Double-control protective door for underground panel opening of metal mine

Abstract

The utility model provides a metal mine underground panel opening double-control type protective door which comprises two first door bodies which are symmetrically arranged, any one of the first door bodies is provided with a second door body, a shaft sleeve is arranged on one side of the second door body, a lock body assembly is arranged on the other side of the second door body, and the second door body is rotationally connected with the first door bodies through the shaft sleeve. The lock body assembly comprises an electromagnetic lock, the electromagnetic lock comprises a secondary lock and a primary lock, the secondary lock is located on the side portion of the first door body, the primary lock is located on the side portion of the second door body, and when the electromagnetic lock is powered on, the primary states of the secondary lock and the primary lock are attracted. According to the utility model, safety accidents such as vehicle collision or personnel injury and the like caused by the fact that external vehicles under the metal mine intrude into the panel without notification can be avoided, and meanwhile, the safety protection device has the characteristics of convenience in material drawing, simplicity in installation, practicability and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment technology and relates to a dual-control protective door for the entrance of an underground panel in a metal mine. Background Technology

[0002] Currently, with the continuous improvement of mining mechanization, the number of vehicles used for underground production and material transportation is constantly increasing. In the limited space underground, when vehicles or personnel unfamiliar with the real-time production conditions of the mining area enter the panel, collisions are prone to occur, causing personal injuries and other safety accidents. Furthermore, collisions can easily lead to fires. To prevent unauthorized vehicles from entering the production area without guidance and causing safety accidents, and to effectively implement safety control of vehicles entering the panel, it is necessary to invent a protective door for underground metal mine panel entrances that is simple to manufacture and install, uses readily available materials, is inexpensive, and easy to operate. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the prior art by providing a dual-control protective door for the entrance of a metal mine underground panel, which solves the problem that in existing metal mines, unauthorized vehicles can easily enter the panel without prior notice, leading to vehicle collisions or personal injuries and other safety accidents.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A dual-control protective door for the entrance of an underground panel in a metal mine includes two first door bodies arranged symmetrically, wherein each first door body is provided with a second door body, and a bushing is provided on one side of the second door body and a lock body assembly is provided on the other side. The second door body is rotatably connected to the first door body through the bushing.

[0006] The lock body assembly includes an electromagnetic lock, which includes a sub-lock and a master lock. The sub-lock is located on the side of the first door body, and the master lock is located on the side of the second door body. When the electromagnetic lock is energized, the sub-lock and the master lock are initially engaged.

[0007] The bottom edge of the main lock is provided with a baffle, and a pin is provided below the baffle. Both are horizontally arranged. The bottom of the pin is provided with a first insert and a second insert arranged in parallel. The two are respectively located on the side of the second door and the side of the other first door. The other first door and the second door are respectively provided with pin sleeves at the positions corresponding to the first insert and the second insert.

[0008] Furthermore, it also includes a switch that is electrically connected to the electromagnetic lock.

[0009] Furthermore, the first door body has a door hinge on its side, and the two are rotatably connected by a door post.

[0010] Furthermore, the electromagnetic lock has a combination lock on its side, and the two are electrically connected.

[0011] Furthermore, the first insertion rod is a straight rod, and the second insertion rod is an L-shaped rod with its bend located at the bottom.

[0012] Furthermore, the switch is a plate switch.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention enables a lock to serve two purposes: the second door is for personnel access only, while the first door primarily controls vehicle access to the mining area. The opening and closing of both doors are controlled by the lock assembly. This invention effectively addresses the safety hazards in metal mines caused by unauthorized vehicles entering the mining area without prior notice, leading to collisions and injuries. Furthermore, this invention is characterized by its readily available materials, simple installation, and reliable operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the lock body assembly in this utility model.

[0017] In the diagram, 1-first door body, 2-second door body, 3-sleeve, 4-electromagnetic lock, 4a-baffle, 5-keypad, 6-bolt, 6a-first insertion rod, 6b-second insertion rod, 7-pin sleeve, 8-door post, 9-door hinge, 10-switch. Detailed Implementation

[0018] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0019] like Figure 1 As shown, a dual-control protective door for the entrance of an underground panel in a metal mine includes two first door bodies 1 arranged symmetrically, wherein each first door body 1 is provided with a second door body 2. A bushing 3 is provided on one side of the second door body 2 and a lock body assembly is provided on the other side. The second door body 2 is rotatably connected to the first door body 1 through the bushing 3. It also includes a switch 10, which is a plate switch and is electrically connected to the lock body assembly.

[0020] like Figure 2 As shown, the lock body assembly includes an electromagnetic lock 4, which includes a sub-lock and a master lock. The sub-lock is located on the side of the first door body 1, and the master lock is located on the side of the second door body 2. Specifically, the sub-lock is located at the edge of the first door body 1 and is L-shaped, fitting precisely at the edge of the first door body 1; the master lock is located at the edge of the second door body 2 and is L-shaped, fitting precisely at the edge of the second door body 2; the sub-lock and the master lock are arranged in parallel.

[0021] When the electromagnetic lock 4 is powered on, the daughter lock and the mother lock are initially engaged. The switch 10 is electrically connected to the electromagnetic lock 4. The electromagnetic lock 4 has a password panel 5 on its side, and the two are electrically connected. The plate switch 10 is installed on the tunnel wall within 5-10m inside the double-control protective door and is connected to the electromagnetic lock 4 by a cable. When personnel come out of the panel area, they press the plate switch 10, and the electromagnetic lock 4 will open.

[0022] The bottom edge of the main lock is provided with a baffle 4a, and a pin 6 is provided below the baffle 4a. Both are horizontally arranged. The bottom of the pin 6 is provided with a first insert 6a and a second insert 6b arranged in parallel. Specifically, the first insert 6a is a straight rod, and the second insert 6b is an L-shaped rod with its bend located at the bottom to prevent the pin 6 from falling off when the protective door is opened. The first insert 6a is located on the side of the second door body 2, and the second insert 6b is located on the side of the other first door body 1. The other first door body 1 and the second door body 2 are respectively provided with pin sleeves 7 at the positions corresponding to the first insert 6a and the second insert 6b. When the protective door is closed, the pin 6 is inserted into the pin sleeve 7.

[0023] The side of the first door body 1 is provided with a door hinge 9, and the two are rotatably connected to the door post 8 through the door hinge 9; the door post 8 is made of square steel or channel steel welded to the anchor rods anchored in the walls on both sides, and its height is the same as that of the first door body 1 and the second door body 2.

[0024] Before installation, anchor rods should be pre-anchored at the selected appropriate location according to the installation dimensions. The installation positions of the first gate body 1 and the second gate body 2 are located on the straight roadway within 10m before and after the gate of the panel to avoid collisions between vehicles entering and exiting.

[0025] In this utility model, the gatepost 8 is made of I-beams, which can bear the weight of the gate and has a certain strength. It is welded to the anchor rod and is 1.8m high. The lower end of the gatepost 8 is close to the ground. The two gateposts 8 are on the same plane and the plane formed is perpendicular to the axis of the tunnel.

[0026] The frame of the first gate 1 is made of DN40 steel pipe, the width of which is half the distance between the two gateposts 8, and the height is 1.7m. Several vertical bars are provided between the upper and lower frames of the first gate 1, all of which are made of DN20 steel pipe and welded to the upper and lower frames, with a spacing of 20cm.

[0027] Two door hinges 9 are welded to each doorpost 8, located 1 / 5 of the distance from both ends of the doorpost 8. The pins of the door hinges 9 are welded to one side of the first door body 1. The upper frame of the first door body is flush with the top of the doorpost 8, and the lower frame is 10cm from the ground.

[0028] The second door 2 is embedded in the first door 1 on the left side. The sliding sides of the first door 1 and the second door 2 are on the same side. The distance between the upper and lower edges of the second door 2 and the upper and lower edges of the first door 1 is 5cm, which facilitates the opening of the second door 2.

[0029] The bushing 3 is welded to one of the vertical bars of the first door body 1. The distance between the bushing 3 and the side frame of the first door body 1 is the width of the second door body 2, and it is 10cm from the top and bottom frames of the second door body. The vertical bars of the first door body 1, where the bushing 3 is welded, are made of DN40 steel pipe, and the vertical bars of the second door body 2 are made of DN20 steel pipe, with a spacing of 20cm. The second door body 2 is 80cm wide and 1.6m high.

[0030] The pin sleeve 7 is made of DN20 steel pipe with a length of 5cm. The two pin sleeves 7 are welded to the middle of the side frame of the two first door bodies 1 to ensure that their welding height is consistent and their axis is parallel to the side frame of the door.

[0031] With the first door 1 closed, a latch 6 is made according to the spacing between the two pin sleeves 7. The latch 6 is made of Φ16 round steel, and the second insert rod 6b prevents the latch 6 from falling off when the door is opened.

[0032] The master lock of the electromagnetic lock 4 is installed on the push-door side base of the second door 2, and the slave lock is installed on the push-door side base of the first door 1 corresponding to the second door 2 after it is closed. The master lock and the slave lock are installed at the same horizontal position so that the master lock and the slave lock can be locked when the second door 2 is closed.

[0033] A baffle 4a is horizontally welded to the bottom of the main lock, which is adjacent to the electromagnetic lock 4. This baffle is positioned 1cm above the bolt 6 when the first door 1 and the second door 2 are closed, and is parallel to the handle of the bolt 6. The baffle is made of 25*25 angle steel and extends 5cm beyond the side frame of the second door 2 when it is pushed open, which is just enough to prevent the bolt 6 from being pulled out of the sleeve 7.

[0034] A combination lock 5 is installed at an appropriate position on the second door 2 near the side of the door facing in the direction of entry. A panel switch 10 is installed on the tunnel wall five meters behind the first door 1. The electromagnetic lock 4, the combination lock 5, and the panel switch 10 are connected by a cable.

[0035] Before use, all welded parts and cut edges should be sanded and coated with anti-rust paint.

[0036] The usage process of this utility model is as follows:

[0037] When external personnel want to enter the control area, they need to enter a password on the keypad 5 outside the door. The electromagnetic lock 4 will unlock automatically, the second door 2 will open, and the personnel can enter.

[0038] When a vehicle enters, follow the above procedure. With the second door 2 open, the baffle 4a releases its obstruction of the latch 6. Pull out the latch 6, and the first door 1 will open, allowing the vehicle to pass.

[0039] When it is necessary to exit the control area, press the plate switch 10 to open the electromagnetic lock 4, and then follow the procedure for entering the control area. Personnel and vehicles can then exit the control area.

Claims

1. A dual-control protective door for the entrance of an underground panel in a metal mine, characterized in that, It includes two first door bodies (1) arranged symmetrically, wherein each first door body (1) is provided with a second door body (2), and a bushing (3) is provided on one side of the second door body (2) and a lock body assembly is provided on the other side. The second door body (2) is rotatably connected to the first door body (1) through the bushing (3). The lock body assembly includes an electromagnetic lock (4), which includes a sub-lock and a master lock. The sub-lock is located on the side of the first door body (1) and the master lock is located on the side of the second door body (2). When the electromagnetic lock (4) is energized, the sub-lock and the master lock are initially engaged. The bottom edge of the main lock is provided with a baffle (4a), and a pin (6) is provided below the baffle (4a). Both are horizontally arranged. The bottom of the pin (6) is provided with a first insert (6a) and a second insert (6b) arranged in parallel. The two are located on the side of the second door (2) and the side of the other first door (1), respectively. The other first door (1) and the second door (2) are respectively provided with pin sleeves (7) at the positions corresponding to the first insert (6a) and the second insert (6b).

2. The dual-control protective door for underground panel entrances in metal mines according to claim 1, characterized in that, It also includes a switch (10), which is electrically connected to the electromagnetic lock (4).

3. A dual-control protective door for underground panel entrances in metal mines according to claim 1, characterized in that, The first door body (1) has a door hinge (9) on its side, and the two are rotatably connected by a door post (8).

4. A dual-control protective door for underground panel entrances in metal mines according to claim 1, characterized in that, The electromagnetic lock (4) has a password disk (5) on its side, and the two are electrically connected.

5. A dual-control protective door for underground panel entrances in metal mines according to claim 1, characterized in that, The first insertion rod (6a) is a straight rod, and the second insertion rod (6b) is an L-shaped rod with its bend located at the bottom.

6. A dual-control protective door for underground panel entrances in metal mines according to claim 2, characterized in that, The switch (10) is a plate switch.

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