Multi-protection electric appliance control box

Abstract

The invention relates to the technical field of electric appliance control boxes, and discloses a multi-protection electric appliance control box which comprises a control box body. The box door is hinged to the opening of the control box body; the reinforcing frame is fixedly installed on the inner side wall, located on the outer side of the opening, of the control box body; the control switch is arranged on the inner side wall of the control box body through a cross beam; the plurality of ventilation openings are symmetrically formed in the control box body; by arranging the box door and the reinforcing assembly, a sliding block drives a threaded sleeve to rotate when sliding downwards, then an adjusting screw extends out along a guide groove, a connecting frame and a supporting plate are driven to move, the box door and a reinforcing frame are firmly connected, response is fast, and the structural strength of the box door is remarkably enhanced; the anti-impact capability of the electrical control box in an explosion environment is further improved, manual intervention is not needed, the box door is effectively prevented from falling off and flying out during explosion, and the safety protection capability of the electrical control box in a crisis is enhanced.

Description

Technical Field

[0001] This invention relates to the field of electrical control box technology, and in particular to an electrical control box with multiple protection features. Background Technology

[0002] Electrical control boxes are key equipment used to install, protect, and control power systems. They play a vital role in industrial automation and power distribution. Electrical control boxes typically consist of a metal enclosure, electrical components, terminals, indicator lights, etc. Their main function is to assemble electrical components within a enclosure and use control circuits to ensure the normal operation and protection of the equipment. This type of equipment is widely used in various industrial automation control systems to ensure the stability and safety of the system.

[0003] A search revealed that Chinese patent CN110730582A discloses an electrical control box for a refrigeration unit with a built-in protective structure. The box includes an outer shell and an inner shell. A base is fixedly mounted on the bottom of the outer shell via a support rod. An installation cavity is fixedly mounted on the top of the outer shell. Fans are fixedly mounted on both sides of the installation cavity. An installation chamber is fixedly mounted on the top of the installation cavity. The output end of the fan communicates with the installation chamber via an installation cylinder. A resistance heating wire is fixedly mounted inside the installation cylinder. The support plate, fixing components, and reinforcing plate of this invention effectively improve the overall strength of the control box, avoiding or reducing deformation caused by collisions or human damage, thus better ensuring stable operation. The inner and outer shells provide double-layer protection, ensuring stable operation while reducing the impact of external factors and extending the box's service life. However, the above solution still has the following shortcomings in practical use: In industrial environments involving flammable and explosive substances, the safety of electrical control boxes, as critical control and protection equipment, is of paramount importance. In such environments, the air may be filled with flammable gases, dust, or other flammable and explosive media. Once an electrical fault, short circuit, arc discharge, or overheating occurs inside the electrical control box, an explosion can easily occur. During an explosion, the structural integrity of the electrical control box faces a severe test, especially the door. Since it is usually not a completely integrated design with the main body of the control box but is connected by hinges, latches, and other components, the door may become the weakest link under the strong impact of an explosion. Once the door is blown off in an explosion, it will not only expose the internal components of the control box, increasing the risk of fire spread, but the flying debris from the door may also become a secondary source of injury, causing further damage to surrounding personnel, equipment, and even building structures, thus greatly expanding the scope and severity of the explosion accident.

[0004] Therefore, a multi-protection electrical control box needs to be designed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-protection electrical control box.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-protection electrical control box, comprising: Control box; The door is hinged to the opening of the control box. A reinforcing frame is fixedly installed on the inner sidewall of the control box located outside the opening; The control switch is mounted on the inner wall of the control box via a crossbeam; Several ventilation openings are symmetrically arranged on the control box; Two sets of triggering components are symmetrically arranged on the inner side wall of the control box; Two sets of shielding components are symmetrically arranged on the control box at positions corresponding to the ventilation openings; Two sets of reinforcement components are symmetrically arranged on the inner sidewall of the control box; A plug-in mechanism is provided on the reinforcing frame; The insertion mechanism includes: Several protective plates are linearly arrayed and slidably installed on the inner side wall of the box door; Several elastic plates are fixedly installed between several of the aforementioned protective plates; Several clearance openings are symmetrically arranged in a linear array on the side of the box door; Several plug-in rods are symmetrically arranged in a linear array and fixedly installed on the side of the protective plate at the position corresponding to the clearance opening; Two brackets are symmetrically and fixedly installed on the control box. Two sets of warning components are symmetrically arranged on the control box, and the warning components are used in conjunction with the triggering components to alert staff.

[0007] As a preferred embodiment of the present invention, the triggering component includes: A top rod is rotatably mounted on the inner side wall of the control box, and the top rod is adapted to the switch position of the top row of control switches; Two torsion springs are fitted onto both ends of the top rod, and the two ends of the torsion springs are fixedly connected to the top rod and the inner side wall of the control box, respectively. A take-up roller is rotatably mounted on the inner side wall of the control box. The guide rod is fixedly installed on the inner side wall of the control box located below the take-up roller; The slider is mounted on the guide rod. A counterweight is fixedly installed on the side wall of the slider; A connecting cable is disposed inside the take-up roller, and one end of the connecting cable away from the take-up roller is fixedly connected to the top surface of the slider.

[0008] As a preferred embodiment of the present invention, a limiting plate adapted to the top rod is fixedly installed on the outer wall of the end of the take-up roller away from the control box.

[0009] As a preferred embodiment of the present invention, the covering component includes: Several mounting slots are respectively opened on the inner top wall of several of the ventilation openings; Several cover plates are slidably installed on the inner sidewalls of several of the mounting slots; Several slots are respectively opened on the inner bottom wall of several of the aforementioned ventilation openings; An inner cavity is formed inside the control box, and the inner cavity is connected to several of the ventilation openings; The drive rod is slidably mounted on the inner wall of the cavity; Several connecting rods are fixedly installed at the bottom ends of several of the cover plates, and the end of each connecting rod away from the cover plate is fixedly connected to the drive rod. The transmission mechanism is located on the inner side wall of the control box.

[0010] As a preferred embodiment of the present invention, the transmission mechanism includes: A connecting port is provided on the inner side wall of the control box, located below the slider, and the connecting port communicates with the inner cavity; A connecting plate is slidably installed on the inner side wall of the communication port, and one end of the connecting plate is fixedly connected to the drive rod; A support spring is fixedly installed between the bottom surface of the connecting plate and the inner bottom wall of the communication port.

[0011] As a preferred embodiment of the present invention, the reinforcement component includes: A fixing sleeve is fixedly installed on the inner side wall of the control box; A threaded sleeve is rotatably mounted at the end of the fixed sleeve away from the control box. An adjusting screw is disposed inside the fixed sleeve and the threaded sleeve, and the adjusting screw is threadedly connected to the threaded sleeve; A guide groove is formed on the inner side wall of the fixed sleeve; A guide block is fixedly installed at one end of the adjusting screw located inside the fixed sleeve, and the guide block is slidably connected to the guide groove; A fixed rack is fixedly installed on the side wall of the slider; A number of teeth are fixedly installed on the outer wall of the threaded sleeve in a ring array, and the teeth mesh with the fixed rack.

[0012] As a preferred embodiment of the present invention, the insertion mechanism further includes: The connecting bracket is fixedly installed at one end of the adjusting screw located outside the fixed sleeve; A support plate is fixedly installed at the end of the connecting frame away from the adjusting screw, and the support plate is opposite to the reinforcing frame; Several plug-in sleeves are fixedly installed on the side of the support plate in a linear array, and the plug-in sleeves pass through the reinforcing frame.

[0013] As a preferred embodiment of the present invention, the diameter of the clearance opening is the same as the outer diameter of the insertion sleeve, and the inner diameter of the insertion sleeve is the same as the diameter of the insertion rod.

[0014] As a preferred embodiment of the present invention, the warning component includes: The mounting plate is fixedly installed on the end of the bracket away from the control box. A connecting screw is rotatably mounted on the side wall of the control box, and one end of the connecting screw passes through the control box and is fixedly connected to the take-up roller; A threaded ring is threadedly fitted onto the connecting screw. Two indicator panels are symmetrically hinged to the mounting plate; Two transmission plates are symmetrically hinged to the threaded ring, and the end of the transmission plate away from the threaded ring is hinged to the indicator plate.

[0015] As a preferred embodiment of the present invention, the outer wall of the indicator panel is coated with an indicator color.

[0016] The present invention has the following beneficial effects: 1. By setting trigger components and cover components, when the main control switch is de-energized, the top rod is squeezed and rotated, releasing the limit on the take-up roller, causing the counterweight block to pull the slider down. Through the squeezing action of the slider on the connecting plate, the ventilation opening is automatically closed. The slider slides down and pushes the connecting plate to close the ventilation opening, quickly cutting off the external air circulation path, reducing the possibility of explosive gas or flame entering the control box, and enhancing the sealing and explosion-proof performance of the electrical control box. 2. By setting up the box door and reinforcement components, when the slider slides down, it drives the threaded sleeve to rotate, which in turn causes the adjusting screw to extend along the guide groove, driving the connecting frame and support plate to move, and firmly connecting the box door and the reinforcement frame. This not only provides a rapid response, but also significantly enhances the structural strength of the box door, further improving the electrical control box's impact resistance in an explosive environment. It requires no manual intervention, effectively preventing the box door from falling off and flying out during an explosion, and enhancing the electrical control box's safety protection capability in crisis situations. 3. By setting up a bracket and warning components, the indicator board rises and unfolds as the winding roller unwinds. This visual prompting function allows staff to quickly identify whether the power inside the control box has been cut off during inspections, facilitating timely implementation of appropriate measures and improving the efficiency and accuracy of fault handling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an electrical control box with multiple protections proposed in this invention. Figure 2 This is a first-view structural schematic diagram of a multi-protection electrical control box proposed in this invention, showing a partial cross-section of the entire structure. Figure 3 This is a partial cross-section of the electrical control box with multiple protections proposed in this invention, shown from a second-view perspective. Figure 4 For the present invention Figure 3 A magnified structural diagram at point A; Figure 5 This is a schematic diagram of a partial cross-section of the overall structure of an electrical control box with multiple protections proposed in this invention. Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point B; Figure 7 This is a schematic diagram of a fixed sleeve structure for a multi-protection electrical control box proposed in this invention; Figure 8 For the present invention Figure 1 A magnified structural diagram at point C.

[0018] In the diagram: 1. Control box; 2. Box door; 3. Reinforcing frame; 4. Control switch; 5. Ventilation opening; 61. Top rod; 62. Torsion spring; 63. Take-up roller; 64. Guide rod; 65. Slider; 66. Counterweight; 67. Connecting cable; 71. Mounting groove; 72. Cover plate; 73. Slot; 74. Inner cavity; 75. Drive rod; 76. Connecting rod; 77. Connecting port; 78. Connecting plate; 79. Support spring; 81. Fixing sleeve 82. Threaded sleeve; 83. Adjusting screw; 84. Guide groove; 85. Guide block; 86. Fixed rack; 87. Tooth; 88. Connecting frame; 89. Support plate; 810. Insert sleeve; 811. Protective plate; 812. Elastic plate; 813. Clearance opening; 814. Insert rod; 9. Bracket; 101. Mounting plate; 102. Connecting screw; 103. Threaded ring; 104. Indicator plate; 105. Transmission plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-8 A multi-protection electrical control box includes a control box body 1; a door 2 hinged to the opening of the control box body 1; a reinforcing frame 3 fixedly installed on the inner wall of the control box body 1 located outside the opening; a control switch 4 mounted on the inner wall of the control box body 1 via a crossbeam; several ventilation openings 5 ​​symmetrically opened on the control box body 1; two sets of triggering components symmetrically arranged on the inner wall of the control box body 1; two sets of covering components symmetrically arranged on the control box body 1 at positions corresponding to the ventilation openings 5; and two sets of reinforcing components symmetrically arranged on the inner wall of the control box body 1. Two brackets 9 are symmetrically fixed on the control box 1; two sets of warning components are symmetrically arranged on the control box 1, and the warning components work together with the trigger components to alert the staff; during normal use, the control box 1 can be installed in the usage position and the box door 2 can be closed. The ventilation vent 5 on the control box 1 can dissipate heat inside. At this time, the control switch 4 in the control box 1 is in the open state, and the top row contains the main control switch. In case of emergency, the main control switch 4 in the top row can cut off the power first.

[0021] Reference Figure 2 , Figure 3 , Figure 4The triggering components include: a push rod 61, rotatably mounted on the inner wall of the control box 1, and the push rod 61 is adapted to the switch position of the top row of control switches 4; two torsion springs 62, fitted on both ends of the push rod 61, and the two ends of the torsion springs 62 are respectively fixedly connected to the push rod 61 and the inner wall of the control box 1; a take-up roller 63, rotatably mounted on the inner wall of the control box 1, and a limiting plate adapted to the push rod 61 is fixedly mounted on the outer wall of the end of the take-up roller 63 away from the control box 1; a guide rod 64, fixedly mounted on the inner wall of the control box 1 below the take-up roller 63; a slider 65, slidably fitted on the guide rod 64; and a counterweight 66, fixedly mounted on... The side wall of the slider 65; the connecting cable 67 is set inside the take-up roller 63, and the end of the connecting cable 67 away from the take-up roller 63 is fixedly connected to the top surface of the slider 65; in case of emergency, the main control switch 4 at the top row can be the first to cut off the power. At this time, the switch 4 can be flipped down and squeeze the top rod 61, causing the top rod 61 to rotate. After the top rod 61 rotates, it can separate from the limiting plate at the end of the take-up roller 63, so that the take-up roller 63 is released from the limit. At this time, under the traction of the counterweight 66, the slider 65 can slide down along the guide rod 64 and pull the connecting cable 67 in the take-up roller 63.

[0022] Reference Figure 4 , Figure 5 , Figure 6 The covering assembly includes: a plurality of mounting slots 71, each formed on the inner top wall of a plurality of ventilation openings 5; a plurality of cover plates 72, each slidably mounted on the inner side wall of the plurality of mounting slots 71; a plurality of slots 73, each formed on the inner bottom wall of the plurality of ventilation openings 5; an inner cavity 74, formed inside the control box 1, and communicating with the plurality of ventilation openings 5; a drive rod 75, slidably mounted on the inner side wall of the inner cavity 74; and a plurality of connecting rods 76, each fixedly mounted on the plurality of cover plates. The bottom end of 72, and the end of the connecting rod 76 away from the cover plate 72, is fixedly connected to the drive rod 75; the transmission mechanism is set on the inner wall of the control box 1; under the action of the transmission mechanism, the connecting rod 76 can drive the drive rod 75 to slide down along the inner cavity 74, and drive the cover plate 72 in the mounting groove 71 to slide down, so that the bottom end of the cover plate 72 enters the slot 73. The cover plate 72 can cover the ventilation port 5, realize the sealing of the control box 1, and further reduce the impact force of the explosion.

[0023] Reference Figure 4The transmission mechanism includes: a connecting port 77, which is located on the inner wall of the control box 1 below the slider 65 and is connected to the inner cavity 74; a connecting plate 78, which is slidably installed on the inner wall of the connecting port 77 and one end of the connecting plate 78 is fixedly connected to the drive rod 75; and a support spring 79, which is fixedly installed between the bottom surface of the connecting plate 78 and the inner bottom wall of the connecting port 77. During the continuous sliding of the slider 65, the connecting plate 78 can be squeezed in the connecting port 77, causing the connecting plate 78 to slide downward along the connecting port 77. During the sliding of the connecting plate 78, the drive rod 75 can be driven to slide downward along the inner cavity 74 through the connecting rod 76.

[0024] Reference Figure 1 , Figure 2 , Figure 7 The reinforcement components include: a fixed sleeve 81, fixedly installed on the inner wall of the control box 1; a threaded sleeve 82, rotatably installed at the end of the fixed sleeve 81 away from the control box 1; an adjusting screw 83, disposed inside the fixed sleeve 81 and the threaded sleeve 82, and threadedly connected to the threaded sleeve 82; a guide groove 84, formed on the inner wall of the fixed sleeve 81; a guide block 85, fixedly installed at the end of the adjusting screw 83 located inside the fixed sleeve 81, and slidably connected to the guide groove 84; a fixed rack 86, fixedly installed on the side wall of the slider 65; and several teeth 87. The threads are fixedly installed on the outer wall of the threaded sleeve 82 in a ring array, and the teeth 87 mesh with the fixed rack 86; the insertion mechanism is set on the reinforcing frame 3; during the downward sliding of the slider 65, the threaded sleeve 82 and the teeth 87 on it can be driven to rotate through the fixed rack 86 on the side wall. When the threaded sleeve 82 rotates, since the adjusting screw 83 is slidably connected to the fixed sleeve 81 through the guide block 85 and the guide groove 84, the adjusting screw 83 can be driven to slide out of the fixed sleeve 81 along the guide groove 84 when the threaded sleeve 82 rotates, so that the overall length of the fixed sleeve 81 and the adjusting screw 83 becomes longer.

[0025] Reference Figure 1 , Figure 2The insertion mechanism includes: a connecting frame 88, fixedly installed at the end of the adjusting screw 83 located outside the fixed sleeve 81; a support plate 89, fixedly installed at the end of the connecting frame 88 away from the adjusting screw 83, and the support plate 89 is opposite to the reinforcing frame 3; a plurality of insertion sleeves 810, arranged in a linear array and fixedly installed on the side of the support plate 89, and the insertion sleeves 810 pass through the reinforcing frame 3; a plurality of protective plates 811, arranged in a linear array and slidably installed on the inner side wall of the door 2; a plurality of elastic plates 812, fixedly installed between the plurality of protective plates 811; a plurality of clearance openings 813, symmetrically arranged in a linear array on the side of the door 2, the diameter of the clearance openings 813 being the same as the outer diameter of the insertion sleeves 810; and a plurality of insertion rods 814, symmetrically arranged in a linear array and fixedly installed. The inner diameter of the insertion sleeve 810 is the same as the diameter of the insertion rod 814, which is installed on the side of the protective plate 811 at the corresponding position of the relief opening 813. When the adjusting screw 83 extends out of the fixed sleeve 81, it can drive the connecting frame 88 and the support plate 89 to move, so that the insertion sleeve 810 on the support plate 89 can slide and pass through the relief opening 813 on the box door 2 to connect with the insertion rod 814 on the side of the protective plate 811. This connects the two sides of the box door 2 with the reinforcing frame 3, further reinforcing the box door 2 and preventing it from falling off and flying out in the event of an explosion. In the event of an explosion, the protective plate 811 can protect the box door 2, and the impact force of the explosion can impact the elastic plate 812, causing the elastic plate 812 to deform and alleviate the impact force, further improving the protective effect.

[0026] Reference Figure 1 , Figure 8 The warning components include: a mounting plate 101, fixedly mounted on the end of the bracket 9 away from the control box 1; a connecting screw 102, rotatably mounted on the side wall of the control box 1, with one end of the connecting screw 102 passing through the control box 1 and fixedly connected to the take-up roller 63; a threaded ring 103, threadedly fitted onto the connecting screw 102; two indicator plates 104, symmetrically hinged to the mounting plate 101, with the outer surface of the indicator plates 104 painted with indicator colors; and two transmission plates 105, symmetrically hinged to the threaded ring 103, with the transmission plates 105 at the end away from the threaded ring 103. Hinged to the indicator plate 104; during the unwinding rotation of the take-up roller 63, the connecting screw 102 can be driven to rotate. During the rotation of the connecting screw 102, since both ends of the transmission plate 105 are hinged to the indicator plate 104 and the threaded ring 103, and one end of the indicator plate 104 is hinged to the mounting plate 101, the rotation of the connecting screw 102 can drive the threaded ring 103 to move, and drive the transmission plate 105 to rotate, lifting the indicator plate 104, so that the indicator plate 104 can indicate the power failure inside the control box 1, so that the staff can observe it during inspection.

[0027] The specific working principle of this invention is as follows: During normal use, the control box 1 can be installed at the usage position and the door 2 can be closed. The ventilation vent 5 on the control box 1 can dissipate heat inside. At this time, the control switch 4 in the control box 1 is in the open state, and the top rod 61 can be engaged with the switch of the top row of control switches 4. The top row contains the main control switch. In case of emergency, the main control switch 4 in the top row can cut off the power first. At this time, the switch of the control switch 4 can pop down and squeeze the top rod 61, causing the top rod 61 to rotate. After the top rod 61 rotates, it can separate from the limiting plate at the end of the take-up roller 63, so that the take-up roller 63 is released from the limit. At this time, under the traction of the counterweight 66, the slider 65 can slide down along the guide rod 64 and pull the connecting cable 67 in the take-up roller 63. During the downward sliding of slider 65, the threaded sleeve 82 and its teeth 87 are first rotated by the fixed rack 86 on the side wall. When the threaded sleeve 82 rotates, since the adjusting screw 83 is slidably connected to the fixed sleeve 81 through the guide block 85 and the guide groove 84, the rotation of the threaded sleeve 82 can drive the adjusting screw 83 to slide out of the fixed sleeve 81 along the guide groove 84, thus increasing the overall length of the fixed sleeve 81 and the adjusting screw 83. When the adjusting screw 83 extends out of the fixed sleeve 81, it can drive the connecting frame 88 and the support plate 89 to move. The movement allows the insert sleeve 810 on the support plate 89 to slide and pass through the clearance opening 813 on the box door 2 to connect with the insert rod 814 on the side of the protective plate 811, so that both sides of the box door 2 are connected to the reinforcing frame 3, further reinforcing the box door 2 and preventing the box door 2 from falling off and flying out in the event of an explosion. In the event of an explosion, the protective plate 811 can protect the box door 2, and the impact force of the explosion can impact the elastic plate 812, causing the elastic plate 812 to deform to alleviate the impact force, further improving the protective effect. During the continuous sliding of the slider 65, it can squeeze the connecting plate 78 in the connecting port 77, causing the connecting plate 78 to slide downward along the connecting port 77. During the sliding of the connecting plate 78, the connecting rod 76 can drive the drive rod 75 to slide downward along the inner cavity 74, and drive the cover plate 72 in the mounting groove 71 to slide downward, so that the bottom end of the cover plate 72 enters the slot 73. The cover plate 72 can cover the ventilation port 5, thereby sealing the control box 1 and further reducing the impact force of the explosion. During the unwinding and rotation of the take-up roller 63, the connecting screw 102 can be driven to rotate. During the rotation of the connecting screw 102, since both ends of the transmission plate 105 are hinged to the indicator plate 104 and the threaded ring 103, and one end of the indicator plate 104 is hinged to the mounting plate 101, the rotation of the connecting screw 102 can drive the threaded ring 103 to move, and drive the transmission plate 105 to rotate and lift the indicator plate 104, so that the indicator plate 104 can indicate the power failure inside the control box 1, so that the staff can observe it during inspection. For the handling work after the power failure, the staff can reverse the connecting screw 102, so that the door 2 can be unsecured, so that the inside of the control box 1 can be inspected.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-protection electrical control box, characterized in that, include: Control box (1); The door (2) is hinged to the opening of the control box (1); The reinforcing frame (3) is fixedly installed on the inner side wall of the control box (1) located outside the opening; The control switch (4) is mounted on the inner wall of the control box (1) via a crossbeam; Several ventilation openings (5) are symmetrically arranged on the control box (1); Two sets of triggering components are symmetrically arranged on the inner sidewall of the control box (1); Two sets of covering components are symmetrically arranged on the control box (1) at positions corresponding to the ventilation opening (5); Two sets of reinforcement components are symmetrically arranged on the inner sidewall of the control box (1); A plug-in mechanism is provided on the reinforcing frame (3); The insertion mechanism includes: Several protective plates (811) are linearly arrayed and slidably installed on the inner side wall of the box door (2); Several elastic plates (812) are fixedly installed between several of the aforementioned protective plates (811); Several clearance openings (813) are symmetrically arranged in a linear array on the side of the box door (2); Several plug rods (814) are symmetrically arranged in a linear array and fixedly installed on the side of the protective plate (811) at the position corresponding to the relief opening (813); Two brackets (9) are symmetrically fixedly installed on the control box (1); Two sets of warning components are symmetrically arranged on the control box (1), and the warning components are used in conjunction with the triggering components to alert the staff.

2. The multi-protection electrical control box according to claim 1, characterized in that, The triggering component includes: The top rod (61) is rotatably installed on the inner side wall of the control box (1), and the top rod (61) is adapted to the switch position of the uppermost control switch (4); Two torsion springs (62) are fitted onto both ends of the top rod (61), and both ends of the torsion springs (62) are fixedly connected to the top rod (61) and the inner sidewall of the control box (1), respectively. The take-up roller (63) is rotatably mounted on the inner side wall of the control box (1); The guide rod (64) is fixedly installed on the inner side wall of the control box (1) located below the winding roller (63); The slider (65) is mounted on the guide rod (64); A counterweight (66) is fixedly installed on the side wall of the slider (65); A connecting cable (67) is provided on the inner side of the take-up roller (63), and one end of the connecting cable (67) away from the take-up roller (63) is fixedly connected to the top surface of the slider (65).

3. The multi-protection electrical control box according to claim 2, characterized in that, A limiting plate adapted to the top rod (61) is fixedly installed on the outer wall of the end of the take-up roller (63) away from the control box (1).

4. The multi-protection electrical control box according to claim 3, characterized in that, The covering component includes: Several mounting slots (71) are respectively opened on the inner top wall of several ventilation openings (5); Several cover plates (72) are slidably installed on the inner sidewalls of several mounting slots (71); Several slots (73) are respectively opened on the inner bottom wall of several of the ventilation openings (5); The inner cavity (74) is opened inside the control box (1), and the inner cavity (74) is connected to a plurality of the ventilation openings (5); The drive rod (75) is slidably mounted on the inner wall of the inner cavity (74); Several connecting rods (76) are fixedly installed at the bottom ends of several cover plates (72), and the end of the connecting rod (76) away from the cover plate (72) is fixedly connected to the drive rod (75); The transmission mechanism is located on the inner side wall of the control box (1).

5. The multi-protection electrical control box according to claim 4, characterized in that, The transmission mechanism includes: A connecting port (77) is provided on the inner side wall of the control box (1) below the slider (65), and the connecting port (77) is connected to the inner cavity (74); A connecting plate (78) is slidably installed on the inner side wall of the communication port (77), and one end of the connecting plate (78) is fixedly connected to the drive rod (75); A support spring (79) is fixedly installed between the bottom surface of the connecting plate (78) and the inner bottom wall of the communication port (77).

6. The multi-protection electrical control box according to claim 5, characterized in that, The reinforcement components include: A fixing sleeve (81) is fixedly installed on the inner side wall of the control box (1); A threaded sleeve (82) is rotatably mounted on the end of the fixed sleeve (81) away from the control box (1); An adjusting screw (83) is disposed inside the fixed sleeve (81) and the threaded sleeve (82), and the adjusting screw (83) is threadedly connected to the threaded sleeve (82). A guide groove (84) is formed on the inner side wall of the fixed sleeve (81); The guide block (85) is fixedly installed at one end of the adjusting screw (83) located inside the fixed sleeve (81), and the guide block (85) is slidably connected to the guide groove (84); A fixed rack (86) is fixedly installed on the side wall of the slider (65); A number of teeth (87) are fixedly installed on the outer wall of the threaded sleeve (82) in a ring array, and the teeth (87) mesh with the fixed rack (86).

7. The multi-protection electrical control box according to claim 6, characterized in that, The insertion mechanism further includes: The connecting bracket (88) is fixedly installed at one end of the adjusting screw (83) located outside the fixed sleeve (81); A support plate (89) is fixedly installed at one end of the connecting frame (88) away from the adjusting screw (83), and the support plate (89) is opposite to the reinforcing frame (3); Several plug-in sleeves (810) are fixedly installed on the side of the support plate (89) in a linear array, and the plug-in sleeves (810) pass through the reinforcing frame (3).

8. The multi-protection electrical control box according to claim 7, characterized in that, The diameter of the clearance opening (813) is the same as the outer diameter of the insertion sleeve (810), and the inner diameter of the insertion sleeve (810) is the same as the diameter of the insertion rod (814).

9. The multi-protection electrical control box according to claim 8, characterized in that, The warning component includes: Mounting plate (101) is fixedly installed on the bracket (9) at one end away from the control box (1); A connecting screw (102) is rotatably mounted on the side wall of the control box (1), and one end of the connecting screw (102) passes through the control box (1) and is fixedly connected to the take-up roller (63); A threaded ring (103) is threadedly fitted onto the connecting screw (102); Two indicator panels (104) are symmetrically hinged to the mounting plate (101); Two transmission plates (105) are symmetrically hinged to the threaded ring (103), and one end of the transmission plate (105) away from the threaded ring (103) is hinged to the indicator plate (104).

10. The multi-protection electrical control box according to claim 9, characterized in that, The outer wall of the warning panel (104) is painted with a warning color.

Images