A safety locking system for hazardous materials production sites

Abstract

The utility model discloses a safety locking system for a dangerous goods production site, which belongs to the field of access control management, and comprises a lock body, a lock shell arranged inside a door frame, a battery and a controller arranged inside the lock shell and fixedly connected to the inner wall of the lock shell, and is characterized in that an electromagnet part and a limit switch are also arranged inside the lock shell, one end of the lock shell is open in the horizontal direction, the electromagnet part is fixedly connected to the inner wall of the lock shell, the output end of the electromagnet part is located above the open end of the lock shell and corresponds to the lock body, and the electromagnet part is respectively connected to the battery and the controller; the limit switch is arranged below the electromagnet part and close to one end of the lock shell opening, the limit switch is connected to the controller, and a hydraulic door closer is arranged at the top of the connection between the door panel and the door frame; the utility model enables the entry and exit of personnel to be effectively controlled, avoids non-staff members from contacting the dangerous goods production site, and reduces safety hazards.

Description

Technical Field

[0001] The utility model belongs to the field of door access management, and in particular relates to a safety locking system for dangerous goods production sites. Background Art

[0002] During construction and production, entry and exit of hazardous materials production sites must be strictly controlled. Existing measures mainly rely on management systems and full-time management personnel for control, and the management efficiency is low. In order to prevent non-staff from contacting hazardous materials production sites and avoid safety hazards caused by unsafe human behavior, a safe intelligent self-locking device is needed to strictly control the entry of personnel and ensure site safety. Utility Model Content

[0003] The purpose of the utility model is to provide a safety locking system for dangerous goods production sites, aiming to solve the problem of low safety management efficiency existing in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a safety locking system for a dangerous goods production site, comprising a central control room, a door panel, a door frame, a lock body arranged between the door panel and the door frame and cooperating with each other, a lock shell arranged inside the door frame, a battery and a controller arranged inside the lock shell and fixedly connected to the inner wall of the lock shell, the central control room is connected to the controller, and is characterized in that: an electromagnet and a limit switch are also arranged inside the lock shell, one end of the lock shell is open in the horizontal direction, the electromagnet is fixedly connected to the inner wall of the lock shell, the output end of the electromagnet extends obliquely upward outside the opening end and corresponds to the lock body, the electromagnet is connected to the battery and the controller respectively; the limit switch is arranged below the electromagnet and partially protrudes outside the opening end of the lock shell, the limit switch is connected to the controller, and a hydraulic door closer is arranged at the top of the connection between the door panel and the door frame.

[0005] Furthermore, the lock body includes a lock bracket, a lock and a U-shaped hook arranged on the door panel and corresponding to the bottom of the lock bracket, the lock bracket is arranged at one end of the lock shell opening, the lock is a right-angled triangle structure, the lock is formed with a right-angled long edge, a right-angled short edge and a hypotenuse, a block is provided on the upper surface of the right-angled long edge of the lock close to the right angle, the side away from the right angle is connected to the lock bracket through a pin shaft and the lock can be rotatably matched with the lock bracket around the pin shaft, the block corresponds to the output end of the electromagnet part, and the U-shaped hook and the limit switch are located on the same horizontal line.

[0006] Furthermore, the locking bracket includes a U-shaped connecting rod and a cross bar arranged below the U-shaped connecting rod.

[0007] Furthermore, the beveled edge of the lock buckle has an arc transition.

[0008] The utility model has the following beneficial effects:

[0009] The utility model provides a safety locking system for hazardous goods production sites. The central control room opens the electromagnet part through an unlocking button, pushes the card block to unlock, and the staff pushes the door panel to open the door to enter the hazardous goods production site. The hydraulic door closer automatically closes the door panel. When the staff comes out, the card block can be lifted to unlock. When the door is closed, the U-shaped hook touches the limit switch to trigger a locking signal. The unlocking button is disconnected and the signal is transmitted to the central control room at the same time. The entry and exit time and images of the personnel are archived, so that the entry and exit of the personnel are effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model when locked;

[0011] Figure 2 It is a schematic diagram of the overall structure of the utility model when unlocking;

[0012] Figure 3 It is a schematic diagram of the lateral structure of the lock body in the utility model;

[0013] Figure 4 It is a structural schematic diagram of the hydraulic door closer in the utility model;

[0014] Figure 5 This is the electrical structure control relationship diagram of the utility model.

[0015] In the figure: 1. lock housing; 2. battery; 3. controller; 4. electromagnet; 5. limit switch; 6. hydraulic door closer; 7. lock bracket; 8. lock; 9. U-shaped hook; 10. block; 11. pin. DETAILED DESCRIPTION

[0016] like Figures 1 to 5As shown, a safety locking system for a hazardous goods production site includes a central control room, a door panel, a door frame, a lock body arranged between the door panel and the door frame and cooperating with each other, a lock shell 1 arranged inside the door frame, a battery 2 and a controller 3 arranged inside the lock shell 1 and fixedly connected to the inner wall of the lock shell 1, the central control room is connected to the controller 3, and an electromagnet 4 and a limit switch 5 are also arranged inside the lock shell 1. One end of the lock shell 1 is open in the horizontal direction, and the controller can be a PLC controller or a single-chip microcomputer. A lock bracket 7 is arranged at one end of the opening of the lock shell 1, including a U-shaped connecting rod and a cross bar arranged below the U-shaped connecting rod. The lock buckle 8 is a right-angled triangle structure, and the lock buckle 8 is formed including a right-angled long side, a right-angled short side and a hypotenuse, and the right-angled long side of the lock buckle 8 is close to the right-angled side A card block 10 is provided on the upper surface, which can play a limiting role so that the long right-angle edge of the lock buckle 8 is always horizontal and clamped by the lock buckle bracket 7; the side away from the right angle is connected to the lock buckle bracket 7 through a pin shaft 11, and the lock buckle 8 can rotate around the pin shaft 11 and cooperate with the lock buckle bracket 7. The electromagnet part 4 is connected to the controller 3 and the battery 2 respectively. The controller 3 sends an instruction to the electromagnet part 4. The output end of the electromagnet part 4 passes through the outlet end of the lock shell 1 and corresponds to the card block 10. When the electromagnet part 4 receives the unlocking instruction, it is energized. After power is turned on, the electromagnet part 4 generates magnetic force, which pushes the card block 10 to rotate clockwise around the pin shaft 11 to achieve the purpose of unlocking. After power is off, the lock buckle 8 rotates counterclockwise around the pin shaft 11 under the action of gravity and falls back to its original position.

[0017] The limit switch 5 is arranged below the electromagnet part 4 and close to the opening end of the lock shell 1. The limit switch 5 and the U-shaped hook 9 are located on the same horizontal line and are connected to the controller 3. When the door is closed, the tail of the U-shaped hook 9 touches the limit switch 5, and the controller 3 can receive the locking signal and send it to the electromagnet part 4; the beveled arc transition of the lock buckle 8 will not be stuck with the U-shaped hook 9.

[0018] The battery 2 , the controller 3 , the electromagnet 4 and the limit switch 5 are located inside the lock housing 1 and are fixedly connected to the inner wall of the lock housing 1 . The battery 2 provides electrical energy to the electromagnet 4 and the controller 3 .

[0019] The specific operation process of the utility model is as follows:

[0020] When personnel need to enter the construction site, they contact the central control room. The staff confirms the personnel's identity information through the camera and turns on the unlock button. The electromagnet 4 is energized to generate magnetic force to push the lock 8 to unlock. After the personnel enter, the hydraulic door closer 6 automatically closes the door. When the door is closed, the tail of the U-shaped hook 9 touches the limit switch 5. The controller 3 receives the lock signal, disconnects the unlock button, and the lock body automatically locks. When leaving the hazardous goods production site, the personnel can push the card block 10 to push the door by themselves to leave. In case of emergency, they can escape from the scene in time. The central control room receives the lock signal and can automatically archive the image content and time.

Claims

1. A safety locking system for a hazardous goods production site, comprising a central control room, a door panel, a door frame, a lock body arranged between the door panel and the door frame and cooperating with each other, a lock shell (1) arranged inside the door frame, a battery (2) arranged inside the lock shell (1) and fixedly connected to the inner wall of the lock shell (1), and a controller (3), wherein the central control room is connected to the controller (3), and is characterized in that: An electromagnet (4) and a limit switch (5) are also provided inside the lock housing (1). One end of the lock housing (1) is open in the horizontal direction. The electromagnet (4) is fixedly connected to the inner wall of the lock housing (1). The output end of the electromagnet (4) extends obliquely upward outside the open end and corresponds to the lock body. The electromagnet (4) is connected to the battery (2) and the controller (3) respectively. The limit switch (5) is provided below the electromagnet (4) and partially protrudes outside the open end of the lock housing (1). The limit switch (5) is connected to the controller (3). A hydraulic door closer (6) is provided at the top of the connection between the door panel and the door frame.

2. A safety locking system for dangerous goods production sites according to claim 1, characterized in that: The lock body comprises a lock bracket (7), a lock (8) and a U-shaped hanging buckle (9) arranged on the door panel and corresponding to the lower side of the lock bracket (7); the lock bracket (7) is arranged at one end of the opening of the lock shell (1); the lock buckle (8) is a right-angled triangle structure; the lock buckle (8) is formed with a right-angled long side, a right-angled short side and a hypotenuse; a clamping block (10) is provided on the upper surface of the right-angled long side of the lock buckle (8) close to the right angle; the side away from the right angle is connected to the lock bracket (7) through a pin shaft (11); and the lock buckle (8) can rotate around the pin shaft (11) and cooperate with the lock bracket (7); the clamping block (10) corresponds to the output end of the electromagnet member (4); and the U-shaped hanging buckle (9) and the limit switch (5) are located on the same horizontal line.

3. A safety locking system for dangerous goods production sites according to claim 2, characterized in that: The locking bracket (7) comprises a U-shaped connecting rod and a cross bar arranged below the U-shaped connecting rod.

4. A safety locking system for dangerous goods production sites according to claim 2, characterized in that: The beveled edge of the lock buckle (8) has an arc transition.

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