CN212908547U

CN212908547U - Block terminal with inside instrument fire protection

Info

Publication number: CN212908547U
Application number: CN202021472232.4U
Authority: CN
Inventors: 李成干
Original assignee: Shandong Shengfan Electronic Technology Co ltd
Current assignee: Shandong Shengfan Electronic Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-06
Anticipated expiration: 2030-07-23

Abstract

The utility model belongs to the technical field of distribution boxes, in particular to a distribution box with internal instrument fire protection, which comprises a box body, wherein the front surface of the box body is hinged with a box door, the top surface of the box body is provided with a lifting ring, two side walls of the box body are both provided with heat dissipation holes, the inner top surface of the box body is provided with an autonomous open type fire extinguishing structure, the autonomous open type fire extinguishing structure comprises a sandbox, a bottom cover, a locking piece and a thermoplastic locking pin, and the thermoplastic locking pin penetrates through the locking piece and the sandbox; self-closing sealing components are arranged at the positions, corresponding to the heat dissipation holes, of the two sides in the box body; when the inside of the distribution box is on fire, the bottom cover of the autonomous open type fire extinguishing structure is automatically opened to discharge fire extinguishing sand to extinguish fire for instruments in the distribution box; in addition, independently close formula seal assembly and can realize sealed automatically, with block terminal and external air isolated, reach the condition of putting out a fire, well protected the safety of instrument in the block terminal, prolonged the life of device.

Description

Block terminal with inside instrument fire protection

Technical Field

The utility model belongs to the technical field of the block terminal, concretely relates to block terminal with inside instrument fire protection.

Background

The distribution box is a mass parameter on data, generally forms a low-voltage forest according to electrical wiring, requires that a switching device, a measuring instrument, a protective electrical appliance and an auxiliary device are assembled in a closed or semi-closed metal cabinet or on a screen to form the low-voltage distribution box, can be switched on or switched off by a manual or automatic switch in normal operation, and has the characteristics of small volume, simple and convenient installation, special technical performance, fixed position, unique configuration function, no field limitation, more common application, stable and reliable operation, high space utilization rate, less occupied area and environmental protection effect.

Original block terminal is when using, and fire behavior is not enough, in case the inside fire that catches fire of block terminal, and inside instrument can damage in the short time.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a block terminal with inside instrument fire protection has convenient to use and long service life's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a distribution box with internal instrument fire protection comprises a box body, wherein a box door is hinged to the front surface of the box body, a hanging ring is installed on the top surface of the box body, heat dissipation holes are formed in two side walls of the box body, an automatic opening type fire extinguishing structure is installed on the inner top surface of the box body and comprises a sandbox, a bottom cover, a locking piece and a thermoplastic locking pin, the bottom cover is hinged to the lower portion of the sandbox, the locking piece is fixed to the end face of the free end of the bottom cover, and the thermoplastic locking pin penetrates through the locking piece and the sandbox; and the positions of two sides in the box body corresponding to the heat dissipation holes are provided with self-closing sealing assemblies.

As a preferred technical solution of the present invention, the self-closing sealing assembly includes a guide post, a thermoplastic supporting block, a sealing plate, and a telescopic spring, the guide post is diagonally fixed with four pieces, the sealing plate is slidably sleeved on the sealing plate, a limiting piece is fixed to an end of the guide post, and the telescopic spring is sleeved on the guide post and located between the limiting piece and the sealing plate; thermoplastic supporting blocks are laid between the sealing plate and the inner wall of the box body.

As an optimized technical scheme of the utility model, the thermoplasticity supporting shoe is polycaprolactone plastic piece.

As an optimized technical scheme of the utility model, the closing plate is just right a side bonding of box inner wall is fixed with flexible sealing ring.

As an optimized technical scheme of the utility model, flexible sealing ring is the silicon rubber ring.

As an optimized technical solution of the present invention, the thermoplastic locking pin is a polycaprolactone plastic pin.

Compared with the prior art, the beneficial effects of the utility model are that: when the inside of the distribution box is on fire, the bottom cover of the autonomous open type fire extinguishing structure is automatically opened to discharge fire extinguishing sand to extinguish fire for instruments in the distribution box; in addition, independently close formula seal assembly and can realize sealed automatically, with block terminal and external air isolated, reach the condition of putting out a fire, well protected the safety of instrument in the block terminal, prolonged the life of device.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

fig. 2 is a schematic front view of the present invention;

fig. 3 is an enlarged schematic structural view of a portion a of fig. 2 according to the present invention;

in the figure: 1. a box body; 2. a box door; 3. a hoisting ring; 4. heat dissipation holes; 5. a sandbox; 6. a bottom cover; 7. a locking piece; 8. a thermoplastic locking pin; 9. a guide post; 10. a thermoplastic support block; 11. a sealing plate; 12. a limiting sheet; 13. a tension spring; 14. a flexible sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a distribution box with internal instrument fire protection comprises a box body 1, wherein a box door 2 is hinged to the front face of the box body 1, a hanging ring 3 is installed on the top face of the box body 1, heat dissipation holes 4 are formed in two side walls of the box body 1, an automatic opening type fire extinguishing structure is installed on the inner top face of the box body 1 and comprises a sandbox 5, a bottom cover 6, a locking piece 7 and a thermoplastic locking pin 8, the bottom cover 6 is hinged to the lower portion of the sandbox 5, the locking piece 7 is fixed to the free end face of the bottom cover 6, and the thermoplastic locking pin 8 penetrates through the locking piece 7 and the sandbox; all be equipped with the formula seal assembly that independently closes in the inside both sides of box corresponding to the position of louvre 4, when using, close bottom 6, make thermoplasticity stop pin 8 run through locking plate 7 and sandbox 5, store up in the sandbox 5 in advance and put the sand of putting out a fire in proper amount, when the inside fire of box 1, thermoplasticity stop pin 8 is automatic to become soft and melts, its intensity is not enough to support bottom 6, bottom 6 is automatic to be opened under gravity, the sand of putting out a fire is discharged, put out a fire rapidly, independently close formula seal assembly self-closing simultaneously, make 1 internal environment of box isolated with the outside air, under the environment that lacks oxygen, put out a fire rapidly.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, the self-closing sealing assembly includes a guide post 9, a thermoplastic support block 10, a sealing plate 11 and a telescopic spring 13, the guide post 9 is diagonally fixed with four pieces, the sealing plate 11 is slidably sleeved on the sealing plate 11, a limit piece 12 is fixed at an end of the guide post 9, and the telescopic spring 13 is sleeved on the guide post 9 and is located between the limit piece 12 and the sealing plate 11; thermoplastic supporting block 10 has been laid between sealing plate 11 and the 1 inner wall of box, and when box 1 was inside to be fired on fire, thermoplastic supporting block 10 became soft automatically and melts, under the elasticity promotion of expanding spring 13, sealing plate 11 closed up towards 1 inner wall of box, stopped up louvre 4, made 1 internal environment of box isolated with the outside air.

Specifically, as shown in fig. 1, fig. 2 and fig. 3, in this embodiment, the thermoplastic support block 10 is a polycaprolactone plastic block, the melting point of polycaprolactone plastic is 60 degrees celsius, and the polycaprolactone plastic block has a hardness of shore 95A when being cooled, and is sufficient to support the sealing plate 11 when being cooled, when the inside of the box body 1 is ignited, the temperature rises rapidly and exceeds the melting point of polycaprolactone plastic, polycaprolactone plastic automatically softens and melts, and the expansion spring 13 pushes the sealing plate 11 to move.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, a flexible sealing ring 14 is fixedly bonded to a side surface of the sealing plate 11 facing the inner wall of the box body 1, the sealing plate 11 is close to and attached to the inner wall of the box body 1, and the flexible sealing ring 14 is used to improve sealing performance and isolate air.

Specifically, as shown in fig. 1, fig. 2 and fig. 3, in the present embodiment, the flexible sealing ring 14 is a silicon rubber ring, and the silicon rubber ring has a high temperature resistance.

Specifically, according to fig. 1 and fig. 2, in this embodiment, the thermoplastic locking pin 8 is a polycaprolactone plastic pin, the melting point of polycaprolactone plastic is 60 degrees centigrade, the hardness of shore 95A is achieved when the polycaprolactone plastic is cooled, the bottom cover 6 is sufficiently supported when the polycaprolactone plastic is cooled, when the box body 1 is ignited, the temperature can rapidly rise and exceed the melting point of polycaprolactone plastic, the polycaprolactone plastic automatically softens and melts, the bottom cover 6 can be opened under the gravity of the bottom cover and the gravity of fire extinguishing sand, and the fire extinguishing sand is discharged.

The utility model discloses a theory of operation and use flow: when the distribution box is used, the bottom cover 6 is closed, the thermoplastic locking pin 8 penetrates through the locking piece 7 and the sandbox 5, a proper amount of fire extinguishing sand is stored in the sandbox 5 in advance, when the interior of the box body 1 is on fire, the thermoplastic locking pin 8 automatically softens and melts, the strength of the thermoplastic locking pin is not enough to support the bottom cover 6, the bottom cover 6 is automatically opened under gravity, the fire extinguishing sand is discharged, and the fire is rapidly extinguished;

when the inside of box 1 is on fire, thermoplasticity supporting shoe 10 is automatic to become soft and melts, and under the elasticity promotion of expanding spring 13, closing plate 11 draws close towards box 1 inner wall, plugs up louvre 4, makes 1 internal environment of box isolated with the outside air, under the environment that lacks oxygen, puts out a fire rapidly, puts out a fire and accomplishes the back, treats 1 cooling back of box, can open chamber door 2, overhauls the internal instrument.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a block terminal with internal instrument fire protection, includes box (1), the front of box (1) articulates there is chamber door (2), rings (3) are installed to the top surface of box (1) louvre (4), its characterized in that have all been seted up on the both sides wall of box (1): an automatic opening type fire extinguishing structure is arranged on the inner top surface of the box body (1) and comprises a sandbox (5), a bottom cover (6), a locking piece (7) and a thermoplastic locking pin (8), the bottom cover (6) is hinged below the sandbox (5), the locking piece (7) is fixed on the end surface of the free end of the bottom cover (6), and the thermoplastic locking pin (8) penetrates through the locking piece (7) and the sandbox (5); and the positions of two sides in the box body (1) corresponding to the heat dissipation holes (4) are respectively provided with an automatic closing type sealing assembly.

2. The electrical box of claim 1, wherein said electrical box has internal instrument fire protection, said electrical box further comprising: the self-closing type sealing assembly comprises guide columns (9), thermoplastic supporting blocks (10), sealing plates (11) and telescopic springs (13), wherein four guide columns (9) are diagonally fixed, the sealing plates (11) are sleeved on the sealing plates (11) in a sliding mode, limiting pieces (12) are fixed at the end parts of the guide columns (9), and the telescopic springs (13) are sleeved on the guide columns (9) and located between the limiting pieces (12) and the sealing plates (11); and a thermoplastic supporting block (10) is laid between the sealing plate (11) and the inner wall of the box body (1).

3. The electrical box with fire protection of internal instruments according to claim 2, wherein: the thermoplastic supporting block (10) is a polycaprolactone plastic block.

4. The electrical box with fire protection of internal instruments according to claim 2, wherein: and a flexible sealing ring (14) is fixedly bonded on one side surface of the sealing plate (11) opposite to the inner wall of the box body (1).

5. The electrical box with fire protection of internal instruments according to claim 4, wherein: the flexible sealing ring (14) is a silicon rubber ring.

6. The electrical box of claim 1, wherein said electrical box has internal instrument fire protection, said electrical box further comprising: the thermoplastic locking pin (8) is a polycaprolactone plastic pin shaft.