CN216564401U

CN216564401U - Junction box with explosion-proof structure

Info

Publication number: CN216564401U
Application number: CN202123226367.XU
Authority: CN
Inventors: 冉建锋
Original assignee: Suzhou Huayang Energy Co ltd
Current assignee: Suzhou Huayang Energy Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-17
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a junction box with an explosion-proof structure, wherein a top cover is clamped and fixed at the upper end of a box body, a wire inserting port is integrally formed at the outer side of the box body, external threads are arranged on the outer wall of the wire inserting port, a deformation groove is arranged at the outer side of the wire inserting port, a rubber sealing gasket is fixedly attached to the inner wall of the wire inserting port, the wire inserting port is connected with a port tightening knob through external threads, anti-slip threads are arranged on the outer wall of the port tightening knob, internal threads are arranged on the inner wall of the port tightening knob, the inner diameter of the port tightening knob is linearly changed, a threading hole is arranged at one end of the port tightening knob and penetrates through the end part of the port tightening knob, the wire inserting port is deformed by rotating the port tightening knob, and the wire inserting port is tightened inwards and matched with the rubber sealing gasket to fill up the gap between the wire inserting port and an electric wire, the probability that gas and water vapor enter the junction box from the junction port is reduced.

Description

Junction box with explosion-proof structure

Technical Field

The utility model relates to the technical field of equipment, in particular to a junction box with an explosion-proof structure.

Background

In home decoration, the junction box is one of electrical accessories, because the electric wire for decoration passes through the electric wire tube, the junction box is adopted for transition at the joint part of the electric wire (such as longer line or corner of the electric wire tube), the electric wire tube is connected with the junction box, and the electric wire in the wire tube is connected in the junction box to play the roles of protecting the electric wire and connecting the electric wire.

The explosion-proof junction box works under an explosion gas environment and is often used in flammable and explosive environments such as petrochemical industry, the sealing performance of the existing explosion-proof junction box is not very good, gas and water vapor easily enter the junction box from a junction port, the water vapor easily enters the junction box and is extremely easy to damage, external dangerous gas reaches a certain concentration after entering the junction box, if an internal wiring board generates an electric arc box, ignition is easily generated in the electric arc box, explosion accidents are extremely easy to occur, and therefore the junction box with an explosion-proof structure needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a junction box with an explosion-proof structure, wherein after an electric wire plug port is inserted into a box body and connected, a port tightening knob is rotated to deform the plug port, the plug port is tightened inwards and matched with a rubber sealing gasket to fill up the gap between the plug port and an electric wire, the probability that gas and water vapor enter the junction box from the junction port is reduced, and the problems in the background technology are solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a terminal box with explosion-proof structure, includes box body and top cap, the top cap joint is fixed in the upper end of box body, the outside integrated into one piece of box body has the plug wire mouth, set up the external screw thread on the outer wall of plug wire mouth, just the deformation cross the groove has been seted up in the outside of plug wire mouth, just the fixed laminating of inner wall of plug wire mouth has rubber packing pad, the plug wire mouth has the port through external screw thread threaded connection to tighten up the knob, just the port tightens up the outer wall of knob and has seted up anti-skidding line, the port tightens up the inner wall of knob and has seted up the internal thread, just the internal diameter that tightens up the port is linear change, the through wires hole has been seted up to the one end that the port tightened up the knob, the through wires hole runs through and sets up in the port and tightens up the tip of knob.

Further, the inner wall integrated into one piece of box body has the internal thread post, just the through-hole has been seted up to correspondence on the top cap, the top cap passes through fixed screw cooperation internal thread post and box body fixed mounting.

Furthermore, the internal thread columns and the through holes are correspondingly provided with four groups, and the four groups of internal thread columns and the through holes are respectively arranged at four corners of the box body and the top cover.

Further, be provided with rubber seal one on the face of linking up of box body and top cap, rubber seal one inlays the dress in the upper end of box body, box body and top cap pass through rubber seal one and closely laminate.

Further, the plug wire mouth is provided with six groups altogether, integrated into one piece has two sets of plug wire mouths on a lateral wall of box body, and every group two sets of rubber packing pad are all installed to the inner wall of plug wire mouth.

Further, an observation window is arranged on the top cover, a transparent acrylic plate is fixedly arranged inside the observation window, and the observation window and the transparent acrylic plate are sealed through waterproof glue.

Further, the bottom of box body has been seted up the installation bottom hole, the installation bottom hole is provided with four groups, and four groups the installation bottom hole set up respectively in the bottom four corners of box body, rubber seal ring two is still installed to the outside bottom of box body, rubber seal ring two sets up in the opposite face of installation bottom hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the electric wire is inserted into the box body from the wire plugging port, after the electric wire in the box body is connected, the top cover is covered on the box body, the box body and the top cover are locked and fixed by the fixing screw, the rubber sealing ring I is embedded at the upper end of the box body and can seal a gap between the box body and the top cover, and then the port tightening knob on the wire plugging port is rotated.

2. The observation window is arranged at the upper end of the top cover, so that the working condition of the internal circuit can be monitored in real time through the observation window, and the follow-up maintenance work is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the cartridge of the present invention;

FIG. 3 is a schematic back structure of the case according to the present invention;

FIG. 4 is a schematic structural view of a top cover according to the present invention;

FIG. 5 is a schematic structural view of portion A of FIG. 1 according to the present invention;

fig. 6 is a schematic view of the internal structure of the port tightening knob according to the present invention.

In the figure: 1. a box body; 2. a top cover; 101. a wire plugging port; 102. deformation and groove passing; 103. a port tightening knob; 104. threading holes; 105. a rubber gasket; 106. an internally threaded post; 107. a first rubber sealing ring; 108. mounting a bottom hole; 109. a rubber sealing ring II; 201. a through hole; 202. and (4) an observation window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a junction box with an explosion-proof structure comprises a box body 1 and a top cover 2, wherein the bottom of the box body 1 is provided with four groups of mounting bottom holes 108, the four groups of mounting bottom holes 108 are respectively arranged at four corners of the bottom of the box body 1, the bottom of the outer side of the box body 1 is also provided with a second rubber sealing ring 109, the second rubber sealing ring 109 is arranged on the opposite surface of the mounting bottom holes 108, the box body 1 is mounted by matching expansion screws with the mounting bottom holes 108 at the bottom of the box body, and the second rubber sealing ring 109 at the back of the box body 1 can be tightly pressed on a wall after mounting is finished, so that gas or water vapor is prevented from entering the box body 1 from the mounting bottom holes 108;

the top cover 2 is clamped and fixed at the upper end of the box body 1, an internal thread column 106 is integrally formed on the inner wall of the box body 1, and the top cover 2 is correspondingly provided with through holes 201, the top cover 2 is fixedly arranged with the box body 1 by matching with the internal thread columns 106 through fixing screws, four groups of internal thread columns 106 and the through holes 201 are correspondingly arranged, four groups of internal thread columns 106 and through holes 201 are respectively arranged at four corners of the box body 1 and the top cover 2, a rubber sealing ring I107 is arranged on a joint surface of the box body 1 and the top cover 2, the rubber sealing ring I107 is embedded at the upper end of the box body 1, the box body 1 and the top cover 2 are tightly attached through the rubber sealing ring I107, the box body 1 and the top cover 2 are installed through fixing screws, and after the rubber sealing ring I107 is installed, a gap between the box body 1 and the top cover 2 can be sealed, so that water vapor and gas are prevented from entering the box body 1 from the gap between the box body 1 and the top cover 2;

the outer side of the box body 1 is integrally formed with a wire inserting port 101, the outer wall of the wire inserting port 101 is provided with external threads, the outer side of the wire inserting port 101 is provided with a deformation passing groove 102, the inner wall of the wire inserting port 101 is fixedly attached with a rubber sealing gasket 105, the wire inserting port 101 is provided with six groups, one side wall of the box body 1 is integrally formed with two groups of wire inserting ports 101, and the inner wall of each group of wire inserting ports 101 is provided with two groups of rubber sealing gaskets 105;

the plug wire port 101 is connected with a port tightening knob 103 through external threads and threads, anti-skid threads are arranged on the outer wall of the port tightening knob 103, internal threads are arranged on the inner wall of the port tightening knob 103, the inner diameter of the port tightening knob 103 changes linearly, a threading hole 104 is arranged at one end of the port tightening knob 103, and the threading hole 104 penetrates through the end of the port tightening knob 103;

the top cover 2 is provided with the observation window 202, the transparent acrylic plate is fixedly arranged inside the observation window 202, the observation window 202 and the transparent acrylic plate are sealed through waterproof glue, the working condition of an internal circuit can be monitored in real time through the observation window 202, and subsequent maintenance work is facilitated;

when the device is used specifically, the device needs to be installed by matching the expansion bolt with the installation bottom hole 108 in the box body 1, after the installation, the electric wire is inserted into the box body 1 from the wire inserting port 101, after the electric wire in the box body 1 is connected, the top cover 2 is firstly covered on the box body 1, and the box body 1 and the top cover 2 are locked and fixed by fixing screws, a rubber sealing ring I107 is embedded at the upper end of the box body 1, the rubber sealing ring I107 can seal the gap between the box body 1 and the top cover 2, then the port tightening knob 103 on the plug wire port 101 is rotated, because the inner diameter of the port tightening knob 103 is linearly changed, the plug wire port 101 can be deformed and tightened inwards, and the rubber sealing gasket 105 is matched to fill the gap between the plug wire port 101 and the electric wire, so that the probability that gas and water vapor enter the junction box from the junction port is reduced, and the safety performance of the junction box is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a terminal box with explosion-proof structure, includes box body (1) and top cap (2), its characterized in that: top cap (2) joint is fixed in the upper end of box body (1), the outside integrated into one piece of box body (1) has plug wire mouth (101), external screw thread has been seted up on the outer wall of plug wire mouth (101), just deformation cross groove (102) has been seted up in the outside of plug wire mouth (101), just the inner wall of plug wire mouth (101) is fixed to be laminated with rubber packing pad (105), plug wire mouth (101) have the port through external screw thread threaded connection and tighten up knob (103), just the port tightens up the outer wall of knob (103) and has seted up anti-skidding line, the inner wall that the port tightened up knob (103) is seted up there is the internal thread, just the internal diameter that the port tightened up knob (103) is linear variation, threading hole (104) have been seted up to the one end that the port tightened up knob (103), threading hole (104) run through and set up in the tip that the port tightened up knob (103).

2. A junction box having an explosion-proof structure as set forth in claim 1, wherein: the inner wall integrated into one piece of box body (1) has internal thread post (106), just through-hole (201) have been seted up to correspondence on top cap (2), top cap (2) are through fixed screw cooperation internal thread post (106) and box body (1) fixed mounting.

3. A junction box having an explosion-proof structure as set forth in claim 2, wherein: the internal thread columns (106) and the through holes (201) are correspondingly provided with four groups, and the internal thread columns (106) and the through holes (201) are respectively arranged at four corners of the box body (1) and the top cover (2).

4. A junction box having an explosion-proof structure as set forth in claim 3, wherein: be provided with rubber seal (107) on the face of linking up of box body (1) and top cap (2), rubber seal (107) inlays the dress in the upper end of box body (1), box body (1) and top cap (2) are closely laminated through rubber seal (107).

5. The junction box with explosion-proof structure as set forth in claim 4, wherein: plug wire mouth (101) are provided with six groups altogether, integrated into one piece has two sets of plug wire mouths (101) on the lateral wall of box body (1), and every group two sets of rubber packing pad (105) are all installed to the inner wall of plug wire mouth (101).

6. The junction box with explosion-proof structure as set forth in claim 5, wherein: the utility model discloses a waterproof structure of a car roof, including top cap (2), observation window (202) have been seted up on top cap (2), the inside fixed mounting of observation window (202) has transparent inferior gram force board, just it is sealed through waterproof glue between observation window (202) and the transparent inferior gram force board.

7. The junction box with explosion-proof structure as set forth in claim 6, wherein: installation bottom hole (108) have been seted up to the bottom of box body (1), installation bottom hole (108) are provided with four groups, and four groups set up respectively in the bottom four corners of box body (1) of installation bottom hole (108), rubber seal two (109) are still installed to the outside bottom of box body (1), rubber seal two (109) set up in the opposite face of installation bottom hole (108).