Improved large electric shovel automatic fire extinguishing system

Abstract

The utility model belongs to the field of electric shovels, particularly relates to an improved automatic fire extinguishing system for a large electric shovel, and aims to solve the problems that the fire extinguishing effect is influenced as the conventional spray head for spraying fire extinguishing agent is generally fixedly mounted and the spraying angle is fixed, and the following scheme is provided: the improved automatic fire extinguishing system comprises an engine compartment mounted on the rear side of the electric shovel; two first mounting seats are fixedly arranged on the outer wall of the fire extinguishing agent storage tank, and the first mounting seats are fixedly arranged on the inner wall of one side of the engine compartment; according to the fire extinguishing device, when a fire source is detected, the spray head can rotate back and forth to spray the fire extinguishing agent, the coverage area of the fire extinguishing agent is increased, the fire extinguishing effect is improved, the fire extinguishing speed is increased, and the fire extinguishing effect is improved. And loss caused by fire disasters is reduced, people can conveniently fix and install the connecting pipeline, and convenience is provided for people.

Description

Technical Field

[0001] The utility model relates to the technical field of electric shovels, in particular to an improved automatic fire extinguishing system for large electric shovels. Background Art

[0002] Electric shovels have become one of the main mining equipment in open-pit mines due to their high productivity, high operating rate and low operating cost. Their widespread use can easily cause problems such as overheating in the engine compartment and aging of the lines, which can lead to fire problems. Therefore, a fire extinguishing system is installed in the engine compartment of the electric shovel. The existing automatic fire extinguishing system mainly includes fire source detectors, alarms, fire extinguishing agent storage tanks, connecting pipes and sprinklers, which can automatically detect and extinguish fires to avoid loss of life and property. However, the existing fire extinguishing system has the following shortcomings when used:

[0003] 1. The nozzles for spraying fire extinguishing agents are usually fixedly installed with a fixed spraying angle, which affects the fire extinguishing effect.

[0004] Therefore, we propose an improved automatic fire extinguishing system for large electric shovels. Utility Model Content

[0005] The utility model aims to solve the problem that the nozzles for spraying fire extinguishing agent are usually fixedly installed in the prior art, the spraying angle is fixed, and the fire extinguishing effect is affected, and an improved large electric shovel automatic fire extinguishing system is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An improved large electric shovel automatic fire extinguishing system, comprising:

[0008] The engine compartment is installed on the rear side of the shovel;

[0009] A fire extinguishing agent storage tank, wherein two first mounting seats are fixedly arranged on the outer wall of the fire extinguishing agent storage tank, and the first mounting seats are fixedly arranged on the inner wall of one side of the engine compartment;

[0010] A container valve, wherein a hose is fixedly connected between the container valve and the fire extinguishing agent storage tank, and both ends of the container valve are fixedly connected with connecting pipes;

[0011] The connecting pipe is composed of a plurality of fixed pipes and movable pipes, the fixed pipes and the movable pipes are rotatably connected, a nozzle is provided on the outer wall of the movable pipe, a second mounting seat is installed on the outer wall of the fixed pipe, and the second mounting seat is fixedly arranged on the top inner wall of the engine compartment;

[0012] A driving mechanism, the driving mechanism is arranged inside the engine compartment and is used to drive the movable tube to rotate;

[0013] The detection mechanism is arranged inside the engine compartment and is used to detect the fire source.

[0014] In a possible design, the driving mechanism includes a plurality of synchronous wheels, two fixed frames and a connecting shell, the plurality of synchronous wheels are respectively fixed on the outer walls of the plurality of movable tubes, a synchronous belt is transmission-connected between the two synchronous wheels on the same side, the two fixed frames are both fixed on the top inner wall of the engine compartment, a same slide plate is slidably connected between the two fixed frames, the two ends of the slide plate are respectively fixed to the two synchronous belts, the connecting shell is fixed on the top inner wall of the engine compartment, a motor is fixed on the bottom inner wall of the connecting shell, a turntable is fixed on one end of the motor output shaft, an eccentrically arranged connecting rod is rotatably connected on the surface of the turntable, and the other end of the connecting rod passes through the connecting shell and is rotatably connected to the slide plate.

[0015] In a possible design, the detection mechanism includes a controller, an alarm and a fire source detector. The controller and the alarm are both fixed on an inner wall of one side of the connecting shell, and the fire source detector is fixed on an outer wall of one of the fixed tubes.

[0016] In a possible design, the second mounting seat includes a first connecting block and a second connecting block, the first connecting block and the second connecting block are slidably connected, and the first connecting block is fixed to the top inner wall of the engine compartment by bolts.

[0017] In a possible design, positioning grooves are provided on both inner walls of the first connecting block, and positioning strips are integrally formed on both sides of the second connecting block, and the positioning strips and the positioning grooves cooperate with each other.

[0018] In a possible design, anti-slip pads are bonded to inner walls of the first connecting block and the second connecting block.

[0019] In the present application, when in use, the fire source detector detects the fire source and transmits a signal to the controller. The controller opens the container valve and the motor according to the signal. The motor drives the turntable to rotate, and then drives the slide plate to move back and forth, and then drives the movable tube to rotate repeatedly, so that the sprinkler head swings repeatedly, and the fire extinguishing agent is sprayed out from the sprinkler head through the hose and the connecting pipe, and the fire is automatically extinguished. At the same time, the controller activates the alarm to sound to alert the people around.

[0020] Beneficial effects:

[0021] In the utility model, the improved large electric shovel automatic fire extinguishing system, through the arrangement of multiple structures such as a movable tube, a nozzle, a synchronous belt and a synchronous wheel, can start the motor to drive the movable tube to rotate back and forth after detecting the fire source, so that the nozzle sprays the fire extinguishing agent back and forth, thereby increasing the coverage area and fire extinguishing effect of the fire extinguishing agent, achieving the fire extinguishing effect more quickly, and reducing the losses caused by the fire;

[0022] In the utility model, the improved large-scale electric shovel automatic fire extinguishing system can facilitate people to fix and install the connecting pipe through the arrangement of the second mounting seat, thus providing convenience for installing the fire extinguishing system;

[0023] In the utility model, when a fire source is detected, the nozzle can be rotated back and forth to spray the fire extinguishing agent, thereby increasing the coverage area and fire extinguishing effect of the fire extinguishing agent, improving the fire extinguishing rate, reducing the losses caused by the fire, and also facilitating people to fix and install the connecting pipes, providing convenience for people. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an electric shovel and an engine compartment of an improved large electric shovel automatic fire extinguishing system proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the internal installation structure of the engine compartment of an improved large electric shovel automatic fire extinguishing system proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the exploded structure of the connecting pipes of an improved large-scale electric shovel automatic fire extinguishing system proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the inner structure of a connection shell of an improved large electric shovel automatic fire extinguishing system proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the exploded structure of the second mounting base of an improved large electric shovel automatic fire extinguishing system proposed by the utility model.

[0029] In the figure: 1. engine compartment; 2. fire extinguishing agent storage tank; 3. first mounting seat; 4. container valve; 5. hose; 6. connecting pipe; 7. fixed frame; 8. slide plate; 9. timing belt; 10. second mounting seat; 11. movable pipe; 12. synchronous wheel; 13. nozzle; 14. fixed pipe; 15. fire source detector; 16. connecting shell; 17. motor; 18. turntable; 19. alarm; 20. connecting rod; 21. controller; 22. first connecting block; 23. second connecting block; 24. positioning strip; 25. positioning groove; 26. anti-slip pad. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] Reference Figure 1-Figure 5, an improved automatic fire extinguishing system, comprising:

[0033] An engine compartment 1 installed at the rear side of the electric shovel;

[0034] A fire extinguishing agent storage tank 2, the outer wall of which is fixedly provided with two first mounting seats 3, and the first mounting seats 3 are both fixedly provided on an inner wall of one side of the engine compartment 1;

[0035] A container valve 4, a hose 5 is fixedly connected between the container valve 4 and the fire extinguishing agent storage tank 2, and both ends of the container valve 4 are fixedly connected with connecting pipes 6 for conveying the fire extinguishing agent;

[0036] The connecting pipe 6 is composed of a plurality of fixed pipes 14 and movable pipes 11, which are rotatably connected to achieve multi-angle fire extinguishing coverage. A nozzle 13 is provided on the outer wall of the movable pipe 11, and a second mounting seat 10 is installed on the outer wall of the fixed pipe 14. The second mounting seat 10 is fixedly arranged on the top inner wall of the engine compartment 1;

[0037] The driving mechanism is arranged inside the engine compartment 1 and is used to drive the movable tube 11 to rotate. The driving mechanism includes a plurality of synchronous wheels 12, two fixed frames 7 and a connecting shell 16. The plurality of synchronous wheels 12 are respectively fixed on the outer walls of the plurality of movable tubes 11. A synchronous belt 9 is connected to the two synchronous wheels 12 on the same side. The two fixed frames 7 are fixed on the top inner wall of the engine compartment 1. A same slide plate 8 is slidably connected between the two fixed frames 7. The two ends of the slide plate 8 are respectively fixed to the two synchronous belts 9. The connecting shell 16 is fixed on the engine compartment 1. A motor 17 is fixedly provided on the top inner wall of the engine cabin 1 and the bottom inner wall of the connecting shell 16. A turntable 18 is fixedly provided at one end of the output shaft of the motor 17. An eccentrically arranged connecting rod 20 is rotatably connected to the surface of the turntable 18. The other end of the connecting rod 20 passes through the connecting shell 16 and is rotatably connected to the slide plate 8. When the motor 17 is started, the turntable 18 drives the connecting rod 20 to move, thereby driving the slide plate 8 to slide between the fixed frames 7, and drives the synchronous wheel 12 to rotate through the synchronous belt 9, and finally rotates the movable tube 11 to achieve multi-angle coverage of the nozzle 13.

[0038] The detection mechanism is arranged on the inner side of the engine compartment 1 and is used to detect the fire source. The detection mechanism includes a controller 21, an alarm 19 and a fire source detector 15. The controller 21 and the alarm 19 are both fixed on the inner wall of one side of the connecting shell 16. The fire source detector 15 is fixed on the outer wall of one of the fixed tubes 14. When the fire source detector 15 detects the fire source, it will send a signal to the controller 21. The controller 21 controls the motor 17 to start and triggers the alarm 19 to sound an alarm.

[0039] The present application can be used in the electric shovel field, and can also be used in other fields applicable to the present application.

[0040] Example 2

[0041] An improved large electric shovel automatic fire extinguishing system based on Example 1 is applied to the electric shovel field;

[0042] In another aspect of this embodiment, the second mounting seat 10 includes a first connecting block 22 and a second connecting block 23, which are slidably connected. The first connecting block 22 is fixed to the top inner wall of the engine compartment 1 by bolts, which can facilitate the installation of the connecting pipe 6.

[0043] In another aspect of this embodiment, positioning grooves 25 are provided on the inner walls on both sides of the first connecting block 22, and positioning strips 24 are integrally formed on both sides of the second connecting block 23. The positioning strips 24 and the positioning grooves 25 cooperate to ensure stable sliding of the second connecting block 23 and improve the stability of the structure.

[0044] In another aspect of this embodiment, anti-slip pads 26 are bonded to the inner walls of the first connecting block 22 and the second connecting block 23, which can clamp and limit the fixing pipe 14 and increase the stability of the connection.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the fire detector 15, motor 17 and alarm 19 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An improved large electric shovel automatic fire extinguishing system, characterized in that: include: An engine compartment (1) mounted on the rear side of the electric shovel; A fire extinguishing agent storage tank (2), wherein two first mounting seats (3) are fixedly arranged on the outer wall of the fire extinguishing agent storage tank (2), and the first mounting seats (3) are both fixedly arranged on the inner wall of one side of the engine compartment (1); A container valve (4), wherein a hose (5) is fixedly connected between the container valve (4) and the fire extinguishing agent storage tank (2), and both ends of the container valve (4) are fixedly connected with connecting pipes (6); The connecting pipe (6) is composed of a plurality of fixed pipes (14) and movable pipes (11), the fixed pipes (14) and the movable pipes (11) are rotatably connected, a nozzle (13) is provided on the outer wall of the movable pipe (11), a second mounting seat (10) is installed on the outer wall of the fixed pipe (14), and the second mounting seat (10) is fixedly arranged on the top inner wall of the engine compartment (1); A driving mechanism, the driving mechanism being arranged inside the engine compartment (1) and being used for driving the movable tube (11) to rotate; A detection mechanism is arranged inside the engine compartment (1) and is used to detect a fire source.

2. The improved large electric shovel automatic fire extinguishing system according to claim 1 is characterized in that: The driving mechanism comprises a plurality of synchronous wheels (12), two fixed frames (7) and a connecting shell (16); the plurality of synchronous wheels (12) are respectively fixed on the outer walls of the plurality of movable tubes (11); a synchronous belt (9) is drivingly connected between the two synchronous wheels (12) on the same side; the two fixed frames (7) are both fixed on the top inner wall of the engine compartment (1); a same slide plate (8) is slidably connected between the two fixed frames (7); two ends of the slide plate (8) are respectively fixed to the two synchronous belts (9); the connecting shell (16) is fixed on the top inner wall of the engine compartment (1); a motor (17) is fixed on the bottom inner wall of the connecting shell (16); a rotating disk (18) is fixed on one end of the output shaft of the motor (17); an eccentrically arranged connecting rod (20) is rotatably connected to the surface of the rotating disk (18); the other end of the connecting rod (20) passes through the connecting shell (16) and is rotatably connected to the slide plate (8).

3. The improved large electric shovel automatic fire extinguishing system according to claim 2 is characterized in that: The detection mechanism comprises a controller (21), an alarm (19) and a fire source detector (15); the controller (21) and the alarm (19) are both fixedly mounted on an inner wall of one side of the connecting shell (16); and the fire source detector (15) is fixedly mounted on an outer wall of one of the fixed tubes (14).

4. An improved large electric shovel automatic fire extinguishing system according to any one of claims 1 to 3, characterized in that: The second mounting seat (10) comprises a first connecting block (22) and a second connecting block (23), the first connecting block (22) and the second connecting block (23) are slidably connected, and the first connecting block (22) is fixed to the top inner wall of the engine compartment (1) by bolts.

5. The improved large electric shovel automatic fire extinguishing system according to claim 4 is characterized in that: The inner walls on both sides of the first connection block (22) are provided with positioning grooves (25), and the two sides of the second connection block (23) are integrally formed with positioning strips (24), and the positioning strips (24) and the positioning grooves (25) are matched.

6. The improved large electric shovel automatic fire extinguishing system according to claim 4 is characterized in that: Anti-slip pads (26) are bonded to the inner walls of the first connecting block (22) and the second connecting block (23).

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