Locking device for personnel intrusion in mine dangerous area

Abstract

The utility model discloses a mine dangerous area personnel intruding locking device which comprises a double-door frame and safety door leaves installed on the two sides of the surface of the double-door frame in a hinged mode through hinges, protruding plates are fixed to the two sides of the surface of the double-door frame, a grating is installed on the outer wall of one side of one protruding plate, and the other side of the other protruding plate is provided with a locking device. A bottom frame is installed on the bottom edge of the double-door frame, two symmetrical base plates are installed on the back face of the bottom frame, and connecting rod type locking structures used for preventing the safety door leaves from being opened are arranged at the corners of the ends, away from each other, of the two base plates. According to the safety door, the risk that unauthorized personnel forcibly intrude or mistakenly enter is reduced, the locking and unlocking operation of the safety door leaf is more rapid and flexible due to the connecting rod type locking structure and the connecting rod swinging and pushing structure, and the safety door can be used in cooperation with an existing door leaf in the complex environment such as a mine, work is stable and reliable, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of mine area isolation warning, in particular to a locking device for personnel intrusion into a dangerous area of ​​a mine. Background Art

[0002] The alarm and locking device for personnel intrusion into dangerous areas of mines plays a vital role in mine safety management. Its main function is to prevent and control personnel from entering dangerous areas of mines without permission. These areas usually contain potential safety hazards, such as equipment operation areas, high-voltage areas, or areas where harmful gases may exist. By installing and using the alarm and locking device, when someone illegally or accidentally enters these areas, the device will immediately activate the alarm and alert on-site personnel through sound and light signals or other means, and at the same time activate the locking mechanism to prevent personnel from further entering or operating related equipment, thereby effectively avoiding the occurrence of safety accidents;

[0003] For example, a safety lock and alarm device for personnel entering a dangerous area of ​​a chute transfer and crushing disclosed in the authorization announcement number CN220381644U includes four parts: a frame, a control box, an audible and visual alarm, and an infrared monitoring camera. The audible and visual alarm, the frame, and the infrared monitoring camera are installed in dangerous areas such as chute transfer and crushing, and the control box is fixed in the surrounding safe environment. When a person is detected entering a dangerous area, the control box controls the audible and visual alarm to sound an alarm and issue a reminder. The structure is simple, safe and reliable, and can monitor the intrusion of personnel in dangerous areas in real time. According to the preset algorithm, the personnel intrusion alarm and lock output are performed to shut down the machine. However, the technical solution still needs to implement the isolation operation of the dangerous area through isolation doors, access control and other structures during use. This part of the structure works in a harsh mine environment and may fail due to wear, aging or corrosion. The electronic components may fail due to power fluctuations, electromagnetic interference or dust accumulation, resulting in the risk of forced entry or accidental entry into the dangerous area. Utility Model Content

[0004] The purpose of the utility model is to provide a locking device for preventing personnel from intruding into dangerous areas of mines, which utilizes gratings and identity identifiers to identify and confirm the information of personnel in dangerous areas, and cooperates with two connecting rod swing-pushing structures capable of bidirectional electric operation and a connecting rod type locking structure to lock and unlock the safety door leaf, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking device for personnel intrusion into a dangerous area of ​​a mine, comprising a double-door frame and safety door leaves hingedly installed on both sides of the surface of the double-door frame by hinges, convex plates are fixed on both sides of the surface of the double-door frame, and a grating is installed on one side of the outer wall of one of the convex plates, a bottom frame is installed on the bottom edge of the double-door frame, and two symmetrical pads are installed on the back of the bottom frame, and a connecting rod type locking structure for blocking the opening of the safety door leaf is arranged at the corners of one end of the two pads away from each other, and the two pads are A transmission shell is installed on the outer wall of the side of the plate away from the bottom frame, and a two-way power transmission component is arranged inside the transmission shell. A connecting rod swing-pushing structure connected to the connecting rod type locking structure is installed on the surface of the pad. A servo motor is installed on the surface of the transmission shell. The rotational power of the servo motor is transmitted to the two connecting rod swing-pushing structures through the two-way power transmission component. An identity identifier is installed on one side of the surface of the double-door frame, and the output end of the identity identifier is electrically connected to the input end of the servo motor, and the input end of the identity identifier is electrically connected to the output end of the grating.

[0006] Preferably, steel meshes are installed at both ends of the surface of the safety door leaf, and a mechanical door lock is installed at the frame of the safety door leaf.

[0007] Preferably, the connecting rod type locking structure includes a right-angle seat fixed at the corner position of the pad, and a main joint hingedly installed at the top of the right-angle seat, a secondary connecting head is hingedly connected to one end of the main joint close to the connecting rod swing-push structure, and a locking rod is fixed to the top of the main joint.

[0008] Preferably, the connecting rod swing-push structure includes a connecting rod slidably mounted on the top of the right-angle seat, and a rotating shaft rotatably mounted on one side of the surface of the transmission housing, one end of the rotating shaft extends to the interior of the transmission housing and is connected to a bidirectional power transmission component, and a bending arm is fixed to the other end of the rotating shaft, and the top of the bending arm and one end of the connecting rod are hinged to each other.

[0009] Preferably, the bidirectional power transmission component includes a bidirectional screw pushing structure arranged inside the transmission housing, and a bevel gear transmission structure installed at the output end of the servo motor for driving the bidirectional screw pushing structure to work, and the two moving ends of the bidirectional screw pushing structure are installed with a gear rack transmission structure for driving the rotating shaft to rotate.

[0010] Preferably, the gear rack transmission structure includes a linear rack installed on the moving end of the bidirectional screw pushing structure, and a gear installed on one end of the rotating shaft surface, and the gear and the linear rack are meshed with each other.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the locking device for preventing personnel from intruding into dangerous areas of mines is equipped with structures that cooperate with each other, such as gratings and connecting rod type locking structures. The locking device can confirm the identity and authority of personnel, and only authorized personnel can pass identity verification and enter the dangerous area, which greatly reduces the risk of unauthorized personnel forcibly breaking in or entering by mistake. The connecting rod type locking structure and the connecting rod swing-push structure also make the locking and unlocking operations of the safety door leaf faster and more flexible. In complex environments such as mines, it can be used in conjunction with existing door leaves, and it works stably and reliably, with a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0015] Figure 4 It is a rear cross-sectional structural diagram of the transmission housing of the utility model;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the transmission housing of the utility model;

[0017] In the figure: 1. double door frame; 2. safety door leaf; 3. steel mesh; 4. identity identifier; 5. convex plate; 6. grating; 7. bottom frame; 8. pad; 9. transmission housing; 10. servo motor; 1001. bevel gear transmission structure; 1002. bidirectional screw rod pushing structure; 1003. gear rack transmission structure; 11. connecting rod type locking structure; 1101. right angle seat; 1102. main joint; 1103. auxiliary connector; 1104. locking rod; 12. connecting rod swing push structure; 1201. rotating shaft; 1202. bending arm; 1203. connecting rod. DETAILED DESCRIPTION

[0018] 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. 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.

[0019] See also Figure 1-5The utility model provides an embodiment: a locking device for personnel intrusion into a dangerous area of ​​a mine, comprising a double door frame 1 and safety door leaves 2 hingedly installed on both sides of the surface of the double door frame 1 through hinges, convex plates 5 are fixed on both sides of the surface of the double door frame 1, and a grating 6 is installed on one side of the outer wall of one of the convex plates 5. When a person passes through the grating 6, the interference or diffraction pattern of the grating 6 will be changed, thereby triggering the device to respond;

[0020] A bottom frame 7 is installed at the bottom edge of the double-door frame 1, and two symmetrical pads 8 are installed on the back of the bottom frame 7. A connecting rod type locking structure 11 for blocking the opening of the safety door leaf 2 is arranged at the corners of the two pads 8 away from each other. A transmission shell 9 is installed on the outer wall of the side of the two pads 8 away from the bottom frame 7. A two-way power transmission component is arranged inside the transmission shell 9. A connecting rod swing-pushing structure 12 connected to the connecting rod type locking structure 11 is installed on the surface of the pads 8. A servo motor 10 is installed on the surface of the transmission shell 9. The rotary power of the servo motor 10 is transmitted to the two connecting rod swing-pushing structures 12 through the two-way power transmission component. An identity identifier 4 is installed on one side of the surface of the double-door frame 1. The output end of the identity identifier 4 is electrically connected to the input end of the servo motor 10, and the input end of the identity identifier 4 is electrically connected to the output end of the grating 6.

[0021] Steel mesh 3 is installed at both ends of the surface of the safety door leaf 2, and a mechanical door lock is installed at the frame of the safety door leaf 2, which can control the locking status of the safety door leaf 2 and the double door frame 1;

[0022] The connecting rod type locking structure 11 comprises a right angle seat 1101 fixed at the corner position of the backing plate 8, and a main joint 1102 hingedly installed at the top of the right angle seat 1101, a secondary connector 1103 is hingedly connected to one end of the main joint 1102 close to the connecting rod swing-pushing structure 12, and a locking rod 1104 is fixed at the top of the main joint 1102;

[0023] The end of the connecting rod 1203 is hinged to one end of the auxiliary connector 1103. When the connecting rod 1203 is pushed and slid, the auxiliary connector 1103 drives the main connector 1102 and the locking rod 1104 to swing, so that the locking rod 1104 changes from a horizontal state to an upright state, thereby blocking the safety door leaf 2, thereby ensuring that the door leaf can be firmly locked when closed, preventing unauthorized personnel from entering the dangerous area;

[0024] The connecting rod swing push structure 12 includes a connecting rod 1203 slidably mounted on the top of the right-angle seat 1101, and a rotating shaft 1201 rotatably mounted on one side of the surface of the transmission housing 9. One end of the rotating shaft 1201 extends to the interior of the transmission housing 9 and is connected to the bidirectional power transmission component. A bending arm 1202 is fixed to the other end of the rotating shaft 1201. The top of the bending arm 1202 and one end of the connecting rod 1203 are hinged to each other. When the bending arm 1202 and the connecting rod 1203 are hinged, the two can be hinged with a fisheye joint, or with an ordinary U-head and an axle pin. It is only necessary to ensure that the connection between the two is in a hinged state.

[0025] The connecting rod 1203 and the opposite ends of the auxiliary connector 1103 are hinged to each other, and the rotating shaft 1201 and the bending arm 1202 in the connecting rod swinging and pushing structure 12 are driven to rotate by the gear rack transmission structure 1003, and the bending arm 1202 causes the connecting rod 1203 to slide, thereby causing the connecting rod type locking structure 11 to act, that is, converting the rotational motion into the linear motion;

[0026] The bidirectional power transmission component includes a bidirectional screw rod pushing structure 1002 arranged inside the transmission housing 9, and a bevel gear transmission structure 1001 installed at the output end of the servo motor 10 for driving the bidirectional screw rod pushing structure 1002 to work, and the two moving ends of the bidirectional screw rod pushing structure 1002 are installed with a gear rack transmission structure 1003 for driving the rotating shaft 1201 to rotate, and the gear rack transmission structure 1003 includes a linear rack installed on the moving end of the bidirectional screw rod pushing structure 1002, and a gear installed at one end of the surface of the rotating shaft 1201, and the gear and the linear rack are meshed with each other;

[0027] The servo motor 10 is a motor that can accurately control the position and speed. It receives a pulse input signal and controls the rotation angle and speed of the rotor according to the signal, thereby driving the bidirectional power transmission component and the connecting rod swing push structure 12 to achieve precise control of the connecting rod type locking structure 11; the rotational power of the servo motor 10 is first transmitted to the bevel gear transmission structure 1001, thereby causing the bidirectional screw push structure 1002 to move, and the bidirectional screw push structure 1002 causes the connecting rod swing push structure 12 to work through the gear rack transmission structure 1003.

[0028] When the embodiment of the present application is in use, first, the locking device is installed at the entrance to the dangerous area of ​​the mine. When a person is located directly in front of the two safety door leaves 2 and passes through the grating 6, the person will destroy the interference or diffraction pattern of the grating 6, thereby activating the device. The identity identifier 4 obtains the facial information and ID card information of the person through a camera or scanner based on image processing and OCR technology, and performs preprocessing, feature extraction and comparison to achieve rapid and accurate identification of the ID card information, which is used to verify the identity and authority of the person to ensure that only authorized personnel can enter the dangerous area. When the person is not allowed to enter the area, the identity identifier 4 sends a working signal to the servo motor 10, and then the rotational power of the servo motor 10 is transmitted to the The two connecting rod swing-pushing structures 12 force the connecting rod type locking structure 11 to move. When the connecting rod type locking structure 11 is in a specific position, the safety door leaf 2 will be locked and difficult to push open, ensuring that the safety door leaf 2 can be firmly locked when closed to prevent unauthorized personnel from entering the dangerous area. The locking device can confirm the identity and authority of the personnel, and only authorized personnel can pass the identity authentication and enter the dangerous area, which greatly reduces the risk of unauthorized personnel forcibly breaking in or entering by mistake. The connecting rod locking structure 11 and the connecting rod swing-pushing structure 12 also make the locking and unlocking operations of the safety door leaf 2 faster and more flexible. In complex environments such as mines, it can be used in conjunction with existing door leaves, and it works stably and reliably with a long service life.

Claims

1. A locking device for preventing personnel from entering a dangerous area of ​​a mine, characterized in that: The invention comprises a double door frame (1) and safety door leaves (2) hingedly mounted on both sides of the surface of the double door frame (1) via hinges, convex plates (5) being fixed on both sides of the surface of the double door frame (1), and a grating (6) being mounted on one side outer wall of one of the convex plates (5), a bottom frame (7) being mounted on the bottom edge of the double door frame (1), and two symmetrical pads (8) being mounted on the back side of the bottom frame (7), a connecting rod type locking structure (11) for blocking the safety door leaves (2) from opening being arranged at the corners of the ends of the two pads (8) away from each other, and a transmission housing (9) being mounted on the outer walls of the two pads (8) away from the bottom frame (7), A bidirectional power transmission component is arranged inside the transmission housing (9); a connecting rod swing-pushing structure (12) connected to a connecting rod type locking structure (11) is mounted on the surface of the pad (8); a servo motor (10) is mounted on the surface of the transmission housing (9); the rotary power of the servo motor (10) is transmitted to the two connecting rod swing-pushing structures (12) through the bidirectional power transmission component; an identity identifier (4) is mounted on one side of the surface of the double-door frame (1); an output end of the identity identifier (4) is electrically connected to an input end of the servo motor (10); and an input end of the identity identifier (4) is electrically connected to an output end of the grating (6).

2. A locking device for preventing personnel from entering a dangerous area of ​​a mine according to claim 1, characterized in that: Steel meshes (3) are installed at both ends of the surface of the safety door leaf (2), and a mechanical door lock is installed at the frame of the safety door leaf (2).

3. A locking device for preventing personnel from entering a dangerous area of ​​a mine according to claim 1, characterized in that: The connecting rod type locking structure (11) comprises a right angle seat (1101) fixed at the corner position of the pad (8), and a main joint (1102) hingedly installed at the top of the right angle seat (1101), a secondary connecting head (1103) is hingedly connected to one end of the main joint (1102) close to the connecting rod swing-pushing structure (12), and a locking rod (1104) is fixed to the top of the main joint (1102).

4. A locking device for preventing personnel from entering a dangerous area of ​​a mine according to claim 3, characterized in that: The connecting rod swing-push structure (12) comprises a connecting rod (1203) slidably mounted on the top end of the right-angle seat (1101), and a rotating shaft (1201) rotatably mounted on one side of the surface of the transmission housing (9), one end of the rotating shaft (1201) extends into the interior of the transmission housing (9) and is connected to a bidirectional power transmission component, and a bending arm (1202) is fixed to the other end of the rotating shaft (1201), and the top end of the bending arm (1202) and one end of the connecting rod (1203) are hinged to each other.

5. A locking device for preventing personnel from entering a dangerous area of ​​a mine according to claim 4, characterized in that: The bidirectional power transmission component comprises a bidirectional screw pushing structure (1002) arranged inside a transmission housing (9), and a bevel gear transmission structure (1001) installed at the output end of a servo motor (10) for driving the bidirectional screw pushing structure (1002) to work, and two movable ends of the bidirectional screw pushing structure (1002) are installed with a gear rack transmission structure (1003) for driving the rotating shaft (1201) to rotate.

6. A locking device for preventing personnel from entering a dangerous area of ​​a mine according to claim 5, characterized in that: The gear rack transmission structure (1003) comprises a linear rack mounted on the moving end of the bidirectional screw pushing structure (1002), and a gear mounted on one end of the surface of the rotating shaft (1201), the gear and the linear rack meshing with each other.

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