CN214704876U

CN214704876U - Building is fire prevention early warning device for block terminal

Info

Publication number: CN214704876U
Application number: CN202120896709.XU
Authority: CN
Inventors: 陈华平; 张经纬
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-12
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a building is fire prevention early warning device for block terminal, include: the box, the box lower extreme is provided with anchor formula support frame, the through wires hole that one row of equidistance was arranged is seted up at box diapire middle part, alarm device is installed to the box upper end, box inboard middle part upper portion is equipped with the baffle, and baffle downside mid-mounting has temperature sensor. The utility model discloses when leading to taking place the short circuit and catching fire because of the ageing inefficacy of circuit breaker, temperature sensor is respectively to alarm device and solenoid valve signals, and alarm device sends out the police dispatch newspaper and reminds near staff, and the solenoid valve is opened, and the deactivation jar passes through the conveyer pipe and carries the fire extinguishing agent to first shower and second shower respectively, and sprays the fire extinguishing agent in to the box through the shower head to reach the effect of in time putting out a fire, prevent that the electronic component in the box from being burnt out.

Description

Building is fire prevention early warning device for block terminal

Technical Field

The utility model belongs to the technical field of the construction, especially, relate to a building is fire prevention early warning device for block terminal.

Background

The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state.

At present, the distribution box is widely applied to a construction site in a building, and the use of the distribution box greatly facilitates the power supply requirement of the construction site.

However, the block terminal of job site is because long-term used repeatedly, leads to the ageing malfunctioning of circuit breaker in the block terminal easily to take place the short circuit easily and catch fire, cause the electronic component in the block terminal to be burnt, and the welded supporting leg of zero hour is direct to be supported subaerial for most of the block terminal of job site, takes place easily to empty, especially meets the ground of ponding, and after empting, water can get into the block terminal and lead to the accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a building is fire prevention early warning device for block terminal to the block terminal of solving the job site leads to the ageing failure of circuit breaker in the block terminal easily owing to use repeatedly for a long time, thereby takes place the short circuit easily and catches fire, causes the technical problem that electronic component in the block terminal was burnt out.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a building is fire prevention early warning device for block terminal, its includes the box, the box lower extreme is provided with anchor formula support frame, the through wires hole that one row of equidistance was arranged is seted up at box diapire middle part, alarm device is installed to the box upper end.

A clapboard is arranged at the upper part of the middle part of the inner side of the box body, a temperature sensor is arranged at the middle part of the lower side surface of the clapboard, a storage battery is arranged at the upper right corner in the box body, an inactivation tank is arranged at the upper side of the partition plate in the box body, one end of the inactivation tank is communicated with a conveying pipe, and the middle part of the delivery pipe is provided with an electromagnetic valve, one end of the delivery pipe, which is far away from the inactivation tank, passes through the partition plate and is connected with a tee joint below the partition plate, the delivery pipe is respectively communicated with a first spray pipe and a second spray pipe through the tee joint, and the first spray pipe and the second spray pipe are both provided with spray headers, one end of the second spray pipe far away from the tee joint is connected with a passive power-off device at the middle lower part of the box body, the inside circuit breaker of installing near passive power-off device of box, be connected with connecting wire and external live wire on the passive power-off device, and the live wire articulate on passive power-off device passes through connecting wire and the circuit breaker.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the passive power-off device comprises a connecting pipe, a pressure pipe and a shell, wherein the middle part of one end of the pressure pipe is communicated with one end of the connecting pipe, the other end of the pressure pipe is fixedly connected with one end of the shell, the outer side surface of the connecting pipe is provided with an external thread structure, the inner side of the pressure pipe is connected with a piston in a sliding way, the middle part of one side of the piston, which is far away from the connecting pipe, is fixedly connected with an insulating slide bar, one end of the insulating slide bar, which is far away from the piston, penetrates through the middle part of one end of the pressure pipe, which is far away from the connecting pipe, and extends into the shell, one end of the insulating slide bar, which is inside the shell, is fixedly connected with a triangular conductive block, one end of the insulating slide bar, which is far away from the insulating slide bar, penetrates through the middle part of one end of the shell, which is far away from the triangular conductive block, is outside the shell, and is fixedly connected with a pressing plate, and the middle parts of the upper side and the lower side of the shell are symmetrically provided with an electric joint component, and the two electrical connector assemblies are electrically connected with the triangular conductive block,

the utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the electric property joint subassembly includes insulation support, contact tube and electrically conductive slide bar, the outer surface of contact tube is located to the insulation support cover, insulation support one end and shell lateral wall middle part fixed connection, and contact tube one end and the inboard intercommunication of shell, the one end and the electrically conductive slide bar outside surface one end sliding connection that the shell is close to the contact tube inboard, the one end that the contact tube was kept away from to the electrically conductive slide bar stretches into in the shell, and electrically conductive slide bar stretches into the insulating spacing dish of a tip outside fixed surface connection in the shell, and electrically conductive slide bar outside surface overlaps between insulating spacing dish and shell inside wall and is equipped with reset spring, electrically conductive slide bar stretches into the electrically conductive spring leaf of one end fixed connection in the shell, and electrically conductive spring leaf keeps away from electrically conductive slide bar's a side and triangle-shaped conducting block contact.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: one side surface of the conductive spring piece, which is far away from the conductive sliding rod, is provided with a slope surface, and the upper side surface and the lower side surface of the triangular conductive block are provided with slope-shaped structures corresponding to the slope surface of the conductive spring piece.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: one end and the middle part of the wall of the insulating sleeve, which are far away from the shell, are respectively connected with a fastening screw and a limiting screw in a meshed mode, and the tail ends of the fastening screw and the limiting screw penetrate through the wall of the conductive tube and stretch into the conductive tube.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the anchor formula support frame includes two vertical supporting legs that parallel, two supporting leg upper end respectively with box lower extreme left and right sides fixed connection, two middle part fixedly connected with consolidates the horizontal pole between the supporting leg, the fore-and-aft horizontal stand of supporting leg lower extreme fixedly connected with, and the both ends department of horizontal stand has all seted up the anchor hole.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the second spraying pipe is far away from the tee joint and communicated with a connecting sleeve, the inner wall of the connecting sleeve corresponds to the external thread structure on the connecting pipe and is provided with an internal thread structure, and a sealing rubber ring is arranged at one end, close to the second spraying pipe, of the inner side of the connecting sleeve.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the storage battery is respectively and electrically connected with the temperature sensor, the electromagnetic valve and the alarm device, and the temperature sensor is respectively and electrically connected with the electromagnetic valve and the alarm device.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the bar window has all been seted up in the middle part of the wall of the left and right sides of box, and the box outside all is provided with the bar eaves of downward sloping on every fenestra upper portion of bar window.

The utility model adopts the above be used for building fire prevention early warning device for block terminal, further: the fixed cover that a row of equidistance was arranged is overlapped to deactivation jar outside surface cover, and fixed cover lower extreme and baffle side fixed connection on.

The utility model has the advantages that:

1. when the utility model is short-circuited and catches fire due to aging failure of the circuit breaker, the temperature sensor sends signals to the alarm device and the solenoid valve respectively, the alarm device sends out an alarm to remind nearby workers, the solenoid valve is opened, the inactivation tank sends fire extinguishing agents to the first spray pipe and the second spray pipe respectively through the conveying pipes, and the fire extinguishing agents are sprayed into the box body through the spray heads, so as to achieve the effect of extinguishing fire in time and prevent electronic elements in the box body from being burnt; when the fire extinguishing agent is conveyed into the second spray pipe, the pressure intensity in the second spray pipe is greater than the pressure intensity in the air pressure pipe, so that the piston slides towards the shell, the piston pushes the insulating slide rod and the triangular conductive block to move, the triangular conductive block is separated from the conductive spring pieces on the two sides, the two conductive spring pieces are respectively clamped on the two sides of the insulating slide rod, the electric connector assemblies on the two sides of the passive power-off device cannot be electrified, the power supply is cut off, and the influence of electric sparks generated when an internal circuit is burnt out by a fire disaster on nearby parts is avoided.

2. The utility model discloses the anchor formula support frame that sets up in can be through the inflation screw that matches with the anchor hole with anchor formula support frame and cement ground anchor, the reinforcing bar that also can be bent into the L type passes through the anchor hole with anchor formula support frame and soil property ground anchor to guarantee the stability of block terminal, avoid the block terminal to take place to empty and cause the full accident.

Drawings

The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:

FIG. 1 is a schematic sectional view of a front view of a fire-proof early warning device for a building distribution box according to an embodiment;

fig. 2 is a schematic perspective view of an anchoring type support frame according to an embodiment of the present invention;

fig. 3 is a schematic front sectional view of a passive power cutoff device according to an embodiment of the present invention;

fig. 4 is a schematic view of a front view cross-sectional structure of a connecting sleeve according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a box body; 2. supporting legs; 3. reinforcing the cross bar; 4. a horizontal frame; 5. an anchoring hole; 6. a strip window; 7. a strip-shaped eave; 8. threading holes; 9. a partition plate; 10. a temperature sensor; 11. a storage battery; 12. an inactivation tank; 13. fixing a sleeve; 14. a delivery pipe; 15. an electromagnetic valve; 16. a tee joint; 17. a first shower pipe; 18. a second shower pipe; 19. a shower head; 20. a passive power-off device; 2001. a connecting pipe; 2002. a pneumatic tube; 2003. a housing; 2004. an external thread structure; 2005. a piston; 2006. an insulating slide bar; 2007. a triangular conductive block; 2008. an insulating push rod; 2009. pressing a plate; 2010. an insulating sleeve; 2011. a conductive tube; 2012. fastening screws; 2013. a limiting screw; 2014. a conductive slide bar; 2015. a conductive spring plate; 2016. an insulating limiting disc; 2017. a return spring; 21. connecting sleeves; 22. sealing the rubber ring; 23. an internal thread structure; 24. connecting a lead; 25. connecting a live wire externally; 26. a circuit breaker; 27. and an alarm device.

Detailed Description

Hereinafter, the embodiment of the utility model discloses a fire prevention early warning device for building block terminal will be described with reference to the drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

Fig. 1-4 show the utility model relates to a building is fire prevention early warning device for block terminal of embodiment, it includes: the box body 1, the lower end of the box body 1 is provided with an anchoring type support frame, the anchoring type support frame comprises two supporting legs 2 which are vertically arranged side by side, the upper ends of the two supporting legs 2 are respectively and fixedly connected with the left side and the right side of the lower end of the box body 1, the middle part between the two supporting legs 2 is fixedly connected with a reinforcing cross rod 3, the lower ends of the supporting legs 2 are fixedly connected with a longitudinal horizontal frame 4, the two ends of the horizontal frame 4 are respectively provided with an anchoring hole 5, the anchoring type support frame can be anchored with cement ground through an expansion screw matched with the anchoring hole 5 by the arrangement of the anchoring hole 5, the anchoring type support frame can also be anchored with the soil ground through the anchoring hole 5 by a steel bar which is bent into an L shape, the middle parts of the left side wall and the right side wall of the box body 1 are respectively provided with a bar-shaped window 6, the upper part of each window hole of the bar-shaped window 6 outside the box body 1 is provided with a bar-shaped eaves 7 which is inclined downwards, through the setting of bar window 6, can improve the radiating effect of box 1, through the setting of bar eaves 7, can prevent that the rainwater from passing through in the 6 flow in boxes 1 of bar window, the through wires hole 8 that one row of equidistance was arranged is seted up at 1 diapire middle part of box, alarm device 27 is installed to 1 upper end of box.

The upper portion of the middle part of the inner side of the box body 1 is provided with a partition board 9, the middle of the lower side surface of the partition board 9 is provided with a temperature sensor 10, the upper right corner of the box body 1 is provided with a storage battery 11, the upper side of the partition board 9 of the box body 1 is provided with an inactivation tank 12, concretely, the outer side surface of the inactivation tank 12 is sleeved with a row of fixed sleeves 13 arranged at equal intervals, the lower ends of the fixed sleeves 13 are fixedly connected with the upper side surface of the partition board 9, one end of the inactivation tank 12 is communicated with a conveying pipe 14, the middle of the conveying pipe 14 is provided with an electromagnetic valve 15, one end of the conveying pipe 14 far away from the inactivation tank 12 penetrates through the partition board 9 and is connected with a tee joint 16 below the partition board 9, the conveying pipe 14 is respectively communicated with a first spraying pipe 17 and a second spraying pipe 18 through the tee joint 16, the first spraying pipe 17 and the second spraying pipe 18 are both provided with spraying heads 19, one end of the second spraying pipe 18 far away from the tee joint 16 is connected with a passive power-off device 20 at the middle lower portion of the box body 1, the inside circuit breaker 26 of installing near passive power-off device 20 of box 1, be connected with connecting wire 24 and external live wire 25 on the passive power-off device 20, and passive power-off device 20 passes through connecting wire 24 and is connected with the live wire joint on the circuit breaker 26.

The passive power-off device 20 comprises a connecting pipe 2001, a pneumatic pipe 2002 and a shell 2003, wherein the middle of one end of the pneumatic pipe 2002 is communicated with one end of the connecting pipe 2001, the other end of the pneumatic pipe 2002 is fixedly connected with one end of the shell 2003, an external thread structure 2004 is arranged on the outer side surface of the connecting pipe 2001, a piston 2005 is connected to the inner side of the pneumatic pipe 2002 in a sliding manner, an insulating slide rod 2006 is fixedly connected to the middle of one side of the piston 2005, which is far away from the connecting pipe 2001, one end of the insulating slide rod 2006, which is far away from the piston 2005, penetrates through the middle of one end of the pneumatic pipe 2002, which is far away from the connecting pipe 2001, and extends into the shell 2003, a triangular conductive block 2007 is fixedly connected to one end of the insulating slide rod 2006 in the shell 2003, an insulating push rod 2008 is fixedly connected to one end of the triangular conductive block 2007, which is far away from the pneumatic pipe 2002, and one end of the insulating push rod 2008 is far away from the triangular conductive block 2007, a pressing plate 2009 is fixedly connected outside the shell 2003, electric joint components are symmetrically arranged in the middle of the upper side and the lower side of the shell 2003, and are electrically connected with the triangular conductive block 2007, each electric joint component comprises an insulating sleeve 2010, a conductive pipe 2011 and a conductive sliding rod 2014, the insulating sleeve 2010 is sleeved on the outer side surface of the conductive pipe 2011, one end of the insulating sleeve 2010 is fixedly connected with the middle of the outer side wall of the shell 2003, one end of the conductive pipe 2011 is communicated with the inner side of the shell 2003, one end and the middle of the pipe wall of the insulating sleeve 2010, which is far away from the shell 2003, are respectively engaged and connected with a fastening screw 2012 and a limiting screw 2013, the tail ends of the fastening screw 2012 and the limiting screw 2013 penetrate through the pipe wall of the conductive pipe 2011 and extend into the conductive pipe 2011, and the wire core of the wire can be fixed by tightening the fastening screw 20112012 when the wire core of the wire is inserted into the conductive pipe, thereby realizing the connection of the electric connector and the electric wire, the limit screw 2013 is always in a screwed state, the tail end of the wire core of the electric wire can be blocked at the middle part of the inner side of the conductive tube 2011, the wire core of the electric wire is prevented from extending into the outer shell 2003, one end of the inner side of the conductive tube 2011 close to the outer shell 2003 is in sliding connection with one end of the outer side surface of the conductive slide bar 2014, one end of the conductive slide bar 2014 far away from the conductive tube 2011 extends into the outer shell 2003, the outer side surface of one end part of the conductive slide bar 2014 extending into the outer shell 2003 is fixedly connected with the insulation limit disc 2016, the outer side surface of the conductive slide bar 2014 is sleeved with the return spring 2017 between the insulation limit disc 2016 and the inner side wall of the outer shell 2003, one end of the conductive slide bar 2014 extending into the outer shell 2003 is fixedly connected with the conductive spring piece 2015, one side surface of the conductive spring piece 2015 far away from the conductive slide bar 2014 is contacted with the triangular block 2007, specifically, one side surface far away from the conductive slide bar 2014 is set as a slope, and the upper and lower sides of the triangular conductive block 2007 are set to be a slope structure corresponding to the slope surface of the conductive spring 2015.

A connecting sleeve 21 is communicated with the second spray pipe 18 far away from the tee joint 16, an internal thread structure 23 is arranged on the inner wall of the connecting sleeve 21 corresponding to the external thread structure 2004 on the connecting pipe 2001, and a sealing rubber ring 22 is arranged at one end, close to the second spray pipe 18, of the inner side of the connecting sleeve 21.

The storage battery 11 is respectively electrically connected with the temperature sensor 10, the electromagnetic valve 15 and the alarm device 27, and the temperature sensor 10 is respectively electrically connected with the electromagnetic valve 15 and the alarm device 27.

The working principle is as follows:

when the utility model is short-circuited and catches fire due to aging failure of the circuit breaker 26, the temperature sensor 10 sends signals to the alarm device 27 and the solenoid valve 15 respectively, the alarm device 27 sends out an alarm to remind nearby workers, the solenoid valve 15 is opened, the inactivation tank 12 conveys fire extinguishing agents to the first spray pipe 17 and the second spray pipe 18 through the conveying pipe 14 respectively, and sprays the fire extinguishing agents into the box body 1 through the spray head 19 to achieve the effect of timely extinguishing fire, and electronic elements in the box body 1 are prevented from being burnt; when the fire extinguishing agent is conveyed into the second spraying pipe 18, the pressure in the second spraying pipe 18 is higher than the pressure in the air pressure pipe 2002, so that the piston 2005 slides towards the shell 2003, the piston 2005 pushes the insulating slide rod 2006 and the triangular conductive block 2007 to move, the triangular conductive block 2007 is separated from the conductive spring pieces 2015 on the two sides, the two conductive spring pieces 2015 are respectively clamped on the two sides of the insulating slide rod 2006, the electric connection assemblies on the two sides of the passive power-off device 20 cannot be electrified, the power supply is cut off, and the influence of electric sparks generated when a fire burns out an internal circuit on the nearby parts is avoided.

The utility model discloses the anchor formula support frame that sets up in can be through the inflation screw that matches with anchor hole 5 with anchor formula support frame and cement ground anchor, the reinforcing bar that also can be used to be crooked into the L type passes through anchor hole 5 with anchor formula support frame and soil property ground anchor to guarantee the stability of block terminal, avoid the block terminal to take place to empty and cause the full accident.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims

1. The utility model provides a building is fire prevention early warning device for block terminal which characterized in that includes: the box body (1), the lower end of the box body (1) is provided with an anchoring type supporting frame, the middle part of the bottom wall of the box body (1) is provided with a row of threading holes (8) which are arranged at equal intervals, and the upper end of the box body (1) is provided with an alarm device (27);

the solar water heater is characterized in that a partition board (9) is arranged on the upper portion of the middle of the inner side of the box body (1), a temperature sensor (10) is arranged in the middle of the lower side face of the partition board (9), a storage battery (11) is arranged at the upper right corner of the box body (1), an inactivation tank (12) is arranged on the upper side of the partition board (9) in the box body (1), one end of the inactivation tank (12) is communicated with a conveying pipe (14), an electromagnetic valve (15) is arranged in the middle of the conveying pipe (14), one end, far away from the inactivation tank (12), of the conveying pipe (14) penetrates through the partition board (9) and is connected with a tee joint (16) below the partition board (9), the conveying pipe (14) is respectively communicated with a first spraying pipe (17) and a second spraying pipe (18) through the tee joint (16), spraying heads (19) are arranged on the first spraying pipe (17) and the second spraying pipe (18), one end, far away from the tee joint (16), of the second spraying pipe (18), is connected with a passive power-off device (20) at the lower portion of the box body (1), the power supply box is characterized in that a circuit breaker (26) is installed near a passive power-off device (20) in the box body (1), a connecting wire (24) and an external live wire (25) are connected to the passive power-off device (20), and the passive power-off device (20) is connected with a live wire joint on the circuit breaker (26) through the connecting wire (24).

2. The fire-proof early warning device for the building distribution box according to claim 1, wherein the passive power-off device (20) comprises a connecting pipe (2001), a pneumatic pipe (2002) and a shell (2003), the middle of one end of the pneumatic pipe (2002) is communicated with one end of the connecting pipe (2001), the other end of the pneumatic pipe is fixedly connected with one end of the shell (2003), the outer side surface of the connecting pipe (2001) is provided with an external thread structure (2004), the inner side of the pneumatic pipe (2002) is slidably connected with a piston (2005), the middle of one side of the piston (2005) far away from the connecting pipe (2001) is fixedly connected with an insulating sliding rod (2006), one end of the insulating sliding rod (2006) far away from the piston (2005) penetrates through the middle of one end of the pneumatic pipe (2002) far away from the connecting pipe (2001) and extends into the shell (2003), one end of the insulating sliding rod (2006) in the shell (2003) is fixedly connected with a triangular conductive block (2007), and one end of the triangular conductive block (2007) far away from the insulating sliding rod (2006) is fixedly connected with an insulating push rod (2008), one end of the insulating push rod (2008) far away from the triangular conductive block (2007) penetrates through the middle of one end of the shell (2003) far away from the air pressure tube (2002), a pressing plate (2009) is fixedly connected outside the shell (2003), electric connector assemblies are symmetrically arranged in the middle of the upper side and the lower side of the shell (2003), and the two electric connector assemblies are electrically connected with the triangular conductive block (2007).

3. The fire-proof early warning device for the building distribution box according to claim 2, wherein the electrical connector assembly comprises an insulating sleeve (2010), a conductive pipe (2011) and a conductive sliding rod (2014), the insulating sleeve (2010) is sleeved on the outer side surface of the conductive pipe (2011), one end of the insulating sleeve (2010) is fixedly connected with the middle part of the outer side wall of the shell (2003), one end of the conductive pipe (2011) is communicated with the inner side of the shell (2003), one end, close to the shell (2003), of the inner side of the conductive pipe (2011) is slidably connected with one end of the outer side surface of the conductive sliding rod (2014), one end, far away from the conductive pipe (2011), of the conductive sliding rod (2014) extends into the shell (2003), one end, far away from the conductive sliding rod (2014) extends into the shell (2003), one end part, on the outer side surface, of the conductive sliding rod (2014) extends into the shell (2003), is fixedly connected with an insulating limit disc (2016), and a reset spring (2017) is sleeved on the outer side surface of the insulating limit disc (2016) and the inner side wall of the shell (2003), one end of the conductive sliding rod (2014) extending into the shell (2003) is fixedly connected with a conductive spring piece (2015), and one side face, far away from the conductive sliding rod (2014), of the conductive spring piece (2015) is in contact with the triangular conductive block (2007).

4. The fire prevention early warning device for building block terminal of claim 3, characterized in that, the side of electrically conductive spring leaf (2015) far away from electrically conductive slide bar (2014) sets up to the slope, and the corresponding slope that sets up of slope-like structure of the upper and lower both sides face and electrically conductive spring leaf (2015) of triangle-shaped conductive block (2007).

5. The fire-proof early warning device for the building distribution box according to claim 3, wherein one end and the middle of the pipe wall of the insulating sleeve (2010), which are far away from the outer shell (2003), are respectively engaged and connected with a fastening screw (2012) and a limiting screw (2013), and the tail ends of the fastening screw (2012) and the limiting screw (2013) penetrate through the pipe wall of the conductive pipe (2011) and extend into the conductive pipe (2011).

6. The fire prevention early warning device for the building distribution box according to claim 1, wherein the anchoring type support frame comprises two support legs (2) which are vertically arranged in parallel, the upper ends of the two support legs (2) are respectively and fixedly connected with the left side and the right side of the lower end of the box body (1), a reinforcing cross rod (3) is fixedly connected to the middle portion between the two support legs (2), the lower ends of the support legs (2) are fixedly connected with longitudinal horizontal frames (4), and anchoring holes (5) are formed in two ends of each horizontal frame (4).

7. The fire prevention early warning device for the building distribution box according to claim 1, wherein the second spraying pipe (18) is far away from the tee joint (16) and communicated with a connecting sleeve (21), an inner wall of the connecting sleeve (21) is provided with an internal thread structure (23) corresponding to the external thread structure (2004) on the connecting pipe (2001), and one end of the inner side of the connecting sleeve (21) close to the second spraying pipe (18) is provided with a sealing rubber ring (22).

8. The fire prevention early warning device for the building distribution box according to claim 1, wherein the storage battery (11) is electrically connected with the temperature sensor (10), the electromagnetic valve (15) and the alarm device (27) respectively, and the temperature sensor (10) is electrically connected with the electromagnetic valve (15) and the alarm device (27) respectively.

9. The fire-proof early warning device for the building distribution box according to claim 1, wherein strip-shaped windows (6) are formed in the middle of the left side wall and the right side wall of the box body (1), and downward-inclined strip-shaped eaves (7) are arranged on the upper portions of all window holes of the strip-shaped windows (6) on the outer side of the box body (1).

10. The fire-proof early warning device for the building distribution box according to claim 1, wherein a row of fixing sleeves (13) are sleeved on the outer side surface of the inactivation tank (12) and are arranged at equal intervals, and the lower ends of the fixing sleeves (13) are fixedly connected with the upper side surface of the partition plate (9).