KR20210126963A - Industrial door - Google Patents

Abstract

The present invention relates to an industrial door which is conveniently operated and can improve security. According to an embodiment of the present invention, the industrial door comprises: a body unit including a pair of doors; an operating unit mounted on the body unit and provided with a gear and a handle connected to a shaft of the gear to rotate the gear by an operation of the handle; a first locking unit engaged with the gear provided on the operating unit to move vertically, extended above the body unit, and provided with a first locking member of which one end appears above the body unit; a second locking unit engaged with the gear provided on the operating unit to move vertically, extended below the body unit, and provided with a second locking member of which one end appears below the body unit; and a third locking unit engaged with the gear provided on the operating unit to move to the left and right, extended in the horizontal direction of the body unit, and provided with a third locking member of which one end appears to the sides of the doors.

Description

Industrial door

The present invention relates to an industrial door, and more particularly, to an industrial door with improved convenience and security by enabling locking operation at several points with a simple operation.

In general, a locking device for an industrial door is a method of locking a double door and an upper and lower door respectively by using a latch. In these industrial doors, the latches are exposed on the outside of the door, and when the door is opened, several latches are released to release the lock, and when the door is closed again, each latch must be rotated to adjust the position and fix the door. .

In order to solve this inconvenience, an automatic or semi-automatic industrial door has been proposed. In Republic of Korea Registered Utility Model No. 20-0286607, a door frame with a certain width is installed in a multi-layer structure, and these are connected to the guide rollers built in the guide box. An industrial door with a fixed block installed and connected to the condensed screw shaft of the drive motor is presented.

According to the prior art, if only the central door is moved, there is an advantage of having a structure in which continuous doors installed on the left and right can sequentially move from side to side. However, since this is a structure that opens and closes the door in the form of a sliding door, there are not many locking points, so security may be deteriorated. Therefore, there is a need for an industrial door that can satisfy both convenience and security.

Republic of Korea Registered Utility Model No. 20-0286607 (2002.08.08)

The present invention provides an industrial door capable of simultaneously performing the locking operation of the upper, lower and side portions by the operation of a handle for convenient operation and improving security.

Other detailed objects of the present invention will be clearly grasped and understood by experts or researchers in the art through the detailed contents described below.

In order to solve the above problems, the present invention is provided with a body portion including a pair of doors, a handle mounted on the body portion and connected to the gear and the shaft of the gear, and the gear is operated by the operation of the handle. A first locking part having a rotating operation part, a first locking member which moves up and down in engagement with the gear provided in the operation part, extends to the upper part of the body part, and has one end protruding and protruding from the upper part of the body part, the operation part A second locking part having a second locking member that meshes with the gear provided in the upper and lower parts, extends to the lower part of the body part, and has a second locking member having one end protruding and protruding from the lower part of the body part, and left and right in engagement with the gear provided in the operation part It moves to and extends in the horizontal direction of the body, one end proposes an industrial door including a third locking member having a third locking member protruding and protruding from the side of the door.

The operation unit includes a gear unit having a gear rotating on an axis, a handle unit having a handle coupled to the shaft of the gear unit, and a handle unit configured to rotate the gear by the operation of the handle and mounted to surround the gear unit, and a support unit for supporting an operating state when the first locking part, the second locking part, and the third locking part are operated.

Here, the support unit includes a first plate in a shape surrounding the gear and in which a groove for limiting a movement length is formed while guiding the movement of the first locking part, and is arranged to be adjacent to the first plate, A second plate in which a groove into which an elastic member is inserted is formed on the upper and lower surfaces, and a third plate disposed adjacent to and in contact with the second plate and having a groove for limiting the movement length while guiding the movement of the second locking part. can

On the other hand, the first locking part or the second locking part is coupled to an operation member that is engaged with one side of the gear and moves linearly by rotation of the gear, an extension member extending from the operation member, and an end of the extension member, and one end is the A locking member configured to be retractable to the outside of the main body and an elastic interposed between the operating member and the operating unit to return the operating member when the force is removed from the handle so that one end of the locking member protrudes from the body member may be included.

In addition, it may further include a locking portion coupled to the lower end of the body portion rotatably to maintain a state in which one end of the second locking member enters the body portion.

According to an embodiment of the present invention, the operation of the first locking part responsible for locking the upper part of the door by the operation of the handle, the second locking part responsible for locking the lower part of the door, and the third locking part responsible for locking the side of the door are performed. By allowing them to be performed at the same time, operation is convenient and security can be improved.

Meanwhile, a support unit for guiding or supporting an operating state when the first to third locking units are operated may be provided in the operating unit to stably operate the first to third locking units.

In addition, the support unit includes three plates, the first plate guides the movement of the first locking part, the third plate guides the movement of the second locking part, and the first locking part and the second locking part are provided on the second plate. By mounting an elastic member for performing negative recovery so that each plate performs a separate function, the support unit can be easily manufactured and the function of the support unit can be faithfully performed.

Meanwhile, in the first locking part and the second locking part, power is transmitted to the locking member through the operation member and the extension member, and the locking member is returned to the locked position by the elastic member, so that operation is convenient.

On the other hand, it is possible to prevent a phenomenon in which the locking member of the second locking member is dragged to the floor when the door is opened and closed by providing the locking part for supporting the second locking member during operation.

Other effects of the present invention will be clearly understood and understood by an expert or researcher in the art through the specific details described below, or during the course of carrying out the present invention.

1 is a view showing an industrial door according to an embodiment of the present invention.
Figure 2 is a conceptual view showing the main operating portion of the industrial door according to the embodiment shown in Figure 1 from the front.
Figure 3 is a view showing each plate constituting the support unit employed in the embodiment shown in Figure 1;
Figure 4 is a conceptual view showing the main operating part of the industrial door employed in the embodiment shown in Figure 1 from the side.
5 is a conceptual diagram illustrating the operation of the industrial door according to the embodiment shown in FIG.
6 is a conceptual diagram illustrating the operation of the locking part of the industrial door according to the embodiment shown in FIG.
7 and 8 are conceptual views illustrating the operation of a locking part of another type.

The features and effects of the present invention described above will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. will be able Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

Hereinafter, an industrial door according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present specification, the same and similar reference numerals are assigned to the same and similar components even in different embodiments, and the description is replaced with the first description.

The industrial door according to an embodiment of the present invention includes a body portion, an operation portion, a first locking portion, a second locking portion, and a third locking portion.

The body portion comprises a pair of doors. A pair of doors is hinged on the left and right sides, respectively, and opens from the center with the hinge as the axis.

The operation unit is mounted on the body and has a gear having teeth formed on the outer periphery and a handle connected to the shaft of the gear, and the gear is rotated by the operation of the handle.

The first locking unit moves up and down in engagement with the gear provided in the operation unit. The first locking portion extends to the upper portion of the body portion and has a first locking member protruding and protruding from the upper portion of the body portion at an end thereof to lock the upper portion of the door.

Meanwhile, the second locking unit moves up and down in engagement with the gear provided in the operation unit. The second locking unit is provided with a second locking member that extends to the lower portion of the body and protrudes and protrudes from the lower portion of the body to lock the lower portion of the door.

In addition, the third locking unit is engaged with the gear provided in the operation unit to move left and right. The third locking member extends in the horizontal direction of the body portion and includes a third locking member protruding from the side of the door to lock the door and the door.

Accordingly, by the operation of the handle, the first locking part, the second locking part, and the third locking part are engaged with the gear, and the upper, lower and side parts of the door can be unlocked while simultaneously operating, so the operation is convenient and the security can be improved. have.

Hereinafter, the configuration of each part will be described in detail with reference to the drawings.

1 is a view showing an industrial door according to an embodiment of the present invention, FIG. 2 is a conceptual diagram showing a main operating part of the industrial door according to the embodiment shown in FIG. 1 from the front, and FIG. 4 is shown in FIG. It is a conceptual diagram showing the main operating part of the industrial door employed in the embodiment from the side.

The body part 1 forms the exterior of the industrial door 100 and each of the components to be described later is mounted. The body portion (1) is made to include a pair of doors (11), each door (11) is opened while being spread out around the center.

The door 11 has a certain thickness, an empty space is formed inside, and the operating part 2, the first locking part 3, the second locking part 4, and the third in the central part where both doors 11 meet. The configurations of the locking part 5 are arranged.

In the process of manipulating the door 11 to maintain or open the locked state, the operating unit 2 operates the first locking part 3, the second locking part 4 and the third locking part 5. Or as a configuration to support, it includes a gear unit 21, a handle unit 22, and a support unit (23).

The gear unit 21 includes a gear 211 that rotates on an axis. Here, the gear 211 has a large thickness so that the three operation members 31 , 41 , 51 provided in each locking unit can be coupled thereto. Meanwhile, the handle unit 22 has a handle 221 coupled to the shaft of the gear 211 and rotates the gear 211 by the operation of the handle 221 .

Accordingly, when the gear 211 rotates by operating the handle 221 , the operating members of each locking part move in different directions, and the locking part may be unlocked.

The support unit 23 is mounted to surround the periphery of the gear unit 21 and supports the operating state when the first locking part 3 to the third locking part 5 operate. In this embodiment, the support unit 23 has a shape in which three plates of a first plate 231 , a second plate 232 , and a third plate 233 are overlapped.

3, each plate constituting the support unit 23 employed in the embodiment of the present invention is shown. The upper part of the drawing is the plate of the right door, and the lower part is the plate of the left door.

On the other hand, Figure 2 shows the form in which each plate is arranged on the industrial door. For convenience of explanation and identification, only the first plate 231 and the second plate 232 are shown on the left door in the drawing, and the right door Although only the second plate 232 and the third plate 233 are shown in the figure, they are actually installed on three plates, the left door and the right door, respectively.

The first plate 231 has a shape surrounding the periphery of the gear 211 and a groove 231a for limiting the movement length while guiding the movement of the first locking part 3 is formed. Referring to Figure 3a, the first plate 231 is basically made of a flat plate shape, a space is formed in the center lower side so that the gear 211 can be arranged, and the space is provided so that the third locking part 5 is arranged in the upper part of one side. is formed

In addition, a passage for passing the first operation member 31 of the first locking part 3 from the upper side of the opposite side is formed, leading to the space below the center. On the other hand, a groove 231a connected to the passage is formed so that the first locking member 33 having a corresponding shape is guided thereto so that the moving distance can be limited.

The second plate 232 is disposed to be adjacent to the first plate 231 and is formed with grooves 232a and 232b into which the elastic member is inserted at upper and lower surfaces. Referring to FIG. 3B , the second plate 232 is also basically formed in a flat plate shape, and the space in which the third locking part 5 is disposed and the space in which the gear 211 is disposed are connected. On the other hand, grooves 232a and 232b facing inward from the upper and lower edges are respectively formed. An elastic member may be inserted into the grooves 232a and 232b, respectively, and the first locking member 33 and the second locking member 43 may be elastically supported, respectively.

The third plate 233 is disposed adjacent to the second plate 232 and has a groove 233a for limiting the movement length while guiding the movement of the second locking part 4 . Referring to FIG. 3C , the third plate 233 is also basically made of a flat plate shape like the first plate 231 and the second plate 232 , and a space in which the gear 211 is disposed and the third locking part 5 . Spaces in which are arranged are formed respectively.

In addition, a passage for passing the second operation member 41 of the second locking part 4 from the lower portion is formed, leading to the space below the center. On the other hand, the groove 233a is formed over the passage and the space so that the second locking member 43 having a shape corresponding thereto is guided, so that the moving distance can be limited.

Accordingly, the first locking member 33 , the second locking member 43 , and the third locking member 52 do not interfere with each other and at the same time, an equal force can be applied to the gear 211 .

The above-described first plate 231 to third plate 233 may be coupled through a binding member or coupled by welding. Meanwhile, the combined thickness of the three plates may be approximately equal to the size of the thickness of the gear 211 .

In addition, the first plate 231 , the second plate 232 , and the third plate 233 of the left door and the right door function the same as each other and have a symmetrical shape.

The first locking part 3 is configured to lock the upper part of the door 11 so that the door 11 does not move, and a first operation member 31 , a first extension member 32 , and a first lock member 33 . and a first elastic member 34 .

The first operation member 31 is engaged with one side of the gear 211 and is configured to linearly move according to the rotation of the gear 211, and is extended from the base body 311 and the base body 311 and has a serrated end. and a driving body 312 .

Specifically, the driving body 312 is eccentrically coupled to one side from the base body 311 so as to be guided by the first plate 231 , and is bent in a 'L' shape so that the teeth on the outside of the gear 211 engage with each other. are joined so as to Meanwhile, the protrusion 312a formed on the driving body 312 is located inside the groove 231a formed in the first plate 231 , and the driving body 312 is movable in a limited manner.

For the coupling of the driving body 312 , an eccentric mounting seat is provided on the base body 311 , and the driving body 312 eccentric from the base body 311 is coupled to one end of the gear 211 in the thickness direction.

The first extension member 32 extends upwardly from the first operation member 31 . Specifically, the first extension member 32 is coupled to the base body 311 of the first operation member 31 and extends upward. The first extension member 32 may have a hollow tube shape.

The first locking member 33 is coupled to an end of the first extension member 32 and has one end configured to be retractable to the outside of the body portion 1 . The locking member 331 forming one end of the first locking member 33 may have one side of an inclined surface and may be retractable from the locking bundle 332 by a spring action when there is an external force.

The first elastic member 34 is interposed between the first operating member 31 and the operating part 2 to restore the first operating member 31 when the force on the handle 221 is removed to restore the first locking member ( 33) acts to protrude from the body portion (1). Specifically, the first elastic member 34 is disposed between the base body 311 of the first operation member 31 and the upper groove 232a of the second plate 232 . A spring may be employed as the first elastic member 34 , and a protrusion for fixing one end of the first elastic member 34 may be formed in the base body 311 .

The second locking part 4 is configured to lock the lower portion of the door 11 so that the door 11 does not move, and a second operation member 41 , a second extension member 42 , and a second lock member 43 . and a second elastic member 44 , and the overall operation is the same as that of the first locking part 3 .

Accordingly, the first operating member 31 , the first extension member 32 , and the first locking member 33 of the first locking part 3 are not arranged for each component of the second locking part 4 . ) and the description of the first elastic member 34 may be applied.

However, the base body 411 of the second operating member 41 is provided with a mounting seat to which the driving body 412 is coupled at an eccentric position opposite to the base body 311 of the first operating member 31 . Accordingly, the eccentric position of the driving body 412 is also opposite. Meanwhile, the driving body 412 of the second operating member 41 has a '1' shape to engage the gear 211 and the door in the inner direction.

Accordingly, the first operation member 31 and the second operation member 41 are engaged in a diagonal direction to each other, so that the force applied to the gear 211 can be distributed, and the gear 211 can rotate smoothly. there will be

The protrusion 412a formed on the driving body 412 of the second operation member 41 is located inside the groove 233a formed in the third plate 233 and the driving body 412 is movable in a limited manner.

Meanwhile, the second elastic member 44 is interposed between the second operating member 41 and the operating unit 2 . When described in detail with reference to the drawings, the second elastic member 44 is disposed between the base body 411 of the second operation member 41 and the lower groove 232b of the second plate 232 .

In addition, a pin 433 protruding to the outside of the lock bundle 432 may be provided on the lock member 431 forming one end of the second lock member 43 . Accordingly, it is possible to apply a force to the pin 433 so that the locking member 431 protrudes and retracts.

The third locking part 5 is configured to connect and lock both doors 11 , and includes a third operation member 51 and a third locking member 52 .

The third operation member 51 meshes with one side of the gear 211 and moves linearly by rotation of the gear 211, and is formed in a 'ㅗ' shape and has a toothed end. Specifically, the third operation member 51 has teeth formed on one surface of the third operation member 51 extending in the horizontal direction, and the teeth are engaged with the upper side of the gear 211 in the thickness direction of the gear 211 . When viewed, they are joined at the midpoint.

Accordingly, the gear 211 is sequentially coupled to the first operating member 31, the third operating member 51, and the second operating member 41, and when the handle 221 is turned, the first operating member 31 is In the downward direction, the third operation member 51 moves in the right direction and the second operation member 41 simultaneously moves in the upward direction.

The third locking member 52 is coupled to one side of the third operating member 51 and moves together according to the movement of the third operating member 51 , and one end thereof is configured to be retractable and retractable to the outside of the door. The locking member 521 constituting one end of the third locking member 52 may have an inclined surface on one side and may be retractable by itself by a spring action when there is an external force.

As described above, upper and lower and side locks are possible by simple operation by the first locking part 3 , the second locking part 4 , the third locking part 5 and the operation part 2 .

Meanwhile, it may further include a locking part 6 rotatably coupled to the lower end of the body part 1 and maintaining a state in which the second locking member 43 enters the body part 1 .

The locking part 6 includes a support member 61 and a locking member 62 . The support member 61 is installed in the space inside the lower part of the door 11 and the locking member 62 is coupled to the support member 61 to enable axial rotation. The locking part 6 is installed for each door at a position where both doors abut.

Referring to FIG. 6 , the locking member 62 extends from the locking member 621 and the locking member 621 caught on the second locking member 43 and is connected from one end of the extension 622 and the extension 622 to which the rotation shaft is coupled. One side is made to include a protrusion 623 protruding to the outside of the door. The protrusion 623 protrudes to the outside of the door through a hole (not shown) formed in the thickness surface of the door. A spring is interposed between the latch 621 and the door.

On the other hand, in the portion extending from the extension 622 to the protrusion 623 , the width of one end of the extension 622 is longer than the width of the protrusion, thereby forming a step 622a. This step 622a limits the rotation of the locking member 62 by contacting the inner side of the thickness surface of the door when the locking member 62 rotates.

Accordingly, in the closed state of the door, the protrusion 623 is pressed against the thickness of the door so that the locking member 621 is not caught on the second locking member 43, and in the open state, the locking member 621 is raised to the second locking member. It can be rotated toward (43) to be caught by the second locking member (43). At this time, excessive rotation of the engaging member 62 is prevented by the step 622a formed between the extension 622 and the protrusion 623 .

Meanwhile, the locking part 6 may adopt the form shown in FIGS. 7 and 8 .

7 and 8 , the protrusion of the locking part 6 includes an upper first protrusion 623a and a lower second protrusion 623b, and a rotating member 63 is further provided. .

The first protrusion 623a does not protrude to the outside of the door, and as the locking member 62 rotates, the first protrusion 623a presses the rotating member 63 so that the rotating member 63 protrudes outside the door. do. In this case, the end of the second protrusion 623b may contact the inner side of the thickness surface of the door to prevent excessive rotation of the engaging member 62 and the rotating member 63 .

The rotating member 63 is installed on the door 11 to enable shaft rotation and protrudes to the outside of the door by the pressure of the first protrusion 623a. As the rotating member 63 is pressed against the thickness of the door or the pressed state is released, the locking member 62 rotates counterclockwise or clockwise.

Meanwhile, a guide member 64 may be further provided to guide the locking member 62 and the rotating member 63 . The guide member 64 guides the rotation of the first protrusion 623a and the rotating member 63 while forming a space through which both the first protrusion 623a and the rotating member 63 can pass. For example, as shown, the pillars may have a shape in which each of the pillars is erected at the points corresponding to the vertices of the quadrilateral.

The industrial door constructed in this way operates as follows.

5 is a conceptual diagram illustrating the operation of an industrial door according to an embodiment of the present invention, FIG. 6 is a conceptual diagram illustrating the operation of a locking part of an industrial door according to an embodiment of the present invention, and FIGS. 7 and 8 are other types of locking It is a conceptual diagram showing the operation of negative.

First, when the handle 221 of the door 11 is lowered in the downward direction, the locks 331 , 431 , 521 fixing the three directions between the two doors and the top and bottom of the door are simultaneously entered into the door and the lock is released. Accordingly, it is convenient to release the locking state in three directions with one operation.

When the door 11 is opened in the unlocked state and the handle 221 is released, the lowered handle 221 is automatically raised by the first elastic member 34 and the second elastic member 44 to return to the original state. When closing the door, you can push the door as it is, and when it returns to its original state, the three-way locking latches (331, 431, 521) protruding out of the door automatically enter and exit by the action of the spring to lock and maintain the locked state. Accordingly, a lot of motion is not required to open and close the door.

On the other hand, when the locking part 6 is provided, it is possible to prevent the locking member 431 of the second locking part 4 from being dragged to the floor even when the handle 221 is released when the door 11 is opened and closed.

When this is described with reference to FIG. 6 , first, in the initial state of the door 11 closed and the handle 221 raised, the locking part 6 is released from the locking member 431 (see FIG. 6a ). Here, when the handle 221 is lowered to open the door, the door is closed, but the second locking member 43 rises (refer to FIG. 6B ).

When the state of lowering the handle 221 is completed, the second locking member 43 is in a state in which it is raised to the maximum, and when the door is opened in this state, the locking member 62 releases the state in which the protrusion 623 is pressed against the door. It rotates and the latch 621 is caught by the pin 433 (refer to FIG. 6c).

Next, even if the door is opened and the handle 221 is released and the handle 221 is raised to its original position, the lock bundle 432 comes down, but the stopper 431 is still fixed thereon. Accordingly, the second locking member 43 maintains the state in which the locking member 431 is inserted (see FIG. 6D ).

Next, when the door is closed, the protrusion 623 of the locking member 62 is pressed into the door (thick surface), the locking member 621 is separated from the pin 433, and the locking member 431 comes down (see FIG. 6e ). ).

On the other hand, in the case of adopting the other type of locking part 6, the overall content is as described above, and in detail, it operates as follows. When the state in which the handle 221 is lowered is completed, the second locking member 43 is in a state in which it is raised to the maximum, and when the door is opened in this state, the rotation member 63 is released from the pressed state on the door and the locking member 62 is rotated. and the latch 621 is caught and fixed to the pin 433 (see FIG. 7c ). On the other hand, when the door is closed, the rotating member 63 is pressed into the door (thick surface) and presses the first protrusion 623a. Accordingly, the locking member 621 is separated from the pin 433 and the locking member 431 is lowered. come (see Fig. 8b).

As described above, the industrial door according to the embodiment of the present invention is not limited to the configuration and method of the embodiments described above, but all or part of each embodiment is selective so that various modifications can be made. It may be configured in combination with .

Although the detailed description of the present invention described above has been described with reference to a preferred embodiment of the present invention, those skilled in the art or those having ordinary knowledge in the art will have the spirit of the present invention described in the claims to be described later. And it will be understood that various modifications and variations of the present invention can be made without departing from the technical scope.

1: body part 11: door
2: operation part
21: gear unit 211: gear
22: handle unit 221: handle
23: support unit
231: first plate 231a: groove
232: second plate 232a, 232b: groove
233: third plate 233a: groove
3: first locking part
31: first operation member 311: base body 312: driving body 312a: projection
32: first extension member
33: first locking member 331: locking member 332: locking bundle
34: first elastic member
4: second locking part
41: second operation member 411: base body 412: driving body 412a: protrusion
42: second extension member
43: second locking member 431: locking member 432: locking bundle 433: pin
44: second elastic member
5: third locking part 51: third operation member 52: third locking member 521: locking member
6: catch part
61: support member 62: locking member 63: rotating member 64: guide member
621: catch 622: extension 623: protrusion
622a: step 623a: first protrusion 623b: second protrusion
100: industrial door

Claims (5)

A body comprising a pair of doors,
an operation unit mounted on the body portion and provided with a handle connected to the gear and the shaft of the gear to rotate the gear by the operation of the handle;
A first locking part having a first locking member that moves up and down in engagement with the gear provided in the operation part, extends to the upper part of the body part, and has one end protruding and protruding from the upper part of the body part;
A second locking part having a second locking member that moves up and down in engagement with the gear provided in the operation part, extends to the lower part of the body part, and has one end protruding and protruding from the lower part of the body part;
A third locking part having a third locking member that moves left and right in engagement with the gear provided in the operation part, extends in the horizontal direction of the body part, and has one end protruding and protruding from the side of the door
Industrial door comprising According to claim 1,
The operation unit,
A gear unit having a gear rotating shaft,
a handle unit having a handle coupled to the shaft of the gear unit and rotating the gear by the operation of the handle;
A support unit mounted to surround the gear unit and supporting an operating state when the first locking part, the second locking part and the third locking part operate
Industrial door comprising 3. The method of claim 2,
The support unit is
a first plate having a shape surrounding the gear and having a groove for limiting the movement length while guiding the movement of the first locking part;
a second plate disposed adjacent to and in contact with the first plate and having grooves formed on upper and lower surfaces into which an elastic member is inserted; and
A third plate disposed adjacent to the second plate and having a groove for limiting the movement length while guiding the movement of the second locking part
Industrial door comprising According to claim 1,
The first locking part or the second locking part,
An operating member engaged with one side of the gear and moving linearly by rotation of the gear;
an extension member extending from the operation member;
A locking member coupled to an end of the extension member and configured to have one end retractable to the outside of the main body;
An elastic member interposed between the actuating member and the actuating part to restore the actuating member when the force is removed from the handle so that one end of the locking member protrudes from the body
Industrial door comprising According to claim 1,
A locking part that is rotatably coupled to the lower end of the body and maintains a state in which one end of the second locking member enters the body.
Industrial door further comprising.

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