Safety fence door of submerged chain conveyor

Abstract

The utility model relates to a submerged chain conveyor safety fence door which comprises a slag well, a fence, an access door and quick-opening doors, the quick-opening doors are arranged on the two sides, far away from the access door, of the fence, opening and closing of the quick-opening doors are controlled through air cylinder assemblies, and when a person gets close to the quick-opening doors, the person is sensed through a human body proximity sensor, and the quick-opening doors are controlled to be opened; the supporting end of the air cylinder body is provided with the supporting connecting rod, the supporting connecting rod is attracted and fixed through the electromagnet, under the power-off condition, the electromagnet disconnects attraction to the supporting connecting rod, the person can open the door leaf by pushing the door leaf of the quick-opening door, and the situation that under the power-off condition, the door leaf is damaged is avoided. The cylinder body cannot be controlled to stretch out and draw back, so that people cannot evacuate from the quick-opening door.

Description

Technical Field

[0001] The utility model relates to the technical field of fence doors, in particular to a safety fence door for a slag scooping machine. Background Art

[0002] The function of the wet slag dredger is to remove the slag that falls into the slag pit to the slag bin. When a large piece of coke falls from the furnace, high-temperature cooling water overflows, or the bottom steam-water pipe leaks, which may cause harm to the workers. Therefore, safety fences are arranged around the slag pit to prevent unauthorized personnel from approaching the slag pit.

[0003] The current fence has a commonly used entrance and exit door, but the personnel in the areas on both sides far away from the entrance and exit door are far away from the entrance and exit door. When an abnormality occurs in the slag pit, such as when a foreign object falls into the slag pit, the high-temperature liquid splashes out, and the personnel in the fence need to evacuate quickly. The personnel in the areas on both sides far away from the entrance and exit door are easily burned by the high-temperature liquid in the process of going to the entrance and exit door. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above technical problems, the utility model provides a safety fence door for a slag scoop machine.

[0006] (II) Technical solution

[0007] Based on this, the utility model provides the following technical solutions: a safety fence door for a slag dredger, comprising a slag pit and a quick-opening door, a fence is arranged outside the slag pit, an entry and exit door is arranged on the left and right sides of the fence, and quick-opening doors are arranged on the front and rear sides of the fence, the quick-opening door comprises a left door leaf assembly, a right door leaf assembly and an air compressor, and the left side of the left door leaf assembly and the right side of the right door leaf assembly are respectively connected to the fence;

[0008] The left door leaf assembly includes a door leaf, a door leaf shaft, a door frame, a cylinder assembly, a support plate, a human proximity sensor and a controller. The left side of the door leaf is rotatably connected to the door frame via the door leaf shaft. One end of the cylinder assembly is connected to the door leaf, and the other end of the cylinder assembly is connected to the support plate. The support plate is fixed to the left side of the door frame. A human proximity sensor and a controller are installed on the rear side of the support plate. The left end of the support plate is fixedly connected to the fence.

[0009] Preferably, the cylinder assembly includes a cylinder body, hinge one, hinge two, a support link, a fixed shaft, a support block, a magnet and an electromagnet. The right end of the cylinder body is hinged to the door leaf through hinge one, and the left end of the cylinder body is hinged to the support link through hinge two. The middle part of the support link rotates along the fixed shaft, and the fixed shaft is fixed on the support block. A magnet is fixed to the front side of the left end of the support link, and an electromagnet is arranged at the front end of the magnet. The support block and the electromagnet are both fixed to the rear side of the support plate, and the support link passes through the support plate.

[0010] Preferably, the cylinder main body includes a cylinder body, a piston plate, a piston rod, air port 1, air port 2, a reversing valve and a solenoid valve. A piston plate is arranged inside the cylinder body. The left end of the piston rod extends into the cylinder body and is fixedly connected to the piston plate. Air port 1 and air port 2 are provided on the left and right sides of the outer wall of the cylinder body. Air port 1, air port 2 and the solenoid valve are connected to the reversing valve through a conduit, and the other end of the solenoid valve is connected to the air compressor through a conduit. The right end of the piston rod is hinged to the door leaf through a hinge 1, and the left end of the cylinder body is hinged to the supporting connecting rod through a hinge 2.

[0011] Preferably, the left door leaf assembly and the right door leaf assembly have the same structure, and the left door leaf assembly and the right door leaf assembly are symmetrically arranged.

[0012] Preferably, the supporting connecting rod is in the shape of a letter "Q" when viewed from above, and the magnetic block at the left end of the supporting connecting rod is in contact with the solenoid valve.

[0013] Preferably, the cylinder body is arranged on the outside of the fence.

[0014] Preferably, the controller is electrically connected to the human body proximity sensor, the electromagnet, the reversing valve and the solenoid valve.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a safety fence door for a slag scoop machine, which has the following beneficial effects:

[0017] The slag scoop machine safety fence door is provided with quick-opening doors on both sides of the fence far from the entrance and exit door, and the quick-opening doors are controlled to open and close by a cylinder assembly. When a person approaches the quick-opening door, the human body proximity sensor is used to sense and control the quick-opening door to open, so that the internal person can pass through, which is beneficial for the quick evacuation of the people on both sides far from the entrance and exit door. A supporting connecting rod is provided at the supporting end of the cylinder body, and the supporting connecting rod is fixed by electromagnet adsorption. In the case of power failure, the electromagnet disconnects the adsorption of the supporting connecting rod, so that the person can push the door leaf of the quick-opening door to open the door leaf, thereby avoiding the situation in which the cylinder body cannot be controlled to extend and retract in the case of power failure, resulting in the inability of the person to evacuate from the quick-opening door. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a top view of the quick-opening door structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the left door leaf assembly of the utility model;

[0021] Figure 4 This is a top view of the cylinder assembly structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the cylinder body of the utility model.

[0023] In the figure: slag pit-1, fence-2, access door-3, quick opening door-4, left door leaf assembly-41, right door leaf assembly-42, air compressor-43, door leaf-411, door leaf shaft-412, door frame-413, cylinder assembly-414, support plate-415, human proximity sensor-416, controller-417, cylinder body-4141, hinge one-4142, hinge two-4143, support connecting rod-4144, fixed shaft-4145, support block-4146, magnetic block-4147, electromagnet-4148, cylinder body-a1, piston plate-a2, piston rod-a3, air inlet one-a4, air inlet two-a5, reversing valve-a6, solenoid valve-a7. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 A safety fence door for a slag scooping machine comprises a slag pit 1 and a quick-opening door 4. A fence 2 is arranged outside the slag pit 1, and an inlet and outlet door 3 is arranged on the left and right sides of the fence 2. Quick-opening doors 4 are arranged on the front and rear sides of the fence 2. The quick-opening door 4 comprises a left door leaf assembly 41, a right door leaf assembly 42 and an air compressor 43. The left side of the left door leaf assembly 41 and the right side of the right door leaf assembly 42 are respectively connected to the fence 2. The left door leaf assembly 41 and the right door leaf assembly 42 have the same structure, and the left door leaf assembly 41 and the right door leaf assembly 42 are symmetrically arranged. Two door leaves are arranged to facilitate rapid evacuation of personnel.

[0026] The left door leaf assembly 41 includes a door leaf 411, a door leaf shaft 412, a door frame 413, a cylinder assembly 414, a support plate 415, a human proximity sensor 416 and a controller 417. The left side of the door leaf 411 is rotatably connected to the door frame 413 via the door leaf shaft 412, one end of the cylinder assembly 414 is connected to the door leaf 411, and the other end of the cylinder assembly 414 is connected to the support plate 415, the support plate 415 is fixed to the left side of the door frame 413, the human proximity sensor 416 and the controller 417 are installed on the rear side of the support plate 415, and the left end of the support plate 415 is fixedly connected to the fence 2.

[0027] See also Figure 4-5 The cylinder assembly 414 includes a cylinder body 4141, a hinge 1 4142, a hinge 2 4143, a support link 4144, a fixed shaft 4145, a support block 4146, a magnetic block 4147 and an electromagnet 4148. The right end of the cylinder body 4141 is hinged to the door leaf 411 through the hinge 1 4142, and the left end of the cylinder body 4141 is hinged to the support link 4144 through the hinge 2 4143. The middle part of the support link 4144 rotates along the fixed shaft 4145, and the fixed shaft 4145 is fixed on the support block 4146. A magnetic block 4147 is fixed to the front side of the left end of the support link 4144, and an electromagnet 4148 is arranged at the front end of the magnetic block 4147. The support block 4146 and the electromagnet 4148 are both fixed to the rear side of the support plate 415, and the support link 4144 passes through the support plate 415.

[0028] The cylinder body 4141 includes a cylinder body a1, a piston plate a2, a piston rod a3, an air inlet a4, an air inlet a5, a reversing valve a6 and a solenoid valve a7. The cylinder body a1 is provided with a piston plate a2. The left end of the piston rod a3 extends into the cylinder body a1 and is fixedly connected to the piston plate a2. The left and right sides of the outer wall of the cylinder body a1 are provided with an air inlet a4 and an air inlet a5. The air inlet a4, the air inlet a5 and the solenoid valve a7 are all connected to the reversing valve a6 through a conduit, and the other end of the solenoid valve a7 is connected to the air compressor 43 through a conduit. The right end of the piston rod a3 is hinged to the door leaf 411 through a hinge 1 4142, and the left end of the cylinder body a1 is hinged to the supporting connecting rod 4144 through a hinge 2 4143.

[0029] The supporting connecting rod 4144 is shaped like a figure 7 when viewed from above, and the magnetic block 4147 at the left end of the supporting connecting rod 4144 fits with the solenoid valve a7, so that the solenoid valve a7 is energized to generate magnetism to adsorb the magnetic block 4147. The cylinder body 4141 is set on the outside of the fence 2, which is convenient for inspecting and repairing the cylinder body 4141 outside the fence 2. The controller 417 is electrically connected to the human body proximity sensor 416, the electromagnet 4148, the reversing valve a6 and the solenoid valve a7, and the human body proximity sensor 416, the electromagnet 4148, the reversing valve a6 and the solenoid valve a7 are controlled by the controller 417.

[0030] In summary, when the slag pit is in use, when an abnormality occurs, a person in the fence 2 near the entrance door 3 evacuates from the fence 2 through the entrance door 3, and a person in the fence 2 near the quick-opening door 4 evacuates from the fence 2 through the quick-opening door 4. When the person evacuates through the quick-opening door 4, the human proximity sensor 416 senses that the person is close to the quick-opening door 4. When the person approaches, the solenoid valve a7 is controlled to open, and at this time, the electromagnet 4148 adsorbs the magnetic block 4147, thereby fixing the supporting connecting rod 4144, and the reversing valve a6 turns the air compressor 4 3 is connected with the air inlet a5 on the right side of the cylinder a1, the air compressor 43 takes in air from the right side of the cylinder a1 and pushes the piston plate a2 to move leftward, the air on the left side of the cylinder a1 is discharged from the air inlet a4, the piston plate a2 moves leftward and drives the piston rod a3 to contract, the right end of the piston rod a3 pulls the door leaf 411 to rotate outward along the door leaf shaft 412 through the hinge 1 4142, and the left end of the cylinder a1 rotates outward through the hinge 2 4143, so that the door leaf 411 is opened outward, allowing people inside to pass through;

[0031] After the personnel pass through, the air inlet a4 on the left side of the cylinder a1 is connected to the air compressor 45 by controlling the reversing valve a6, and air is introduced into the left side of the cylinder a1, so that the piston rod a3 is extended, and the door leaf 411 is driven to close;

[0032] When the power is off, the electromagnet 4148 is not energized, and thus the magnetic block 4147 is not attracted. When a person approaches the quick-opening door 4, the door leaf 411 of the quick-opening door 4 cannot be opened automatically. The person pushes the door leaf 411 outward, and the door leaf 411 rotates outward along the door leaf shaft 412, and the door leaf 411 pushes the cylinder body 4141 to move left. The left end of the cylinder body 4141 pushes the supporting connecting rod 4144 to rotate along the fixed rotating shaft 4145, and the two ends of the cylinder body 4141 are respectively rotated by hinge 1 4142 and hinge 2 4143. Since the magnetic block 4147 is not fixed, the supporting connecting rod 4144 can be rotated, so that the person can manually push the door leaf 411 to rotate outward, thereby avoiding the inability to control the extension and retraction of the cylinder body 4141 in the case of a power outage, which makes it impossible for the person to evacuate from the quick-opening door 4.

[0033] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0034] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety fence door for a slag dredger, comprising a slag pit (1), a fence (2) being arranged outside the slag pit (1), and entry and exit doors (3) being arranged on the left and right sides of the fence (2); Features: It also comprises a quick-opening door (4), wherein the quick-opening door (4) is arranged on the front and rear sides of the fence (2), the quick-opening door (4) comprises a left door leaf assembly (41), a right door leaf assembly (42) and an air compressor (43), and the left side of the left door leaf assembly (41) and the right side of the right door leaf assembly (42) are respectively connected to the fence (2); The left door leaf assembly (41) comprises a door leaf (411), a door leaf rotating shaft (412), a door frame (413), a cylinder assembly (414), a support plate (415), a human body proximity sensor (416) and a controller (417); the left side of the door leaf (411) is rotatably connected to the door frame (413) via the door leaf rotating shaft (412); one end of the cylinder assembly (414) is connected to the door leaf (411), and the other end of the cylinder assembly (414) is connected to the support plate (415); the support plate (415) is fixed to the left side of the door frame (413); the human body proximity sensor (416) and the controller (417) are installed on the rear side of the support plate (415); and the left end of the support plate (415) is fixedly connected to the fence (2).

2. A slag scoop safety fence door according to claim 1, characterized in that: The cylinder assembly (414) comprises a cylinder body (4141), a hinge part 1 (4142), a hinge part 2 (4143), a supporting connecting rod (4144), a fixed rotating shaft (4145), a supporting block (4146), a magnetic block (4147) and an electromagnet (4148). The right end of the cylinder body (4141) is hingedly connected to the door leaf (411) via the hinge part 1 (4142), and the left end of the cylinder body (4141) is hingedly connected to the supporting connecting rod (4144) via the hinge part 2 (4143). 4) are hinged to each other, the middle part of the support link (4144) rotates along the fixed rotation shaft (4145), the fixed rotation shaft (4145) is fixed on the support block (4146), a magnetic block (4147) is fixed on the front side of the left end of the support link (4144), an electromagnet (4148) is arranged at the front end of the magnetic block (4147), the support block (4146) and the electromagnet (4148) are both fixed on the rear side of the support plate (415), and the support link (4144) passes through the support plate (415).

3. A slag scoop safety fence door according to claim 2, characterized in that: The cylinder body (4141) comprises a cylinder body (a1), a piston plate (a2), a piston rod (a3), an air inlet 1 (a4), an air inlet 2 (a5), a reversing valve (a6) and a solenoid valve (a7). The cylinder body (a1) is provided with a piston plate (a2). The left end of the piston rod (a3) ​​extends into the cylinder body (a1) and is fixedly connected to the piston plate (a2). The outer wall of the cylinder body (a1) is provided with an air inlet 1 (a4) on both sides. ) and air inlet 2 (a5), air inlet 1 (a4), air inlet 2 (a5) and solenoid valve (a7) are all connected to the reversing valve (a6) through a conduit, and the other end of the solenoid valve (a7) is connected to the air compressor (43) through a conduit, the right end of the piston rod (a3) ​​is hinged to the door leaf (411) through a hinge 1 (4142), and the left end of the cylinder body (a1) is hinged to the supporting connecting rod (4144) through a hinge 2 (4143).

4. The safety fence door of a slag dredger according to claim 1, characterized in that: The left door leaf assembly (41) and the right door leaf assembly (42) have the same structure, and the left door leaf assembly (41) and the right door leaf assembly (42) are symmetrically arranged.

5. The safety fence door of a slag scoop machine according to claim 2, characterized in that: The supporting connecting rod (4144) is in the shape of a letter "7" when viewed from above, and the magnetic block (4147) at the left end of the supporting connecting rod (4144) is in contact with the solenoid valve (a7).

6. A slag scoop safety fence door according to claim 2, characterized in that: The cylinder body (4141) is arranged on the outside of the fence (2).

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