CN218685868U

CN218685868U - Fire extinguisher with explosion-proof structure

Info

Publication number: CN218685868U
Application number: CN202222862954.6U
Authority: CN
Inventors: 邢涛
Original assignee: Nanjing Zhen'an Emergency Technology Co ltd
Current assignee: Nanjing Zhen'an Emergency Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-24
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to the technical field of fire extinguishers, in particular to a fire extinguisher with an explosion-proof structure, which comprises a shell, wherein two rotating supporting plates with symmetrical positions are fixedly arranged at the upper end of the shell, an indicator is fixedly arranged at the front end of the rotating supporting plate in front of the shell, a transition cavity is arranged in the shell, and a connecting block is arranged on the top wall of the transition cavity in a penetrating way; the utility model discloses a let in the fire extinguishing substance of higher pressure in the inner shell, let in the relatively lower fire extinguishing substance of pressure in the transition intracavity, at the inner shell, form ladder pressure difference between transition chamber and the external environment, and through second stabilizing spring and first stabilizing spring fixed connection between inner shell and the transition chamber, the fire extinguisher receives when high temperature toasts, when inside pressure is too big, the atress board receives annular pressure inductor pressure fracture, fire extinguishing substance passes through the release of fire extinguishing pipe by the connecting block inner wall in the inner shell, not only reduce the explosion rate and still increase the capacity of fire extinguisher to fire extinguishing substance.

Description

Fire extinguisher with explosion-proof structure

Technical Field

The utility model relates to a fire extinguisher technical field specifically is a fire extinguisher with explosion-proof construction.

Background

In daily life, most places have hidden dangers of fire disasters, so a fire extinguisher is required to be prepared for precaution, when the fire is small, the fire extinguisher can be used for extinguishing the fire extinguishers, property loss is reduced, the conventional fire extinguisher generally puts compressed fire extinguishing substances into the fire extinguisher, but the fire scene has high temperature, the internal air pressure of the fire extinguisher can be improved, so that the fire extinguisher has the danger of explosion, the fire extinguisher is collided when being carried, high pressure in a bottle is released instantly during meeting, explosion is formed, property loss and casualties are very easily caused, and the fire extinguisher with an explosion-proof structure is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire extinguisher with explosion-proof structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a fire extinguisher with an explosion-proof structure comprises an outer shell, wherein two rotation supporting plates with symmetrical positions are fixedly arranged at the upper end of the outer shell, an indicator is fixedly arranged at the front end of the rotation supporting plate in front of the outer shell, a transition cavity is arranged in the outer shell, a connecting block penetrates through the top wall of the transition cavity, an inner shell is fixedly arranged on the connecting block in the transition cavity, the inner wall of the connecting block is communicated with the inner wall of the inner shell, a spring connecting block is fixedly arranged on the outer surface of the inner shell, four first stabilizing springs are arranged on the outer surface of the spring connecting block in a surrounding manner, the first stabilizing springs are fixedly connected with the inner wall of the transition cavity, and the inner shell is fixedly connected with the bottom wall of the transition cavity through second stabilizing springs;

the inner wall of the inner shell is provided with a detection device for detecting the pressure difference between the inner wall of the inner shell and the transition cavity, and the connecting block is internally provided with a pressure relief device for discharging the pressure in the inner shell.

Preferably, the detection device comprises a connecting through hole formed in the inner wall of the inner shell in a penetrating mode, a stop block is fixedly arranged on the inner wall of the connecting through hole, and a sliding block is connected to the inner wall of the connecting through hole above the stop block in a sliding mode.

Preferably, the sliding block lower extreme sets firmly two pressure sensors of position symmetry, pressure sensor control the indicator flashing light, the pressure sensor lower extreme sets firmly the atress piece, set firmly on the atress piece with sliding block hole sliding connection's atress sleeve, the sliding block top connect the through-hole inner wall set firmly fixed jam piece.

Preferably, the pressure relief device comprises a spring fixing ring block fixedly arranged on the inner wall of the connecting block, a sealing spring is fixedly arranged at the upper end of the spring fixing ring block, a spring connecting rod is fixedly arranged at the upper end of the sealing spring, and a sealing and plugging block is fixedly arranged at the upper end of the spring connecting rod.

Preferably, sealed jam piece top the connecting block inner wall has set firmly the atress board, the atress board lower extreme has set firmly the annular pressure sensor, the control of annular pressure sensor the indicator flashing light, the annular pressure sensor lower extreme has set firmly the sealing ring, the sealing ring hole with sealed jam piece sliding connection.

Preferably, the upper end of the sealing and blocking block is fixedly provided with a moving rod extending to the upper part of the connecting block, the inner wall of the connecting block is provided with a fire extinguishing pipe in a penetrating manner, two rotating support plates are rotatably connected with a switch rotating rod abutted against the moving rod, and the upper end of the shell is fixedly provided with a handle.

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

the fire extinguishing substance with higher pressure is introduced into the inner shell, the fire extinguishing substance with relatively lower pressure is introduced into the transition cavity, a step pressure difference is formed between the inner shell, the transition cavity and the external environment, even if the outer shell or the inner shell is broken, explosion can not occur, air leakage can only be formed, the inner shell and the transition cavity are fixedly connected through the second stabilizing spring and the first stabilizing spring, collision of the inner shell can be reduced when the inner shell is impacted, explosion of the inner shell is avoided, when the fire extinguisher is baked at high temperature, the pressure in the inner shell is increased, so that the pressure exerted by the sealing and plugging block on the sealing ring and the annular pressure sensor is increased, when the pressure is too high, the stress plate is broken under the pressure of the annular pressure sensor, the fire extinguishing substance in the inner shell is released through the fire extinguishing pipe from the inner wall of the connecting block, when the pressure in the inner shell is lower than the pressure in the transition cavity, the pressure difference pushes the sliding block to move downwards, the pressure in the inner shell enters the inner shell through the inner hole and the transition block, and then is released, the possibility of explosion formation is effectively reduced, and the capacity of the fire extinguisher on the fire extinguishing substance is increased.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 2B according to the present invention;

in the figure:

11. rotating the support plate; 12. a switch rotating rod; 13. a handle; 14. fire extinguishing pipes; 15. a housing; 16. a travel bar; 17. an annular pressure sensor; 18. a seal ring; 19. a through hole; 20. sealing the plugging block; 21. a spring connecting rod; 22. a seal spring; 23. a spring fixing ring block; 24. connecting blocks; 25. an inner shell; 26. a first stabilizing spring; 27. a spring connecting block; 28. a second stabilizing spring; 29. a transition chamber; 30. fixing the plugging block; 31. a slider; 32. a stressed sleeve; 33. a stopper; 34. a stress block; 35. a pressure sensor; 36. a connecting through hole; 37. a stress plate; 38. an indicator; 39. a detection device; 40. a pressure relief device.

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.

Example 1

Referring to fig. 1-4, for the first embodiment of the present invention, this embodiment provides a fire extinguisher with an explosion-proof structure, including an outer shell 15, two rotation support plates 11 with symmetrical positions are fixed at the upper end of the outer shell 15, an indicator 38 is fixed at the front end of the rotation support plate 11, a transition chamber 29 is arranged in the outer shell 15, a connection block 24 is arranged on the top wall of the transition chamber 29 in a penetrating manner, an inner shell 25 is fixed on the connection block 24 in the transition chamber 29, the inner wall of the connection block 24 is communicated with the inner wall of the inner shell 25, a spring connection block 27 is fixed on the outer surface of the inner shell 25, four first stabilizing springs 26 are arranged around the outer surface of the spring connection block 27, the first stabilizing springs 26 are fixedly connected with the inner wall of the transition chamber 29, and the inner shell 25 is fixedly connected with the bottom wall of the transition chamber 29 through second stabilizing springs 28;

the inner wall of the inner shell 25 is provided with a detection device 39 for detecting the pressure difference between the inner wall of the inner shell 25 and the transition cavity 29, the detection device 39 comprises a connecting through hole 36 formed in the inner wall of the inner shell 25 in a penetrating manner, a stop block 33 is fixedly arranged on the inner wall of the connecting through hole 36, a sliding block 31 is slidably connected to the inner wall of the connecting through hole 36 above the stop block 33, two pressure sensors 35 with symmetrical positions are fixedly arranged at the lower end of the sliding block 31, the pressure sensors 35 control a flashing light of an indicator 38, a stress block 34 is fixedly arranged at the lower end of the pressure sensor 35, a stress sleeve 32 slidably connected with an inner hole of the sliding block 31 is fixedly arranged on the stress block 34, and a fixed blocking block 30 is fixedly arranged on the inner wall of the connecting through hole 36 above the sliding block 31.

When the pressure sensor is impacted, the impact of the outer shell 15 on the inner shell 25 is buffered through the first stabilizing spring 26 and the second stabilizing spring 28, the damage to the inner shell 25 is reduced, when the outer shell 15 and the inner shell 25 are not damaged, the sliding block 31 is pushed upwards by pressure in the transition cavity 29, the inner hole on the sliding block 31 is blocked by the fixed blocking block 30, the communication between the inner wall of the inner shell 25 and the transition cavity 29 is prevented, the pressure of the fixed blocking block 30 is received by the stress sleeve 32, meanwhile, the pressure is transmitted to the pressure sensor 35 through the stress block 34 by the stress sleeve 32, when the pressure of the inner wall of the inner shell 25 and the pressure of the transition cavity 29 changes due to the damage of the outer shell 15 and the inner shell 25 in normal use, the sliding block 31 moves downwards, the pressure sensor 35 does not receive pressure, and meanwhile, a signal is transmitted to the pre-warning indicator 38.

Example 2

Referring to fig. 1-4, in order to provide a second embodiment of the present invention, which is based on the previous embodiment, a pressure relief device 40 is disposed in the connecting block 24 for venting the pressure in the inner shell 25;

pressure relief device 40 is including setting firmly in the spring retainer ring piece 23 of 24 inner walls of connecting block, spring retainer ring piece 23 upper end has set firmly sealing spring 22, sealing spring 22 upper end has set firmly spring link rod 21, spring link rod 21 upper end has set firmly sealed jam piece 20, sealed jam piece 20 top 24 inner walls of connecting block have set firmly atress board 37, atress board 37 lower extreme has set firmly annular pressure sensor 17, annular pressure sensor 17 control 38 flashing light of indicator, annular pressure sensor 17 lower extreme has set firmly sealing

ring

18, 18 hole of sealing ring with sealed jam piece 20 sliding connection, sealed jam piece 20 upper end has set firmly extend to the carriage release 16 of connecting block 24 top, 24 inner walls of connecting block run through and are equipped with fire extinguishing pipe 14, two rotate between the backup pad 11 between be connected with the switch bull stick 12 of carriage release 16 butt, the shell 15 upper end has set firmly handle 13.

When fire extinguishing is required, the switch rotating rod 12 is pressed, the switch rotating rod 12 drives the moving rod 16 to move downwards, the moving rod 16 pushes the sealing and blocking block 20 to move, the sealing and blocking block 20 compresses the sealing spring 22 through the spring connecting rod 21, fire extinguishing substances in the inner shell 25 are driven by pressure to enter the fire extinguishing pipe 14 through the through hole 19 and then are sprayed out from the fire extinguishing pipe 14 for fire extinguishing, when the fire extinguisher is baked at high temperature to cause the internal air pressure to rise, the pressure of the air pressure in the inner shell 25 on the sealing and blocking block 20 and the sealing ring 18 is increased, the sealing ring 18 applies pressure on the annular pressure sensor 17, the annular pressure sensor 17 applies pressure on the stress plate 37, the annular pressure sensor 17 transmits a signal to the indicator 38, when the pressure is too high, the stress plate 37 is broken, the annular pressure sensor 17 and the sealing ring 18 move upwards, the inner wall of the inner shell 25 is directly communicated with the inner wall of the fire extinguishing pipe 14 for pressure reduction, and after the pressure in the inner shell 25 is released, the pressure in the transition cavity 29 is transmitted to the inner shell through the connecting through hole 36 to continue to release the pressure.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fire extinguisher with an explosion-proof structure, comprising a housing (15), characterized in that: the upper end of the outer shell (15) is fixedly provided with two rotating supporting plates (11) which are symmetrical in position, the front end of each rotating supporting plate (11) is fixedly provided with an indicator (38), a transition cavity (29) is arranged in the outer shell (15), the top wall of each transition cavity (29) is provided with a connecting block (24) in a penetrating manner, the connecting block (24) in each transition cavity (29) is fixedly provided with an inner shell (25), the inner wall of each connecting block (24) is communicated with the inner wall of the corresponding inner shell (25), the outer surface of each inner shell (25) is fixedly provided with a spring connecting block (27), the outer surface of each spring connecting block (27) is provided with four first stabilizing springs (26) in a surrounding manner, each first stabilizing spring (26) is fixedly connected with the inner wall of the corresponding transition cavity (29), and the inner shells (25) are fixedly connected with the bottom walls of the corresponding transition cavities (29) through second stabilizing springs (28);

the inner wall of the inner shell (25) is provided with a detection device (39) for detecting the pressure difference between the inner wall of the inner shell (25) and the transition cavity (29), and a pressure relief device (40) for discharging the pressure in the inner shell (25) is arranged in the connecting block (24).

2. A fire extinguisher having an explosion proof structure according to claim 1, wherein: detection device (39) include connecting hole (36) that inner shell (25) inner wall run through to be equipped with, connecting hole (36) inner wall has set firmly dog (33), dog (33) top connecting hole (36) inner wall sliding connection has sliding block (31).

3. A fire extinguisher having an explosion proof structure according to claim 2, wherein: sliding block (31) lower extreme sets firmly two pressure sensors (35) of position symmetry, pressure sensor (35) control indicator (38) flashing light, pressure sensor (35) lower extreme has set firmly atress piece (34), on atress piece (34) set firmly with sliding block (31) hole sliding connection's atress sleeve (32), sliding block (31) top connect through-hole (36) inner wall has set firmly fixed jam piece (30).

4. A fire extinguisher having an explosion proof structure according to claim 1, wherein: pressure relief device (40) including set firmly in spring retaining ring piece (23) of connecting block (24) inner wall, spring retaining ring piece (23) upper end has set firmly sealing spring (22), sealing spring (22) upper end has set firmly spring link pole (21), spring link pole (21) upper end has set firmly sealed jam block (20).

5. A fire extinguisher having an explosion proof structure according to claim 4, wherein: sealed jam block (20) top connecting block (24) inner wall has set firmly atress board (37), atress board (37) lower extreme has set firmly annular pressure inductor (17), annular pressure inductor (17) control indicator (38) flashing light, annular pressure inductor (17) lower extreme has set firmly sealing ring (18), sealing ring (18) hole with sealed jam block (20) sliding connection.

6. A fire extinguisher having an explosion proof structure according to claim 5, wherein: sealed jam block (20) upper end sets firmly extends to travel bar (16) above connecting block (24), connecting block (24) inner wall runs through and is equipped with fire extinguishing pipe (14), two rotate between backup pad (11) be connected with switch bull stick (12) of travel bar (16) butt, shell (15) upper end sets firmly handle (13).