KR102255474B1 - Apparatus for opening and closing door - Google Patents

Abstract

The present invention relates to a door opening/closing apparatus. The door opening/closing apparatus includes: a pair of doors provided to be opened by being rotated around a vertical rotation axis on both sides of an inlet of a cargo box; a pair of locking bars combined vertically with front sides of the doors respectively to be rotated around a vertical rotation axis in a direction for locking or unlocking, and having a lever on one side provided to be rotated in the direction for locking or unlocking; a front locking unit combined with the front side of one of the pair of doors, and having an engaged groove formed in an upper part such that the lever can be inserted and separated through the upper part; a rear locking unit combined with the rear side of the door combined with the front locking unit, and having a main stopper provided to be moved forward to the engaged groove or moved backward to the back of the engaged groove through the door; and a control unit sensing whether the lever is inserted into the engaged groove, engaging the main stopper with the upper part of the lever by moving the main stopper forward when the lever is inserted in the engaged groove, and disengaging the main stopper from the lever by moving the main stopper backward when an unlocking signal is inputted. Therefore, the present invention is capable of securing the objectiveness of a coating condition inspection.

Description

Door opening and closing device{Apparatus for opening and closing door}

The present invention relates to a door opening and closing device, and more particularly, to a door opening and closing device capable of improving the convenience during baggage loading and unloading operations by converting the door into a locked or unlocked state without key operation.

In general, a loading box provided in a freight vehicle is a kind of container box and is installed at the rear of a freight vehicle, and an opening and closing door is installed at the entrance of the loading box to be opened and closed.

In addition, a door opening and closing device for opening and closing the door is installed at the entrance of the loading box, and has a structure capable of switching the door to a locked or unlocked state through the opening and closing operation of the door opening and closing device.

In such a conventional door locking device, a locking rod is installed so as to be rotatable in the locking or unlocking direction at the front of the door, and a door hook provided at the lower or upper and lower ends of the locking rod is installed at the edge of the corresponding loading box. It has a structure that is jammed or released.

In addition, a lever is installed on one side of the locking rod so as to be rotatable in a locking or unlocking direction, and after rotating the lever to a locked position, the lever can be fixed to a separate fixing structure or maintained in a locked state using a key or the like. On the other hand, when the door is opened, the locking state of the door is released by releasing the locking state of the lever and then rotating the locking rod in the unlocking direction.

However, in the conventional door opening and closing device, the process of opening and closing the door during baggage loading and unloading operation was cumbersome, because the lever must be turned into a locked or unlocked state after rotating the lever in the locking direction, and the lever is unlocked. There was a risk of theft because the door could be easily opened when carrying luggage at the airport.

As a prior document related to the present invention, there is Korean Patent Laid-Open No. 10-2016-0064776 (June 08, 2016), and the prior document discloses a container door fixing device for a truck.

An object of the present invention relates to a door opening and closing device, and more particularly, the door can be switched to a locked or unlocked state without key operation, thereby improving convenience during baggage loading and unloading operations, and through a double locking structure It is to provide a door opening and closing device that can improve security.

The door opening/closing device according to the present invention includes a pair of doors provided so as to be able to rotate open and close based on a vertical rotation center at both sides of the entrance of the loading box, and are respectively coupled vertically to the front of the door to lock or lock based on the vertical rotation center. A pair of locking bars, which can be rotated in the unlocking direction, and one lever is provided to be rotated in the locking or unlocking direction, and is coupled to the front of any one of the pair of doors, and the lever is inserted through the top and A front locking unit having a locking groove formed at an upper portion thereof so as to be separated, and the front locking unit is coupled to the rear surface of the door, and the main stopper can advance to the locking groove through the door or retreat to the rear of the locking groove. A rear locking unit provided so as to detect whether or not the lever is inserted into the locking groove, and when the lever is inserted into the locking groove, the main stopper is advanced so as to be locked to the upper portion of the lever, and a lock release signal is input And a control unit for disengaging the lever by retreating the main stopper.

In addition, the front locking unit is coupled to the front of the door, the locking groove is formed on the upper portion so that the lever is inserted and released, the front body having a rear passage formed on the rear side so that the main stopper passes, and the lock release An input unit may be further provided on the front side of the front body to enable signal input.

In addition, the rear locking unit includes a first rear body in which the main stopper is provided so as to move forward and retract through the front side, a first driving motor coupled to an internal installation space of the first rear body, and the first driving motor A first power transmission unit mechanically connecting the rear end of the main stopper to the driving shaft of, and a power supply unit for supplying power to the first driving motor, wherein the first power transmission unit is a driving shaft of the first driving motor. A first rotating member rotatably connected to the locking or unlocking direction, and the lower end is mechanically connected to the first rotating member so that it is possible to move up and down to the locked position of the lower or the unlocked position of the upper, and the upper end is the main stopper. It is mechanically connected to the rear end of the, and may be provided with an operation member for moving the main stopper in the locking or unlocking direction by the lifting operation.

In addition, a hinge shaft forming a horizontal center of rotation may be provided at the rear end of the main stopper, and the hinge shaft is laterally coupled to the operation member, and an inclined hole extending downwardly inclined to the rear is formed through the side. I can.

In addition, a first guide protrusion protruding rearward may be provided at the front of the installation space, and the operation member penetrates back and forth so that the first guide protrusion is inserted, and a first guide groove having a length along the vertical direction is provided. It can be further formed.

In addition, a first eccentric protrusion capable of eccentric rotation in a locking or unlocking direction may protrude forward at one side of the first rotating member, and a first connection hole so that the first eccentric protrusion is rotatably inserted into the operation member. It may be formed through before and after this.

In addition, the control unit may be further electrically connected to a main sensing unit for detecting whether the lever is inserted into the locking groove, the main sensing unit is provided to protrude or insert from the rear surface of the locking groove, the locking A sensing protrusion inserted rearward when the lever is inserted into a groove, a second elastic member elastically supporting the rear end of the sensing protrusion forward, and electrically connected to the control unit, and detecting whether the sensing protrusion protrudes or is inserted The circuit unit may be further provided.

In addition, an auxiliary locking unit is coupled to the rear of the door to which the front locking unit is coupled while being electrically connected to the control unit, and an auxiliary stopper is provided so as to be advanced or retracted to the side, and electrically connected to the control unit. A pair of auxiliary detection units may be further provided for detecting whether the door is opened or closed by being coupled to the rear surface of the door in a state, and the control unit advances the auxiliary stopper when the door is closed to lock the front side. The unit is positioned at the rear of the door corresponding to the coupled door, and when a lock release signal is input, the auxiliary stopper may be retracted to release the jam.

In addition, the auxiliary locking unit includes a second rear main body in which the auxiliary stopper is provided so as to move forward and retract through one side, a second driving motor coupled to an internal installation space of the second rear main body, and the second driving A second power transmission unit mechanically connecting the driving shaft of the motor and the rear end of the auxiliary stopper may be further provided, and the second power transmission unit is rotatably connected to the driving shaft of the second driving motor in a locking or unlocking direction, , One side may be mechanically connected to the rear end of the auxiliary stopper, and may include a second rotating member for moving the auxiliary stopper in a locking or unlocking direction by a rotating operation.

In addition, further comprising a front auxiliary locking unit coupled to the front of the door corresponding to the door to which the front locking unit is coupled, and having a front auxiliary locking groove formed thereon so that the lever is inserted and released through the upper portion. The front auxiliary locking unit is coupled to the front of the door, the front auxiliary locking groove is formed on the upper portion so that the lever is inserted and released, and a front auxiliary body having a front passage formed on the front side, and , The lock is rotatably installed based on the horizontal rotation center formed on the front side of the front auxiliary body, and the upper end is inserted into the front auxiliary locking groove through the front passage or detachable to the front of the front auxiliary locking groove A member may be further provided, and a first elastic member for elastically supporting the lower end of the locking member forward based on the horizontal rotation center is further provided on the front side of the front auxiliary body, and a rear end of the locking member A locking end may be further provided that is protruded into the front passage and inserted into the front auxiliary locking groove or detachable to the front of the front auxiliary locking groove.

In the present invention, the lever can be switched to the locked or unlocked state without key operation, and the door is switched to the locked state only by the rotation of the lever, so that convenience can be improved during baggage loading and unloading operations, and when the door is closed, Since the door is automatically switched to a locked state, there is an effect that security can be improved through a double locking structure.

1 is a perspective view showing a state in which a door opening and closing device according to the present invention is installed on a door of a loading box.
2 is a perspective view showing a front auxiliary locking unit, a front locking unit, a rear locking unit, and an auxiliary locking unit of the door opening and closing device according to the present invention.
3 is a perspective view showing the internal structure of the front auxiliary locking unit in the door opening and closing device according to the present invention.
Figure 4 is a perspective view showing the internal structure of the input unit in the door opening and closing device according to the present invention.
5 is a perspective view showing the main sensing unit in the door opening and closing device according to the present invention.
6 is a front view showing a front auxiliary locking unit, a front locking unit, a rear locking unit, and an auxiliary locking unit of the door opening and closing device according to the present invention.
7 is a perspective view showing a front auxiliary locking unit, a front locking unit, a rear locking unit, and an auxiliary locking unit of the door opening and closing device according to the present invention from the rear.
8 is an exploded perspective view showing the front auxiliary locking unit, the front locking unit, the rear locking unit, and the auxiliary locking unit of the door opening and closing device according to the present invention from the rear.
9 is an exploded perspective view showing the rear locking unit of the door opening and closing device according to the present invention from the rear.
10 is a perspective view showing the main sensing unit from the rear in the door opening and closing device according to the present invention.
11 is a rear view showing the rear locking unit and the auxiliary locking unit of the door opening and closing device according to the present invention.
12 is a front view for showing the rear locking unit of the door opening and closing device according to the present invention from the side.
13 is a perspective view showing the auxiliary locking unit from the rear in the door opening and closing device according to the present invention.
14 is a perspective view illustrating in detail an auxiliary stopper, a second driving motor, a second power transmission unit, and a third elastic member in the door opening and closing device according to the present invention.
15 is a rear view for showing the auxiliary locking unit in the door opening and closing device according to the present invention.
16 is a perspective view illustrating in detail an auxiliary stopper, a second driving motor, a second power transmission unit, an elastic stopper, and a third elastic member in the door opening and closing device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Advantages and features of the present invention, and a method of achieving the same will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited by the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims.

In addition, in describing the present invention, when it is determined that related known technologies or the like may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a perspective view for showing a state in which a door opening and closing device according to the present invention is installed on a door of a loading box, and FIG. 2 is a front auxiliary locking unit, a front locking unit, a rear locking unit, and an auxiliary of the door opening and closing device according to the present invention. It is a perspective view for showing the locking unit, Figure 3 is a perspective view for showing the internal structure of the front auxiliary locking unit in the door opening and closing device according to the present invention. In addition, Figure 4 is a perspective view showing the internal structure of the input unit in the door opening and closing device according to the present invention, Figure 5 is a perspective view showing the main detection unit in the door opening and closing device according to the present invention, Figure 6 is It is a front view showing the front auxiliary locking unit, the front locking unit, the rear locking unit, and the auxiliary locking unit of the door opening and closing device.

7 is a perspective view showing the front side auxiliary locking unit, the front locking unit, the rear locking unit, and the auxiliary locking unit from the rear of the door opening and closing device according to the present invention, and FIG. 8 is a front side of the door opening and closing device according to the present invention. It is an exploded perspective view showing the auxiliary locking unit, the front locking unit, the rear locking unit, and the auxiliary locking unit from the rear, and Fig. 9 is an exploded perspective view showing the rear locking unit of the door opening and closing device according to the present invention from the rear. In addition, Figure 10 is a perspective view for showing the main sensing unit from the rear in the door opening and closing device according to the present invention, Figure 11 is a rear view for showing the rear locking unit and the auxiliary locking unit of the door opening and closing device according to the present invention, 12 is a front view for showing the rear locking unit of the door opening and closing device according to the present invention from the side.

13 is a perspective view showing the auxiliary locking unit from the rear in the door opening and closing device according to the present invention, and FIG. 14 is a second stopper, a second driving motor, a second power transmission unit, and a third in the door opening and closing device according to the present invention. It is a perspective view for showing in detail the elastic member, and Figure 15 is a rear view for showing the auxiliary locking unit in the door opening and closing device according to the present invention. 16 is a perspective view illustrating in detail an auxiliary stopper, a second driving motor, a second power transmission unit, an elastic stopper, and a third elastic member in the door opening and closing device according to the present invention.

1 to 16, the door opening and closing device according to the present invention includes a pair of doors 10, a pair of locking bars 20, a front locking unit 200, and a rear locking unit 300. And, it includes a control unit 400.

A pair of doors 10 are opened and closed in an opening/closing shape with one end facing each other based on a vertical center of rotation, and the pair of doors 10 is locked or unlocked by a locking bar 20 to be described later. Is converted. Here, rotation shafts are vertically installed on both sides of the entrance of the loading box (1), and the doors 10 are rotated to the outside of the loading box (1) based on the rotation axis to open the entrance or rotate in the direction of the loading box (1) to open the entrance. Closed.

In the case of closing the entrance of the loading box 1, one or more of the pair of doors 10 may be rotated rearward and positioned parallel to the entrance, and then the locking bar 20 may be switched to a locked state. On the other hand, in the case of opening the entrance of the loading box (1), after switching the lock bar (20) to the unlocked state, one or more of the pair of doors (10) is rotated in front of the entrance of the loading box (1) to open the entrance. I can make it.

A pair of locking bars 20 are vertically coupled to the front of the door 10 and can be rotated horizontally in the locking or unlocking direction based on the vertical center of rotation, and a lever 21 on one side of the locking bar 20 ) Is provided to be rotatable in the locking or unlocking direction.

Here, the pair of locking bars 20 has a length vertically, and a portion of the locking bar 20 is coupled to the front surface of the door 10 so as to be horizontally rotatable. To this end, a ring-shaped coupling member having a hollow vertically penetrating through the door 10 may be provided on the front surface of the door 10 so that the locking bar 20 can be vertically coupled, and the coupling member may be provided along the vertical direction of the door 10. Many can be arranged in a spaced state.

In addition, a locking member for locking or releasing the locking bar 20 may be provided at the upper and lower portions of the entrance, and locking protrusions for locking or releasing the locking member are provided at the upper and lower ends of the locking bar 20, respectively. It can be provided. The locking or releasing structure of the locking member and the locking protrusion can be applied in various ways as necessary.

For example, when the door 10 is rotated to the closed position, the locking protrusion of the locking bar 20 is inserted into the locking member. Thereafter, when the locking bar 20 is rotated in the locking direction, the locking protrusion of the locking bar 20 is rotated horizontally and is positioned inside the locking member.

In this state, when the locking bar 20 is rotated to the unlocked position, the locking protrusion of the locking bar 20 is horizontally rotated to release the locking member. Thereafter, when the door 10 is rotated to the open position, the locking protrusion of the locking bar 20 may be separated from the front of the locking member.

The lever 21 is for rotating the locking bar 20 to the locking position or the locking position, and is installed on a pair of locking bars 20, respectively, and has a predetermined length so that the user can grip it by hand. Here, one end in the longitudinal direction of the lever 21 is rotatably connected to the width direction of the locking bar 20, and the opposite end is provided so as to be rotatable in the locking or unlocking direction.

One side of the pair of locking bars 20 is provided with a hinge shaft that forms a horizontal center of rotation in the front-rear direction, and one end of the lever 21 in the longitudinal direction is rotatably coupled to the hinge shaft. The other end may be bent forward so as to be spaced apart from the door 10 and then bent laterally. At this time, a gap is formed between the lever 21 and the door 10 to be gripped by the user.

Such a lever 21 may be rotated in the width direction of the locking bar 20 to be horizontally inserted into the front auxiliary locking groove 101 or the locking groove 201 to be described later, and the locking bar 20 It may be rotated in the longitudinal direction to be separated from the front side auxiliary locking groove 101 or the upper portion of the locking groove 201.

The front locking unit 200 is coupled to the front of the door 10 corresponding to the door 10 in which the front auxiliary locking unit 100 to be described later is installed, and a locking groove at the top so that the lever is inserted and released through the top. 201 is formed. The locking groove 201 is opened in the left and right direction so that the lever 21 can be horizontally inserted, and the front and rear surfaces of the lever 21 inserted horizontally into the locking groove 201 are locked in the locking groove 201 do.

The front locking unit 200 according to an embodiment of the present invention is coupled to the front of the door 10, has a locking groove 201 formed at the top so that the lever 21 is inserted and released, and a main stopper (to be described later) ( A front body 210 having a rear passage 211 penetrating forward and backward on the rear surface so that 301 passes, and an input unit 220 may be further provided on the front surface of the front body 210 to enable input of a lock release signal.

Since the front body 210 has a shape that the upper end of the front portion can be gripped by hand based on the locking groove 201, the user rotates the lever 21 to the unlocked position, and then the front body 210 The door 10 can be rotated in the opening/closing direction while holding the front part by hand.

The input unit 220 is electrically connected to the control unit 400, which will be described later, and is provided on the front of the front body 210, and on the front of the input unit 220, the user can use a touch method (electrostatic type, piezoelectric type, etc.). A touch panel may be provided to input a PIN number or contact a card key, and a circuit unit (not shown) electrically connected to the touch panel may be provided at the rear of the input unit 220.

Here, numbers (1, 2, 3, etc.), symbols (#, *, etc.) may be displayed on the touch panel of the input unit 220, and a lamp (not shown) may be turned on when the user touches the touch panel. In addition, a card contact part may be provided so that the user may contact the card key. In addition, the input unit 220 may be provided with a detection function for unlocking the lock when the user's human body approaches a set distance (2m, etc.).

The input method of the input unit 220 and information displayed externally can be applied in various ways as necessary, and the detection function that unlocks the lock when the user's body approaches a set distance is activated or deactivated by the user's selection. In addition, a cover (not shown) capable of opening and closing (sliding, etc.) may be provided on the front surface of the input unit 220.

In addition, a waterproof pad that is in close contact with the front of the door 10 may be further coupled to the rear of the front body 210, and the waterproof pad may be manufactured using a material such as rubber. That is, it is possible to prevent moisture and foreign substances from entering between the rear surface of the front body 210 and the door 10.

On the other hand, the front locking unit 200 is coupled to the front of the door 10 corresponding to the coupled door 10, and the front auxiliary locking groove 101 on the upper side so that the lever 21 is inserted and released through the upper portion. It may further include a front side auxiliary locking unit 100 is formed.

The front auxiliary locking unit 100 is coupled to the front of the door 10 corresponding to the door 10 to which the front locking unit 200 is coupled, and the lever 21 of the locking bar 20 is inserted through the top. And the front side auxiliary locking groove 101 is formed in the upper portion so as to be separated. The front auxiliary locking groove 101 is opened in the left and right direction so that the lever 21 can be horizontally inserted, and the front and rear surfaces of the lever 21 horizontally inserted into the front auxiliary locking groove 101 are front-side. It is located in the auxiliary locking groove 101.

The front auxiliary locking unit 100 according to an embodiment of the present invention is coupled to the front of the door 10, and a front auxiliary locking groove 101 is formed at the top so that the lever 21 is inserted and released, The front passage 111 is installed to be rotatable based on the horizontal rotation center formed in the front side of the front side auxiliary body 110 and the front side auxiliary body 110 through which the front passage 111 is formed forward and backward, and the upper side is the front passage 111 A locking member 120 capable of being inserted into the front auxiliary locking groove 101 or detachable to the front of the front auxiliary locking groove 101 may be further provided.

Since the front side auxiliary body 110 has a shape that the upper end of the front side can be gripped by hand based on the front side auxiliary locking groove 101, the user rotates the lever 21 to the unlocked position, and then the front side The door 10 may be rotated in the opening/closing direction while holding the front part of the side auxiliary body 110 by hand.

Here, a seating groove may be formed in a concave shape so that the locking member 120 can be inserted correspondingly in the front side of the front auxiliary body 110, and the bottom surface of the seating groove protrudes from the rear surface of the locking member 120. A through hole may be formed so that the coupling protrusion can penetrate forward and backward, and a horizontal rotation center is formed in the left and right directions so that the coupling protrusion of the locking member 120 can be rotatably coupled to the inside of the front auxiliary body 110 It may be provided with a rotating shaft.

In addition, a first elastic member 130 for elastically supporting the lower end of the locking member 120 forward with respect to the rotation axis may be further provided on the front side of the front auxiliary body 110, and the first elastic member 130 ) May be disposed under the rotation shaft, and a coil spring may be used to actuate a compressive elastic force in the forward and backward directions.

That is, the rear end of the first elastic member 130 may be fixed while being supported on the front side of the front auxiliary body 110, and the front end of the first elastic member 130 faces the rear side of the locking member 120 It can be elastically supported. That is, the locking member 120 may maintain a state rotated to the locked position by the compressive elastic force of the first elastic member 130.

In addition, the upper end of the locking member 120 protrudes rearward and inserts into the front auxiliary locking groove 101 through the front passage 111 or a locking end 121 capable of being detached to the front of the front auxiliary locking groove 101 This may be provided, and a corresponding insertion groove may be formed in a concave at the rear of the front auxiliary locking groove 101 so that the locking end 121 can be inserted and removed.

For example, when the user presses the lower end of the locking member 120 backward, the lower end of the locking member 120 is rotated backward and the first elastic member 130 is compressed backward, and the locking member 120 The top of the is rotated forward. At this time, the locking end 121 is moved forward through the front passage 111 and separated from the front auxiliary locking groove 101, and the upper portion of the front auxiliary locking groove 101 is opened, so that the lever 21 is locked in the locking direction. It can be rotated to be horizontally inserted into the front side auxiliary locking groove (101).

Thereafter, when the pressing of the locking member 120 is released, the locking member 120 is rotated in the locking direction by the compressive elastic force of the first elastic member 130, and the locking end 121 is moved rearward to assist the front side. It is located inside the locking groove 101. At this time, the locking end 121 is positioned on the upper portion of the lever 21, and the upper end of the lever 21 is engaged by the locking end 121, so that the lever 21 is moved to the upper portion of the auxiliary locking groove 101 on the front side. Does not meet.

In addition, a waterproof pad that is in close contact with the front of the door 10 may be further coupled to the rear of the front auxiliary body 110, and the waterproof pad may be manufactured using a material such as rubber. That is, moisture and foreign substances can be prevented from entering between the rear surface of the front auxiliary body 310 and the door 10.

The rear locking unit 300 is coupled to the rear of the door 10 to which the front locking unit 200 is coupled, and the main stopper 301 advances through the door 10 to the locking groove 201 or the locking groove 201 ) Is provided to be able to retreat to the rear.

In the rear locking unit 300 according to an embodiment of the present invention, the main stopper 301 is installed inside the first rear body 310 and the first rear body 310 is provided so as to move forward and retreat through the front. A first drive motor 320 coupled to the space 311, a first power transmission unit 330 mechanically connecting the drive shaft of the first drive motor 320 and the rear end of the main stopper, and a first drive motor ( A power supply unit 340 for supplying power to 320 may be further provided.

The first rear body 310 has an installation space 311 formed therein, and a cover may be opened and closed at the rear thereof, and a power supply unit (4 AA size batteries) at the rear of the first rear body 310 A battery mounting part for coupling the etc. 340 and a battery cover for opening and closing the rear of the battery mounting part may be combined. A through hole communicating with the above-described rear passage 211 may be formed through the front side of the first rear body 310 so that the front end of the main stopper 301 can appear and protrude forward and backward.

The main stopper 301 is installed to be slidable back and forth in the installation space 311 of the first rear body 310, and is a locked position at the front or a locked unlock position at the rear by the driving force of the first driving motor 320 It is moved to the slide.

For example, when the main stopper 301 is moved to the locked position, the front end of the main stopper 301 passes through the through hole and the rear passage 211 of the first rear body 310 to the inside of the locking groove 201 It protrudes horizontally. At this time, since the upper portion of the locking groove 201 is blocked by the main stopper 301, the lever 21 inserted horizontally into the locking groove 201 is not separated from the upper portion of the locking groove 201.

On the other hand, when the main stopper 301 is moved to the unlocked position, the front end of the main stopper 301 is retracted to the rear of the locking groove 201. At this time, since the upper portion of the locking groove 201 is opened, the lever 21 is horizontally inserted into the locking groove 201, or the lever 21 inserted horizontally into the locking groove 201 is the upper portion of the locking groove 201. Can be separated by

In addition, at the front end of the main stopper 301, a locking portion may be provided to be coupled and separated male and female, and the front end of the main stopper 301 and the rear end of the locking portion may be coupled to correspond to each other in male and female, and through the front end of the locking portion The fastening member may be coupled to the front end of the main stopper 301. That is, since the length of the locking portion can be adjusted, the length of the main stopper 301 can be variably adjusted according to the thickness of the door 10.

The first driving motor 320 is for moving the main stopper 301 to a locked or unlocked position, and is fixedly installed in the installation space 311 of the first rear body 310, and the first driving motor 320 ) Of the drive shaft is mechanically connected to the main stopper 301 by the first power transmission unit 330, and power is applied from the power supply unit 340, which will be described later.

The first power transmission unit 330 includes a first rotating member 331 rotatably connected to the driving shaft of the first driving motor 320 in a locking or unlocking direction, and a lower end of the first rotating member 331 and mechanically It is connected to the lower locked position or the upper unlocked position, and the upper end is mechanically connected to the rear end of the main stopper 301, and the main stopper 301 is moved in the locking or unlocking direction by the lifting operation. It may be provided with an operating member 332 to let.

The first rotating member 331 has a rotation center coupled to the driving shaft of the first driving motor 320, and when the first rotating member 331 is rotated in the locking direction, the operating member 332 is moved to the lower locked position. It is lowered so that the main stopper 301 can be moved forward, and when the first rotating member 331 is rotated in the unlocking direction, the operation member 332 is lowered to the unlocked position of the upper portion to move the main stopper 301. Can be moved rearward.

To this end, a hinge shaft 302 forming a horizontal center of rotation in the horizontal direction may be provided at the rear end of the main stopper 301. The hinge shaft 302 is coupled to the operating member 332 laterally, and an inclined hole 332a extending downwardly inclined to the rear may be formed through the side.

For example, when the operation member 332 is lowered to the lower locked position, the hinge shaft 302 is slidingly supported on the rear side of the inclined hole 332a and moves forward, and in this process, the hinge shaft 302 is inclined. It is moved to the upper part of the hole 332a, and the main stopper 301 may be moved to the front locking position.

On the other hand, when the operating member 332 is raised to the upper lock release position, the hinge shaft 302 is slidingly supported on the front side of the inclined hole 332a and moves to the rear. In this process, the hinge shaft 302 is moved to the inclined hole. It is moved to the lower portion of (332a), the main stopper 301 may be moved to the rear lock release position.

In addition, at one side of the first rotating member 331, a first eccentric protrusion 331a capable of eccentric rotation in a locking or unlocking direction may protrude forward, and a first eccentric protrusion 331a may be provided on the operating member 322 The first connection hole 331b may be formed through the front and rear so as to be rotatably inserted. That is, the rotational force of the first rotating member 331 may be transmitted to the operation member 322 by the male and female coupling of the first eccentric protrusion 331a and the first connection hole 331b.

In addition, a first guide protrusion 312 protruding rearward may be provided in the front of the installation space 311, and the operation member 332 penetrates back and forth so that the first guide protrusion 312 is inserted, and moves in the vertical direction. A first guide groove 322b having a length along the length may be further formed.

For example, when the operation member 322 descends to the lower locked position, the first guide protrusion 312 may move to the upper portion of the first guide groove 322b, thereby guiding the movement of the operation member 322. . On the other hand, when the operation member 322 rises to the upper lock release position, the first guide protrusion 312 may move to the lower portion of the first guide groove 322b to guide the movement of the operation member 322.

In addition, a waterproof pad that is in close contact with the rear of the door 10 may be further coupled to the front of the first rear body 310, and the waterproof pad may be manufactured using a material such as rubber. That is, it is possible to prevent moisture and foreign substances from entering between the front surface of the first rear body 310 and the door 10.

The control unit 400 detects whether the lever 400 is inserted into the locking groove, and when the lever 21 is inserted into the locking groove 201, the main stopper 301 is advanced to the locked position, The locking position is placed at the top, and when the lock release signal is input, the main stopper 301 is retracted to the unlocked position to release the locking of the lever 21.

Here, the control unit 400 may be provided in the installation space 311 of the first rear body 310, but the installation position of the control unit 400 can be variously applied as necessary, and the control unit 400 ) May be electrically connected to the above-described input unit 220, the first driving motor 320, the power supply unit 340, and the second driving motor 520 to be described later.

In addition, a main sensing unit 410 for detecting whether the lever 21 is inserted into the locking groove 201 may be further electrically connected to the control unit 400. The main sensing unit 410 is provided so as to be protruded or inserted from the rear side of the locking groove 201, and when inserting the lever 21 into the locking groove 201, a sensing protrusion 411 and a sensing protrusion ( A second elastic member 412 elastically supporting the rear end of the 411 forward, and a circuit part 413 electrically connected to the control unit 400 and detecting whether the sensing protrusion 411 is protruding or inserted is further provided. can do.

The sensing protrusion 411 is provided so that the front end can appear and protrude into the locking groove 201, and the sensing protrusion 411 may be positioned in a state located under the rear passage 211, and the sensing protrusion 411 An inclined surface inclined downward in the front may be formed at the upper end.

The second elastic member 412 may use a coil spring to exert a compressive elastic force in the front-rear direction. That is, the rear end of the second elastic member 412 may be fixed while being supported inside the front body 210, and the front end of the second elastic member 412 elastically supports the rear side of the sensing protrusion 411 forward. can do. That is, the sensing protrusion 411 may maintain a state protruding into the inside of the locking groove 201 by the compressive elastic force of the second elastic member 412.

The circuit part 413 is for detecting whether the detection protrusion 411 is protruding or inserted, and the circuit part 413 may be installed inside the front body 210 and is electrically connected to the control unit 400 described above. And can transmit a detection signal. Here, a photo interrupter for detecting the operation of the sensing protrusion 411 may be installed in the circuit part 413, and the photo interrupter is a combination of a light emitting diode and a photo transistor, and the light emitted by the light emitting diode is a phototransistor. Can receive light and operate the transistor.

For example, when the lever 21 is horizontally inserted into the locking groove 201, the lower end of the lever 21 applies a force to the upper inclined surface of the sensing protrusion 411, and the sensing protrusion 411 is moved backward. At the same time, the second elastic member 412 is compressed backward. At this time, the circuit unit 413 may sense the retraction of the sensing protrusion 411 and transmit a sensing signal to the control unit 400, and the control unit 400 drives the first driving motor 320 to drive the main stopper 301. ) And the auxiliary stopper 501 to be described later can be moved to the locked position.

On the other hand, when the user inputs a password through the input unit 220, the control unit 400 places the main stopper 301 in the unlocked position and separates the lever 21 to the upper portion of the locking groove 201 The sensing protrusion 411 is returned forward by the compressive elastic force of the second elastic member 412.

On the other hand, the auxiliary locking unit 500 may be further electrically connected to the control unit 400, the auxiliary locking unit 500 is coupled to the rear of the door 10 to which the front locking unit 200 is coupled, and the auxiliary stopper (501) is provided to be able to advance or retreat to the side. At this time, when the lever 21 is inserted into the locking groove 201, the control unit 400 advances the auxiliary stopper 501 so that the front auxiliary locking unit 100 is locked at the rear of the door 10 to which the auxiliary locking unit 100 is coupled, When the lock release signal is input, the auxiliary stopper 501 is retracted to release the jam.

For this purpose, the auxiliary locking unit 500 includes a second rear body 510 in which an auxiliary stopper 501 is provided so as to be advanced and retracted through one side, and a second driving unit coupled to the inside of the second rear body 510 A motor 520 and a second power transmission unit 530 mechanically connecting the driving shaft of the second driving motor 520 and the rear end of the auxiliary stopper 501 may be further provided.

Here, a waterproof pad that is in close contact with the rear surface of the door 10 may be further coupled to the front of the second rear body 510, and the waterproof pad may be manufactured using a material such as rubber. That is, it is possible to prevent moisture and foreign substances from entering between the front surface of the second rear body 510 and the door 10.

The second power transmission unit 530 is connected to the drive shaft of the second driving motor 520 so as to be rotatable in the locking or unlocking direction, and one side is mechanically connected to the rear end of the auxiliary stopper 501, and is mechanically connected to the rear end of the auxiliary stopper 501. A second rotation member 531 for moving the auxiliary stopper 501 in the locking or unlocking direction, and a driving gear 532 coupled to the driving shaft of the second driving motor 520 and forming a plurality of teeth along the rotation direction And, a driven gear 533 coupled to one surface in the axial direction of the second rotation member 531 and having a plurality of teeth formed along the rotation direction so as to be engaged and rotated in a direction perpendicular to the driving gear 532 may be provided. have.

One side of the auxiliary stopper 501 is interlockably connected with the second rotating member 531, and the opposite locking end is positioned so as to appear and protrude toward one side of the second rear body 510. For example, when the second rotation member 531 is rotated in the locking direction, the locking end of the auxiliary stopper 501 protrudes to one side of the second rear body 510, and the second rotation member 531 is in the unlocking direction. In the case of rotation, the locking end of the auxiliary stopper 501 may be inserted into the second rear body 510.

Here, a second eccentric protrusion 531a capable of eccentric rotation in a locking or unlocking direction may protrude forward at one side of the second rotating member 531, and a second eccentric protrusion 531a may be provided on the auxiliary stopper 501. The second connection hole 501a may be formed through the front and rear so as to be rotatably inserted. That is, the rotational force of the second rotation member 531 may be transmitted to the auxiliary stopper 501 by the male and female coupling of the second eccentric protrusion 531a and the second connection hole 501a.

In addition, an installation space may be formed inside the second rear body 510, and a second guide protrusion 540 protruding rearward may be provided in the front of the installation space. The auxiliary stopper 501 may further include a second guide groove 502 that penetrates back and forth so that the second guide protrusion 540 is inserted and has a length along the left and right direction.

That is, when the auxiliary stopper 501 moves in the locking or unlocking direction, since the auxiliary stopper 501 is guided by the second guide protrusion 540, the auxiliary stopper 501 can be moved along a predetermined movement path. , It is possible to prevent the position of the auxiliary stopper 501 from being changed.

In the second drive motor 520, the drive shaft may protrude upward, the rotation center of the drive gear 532 may be coupled to the upper end of the drive shaft, and the drive gear 532 gradually decreases in diameter toward the top. It can have a conical shape. The driven gear 533 may have a conical shape whose diameter gradually decreases toward the front, and may be meshed and rotated in the form of a bevel gear in a direction intersecting with the driving gear 532. At this time, the second rotation member 531 may be coupled to the rear surface of the driven gear 532, and may be rotated in the locking or unlocking direction based on the same rotation center as the driven gear 532.

That is, the driving gear 532 is rotated based on a vertical rotation center in the vertical direction, the driven gear 532 is rotatable based on a horizontal rotation center in the front-rear direction, and the second rotation member 531 is a driven gear ( 532) and rotates in the locking or unlocking direction.

In addition, in the installation space of the second rear body 510, an elastic stopper 540 may be further coupled, and the front side of the auxiliary stopper 501 may be located in close contact with the rear side of the elastic stopper 540. , A third guide groove 541 having a length in the left and right direction may be formed concave on the rear surface of the elastic stopper 540.

The elastic stopper 540 provides a double locking structure, and the elastic stopper 540 is coupled to be movable in the locking or unlocking direction together with the auxiliary stopper 501 by a separate fastening member. At this time, an auxiliary guide groove having a length in the left and right direction may be formed through the elastic stopper 540 in the front and rear direction, and a connection capable of sliding movement in the locking or unlocking direction by being inserted into the auxiliary guide groove in the front of the auxiliary stopper 501 The bar can protrude.

Such an elastic stopper 540 is moved together when the auxiliary stopper 501 is moved in the locking or unlocking direction. At this time, depending on the thickness of the door 10, only one of the auxiliary stopper 501 and the elastic stopper 540 is positioned to be caught by the door 10, or the auxiliary stopper 501 and the elastic stopper 540 are placed together on the door 10. Can be positioned to hang.

In addition, the insertion protrusion inserted into the third guide groove 541 may protrude forward on the front side of the auxiliary stopper 501, and the insertion protrusion is movable in the left and right directions inside the third guide groove 541. It may be inserted, and a pair of third elastic members 550 for exerting a compressive elastic force in the left-right direction may be inserted into the third guide groove 541.

The pair of third elastic members 550 may be respectively inserted into both sides of the third guide groove 541 in the longitudinal direction based on the insertion protrusion to elastically support both sides of the insertion protrusion. To this end, the third elastic member 550 may have a coil spring shape for exerting a compressive elastic force in the left and right directions.

When the auxiliary stopper 501 moves in the locking or unlocking direction, the insertion protrusion moves along the length direction of the third guide groove 541, and a pair of third elastic members 550 move the insertion protrusion in the left-right direction. As it is supported, when the insertion protrusion moves in the locking or unlocking direction, it exerts a compressive elastic force in the moving direction. That is, the elastic stopper 540 protrudes to one side of the second rear body 510 according to the thickness of the door 10 or is inserted into the inside of the second rear body 510 by compression of the third elastic member 550. Can be placed in a state.

In addition, a pair of auxiliary sensing units 420 for detecting whether the door 10 is opened or closed may be further electrically connected to the control unit 400. The auxiliary sensing units 420 may be respectively coupled to correspond to the rear surface of the door 10, and the auxiliary sensing units 420 may be electrically connected to the circuit unit 413 of the control unit 400. That is, when the auxiliary detection unit 420 detects the closing of the door 10, the control unit 400 may move the auxiliary stopper 501 and the elastic stopper 540 in the locking direction, and the auxiliary stopper 501 and It is possible to provide a double locking structure of the main stopper 301.

As a result, in the present invention, the door 10 can be switched to the locked or unlocked state without key operation, and the door 10 is switched to the locked state only by rotating the lever 21, so when loading and unloading luggage Convenience can be improved, and the hassle of having a key can be eliminated. In addition, since the door 10 is automatically switched to a locked state when the door 10 is closed, security can be improved through a double locking structure. That is, since the door 10 is switched to the locked state only by the closing operation, the risk of theft can be reduced in the process of unloading and delivering baggage.

Until now, a specific embodiment of the door opening and closing device according to the present invention has been described, but it is obvious that various implementation modifications are possible within the limit not departing from the scope of the present invention.

Therefore, the scope of the present invention is limited to the described embodiments and should not be transmitted, and should be determined by the claims to be described later, as well as the claims and equivalents.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not limiting, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and All changes or modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

1: loading box 10: door
20: locking bar 21: lever
100: front auxiliary locking unit 101: front auxiliary locking groove
110: front side auxiliary body 111: front passage
120: locking member 121: locking end
130: first elastic member 200: front locking unit
201: locking groove 210: front body
211: rear passage 220: input
300: rear locking unit 301: main stopper
302: hinge shaft 310: first rear body
311: installation space 312: first guide protrusion
320: first drive motor 330: first power transmission unit
331: first rotating member 331a: first eccentric protrusion
332: operating member 332a: inclined hole
332b: first guide groove 332c: first connection hole
340: power supply 400: control unit
410: main sensing unit 411: sensing protrusion
412: second elastic member 413: circuit part
420: auxiliary sensing unit 500: auxiliary locking unit
501: auxiliary stopper 501: second connection hole
502: second guide groove 503: third guide protrusion
510: second rear body 520: second drive motor
530: second power transmission unit 531: second rotating member
531a: second eccentric protrusion 532: drive gear
533: driven gear 540: elastic stopper
541: third guide groove 550: third elastic member

Claims (10)

A pair of doors provided to be able to rotate and open based on a vertical rotation center at both sides of the entrance of the loading box;
A pair of locking bars that are vertically coupled to the front of the door so as to be rotatable in a locking or unlocking direction based on a vertical rotation center, and having a lever on one side rotatable in a locking or unlocking direction;
A front locking unit coupled to the front of any one of the pair of doors and having a locking groove formed thereon so that the lever is inserted and released through the upper portion;
A rear locking unit coupled to a rear surface of the door to which the front locking unit is coupled, and having a main stopper configured to advance to the locking groove through the door or retreat to the rear of the locking groove; And
It detects whether the lever is inserted into the locking groove, and when the lever is inserted into the locking groove, the main stopper is moved forward and positioned above the lever, and when a lock release signal is input, the main stopper is retracted. Including; a control unit for releasing the jamming of the lever,
An auxiliary locking unit coupled to the rear of the door to which the front locking unit is coupled while being electrically connected to the control unit, and having an auxiliary stopper to be forward or retractable to the side, and in a state electrically connected to the control unit. It is coupled to correspond to the rear surface of the door further comprising a pair of auxiliary detection units for detecting whether the door is opened or closed,
When the door is closed, the control unit advances the auxiliary stopper and is positioned at the rear of the door corresponding to the door to which the front locking unit is coupled, and when the lock release signal is input, the auxiliary stopper is retracted to release the locking. Door opening and closing device, characterized in that to let. The method of claim 1,
The front locking unit is coupled to the front of the door, the locking groove is formed on the upper portion so that the lever is inserted and released, and a front body having a rear passage formed at the rear to pass the main stopper, and
Door opening and closing device, characterized in that further comprising an input unit on the front of the front body to enable the input of the lock release signal. The method of claim 1,
The rear locking unit includes a first rear main body in which the main stopper is provided to move forward and retract through the front side, a first driving motor coupled to an internal installation space of the first rear main body, and a drive shaft of the first driving motor And a first power transmission unit for mechanically connecting the rear end of the main stopper and a power supply unit for supplying power to the first driving motor,
The first power transmission unit is a first rotating member rotatably connected to the driving shaft of the first driving motor in a locking or unlocking direction, and a lower end is mechanically connected to the first rotating member, A door opening/closing device comprising an operation member capable of raising and lowering to a unlocked position, an upper end mechanically connected to a rear end of the main stopper, and moving the main stopper in a locking or unlocking direction by an elevation operation. The method of claim 3,
A hinge shaft forming a horizontal center of rotation is provided at the rear end of the main stopper,
A door opening and closing device, wherein the hinge shaft is laterally coupled to the operation member, and an inclined hole extending downwardly inclined to the rear is formed through the side. The method of claim 3,
A first guide protrusion protruding rearward is provided in the front of the installation space,
The operation member is a door opening and closing device, characterized in that the first guide groove is further formed through the front and rear so that the first guide protrusion is inserted, and a first guide groove having a length along an up-down direction. The method of claim 3,
At one side of the first rotating member, a first eccentric protrusion capable of eccentric rotation in a locking or unlocking direction protrudes forward,
The door opening and closing device, characterized in that the first connection hole is formed through the front and rear through the operation member so that the first eccentric protrusion is rotatably inserted. The method of claim 1,
The control unit is further electrically connected to a main sensing unit for detecting whether the lever is inserted into the locking groove,
The main sensing unit is provided to protrude or insert from the rear surface of the locking groove, a sensing protrusion inserted rearward when the lever is inserted into the locking groove, a second elastic member elastically supporting the rear end of the sensing protrusion forward, and And a circuit part electrically connected to the control unit and detecting whether the sensing protrusion is protruding or inserted. delete The method of claim 1,
The auxiliary locking unit includes a second rear main body in which the auxiliary stopper is provided to move forward and retract through one side, a second driving motor coupled to an internal installation space of the second rear main body, and the second driving motor. Further comprising a second power transmission unit mechanically connecting the rear end of the drive shaft and the auxiliary stopper,
The second power transmission unit is rotatably connected to the drive shaft of the second driving motor in a locking or unlocking direction, and one side is mechanically connected to the rear end of the auxiliary stopper, and locks or locks the auxiliary stopper by a rotation operation. Door opening and closing device, characterized in that it comprises a second rotating member to move in the release direction. The method of claim 1,
Further comprising a front auxiliary locking unit coupled to the front of the door corresponding to the door to which the front locking unit is coupled, and having a front auxiliary locking groove formed thereon so that the lever is inserted and released through the upper portion,
The front auxiliary locking unit is coupled to the front of the door, the front auxiliary locking groove is formed on the upper side so that the lever is inserted and released, and a front auxiliary body having a front passage formed on the front side, and the front side Further provided with a locking member that is rotatably installed based on the horizontal rotation center formed on the front side of the auxiliary body, and the upper end is inserted into the front auxiliary locking groove through the front passage or detachable to the front of the front auxiliary locking groove. And
A first elastic member for elastically supporting the lower end of the locking member forward with respect to the horizontal rotation center is further provided on the front side of the front auxiliary body, and the upper end of the locking member protrudes rearwardly through the front passage. A door opening and closing device, characterized in that further comprising a locking end capable of being inserted into the front auxiliary locking groove or detachable to the front of the front auxiliary locking groove.

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