CN217789240U

CN217789240U - Explosion-proof high-voltage junction box

Info

Publication number: CN217789240U
Application number: CN202221684418.5U
Authority: CN
Inventors: 陈家宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-11
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses an explosion-proof high-pressure junction box, which comprises a housin, two fixed blocks of bottom inner wall fixedly connected with of casing, the top fixedly connected with fixing base of fixed block, two mounting holes have been seted up to one side of fixing base, and fixedly connected with copper pipe in the mounting hole, the top swing joint of fixing base has two screws, and the one end of screw passes fixing base and copper pipe, the top swing joint of fixing base has the pressure frame, and presses frame and screw contactability, one side fixedly connected with fixture block of pressure frame, first draw-in groove and second draw-in groove have been seted up at the top of fixing base. The utility model discloses not only can use through the cooperation of first draw-in groove and second draw-in groove, make the screw obtain the compaction, improve the explosion-proof of device, can increase the frictional force between pressure frame and the screw through the rubber pad moreover, improve the antiskid effect of device, can also make casing and cover connection inseparabler through sealed the pad, improve the leakproofness of device.

Description

Explosion-proof high-voltage junction box

Technical Field

The utility model relates to a terminal box technical field especially relates to an explosion-proof type high-voltage junction box.

Background

The junction box is one of electrical accessories, wires penetrate through the wire tube when being laid, the junction box is used as a transition part when the wires are connected at the joint part of the wires, such as a long line, or the wire tube is required to turn, the wire tube is connected with the junction box, and the wires in the wire tube are connected in the junction box to play roles in protecting the wires and connecting the wires.

When the conventional high-voltage junction box is used, the junction terminal is compacted and fastened by a screw and used for a long time, the screw is easy to loosen, electric sparks are generated at the contact position of the screw and the junction terminal, and the risk of explosion is generated, so that the explosion-proof high-voltage junction box is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an explosion-proof high-voltage junction box.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an explosion-proof type high-pressure junction box, includes the casing, two fixed blocks of the bottom inner wall fixedly connected with of casing, two mounting holes have been seted up to the top fixedly connected with fixing base of fixed block, one side of fixing base, fixedly connected with copper pipe in the mounting hole, the top swing joint of fixing base has two screws, and the one end of screw passes fixing base and copper pipe, the top swing joint of fixing base has the pressure frame, and presses frame and screw contactability, one side fixedly connected with fixture block of pressure frame, first draw-in groove and second draw-in groove have been seted up at the top of fixing base, and first draw-in groove and second draw-in groove all with fixture block joint, the bottom fixedly connected with extension spring of pressure frame, and the extension spring is fixed mutually with the fixing base, the top fixedly connected with pull ring of pressure frame.

As the utility model discloses scheme further again, press two rubber pads of bottom fixedly connected with of frame, and the rubber pad can contact with the screw.

As the utility model discloses scheme further again, two locating holes have been seted up to the bottom of fixing base, two reference columns of the bottom inner wall fixedly connected with of casing, and reference column and locating hole can peg graft.

As the utility model discloses scheme further again, the top fixedly connected with apron of casing, the inside fixedly connected with explosion-proof board of apron.

As the utility model discloses further scheme again, the top fixedly connected with of casing is sealed fills up, and sealed pad can contact with the apron.

As the utility model discloses further scheme again, the line hole has all been seted up to the both sides of casing, crosses the downthehole joint of line and has had the protecting wire cover.

As the utility model discloses further scheme again, the equal fixedly connected with of the equal fixedly connected with muscle of the multilateral inner wall of casing, a plurality of inclined planes have all been seted up at the top of first draw-in groove and second draw-in groove.

As a further proposal, the two outer walls of the casing are fixedly connected with fixing lugs, and one side of the fixing lugs is provided with fixing holes.

The utility model has the advantages that:

1. the cooperation through first draw-in groove and second draw-in groove is used, pulling and clockwise rotation pull ring, thereby make the pressure frame drive fixture block and second draw-in groove break away from the block, loosen the pull ring, the extension spring kick-backs to reset and makes the pressure frame drive the fixture block again with first draw-in groove looks block, thereby make the screw obtain the compaction, avoid carrying out compaction fastening and long-time the back of using with the screw to binding post, the screw is not hard up easily, and then lead to the electric spark to appear in screw and binding post contact department, the risk of deflagration has, the explosiveness of device has been improved.

2. Through the setting of installing the rubber pad on pressing the frame, the rubber pad can increase the frictional force between pressing frame and the screw, and then avoids the screw not hard up, has improved the antiskid effect of device.

3. Through the setting of installing sealed the pad on the casing, sealed pad can make casing and cover connection inseparabler, and then avoids the outside dust of casing to get into inside the casing from the junction of casing and apron, causes wire connection department deflagration, has improved the leakproofness of device.

4. Through the setting of installation wire sheath on the casing, the wire sheath can be protected the electric wire, avoids electric wire and casing direct contact, leads to long-time use back electric wire to appear damaging, has improved the protecting effect of device.

Drawings

Fig. 1 is a schematic perspective view of an explosion-proof high-voltage junction box according to the present invention;

fig. 2 is a schematic view of an internal structure of an explosion-proof high-voltage junction box according to the present invention;

fig. 3 is a schematic view of a partial cross-sectional structure of an explosion-proof high-voltage junction box according to the present invention.

In the figure: 1. a cover plate; 2. a housing; 3. fixing the ear; 4. a wire protecting sleeve; 5. an explosion-proof plate; 6. fixing the ribs; 7. pressing a frame; 8. a gasket; 9. a fixed seat; 10. a fixed block; 11. a rubber pad; 12. a screw; 13. a first card slot; 14. a clamping block; 15. a pull ring; 16. a bevel; 17. positioning holes; 18. mounting holes; 19. a second card slot; 20. a tension spring; 21. a positioning column; 22. copper tubing.

Detailed Description

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., indicating orientations or positional relationships, the orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description.

Referring to fig. 1-3, an explosion-proof high-voltage junction box comprises a housing 2, two fixing blocks 10 are fixed on the inner wall of the bottom of the housing 2 through bolts, a fixing seat 9 is fixed on the top of the fixing block 10 through bolts, two mounting holes 18 are formed in one side of the fixing seat 9, a copper pipe 22 is bonded in the mounting holes 18, two screws 12 are connected to the top of the fixing seat 9 in a threaded manner, one end of each screw 12 penetrates through the fixing seat 9 and the copper pipe 22, a pressing frame 7 is inserted into the top of the fixing seat 9, the pressing frame 7 can be contacted with the screws 12, a clamping block 14 is fixed on one side of the pressing frame 7 through bolts, a first clamping groove 13 and a second clamping groove 19 are formed in the top of the fixing seat 9, the first clamping groove 13 and the second clamping groove 19 can be clamped with the clamping block 14, a tension spring 20 is welded on the bottom of the pressing frame 7, the tension spring 20 is fixed with the fixing seat 9, and a pull ring 15 is fixed on the top of the pressing frame 7 through bolts, when the wires need to be connected and fixed, firstly, the pull ring 15 is pulled upwards, the pull ring 15 is stressed to enable the pressing frame 7 to drive the clamping block 14 to move upwards until the clamping block 14 is disengaged from the first clamping groove 13, the pressing frame 7 moves upwards to enable the tension spring 20 to be stressed and extended to generate tension, then the pressing frame 7 is rotated anticlockwise to a proper angle, the pull ring 15 is loosened, then the tension spring 20 rebounds to reset to enable the pressing frame 7 to drive the clamping block 14 to move downwards and be engaged with the second clamping groove 19, then the screw 12 is rotated anticlockwise to enable the screw 12 to move upwards, then the wiring terminals connected with the wires are respectively inserted into the copper tubes 22, then the screw 12 is rotated clockwise to enable the screw 12 to move downwards and compact the wiring terminals, then the pull ring 15 is pulled upwards and rotated clockwise, so that the pressing frame 7 drives the clamping block 14 to be disengaged from the second clamping groove 19, the pull ring 15 is loosened, the tension spring 20 rebounds and resets to enable the pressing frame 7 to drive the clamping block 14 to be clamped with the first clamping groove 13 again, so that the screw 12 is compacted, the situation that the wiring terminal is compacted and fastened by the screw 12 and used for a long time is avoided, the screw 12 is easy to loosen, electric sparks are generated at the contact position of the screw 12 and the wiring terminal, and the risk of deflagration is generated.

The utility model is to be described, two rubber pads 11 are bonded on the bottom of the pressing frame 7, and the rubber pads 11 can contact with the screws 12, the rubber pads 11 can increase the friction force between the pressing frame 7 and the screws 12, thereby avoiding the screws 12 from loosening, two positioning holes 17 are formed on the bottom of the fixing base 9, two positioning columns 21 are fixed on the inner wall of the bottom of the shell 2 through bolts, and the positioning columns 21 can be inserted with the positioning holes 17, the fixing base 9 can be positioned and installed through the positioning columns 21 and the positioning holes 17, the cover plate 1 is fixed on the top of the shell 2 through bolts, the explosion-proof plate 5 is fixed inside the cover plate 1 through bolts, the explosion-proof plate 5 can increase the strength of the cover plate 1, the sealing gasket 8 is bonded on the top of the shell 2, the sealing gasket 8 can contact with the cover plate 1, the sealing gasket 8 can make the shell 2 and the cover plate 1 more tightly connected, and then avoid the outside dust of casing 2 to get into inside casing 2 from casing 2 and apron 1's junction, cause the deflagration of wire connection department, the line hole has all been seted up to the both sides of casing 2, it has wire sheath 4 to cross the downthehole joint of line, wire sheath 4 can protect the electric wire, avoid electric wire and casing 2 direct contact, lead to long-time back electric wire to appear damaging, casing 2's multilateral inner wall all has fixed muscle 6 through the bolt fastening, fixed muscle 6 can increase casing 2's intensity, a plurality of inclined planes 16 have all been seted up at the top of first draw-in groove 13 and second draw-in groove 19, inclined plane 16 can assist fixture block 14 to insert in first draw-in groove 13 and the second draw-in groove 19, casing 2's both sides outer wall all has fixed ear 3 through the bolt fastening, the fixed orifices has been seted up to one side of fixed ear 3, fixed ear 3 can make things convenient for the staff to install fixedly casing 2.

The working principle is as follows: when the wires need to be connected and fixed, firstly, the pull ring 15 is pulled upwards, the pull ring 15 is stressed to enable the pressing frame 7 to drive the clamping block 14 to move upwards until the clamping block 14 is separated from the first clamping groove 13, the pressing frame 7 moves upwards to enable the tension spring 20 to be stressed and extend to generate tension, then the pressing frame 7 is rotated anticlockwise to a proper angle, the pull ring 15 is loosened, then the tension spring 20 rebounds and resets to enable the pressing frame 7 to drive the clamping block 14 to move downwards and be clamped with the second clamping groove 19, then the screw 12 is rotated anticlockwise to enable the screw 12 to move upwards, then the wiring terminals connected with the wires are respectively inserted into the copper tube 22, then the screw 12 is rotated clockwise to enable the screw 12 to move downwards and be compacted on the wiring terminals, then the pull ring 15 is pulled upwards and rotated clockwise to enable the pressing frame 7 to drive the clamping block 14 to be separated from the second clamping groove 19, the pull ring 15 is loosened, the tension spring 20 rebounds and resets to enable the pressing frame 7 to drive the clamping block 14 to be clamped with the first clamping groove 13 again, and therefore the screw 12 is compacted, and the risk of electric sparks at the contact position of the wiring terminals is avoided after the screw 12 is fastened and used for a long time.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct.

Claims

1. The utility model provides an explosion-proof high-pressure junction box, includes casing (2), its characterized in that, two fixed blocks (10) of bottom inner wall fixedly connected with of casing (2), the top fixedly connected with fixing base (9) of fixed block (10), two mounting holes (18) have been seted up to one side of fixing base (9), fixedly connected with copper pipe (22) in mounting hole (18), the top swing joint of fixing base (9) has two screws (12), and the one end of screw (12) passes fixing base (9) and copper pipe (22), the top swing joint of fixing base (9) has pressure frame (7), and presses frame (7) and screw (12) contactable, one side fixedly connected with fixture block (14) of pressure frame (7), first draw-in groove (13) and second draw-in groove (19) have been seted up at the top of fixing base (9), and first draw-in groove (13) and second draw-in groove (19) all can joint with fixture block (14), the bottom fixedly connected with extension spring (20) of pressure frame (7), and extension spring (20) are fixed mutually fixed with fixing base (9), the top fixedly connected with pull ring (15) of pressure frame (7).

2. An explosion-proof high-voltage junction box according to claim 1, characterized in that two rubber pads (11) are fixedly connected to the bottom of the pressing frame (7), and the rubber pads (11) can contact with the screws (12).

3. An explosion-proof high-voltage junction box according to claim 1, wherein two positioning holes (17) are formed at the bottom of the fixing seat (9), two positioning columns (21) are fixedly connected to the inner wall of the bottom of the housing (2), and the positioning columns (21) and the positioning holes (17) can be inserted and connected.

4. An explosion-proof high-voltage junction box according to claim 1, characterized in that a cover plate (1) is fixedly connected to the top of the housing (2), and an explosion-proof plate (5) is fixedly connected to the inside of the cover plate (1).

5. An explosion-proof high-voltage junction box according to claim 4, characterized in that a sealing gasket (8) is fixedly connected to the top of the housing (2), and the sealing gasket (8) can contact with the cover plate (1).

6. An explosion-proof high-voltage junction box according to claim 5, characterized in that both sides of the housing (2) are provided with wire through holes, and wire protection sleeves (4) are clamped in the wire through holes.

7. An explosion-proof high-voltage junction box according to claim 6, characterized in that the inner walls of the multiple sides of the housing (2) are fixedly connected with fixing ribs (6), and the tops of the first clamping groove (13) and the second clamping groove (19) are respectively provided with a plurality of inclined surfaces (16).

8. An explosion-proof high-voltage junction box according to claim 7, characterized in that the outer walls of both sides of the housing (2) are fixedly connected with fixing lugs (3), and one side of the fixing lugs (3) is provided with fixing holes.