fixed plates 110 and the connecting plates 210 can be increased, the joint is more tightly sealed, and the leakage phenomenon of the box 100 in the use process is avoided, and simultaneously, in order to make the sealing effect better, the sealing ring can be provided with double layers and is made of silica gel material.

[0040] In the embodiment of the utility model, the side of the connecting plate 210 opposite to the fixed plate 110 and located at both sides of the butt joint plate 211 is provided with two sealing members, wherein the two sealing pads 112 and the two sealing members are made of rubber material and can be installed by means of gluing, so as to facilitate replacement and installation; through the mutual cooperation of the two sealing pads 112 and the two sealing members, the effect of double-layer sealing is realized, a larger sealing contact area is provided, and simultaneously the pressure can be more uniformly distributed, the compression deformation of the single-layer sealing pad 112 is reduced, and thereby the overall sealing effect is improved.

[0041] Embodiment 2

[0042] As Figure 4 shown, the difference between the embodiment and the above-mentioned embodiment 1 lies in that, in the embodiment of the utility model, the bottom wall of the box 100 is provided with a through hole 130, the bottom of the box 100 is provided with a fixed sleeve 700 in communication with the through hole 130, a piston 800 is movably arranged in the fixed sleeve 700, by driving the piston 800 to move outward, the volume inside the sealed box 100 is increased, the air pressure is reduced to present a micro-low pressure effect, and thereby the sealing and fixing effect after installation is improved.

[0043] As Figure 4 shown, in the embodiment of the utility model, the fixed sleeve 700 is provided with a threaded hole along the axial direction, an operating rod 900 is screwed in the threaded hole, one end of the operating rod 900 extends into the fixed sleeve 700 to connect the piston 800, the piston 800 is conveniently pulled out through the operating rod 900, thereby the piston 800 is driven to move inward or outward, and the air pressure in the box 100 is conveniently adjusted.

[0044] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. An explosion-proof terminal box characterized by comprising: The utility model provides a box, including box (100) and box cover (200), and the box (100) and box cover (200) are equipped with fixed plate (110) and connecting plate (210) respectively to one side, and the fixed plate (110) and connecting plate (210) are connected through a plurality of bolts (300) between, so that box cover (200) can detachably connect box (100); The fixed plate (110) is equipped with the butt joint groove (111) and two sealing pads (112) on the side of the connecting plate (210), the connecting plate (210) is equipped with the butt joint plate (211) matched with the butt joint groove (111) on the position corresponding the butt joint groove (111), and the fixed plate (110) is connected with the connecting plate (210) through two sealing pads (112), the bottom wall of the box (100) is provided with a through hole (130), and the bottom of the box (100) is provided with a fixed sleeve (700) communicated with the through hole (130), and the fixed sleeve (700) is movably provided with a piston (800).

2. An explosion-proof junction box as defined in claim 1, wherein The side wall of the box (100) is provided with a plurality of wiring ports (120), and the wiring port (120) is provided with an explosion-proof joint (400).

3. An explosion-proof junction box as defined in claim 1, wherein The fixed plate (110), the connecting plate (210) and the sealing pad (112) are all rectangular structures, the frame of the fixed plate (110), the connecting plate (210) and the sealing pad (112) is all provided with a plurality of connecting holes (500) for the bolts (300) to pass through, and the fixed plate (110) is provided with a threaded groove for the bolt (300) to be screwed into.

4. An explosion-proof junction box as defined in claim 1, wherein The corner of the box (100) is provided with a mounting plate (600), and the mounting plate (600) is provided with a mounting hole (610).

5. An explosion-proof junction box as defined in claim 1 wherein, The inner wall of the butt joint groove (111) is provided with a sealing ring, and the sealing ring and the butt joint groove (111) provided with the sealing ring are tightly matched with the butt joint plate (211).

6. An explosion-proof junction box as defined in claim 1 wherein, The connecting plate (210) is provided with two sealing members on the side opposite to the fixed plate (110) and located on both sides of the butt joint plate (211).

7. An explosion-proof junction box as defined in claim 1 wherein, The fixed sleeve (700) is provided with a threaded hole along the axial direction, and the threaded hole is screwed with an operating rod (900), and one end of the operating rod (900) extends into the fixed sleeve (700) to connect the piston (800).

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