CN114222461A

CN114222461A - Electrical control box for engineering machinery

Info

Publication number: CN114222461A
Application number: CN202210154113.1A
Authority: CN
Inventors: 夏步林
Original assignee: Xuzhou Pat Control Technology Co ltd
Current assignee: Xuzhou Pat Control Technology Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-03-22
Anticipated expiration: 2042-02-21
Also published as: CN114222461B

Abstract

The invention belongs to the technical field of control boxes, in particular to an electrical control box for engineering machinery, which aims at solving the problem that a large number of electrical elements exist in the existing electrical control box, the electrical control box can automatically cut off and alarm when short-circuit spontaneous combustion occurs in an electrical appliance, but can not timely extinguish spontaneous combustion flames and is easy to cause greater risks. The fire extinguisher is simple in structure, can spray foam to extinguish fire when an electric appliance is spontaneously combusted, and can isolate oxygen to avoid causing greater risks.

Description

Electrical control box for engineering machinery

Technical Field

The invention relates to the technical field of control boxes, in particular to an electrical control box for engineering machinery.

Background

The electric control box is an important component of a host system of the engineering machinery, the assembling space of the electric control boxes of a plurality of machine types is narrow and small, the assembling efficiency is low, in addition, the engineering machinery vehicle is usually constructed in the field, the electric control box is generally assembled outside the vehicle body, and water vapor, dust and the like easily enter the inside of the electric control box. In the prior art, a plurality of electrical control elements need to be assembled in the box body, and the devices are difficult to assemble due to unreasonable layout; furthermore, due to the stacked mounting of devices, significant challenges are presented to the inspection and maintenance of equipment by the service personnel, for example, the public (bulletin) numbers: the patent document of CN206908983U provides an electrical control box for engineering machinery, which comprises a box body and a box cover, wherein the box cover is arched, one side of the box cover is connected to an opening of the box body through a built-in hinge I, the other side of the box cover, which corresponds to the built-in hinge I, is provided with a hasp seat, the position, which corresponds to the hasp, of the box body is provided with a hasp seat, the buckling position of the box body and the box cover is circumferentially provided with a sealing strip, the electrical control box also comprises an upper mounting plate, a bottom mounting plate and a connecting plate, one side of the upper mounting plate is connected to the edge of the box body through a built-in hinge II, the connecting plate is fixed at the edge of the box body, which corresponds to the built-in hinge II in parallel, the other side of the upper mounting plate is fixed on the connecting plate, and the bottom mounting plate is fixed at the bottom of the box body; the box body and the box cover are made of stainless steel, the hasp and the hasp seat are made of zinc alloy, the built-in hinge I is a stainless steel hinge, and the built-in hinge II is a zinc alloy hinge. The invention has high space utilization rate, is anticorrosive, waterproof and dustproof and can well meet the performance requirements of engineering machinery.

A large number of electrical elements exist in the existing electrical control box, and when short-circuit spontaneous combustion occurs in an electrical appliance, although the electrical appliance can be automatically powered off and alarm, spontaneous combustion flames cannot be timely put out, and greater risks are easily caused.

Disclosure of Invention

The invention aims to solve the defects that a large number of electrical elements exist in the existing electrical control box, the electrical control box can automatically cut off power and alarm when short-circuit spontaneous combustion occurs in an electrical appliance, but cannot timely extinguish spontaneous combustion flames, and is easy to cause greater risk.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electrical control box for engineering machinery comprises a box body, wherein four supporting legs are arranged at the bottom of the box body, an electrical element is arranged in the box body, two box covers are rotatably arranged on the front surface of the box body, a smoke sensor is arranged on the rear side of the inner wall of the box body, a plurality of heat dissipation holes are formed in the two sides of the box body, a supporting plate is fixedly arranged in the box body, a foam nozzle is rotatably arranged at the bottom of the supporting plate, a foam cylinder is arranged on the inner wall of the top of the box body, a separation net is arranged in the foam cylinder, a servo motor is arranged on the inner wall of the right side of the box body, a rotating rod is connected onto an output shaft of the servo motor, an air cylinder is arranged on the right side of the foam cylinder, the rotating rod is rotatably connected with the air cylinder, spiral blades are arranged on the outer side of the rotating rod and are positioned in the air cylinder, a cylinder is embedded in the supporting plate, a vertical rod is rotatably arranged in the cylinder, a fan is arranged on the outer side of the vertical rod, and is positioned in the cylinder, the top and the rotary rod of montant rotate to be connected, the bottom of montant is connected with reciprocating mechanism, reciprocating mechanism links to each other with the foam shower nozzle, equal slidable mounting has the baffle on the both sides inner wall of box, a plurality of intercommunicating pores have all been seted up on two baffles, the intercommunicating pore is repeated with the louvre that corresponds, all be provided with pneumatic power unit on the both sides inner wall of box, the even drum of two pneumatic power unit is linked together, the baffle links to each other with the pneumatic power unit that corresponds.

Preferably, reciprocating mechanism includes cam, swinging arms and push rod, and the cam links to each other with the bottom of montant, and the swinging arms rotates with the eccentric position of cam to be connected, and the other end of swinging arms links to each other with the foam shower nozzle, and the rectangle frame is installed in the outside of foam shower nozzle, rotates on the push rod and installs the axostylus axostyle, axostylus axostyle and rectangle frame swing joint, and the supporting shoe is installed to the bottom of backup pad, and push rod slidable mounting is on the supporting shoe.

Preferably, the pneumatic power mechanism comprises a pneumatic cylinder, a pneumatic plate, a pressure rod and a return spring, the pneumatic cylinder is installed on the inner wall of the box body, the pneumatic plate is in sliding connection with the inner wall of the pneumatic cylinder, the pressure rod is connected with the bottom of the pneumatic plate, the return spring is sleeved on the outer side of the pressure rod, the top end of the return spring is connected with the pneumatic plate, the bottom end of the return spring is connected with the inner wall of the bottom of the pneumatic cylinder, and the pressure rod is connected with the top of the baffle.

Preferably, the outer side of the pneumatic cylinder is provided with an exhaust hole, the top of the pneumatic cylinder is communicated with an air pipe, and the air pipe is communicated with the cylinder.

Preferably, the outer side of the rotating rod is sleeved with a second bevel gear, the top end of the vertical rod is sleeved with a first bevel gear, and the first bevel gear is meshed with the second bevel gear.

Preferably, the left side of the foam cylinder is in threaded connection with an internal thread cover, and a handle is arranged on the outer side of the internal thread cover.

Preferably, the bottom of the foam cylinder is communicated with a metal pipe, the bottom end of the metal pipe is communicated with a hose, the hose is communicated with the foam nozzle, the bottom of the support plate is rotatably provided with a support frame, and the foam nozzle is rotatably connected with the support frame.

Compared with the prior art, the invention has the advantages that:

according to the scheme, the servo motor drives the rotating rod to rotate, the rotating rod drives the spiral blade to rotate in the air cylinder to blow air into the foam cylinder, air pressure in the foam cylinder is increased to guide foam in the foam cylinder into the metal pipe, then the foam enters the foam nozzle through the hose, and foam is sprayed into the box body through the foam nozzle, so that a fire extinguishing effect can be achieved;

according to the scheme, the rotating rod drives the vertical rod to rotate, the vertical rod drives the fan to rotate, the two air pipes, the two air pressure cylinders and the air pressure plate drive the pressure rod to move downwards, the pressure rod drives the baffle to move downwards, the communicating holes and the heat dissipation holes are staggered, oxygen can be sealed and isolated in the box body, and the fire extinguishing effect is improved;

according to the scheme, the cam is driven to rotate through the vertical rod, the cam drives the swing rod to swing in a reciprocating mode, the swing rod drives the push rod to move horizontally in a reciprocating mode, the push rod drives the foam spray head to swing in a reciprocating mode under the action of the supporting frame through the shaft rod and the rectangular frame, the foam spray head can uniformly spray foam in the box body, and the fire extinguishing uniformity can be achieved;

when the scheme is used for fire extinguishing or normal use, the servo motor stops working, the pressure rod pulls the baffle to move upwards under the elastic force action of the return spring, so that the communication holes and the heat dissipation holes are overlapped, and the interior of the box body can be cooled;

the fire extinguisher is simple in structure, can spray foam to extinguish fire when an electric appliance is spontaneously combusted, and can isolate oxygen to avoid causing greater risks.

Drawings

Fig. 1 is a schematic structural diagram of an electrical control box for a construction machine according to the present invention;

fig. 2 is a schematic cross-sectional structural view of an electrical control box for a construction machine according to the present invention;

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

FIG. 4 is a schematic structural diagram of a portion B of FIG. 2 according to the present invention;

FIG. 5 is a schematic view of a portion C of FIG. 2 according to the present invention;

fig. 6 is a schematic structural diagram of a cam, a swing lever and a push rod according to the present invention.

In the figure: 1. a box body; 2. a box cover; 3. heat dissipation holes; 4. a support plate; 5. a servo motor; 6. a foam cylinder; 7. an internally threaded cap; 8. separating the net; 9. a foam nozzle; 10. a hose; 11. a support frame; 12. a rectangular frame; 13. a shaft lever; 14. a push rod; 15. an air tube; 16. rotating the rod; 17. helical leaves; 18. an air cylinder; 19. a cylinder; 20. a vertical rod; 21. a fan; 22. a first bevel gear; 23. a second bevel gear; 24. a cam; 25. a swing lever; 26. an air pressure cylinder; 27. a gas pressure plate; 28. a pressure lever; 29. a return spring; 30. a baffle plate; 31. a communicating hole; 32. an exhaust hole; 33. fixing the rod; 34. a plugging head; 35. a pressure spring; 36. a guide bar; 37. a handle; 38. a metal tube; 39. an electrical component; 40. a support leg; 41. and (4) air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-6, an electrical control box for engineering machinery comprises a box body 1, four support legs 40 are arranged at the bottom of the box body 1, an electrical element 39 is arranged in the box body 1, two box covers 2 are rotatably arranged at the front of the box body 1, a smoke sensor is arranged at the rear side of the inner wall of the box body 1, a plurality of heat dissipation holes 3 are formed at the two sides of the box body 1, a support plate 4 is fixedly arranged in the box body 1, a foam nozzle 9 is rotatably arranged at the bottom of the support plate 4, a foam cylinder 6 is arranged on the inner wall of the top of the box body 1, a partition net 8 is arranged in the foam cylinder 6, a servo motor 5 is arranged on the inner wall of the right side of the box body 1, a rotating rod 16 is connected to an output shaft of the servo motor 5, an air cylinder 18 is arranged at the right side of the foam cylinder 6, the rotating rod 16 is rotatably connected with the air cylinder 18, a spiral blade 17 is arranged at the outer side of the rotating rod 16, and the spiral blade 17 is positioned in the air cylinder 18, it has drum 19 to embed on backup pad 4, montant 20 is installed to 19 internal rotations of drum, fan 21 is installed in the outside of montant 20, fan 21 is located drum 19, montant 20's top is rotated with rotary rod 16 and is connected, montant 20's bottom is connected with reciprocating mechanism, reciprocating mechanism links to each other with foam nozzle 9, equal slidable mounting has baffle 30 on box 1's the both sides inner wall, a plurality of intercommunicating pores 31 have all been seted up on two baffles 30, intercommunicating pore 31 is repeated with the 3 louvres that correspond, all be provided with pneumatic power unit on box 1's the both sides inner wall, two even drums 19 of pneumatic power unit are linked together, baffle 30 links to each other with the pneumatic power unit that corresponds.

In this embodiment, the reciprocating mechanism includes a cam 24, a swing rod 25 and a push rod 14, the cam 24 is connected to the bottom end of the vertical rod 20, the swing rod 25 is rotatably connected to the eccentric position of the cam 24, the other end of the swing rod 25 is connected to the foam sprayer 9, the vertical rod 20 drives the cam 24 to rotate, the cam 24 drives the swing rod 25 to swing back and forth, and the swing rod 25 drives the push rod 14 to move back and forth horizontally.

In this embodiment, the rectangular frame 12 is installed on the outside of the foam nozzle 9, the shaft rod 13 is installed on the push rod 14 in a rotating manner, the shaft rod 13 is movably connected with the rectangular frame 12, the supporting block is installed at the bottom of the supporting plate 4, the push rod 14 is installed on the supporting block in a sliding manner, and the push rod 14 can meet the arc-shaped movement track of the foam nozzle 9 through the matching of the shaft rod 13 and the rectangular frame 12.

In this embodiment, the pneumatic power mechanism includes a pneumatic cylinder 26, a pneumatic plate 27, a pressure rod 28 and a return spring 29, the pneumatic cylinder 26 is installed on the inner wall of the box body 1, the pneumatic plate 27 is slidably connected with the inner wall of the pneumatic cylinder 26, the pressure rod 28 is connected with the bottom of the pneumatic plate 27, the return spring 29 is sleeved on the outer side of the pressure rod 28, the top end of the return spring 29 is connected with the pneumatic plate 27, the bottom end of the return spring 29 is connected with the inner wall of the bottom of the pneumatic cylinder 26, the pressure rod 28 is connected with the top of the baffle 30, an exhaust hole 32 is formed in the outer side of the pneumatic cylinder 26, the top of the pneumatic cylinder 26 is communicated with an air pipe 15, and the air pipe 15 is communicated with the cylinder 19.

In this embodiment, the vertical rod 20 drives the fan 21 to rotate, the fan 21 rotates to send airflow into the two air pipes 15, and then the airflow enters the two air pressure cylinders 26, the air pressure plate 27 in the air pressure cylinders 26 moves downward and compresses the return spring 29, the air pressure plate 27 drives the pressure rod 28 to move downward, the pressure rod 28 drives the baffle 30 to move downward, so that the communication hole 31 and the heat dissipation hole 3 are dislocated, and oxygen can be sealed and isolated in the box body 1.

In this embodiment, the outer side of the rotating rod 16 is sleeved with a second bevel gear 23, the top end of the vertical rod 20 is sleeved with a first bevel gear 22, and the first bevel gear 22 is meshed with the second bevel gear 23.

In this embodiment, the left side threaded connection of a foam cylinder 6 has the internal thread lid 7, and the outside of internal thread lid 7 is provided with handle 37, dismantles internal thread lid 7, can add the foam to a foam cylinder 6 in, can used repeatedly.

In this embodiment, the bottom of the foam cylinder 6 is communicated with a metal tube 38, the bottom end of the metal tube 38 is communicated with a hose 10, and the hose 10 is communicated with the foam nozzle 9.

In this embodiment, the bottom of backup pad 4 rotates and installs support frame 11, and foam shower nozzle 9 rotates with support frame 11 to be connected, and support frame 11 supports foam shower nozzle 9.

In the embodiment, when the smoke sensor senses smoke or sparks in the box body 1, the servo motor 5 is started, the servo motor 5 drives the rotating rod 16 to rotate, the rotating rod 16 drives the spiral blade 17 to rotate in the air cylinder 18 to blow air into the foam cylinder 6, the air pressure in the foam cylinder 6 is increased to guide foam in the foam cylinder 6 into the metal pipe 38, then the foam enters the foam nozzle 9 through the hose 10, the foam is sprayed into the box body 1 through the foam nozzle 9, a fire extinguishing effect can be achieved, meanwhile, the rotating rod 16 drives the vertical rod 20 to rotate through the first bevel gear 22 and the second bevel gear 23, the vertical rod 20 drives the fan 21 to rotate, the fan 21 rotates to send airflow into the two air pipes 15, then the airflow enters the two air pressure cylinders 26, the air pressure plates 27 in the air pressure cylinders 26 move downwards and compress the return springs 29, and the air pressure plates 27 drive the pressure rods 28 to move downwards, pressure pole 28 drives baffle 30 downstream, make intercommunicating pore 31 misplace with louvre 3, can be with box 1 internal seal isolated oxygen, improve the fire extinguishing effect, montant 20 drives cam 24 and rotates, cam 24 drives swinging arms 25 reciprocating swing, swinging arms 25 drives the reciprocal horizontal migration of push rod 14, push rod 14 drives foam nozzle 9 through axostylus axostyle 13 and rectangle frame 12 and reciprocates under the effect of support frame 11, foam nozzle 9 can evenly spray the foam in box 1, can play the homogeneity of putting out a fire, when accomplishing to put out a fire or normal use, servo motor 5 stop work, the elasticity effect at reset spring 29, pressure pole 28 pulling baffle 30 upward movement, make intercommunicating pore 31 and louvre 3 coincidence, can cool down to box 1 inside.

Example two

In this embodiment, an air hole 41 is formed between the foam cylinder 6 and the air cylinder 18, two guide rods 36 are slidably mounted on the foam cylinder 6, compression springs 35 are mounted on the outer sides of the two guide rods 36, the two compression springs 35 are connected with the foam cylinder 6, the same fixing rod 33 is mounted between the two guide rods 36, a blocking head 34 is mounted on the fixing rod 33, and the blocking head 34 is hermetically connected with the air hole 41.

In this embodiment, the difference between the second embodiment and the first embodiment is: the air current needs to push open the choke plug 34 before entering foam cylinder 6, push up and move the choke plug 34 and leave air pocket 41 after atmospheric pressure reaches the removal degree, then in entering foam cylinder 6, can avoid on the one hand the foam in the foam cylinder 6 when not using to diffuse in inflator 18, on the other hand can get into in the foam cylinder 6 after atmospheric pressure is built up to certain degree, can increase the impact atmospheric pressure to the foam, improve foam injection effect, all structures in this application can all carry out the selection of material and length according to the in-service use condition, the drawing is schematic structure chart, specific actual size can make appropriate adjustment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An electrical control box for engineering machinery comprises a box body (1), wherein four support legs (40) are arranged at the bottom of the box body (1), an electrical element (39) is arranged in the box body (1), two box covers (2) are rotatably arranged on the front surface of the box body (1), the electrical control box is characterized in that a smoke sensor is arranged on the rear side of the inner wall of the box body (1), a plurality of heat dissipation holes (3) are formed in the two sides of the box body (1), a supporting plate (4) is fixedly arranged in the box body (1), a foam sprayer (9) is rotatably arranged at the bottom of the supporting plate (4), a foam cylinder (6) is arranged on the inner wall of the top of the box body (1), a separation net (8) is arranged in the foam cylinder (6), a servo motor (5) is arranged on the inner wall of the right side of the box body (1), a rotating rod (16) is connected to an output shaft of the servo motor (5), and an air cylinder (18) is arranged on the right side of the foam cylinder (6), the rotary rod (16) is rotationally connected with the air cylinder (18), the spiral blade (17) is installed on the outer side of the rotary rod (16), the spiral blade (17) is located in the air cylinder (18), the cylinder (19) is embedded in the supporting plate (4), the vertical rod (20) is installed in the cylinder (19) in a rotating mode, the fan (21) is installed on the outer side of the vertical rod (20), the fan (21) is located in the cylinder (19), the top end of the vertical rod (20) is rotationally connected with the rotary rod (16), the bottom of the vertical rod (20) is connected with the reciprocating mechanism, the reciprocating mechanism is connected with the foam sprayer (9), the baffle plates (30) are installed on the inner walls of the two sides of the box body (1) in a sliding mode, the two communicating holes (31) are formed in the two baffle plates (30), the communicating holes (31) are repeated with the corresponding heat dissipation holes (3), the inner walls of the two sides of the box body (1) are provided with air pressure power mechanisms, the two air pressure power mechanisms are communicated with the uniform cylinder (19), the baffle (30) is connected with a corresponding pneumatic power mechanism.

2. An electric control box for a working machine according to claim 1, characterized in that the reciprocating mechanism comprises a cam (24), a swinging rod (25) and a push rod (14), the cam (24) is connected with the bottom end of the vertical rod (20), the swinging rod (25) is rotatably connected with the eccentric position of the cam (24), and the other end of the swinging rod (25) is connected with the foam nozzle (9).

3. The electrical control box for the engineering machinery is characterized in that a rectangular frame (12) is installed on the outer side of the foam nozzle (9), a shaft rod (13) is installed on the push rod (14) in a rotating mode, and the shaft rod (13) is movably connected with the rectangular frame (12).

4. An electrical control box for a working machine according to claim 1, characterized in that the bottom of the support plate (4) is provided with a support block on which the push rod (14) is slidably mounted.

5. The electrical control box for engineering machinery according to claim 1, wherein the pneumatic power mechanism comprises a pneumatic cylinder (26), a pneumatic plate (27), a pressure rod (28) and a return spring (29), the pneumatic cylinder (26) is mounted on the inner wall of the box body (1), the pneumatic plate (27) is slidably connected with the inner wall of the pneumatic cylinder (26), the pressure rod (28) is connected with the bottom of the pneumatic plate (27), the return spring (29) is sleeved on the outer side of the pressure rod (28), the top end of the return spring (29) is connected with the pneumatic plate (27), the bottom end of the return spring (29) is connected with the inner wall of the bottom of the pneumatic cylinder (26), and the pressure rod (28) is connected with the top of the baffle (30).

6. The electrical control box for engineering machinery according to claim 5, wherein the outer side of the pneumatic cylinder (26) is provided with an exhaust hole (32), the top of the pneumatic cylinder (26) is communicated with an air pipe (15), and the air pipe (15) is communicated with the cylinder (19).

7. The electrical control box for engineering machinery according to claim 1, wherein a second bevel gear (23) is sleeved outside the rotating rod (16), a first bevel gear (22) is sleeved on the top end of the vertical rod (20), and the first bevel gear (22) is meshed with the second bevel gear (23).

8. An electric control box for construction machinery according to claim 1, wherein an internally threaded cap (7) is screwed to the left side of the foam cylinder (6), and a handle (37) is provided on the outside of the internally threaded cap (7).

9. The electrical control box for the engineering machinery is characterized in that the bottom of the foam cylinder (6) is communicated with a metal pipe (38), the bottom end of the metal pipe (38) is communicated with a hose (10), and the hose (10) is communicated with the foam nozzle (9).

10. The electrical control box for engineering machinery as claimed in claim 1, wherein a support frame (11) is rotatably mounted at the bottom of the support plate (4), and the foam nozzle (9) is rotatably connected with the support frame (11).