A quick release device for emergency escape of a welding protection door

Abstract

The utility model relates to the technical field of unlocking, and disclose a kind of welding protective door emergency escape quick unlocking device, the welding protective door cannot be quickly unlocked under emergency, there is serious safety problem, it includes door frame, the inside of the door frame is connected with magnetic attraction plate, the utility model is set through unlocking assembly, draw out support plate, under the gravity of counterweight block itself weight and gravity, quickly drop down, make steel wire drive cutter move downward, cut wire, make it timely power off, while guide plate drives fixed plate to move downward, move under the elastic potential of spring, moving plate drives top rod to impact magnetic attraction plate rapidly, the action of force is mutual, the force of impact, make protective door body open rapidly, avoid the phenomenon of being trapped due to power failure not in time, to make door frame and protective door body open quickly, ensure personnel escape safety.

Description

Technical Field

[0001] This utility model belongs to the field of unlocking technology, specifically a rapid unlocking device for emergency escape of welded protective doors. Background Technology

[0002] In welding operations, welding safety doors are used to isolate the welding area and prevent injury from welding spatter, arc light, and harmful gases. However, in emergencies such as fires, equipment malfunctions, or sudden illnesses, the rapid opening of these doors is crucial. Most safety doors use ordinary magnetic locks, which require power disconnection for rapid escape in an emergency. However, in a panic, people may be unable to quickly disconnect the power and unlock the door, leading to entrapment and a serious safety hazard. Such welding safety doors cannot be quickly unlocked in emergencies, posing a significant safety risk. Utility Model Content

[0003] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model provides an emergency escape quick unlocking device for welding protective doors, which effectively solves the problem that welding protective doors cannot be quickly unlocked in emergency situations, posing a serious safety hazard.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an emergency escape quick unlocking device for a welded protective door, comprising a door frame, a magnetic suction plate connected to the inner side of the door frame, a protective door body rotatably connected to both ends of the inner side of the door frame, a support plate inserted into one end of the protective door body, an electromagnetic plate embedded in one end of the protective door body, the electromagnetic plate being attracted to the magnetic suction plate, an electric wire connected to one end of the electromagnetic plate, and openings around one side of one end of the electromagnetic plate, and an unlocking component connected to one side of the inside of the protective door body;

[0005] The unlocking component includes a fixed frame and a top-opening unit installed inside one side of the protective door body. The wire is located inside the fixed frame. A pressure plate is slidably connected to the inside of the fixed frame. A cutter is connected to the lower end of the pressure plate. Slide plates are connected through both sides of one end of the pressure plate. Both ends of the slide plates are connected to the inner walls of the fixed frame.

[0006] Optionally, steel wires are connected to both sides of the fixing frame, and the lower end of the steel wires extends through to the bottom of the fixing frame and is connected to a counterweight.

[0007] Optionally, the counterweight is located at the upper end of the support plate, and a guide plate is connected to one side of the upper end of the counterweight.

[0008] Optionally, the top-opening unit includes a support plate installed inside one side of the protective door body, with a rotating shaft connected through one end of the support plate, a winding wheel sleeved on the outside of the rotating shaft, and a pull rope connected to the outside of the winding wheel.

[0009] Optionally, a pulley is fitted around the outside of the pull rope, one end of which is connected to one side of the inner wall of the protective door body, and the pull rope slides in contact with the pulley.

[0010] Optionally, one end of the pull rope is connected to a movable plate, and top rods are connected to all four sides of one end of the movable plate. Round rods are connected through both sides of one end of the movable plate, and both ends of the round rods are connected to the inner walls of the protective door body.

[0011] Optionally, a spring is fitted around the outside of the round rod, with one end of the spring connected to one side of the movable plate and the other end of the spring connected to one side of the protective door body.

[0012] Optionally, one end of the rotating shaft is connected to a gear, an arc-shaped plate is snapped onto the outside of the gear, a fixing plate is connected to the lower end of the arc-shaped plate, a magnetic block is connected to one side of the upper end of the fixing plate, and limit rods are connected through both sides of the upper end of the fixing plate. The lower end of the limit rod is connected to one side of the inner wall of the protective door body, and the other end of the limit rod is connected to a limit plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes an unlocking component to pull out the support plate, which then falls rapidly downwards under the weight of the counterweight and gravity. This causes the steel wire to drive the cutter downwards, cutting the wire and cutting off the power in time. Simultaneously, the guide plate drives the fixed plate downwards, moving under the elastic potential energy of the spring. The moving plate then drives the top rod to quickly strike the magnetic plate. Since forces are reciprocal, the impact generates a force that causes the protective door to open rapidly, preventing people from being trapped due to delayed power cut-off. This allows the door frame and the protective door to open quickly, ensuring the safety of personnel during escape. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of an emergency escape and quick unlocking device for a welded protective door according to the present invention;

[0018] Figure 2 This is a schematic diagram of the connection structure of the support plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the opening structure of the port of this utility model;

[0020] Figure 4 This is a schematic diagram of the unlocking component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the cutter of this utility model;

[0022] Figure 6 This is a schematic diagram of the top-opening unit of this utility model;

[0023] Figure 7 This is a schematic diagram of the connection structure of the limiting plate of this utility model.

[0024] In the diagram: 1. Door frame; 2. Magnetic plate; 3. Protective door body; 4. Support plate; 5. Electromagnetic plate; 6. Wire; 7. Through-hole; 9. Unlocking component; 91. Fixing frame; 92. Top opening unit; 93. Pressure plate; 95. Cutter; 96. Slide plate; 97. Steel wire; 98. Counterweight; 99. Guide plate; 901. Support plate; 902. Rotating shaft; 903. Rewinding wheel; 905. Pull rope; 906. Pulley; 907. Moving plate; 908. Top rod; 909. Round rod; 9010. Spring; 9011. Gear; 9012. Arc plate; 9013. Fixing plate; 9014. Magnetic block; 9015. Limiting rod; 9016. Limiting plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0028] This application discloses an emergency escape and rapid unlocking device for welding protective doors. (Refer to...) Figures 1-3The device includes a door frame 1, with a magnetic plate 2 connected to the inside of the door frame 1. Both ends of the inside of the door frame 1 are rotatably connected to a protective door body 3. A support plate 4 is inserted into one end of the protective door body 3. The support plate 4 supports a counterweight 98. Pulling out the support plate 4 causes the counterweight 98 to move downward under the action of gravity. An electromagnetic plate 5 is embedded in one end of the protective door body 3. The electromagnetic plate 5 is attracted to the magnetic plate 2. When the electromagnetic plate 5 is energized, it is attracted to the magnetic plate 2. The protective door body 3 is fixedly connected to the door frame 1. An electric wire 6 is connected to one end of the electromagnetic plate 5. The electric wire 6 is connected to an external power source. Openings 7 are provided around one side of one end of the electromagnetic plate 5. The openings 7 facilitate the push-out of the top rod 908. An unlocking component 9 is connected to one side inside the protective door body 3.

[0029] Reference Figure 4 and Figure 5 The unlocking component 9 includes a fixing frame 91 and a top-opening unit 92 installed inside one side of the protective door body 3. The wire 6 is located inside the fixing frame 91. A pressure plate 93 is slidably connected to the inside of the fixing frame 91. The pressure plate 93 moves downward under the action of the steel wire 97. At the same time, under the weight of the counterweight 98, pressure is applied to the cutter 95, causing the cutter 95 to cut the wire 6 and cut off its power. The cutter 95 is connected to the lower end of the pressure plate 93. Slide plates 96 are connected through both sides of one end of the pressure plate 93. The pressure plate 93 slides along the outside of the slide plate 96. Under the sliding of the slide plate 96, the pressure plate 93 moves in a straight line. Both ends of the slide plate 96 are connected to the inner walls of the fixing frame 91. Steel wires 97 are connected to both sides of the fixing frame 91.

[0030] The lower end of the steel wire 97 extends through to the bottom of the fixed frame 91 and is connected to a counterweight 98. When the counterweight 98 loses the support of the support plate 4, it falls rapidly downward under the action of gravity, which in turn drives the steel wire 97 and the guide plate to move downward. The counterweight 98 is located at the upper end of the support plate 4. A guide plate 99 is connected to one side of the upper end of the counterweight 98. When the cutter 95 cuts off the power to the wire 6, the guide plate 99 contacts the fixed plate 9013, and the guide plate 99 drives the fixed plate 9013 to move downward.

[0031] Reference Figure 6 , Figure 7 The top-opening unit 92 includes a support plate 901 installed inside one side of the protective door body 3. The support plate 901 rotatably supports the rotating shaft 902. One end of the support plate 901 is connected to the rotating shaft 902. A winding wheel 903 is sleeved on the outside of the rotating shaft 902. The winding wheel 903 is wound by the pull rope 905, so that the pull rope 905 is wrapped around the outside of the winding wheel 903. The pull rope 905 is connected to the outside of the winding wheel 903. A pulley 906 is sleeved on the outside of the pull rope 905. The pulley 906 guides the movement of the pull rope 905, so that the pull rope 905 pulls the moving plate 907 to move. One end of the pulley 906 is connected to one side of the inner wall of the protective door body 3. The pull rope 905 slides in contact with the pulley 906. One end of the pull rope 905 is connected to the moving plate 907.

[0032] The movable plate 907 is connected to top rods 908 around one end. Under the push of the movable plate 907, the top rods 908 quickly strike the magnetic plate 2. The force generated by the impact causes the protective door body 3 to open quickly. Round rods 909 are connected through both sides of one end of the movable plate 907. Both ends of the round rods 909 are connected to the inner walls of the protective door body 3. Springs 9010 are sleeved on the outside of the round rods 909. The movable plate 907 compresses the springs 9010, and the springs 9010 are in a compressed state, storing elastic potential energy. When the external force on the movable plate 907 is lost, the springs 9010 quickly push the movable plate 907 to move. One end of the springs 9010 is connected to one side of the movable plate 907, and the other end of the springs 9010 is connected to one side of the protective door body 3.

[0033] And, such as Figure 7 As shown, a gear 9011 is connected to one end of the rotating shaft 902. An arc-shaped plate 9012 is engaged with the outside of the gear 9011. A rack is located on the inner side of the arc-shaped plate 9012, inside the outer tooth groove of the gear 9011. The gear 9011 engages with the arc-shaped plate 9012 to fix the winding wheel 903, ensuring that the moving plate 907 is fixed in the normal state. A fixing plate 9013 is connected to the lower end of the arc-shaped plate 9012, and a magnetic block 9014 is connected to one side of the upper end of the fixing plate 9013. The magnetic block 9014 is attracted to the limiting plate 9016 to fix the arc plate 9012, preventing the arc plate 9012 from moving downward under the action of gravity and affecting the fixing effect. Limiting rods 9015 are connected through both sides of the upper end of the fixing plate 9013. The limiting rods 9015 limit the fixing plate 9013 to ensure that the fixing plate 9013 moves up and down in a straight line. The lower end of the limiting rod 9015 is connected to one side of the inner wall of the protective door body 3, and the other end of the limiting rod 9015 is connected to the limiting plate 9016.

[0034] The implementation principle of the emergency escape and rapid unlocking device for a welded protective door according to this application embodiment is as follows: In the initial state of use, the arc plate 9012 is fixed to the gear 9011, the pull rope 905 is wound around the outside of the winding wheel 903, and the spring 9010 is in a compressed state. When it is necessary to quickly open the door frame 1 and the protective door body 3, the support plate 4 is pulled out and falls rapidly downwards under the weight of the counterweight 98 and gravity, causing the steel wire 97 to quickly drive the pressure plate 93 to move downwards. The pressure plate 93 drives the cutter 95 to move downwards, and the cutter 95 cuts the wire 6 to cut off the power in time. At the same time, the guide plate 99 contacts the fixed plate 9013, and the guide plate 99 drives the fixed plate 9013 to move downward, so that the arc plate 9012 is no longer fixedly connected to the gear 9011. At this time, the moving plate 907, which loses external force, moves under the elastic potential energy of the spring 9010. The top rod 908, pushed by the moving plate 907, quickly hits the magnetic suction plate 2. The forces are mutual, and the force generated by the impact makes the protective door body 3 open quickly, avoiding the phenomenon of people being trapped due to the failure to cut off the power in time. Thus, the door frame 1 and the protective door body 3 open quickly, ensuring the safety of personnel escape.

[0035] All electrical components mentioned in this application are connected to an external power source and control switch during use.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick release device for emergency escape of a welding protection door, comprising a door frame (1), characterized in that: A magnetic suction plate (2) is connected to the inside of the door frame (1). A protective door body (3) is rotatably connected to both ends of the inside of the door frame (1). A support plate (4) is inserted into one end of the protective door body (3). An electromagnetic plate (5) is embedded in one end of the protective door body (3). The electromagnetic plate (5) is attracted to the magnetic suction plate (2). An electric wire (6) is connected to one end of the electromagnetic plate (5). An opening (7) is opened around one side of one end of the electromagnetic plate (5). An unlocking component (9) is connected to one side inside the protective door body (3). The unlocking component (9) includes a fixed frame (91) and a top-opening unit (92) installed inside one side of the protective door body (3). The wire (6) is located inside the fixed frame (91). A pressure plate (93) is slidably connected to the inside of the fixed frame (91). A cutter (95) is connected to the lower end of the pressure plate (93). A sliding plate (96) is connected through both sides of one end of the pressure plate (93). Both ends of the sliding plate (96) are connected to both sides of the inner wall of the fixed frame (91).

2. A quick release device for emergency escape of a welding protection door according to claim 1, characterized in that: The fixing frame (91) is connected to steel wires (97) on both sides, and the lower end of the steel wires (97) extends through to the bottom of the fixing frame (91) and is connected to a counterweight (98).

3. A quick release device for emergency escape of a welding protection door according to claim 2, characterized in that: The counterweight (98) is located at the upper end of the support plate (4), and a guide plate (99) is connected to one side of the upper end of the counterweight (98).

4. A quick release device for emergency escape of a welding protection door according to claim 1, characterized in that: The top-opening unit (92) includes a support plate (901) installed inside one side of the protective door body (3). One end of the support plate (901) is connected to a rotating shaft (902). A winding wheel (903) is sleeved on the outside of the rotating shaft (902). A pull rope (905) is connected to the outside of the winding wheel (903).

5. A quick release device for emergency escape of a welding protection door according to claim 4, characterized in that: The pull rope (905) is fitted with a pulley (906) on the outside. One end of the pulley (906) is connected to one side of the inner wall of the protective door body (3). The pull rope (905) and the pulley (906) slide in contact.

6. A quick release device for emergency escape of a welding protection door according to claim 4, characterized in that: One end of the pull rope (905) is connected to a movable plate (907), and a top rod (908) is connected around one side of the movable plate (907). A round rod (909) is connected through both sides of one side of the movable plate (907), and both ends of the round rod (909) are connected to the inner walls of the protective door body (3).

7. The welding protective door emergency escape quick unlocking device according to claim 6, characterized in that: A spring (9010) is sleeved on the outside of the round rod (909). One end of the spring (9010) is connected to one side of the moving plate (907), and the other end of the spring (9010) is connected to one side of the protective door body (3).

8. The welding protective door emergency escape quick unlocking device according to claim 4, characterized in that: One end of the rotating shaft (902) is connected to a gear (9011), and an arc plate (9012) is snapped onto the outside of the gear (9011). A fixing plate (9013) is connected to the lower end of the arc plate (9012). A magnetic block (9014) is connected to one side of the upper end of the fixing plate (9013). Limiting rods (9015) are connected through both sides of the upper end of the fixing plate (9013). The lower end of the limiting rod (9015) is connected to one side of the inner wall of the protective door body (3), and the other end of the limiting rod (9015) is connected to a limiting plate (9016).

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