KR102427798B1 - Latch that can be fixed door structure and door assembly comprising the same - Google Patents

Abstract

The present invention is disposed on the door that divides the inside and outside to fix the structure in close contact with the door, the housing comprising: a housing connected to a first structure and including a receiving part for providing an accommodation space; A joint portion connected to the housing and the fixing pin, including a plurality of joint structures connected to each other by a plurality of connecting pins; a first elastic body having both ends connected to the plurality of connecting pins to generate an elastic force when the plurality of joint structures are rotated; a pressing member for pressing and supporting the second structure toward the first structure by an elastic force at one end of the joint part; a rotation plate in which a plurality of joint structures at the other end of the joint are drawn in or drawn out into the receiving space during rotation; and a reciprocating block that is pressed by the rotation plate by the retraction of the rotation plate and moves to the inside of the accommodation space.

Description

A latch for fixing a door structure and a door assembly including the same

The present invention relates to a latch that is disposed on the side of a door dividing an interior and exterior to closely fix a structure to the door, and to a latch for fixing the door structure and a door including the same.

In general, a plurality of quick access doors are installed inside and outside the fuselage of an aircraft. Such a quick access door is hinged to one side end of the door frame or is configured to be completely separated from the door frame, and typically includes a latch, which is one of the opening and closing devices. The latch quickly generates a binding force between the door frame and the quick access door during the locking operation, and the latch portion of the latch quickly releases from the coupling hole of the door frame according to the user's opening operation. Such latches include a sliding type in which the clamp is moved in the axial direction when the handle is pulled, and a push button type in which the clamp rotates at a finite angle of rotation along the hinge axis when the opening and locking buttons are pressed. Here, in the case of a push-button latch, it is installed in many places of the aircraft body, such as a maintenance panel, a canopy, and a cover of an engine and device. However, in the conventional latch, a configuration that is operated at a finite rotation angle in a locked and unlocked state is exposed to the outside, and interference with other components may occur and may be vulnerable to corrosion.

Korean Patent Laid-Open Publication No. 10-2003-0024393 (March 26, 2003)

An embodiment of the present invention aims to prevent the formation of ice in the housing by preventing the inflow and generation of moisture into the housing, thereby enabling normal rotation within a predetermined rotation section in the operation of the latch.

An embodiment of the present invention aims to ensure that, in changing the locking and unlocking state, the rotation plate, which is moved in and out of the housing while being drawn in and out, is not exposed to the outside of the cabin.

An embodiment of the present invention aims to remove the air pressure generated by the movable configuration as an obstacle to the state change in the change of the locking and unlocking state.

The present invention is disposed on the door that divides the inside and outside to fix the structure in close contact with the door, the housing comprising: a housing connected to a first structure and including a receiving part for providing an accommodation space; A joint portion connected to the housing and the fixing pin, including a plurality of joint structures connected to each other by a plurality of connecting pins; a first elastic body having both ends connected to the plurality of connecting pins to generate an elastic force when the plurality of joint structures are rotated; a pressing member for pressing and supporting the second structure toward the first structure by an elastic force at one end of the joint part; a rotation plate in which a plurality of joint structures at the other end of the joint are drawn in or drawn out into the receiving space during rotation; and a reciprocating block that is pressed by the rotation plate by the retraction of the rotation plate and moves to the inside of the accommodation space.

And, it may further include a second elastic body for returning the reciprocating block to the origin when the rotation plate is withdrawn.

In addition, the elastic force of the first elastic body may act greater than the elastic force of the second elastic body.

In addition, the housing may include an opening into which a part of the joint part is inserted so that a part of the joint part is exposed to one side of the housing and the other part is exposed to the other side of the housing.

In addition, formed to correspond to the periphery of the opening, at least one of the one side and the other side may further include a sealing portion for blocking the inflow of fluid between the one side and the other side in a locked state.

In addition, the joint portion, a first joint exposed to one side of the housing and connected to the pressing member; a third joint exposed to the other side of the housing and connected to the rotation plate; and a second joint connecting the first joint and the third joint.

In addition, the accommodation unit may include a guide surface formed as a curved surface along the movement trajectory of the rotation plate when the rotation plate is drawn into the accommodation space.

In addition, the inner surface of the accommodating part may be slid with the side surface of the reciprocating block and extend linearly in one direction so that the reciprocating block can be linearly reciprocated.

In addition, the reciprocating block may be moved in one direction by the elastic force of the first elastic body, and may be moved in the opposite direction to the other side by the elastic force of the second elastic body to reciprocate within the accommodating part.

In addition, the housing may discharge one or more exhaust holes for maintaining the air pressure in the accommodation space equal to atmospheric pressure by allowing the air accommodated in the accommodation space to flow into and out of the accommodation space.

In addition, the total of the fluid passage and cross-sectional area of the exhaust hole may be designed to increase in proportion to the speed at which the reciprocating block enters the receiving space.

In addition, the exhaust hole is formed in a circular shape and has a tapered shape in which the diameter decreases while extending from the inside of the accommodation space to the outer surface side of the accommodation part, and the fluid passage cross-sectional area may be the cross-sectional area of the exhaust hole formed on the outer surface side. .

In addition, the exhaust hole is formed in a circular shape, and may have a tapered shape in which a diameter is reduced while extending from the inside of the receiving space to the outside of the receiving space.

In addition, the exhaust hole may be formed on an area exposed to the receiving space in a state in which the reciprocating block enters the receiving space to the maximum.

In addition, the exhaust hole includes a plurality, and the plurality of exhaust holes are disposed at different positions in the vertical direction to ventilate the air in the accommodation space through convection according to the temperature difference.

a first structure partitioning the first space and the second space and having an installation hole; a second structure positioned in one of the first space and the second space and arranged to be in contact with the first structure; and a latch installed in the installation hole and configured to press and fix the second structure from the first structure, wherein the latch includes: a housing connected to the first structure and including a receiving part for providing an accommodation space; A joint portion connected to the housing and the fixing pin, including a plurality of joint structures connected to each other by a plurality of connecting pins; a first elastic body having both ends connected to the plurality of connecting pins to generate an elastic force when the plurality of joint structures are rotated; a pressing member for pressing and supporting the second structure toward the first structure by an elastic force at one end of the joint part; a rotation plate in which a plurality of joint structures at the other end of the joint are drawn in or drawn out into the receiving space during rotation; And a reciprocating block that is pressed by the rotation plate by the retraction of the rotation plate and moves to the inside of the accommodation space; including, a door assembly is provided.

And, by manipulating the rotation plate in one of the first space and the second space, it is possible to selectively press and fix the second structure to the first structure.

In addition, the housing may discharge one or more exhaust holes for maintaining the air pressure in the accommodation space equal to atmospheric pressure by allowing the air accommodated in the accommodation space to flow into and out of the accommodation space.

In addition, the total of the fluid passage and cross-sectional area of the exhaust hole may be designed to increase in proportion to the speed at which the reciprocating block enters the receiving space.

In addition, the exhaust hole is formed in a circular shape and has a tapered shape in which the diameter decreases while extending from the inside of the accommodation space to the outer surface side of the accommodation part, and the fluid passage cross-sectional area may be the cross-sectional area of the exhaust hole formed on the outer surface side. ,

In addition, the exhaust hole is formed in a circular shape, and may have a tapered shape in which a diameter is reduced while extending from the inside of the receiving space to the outside of the receiving space.

An embodiment of the present invention may provide a latch for blocking the inflow of moisture by arranging a reciprocating block corresponding to the receiving space of the housing.

An embodiment of the present invention may provide a latch that improves durability of the latch from corrosion by blocking the inflow and generation of moisture in the housing.

According to an embodiment of the present invention, in changing the locking and unlocking state, it is possible to provide a latch including a housing that can be concealed from the outside so that the movable component is not exposed to the outside.

An embodiment of the present invention may provide a latch with an air exhaust path to overcome the point that the air pressure generated by the movable configuration becomes a hindrance to the state change in the change of the locking and unlocking state. .

1 is a view showing a structure equipped with a latch according to an embodiment of the present invention, Figure 1 (a) is a view showing the inner side (unexposed side) of the structure, Figure 1 (b) is a view of the structure A drawing showing the outer side (exposed side),
2 is an exploded perspective view of a latch according to an embodiment of the present invention;
3 and 4 are perspective views of a latch according to an embodiment of the present invention;
Figure 5 is a view showing a housing according to an embodiment of the present invention, Figure 5 (a) is a perspective view of the housing, Figure 5 (b) is a perspective side cross-sectional view of the housing,
6 is a perspective view illustrating a latch except for a housing according to an embodiment of the present invention;
7 is a side view of a latch in a locked state according to an embodiment of the present invention;
8 is a side view of a latch in an unlocked state according to an embodiment of the present invention;
9 is a view showing the position of the reciprocating block according to whether the movable plate is movable according to an embodiment of the present invention. Figure 9 (b) is a view showing a state in which the reciprocating block is pressed by the movable plate in the unlocked state,
10 is a view showing that the exhaust hole is formed in a tapered shape according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.

In the description of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

The technical spirit of the present invention is determined by the claims, and the following examples are only one means for effectively explaining the technical spirit of the present invention to those of ordinary skill in the art to which the present invention belongs.

The latch 100 of the present invention and a door assembly including the same are used for the purpose of fixing a door structure to an exterior of an aircraft or a ship. In general, when the cabin is formed, the detachment of the structure fixed to the surface of the exterior can be manipulated from the outside of the cabin, and in some cases, the door can be removed from the exterior. Of course, since the operation from the inside and the outside is not limited by the above, it is natural that it is not limited thereto, and it is also natural to manipulate the dropping of a structure (eg, a door) fixed to the exterior surface from the inside of the cabin. It is possible. In order to achieve this purpose, the latch 100 should be quickly and easily intercepted, and the better the corrosion resistance, the more advantageous. Therefore, it can be protected from corrosion chemically through the discharge of moisture or surface treatment. The latch 100 and the door assembly including the latch 100 according to an embodiment of the present invention, which will be described below, also satisfy these conditions. In particular, it structurally includes features for achieving the above-mentioned purpose. Hereinafter, these features will be described with reference to FIGS. 1 to 10 .

1 is a view showing a structure equipped with a latch 100 according to an embodiment of the present invention, Figure 1 (a) is a view showing the inner surface of the structure, Figure 1 (b) is the outer surface of the structure the drawing shown,

Referring to FIGS. 1A and 1B , a latch 100 is coupled to a first structure 200 , and the latch 100 holds a second structure 300 from the first structure 200 . can be fixed. For this fixing, it is preferable that a plurality of latches 100 apply a fixing force to the second structure 300 as shown. Here, the first structure 200 or the second structure 300 may be a door. Since the door means a structure that can be opened so that the inside and outside communicate with each other, it may mean the first structure 200 or the second structure 300 .

On the other hand, the operation of the latch 100 may be operated from the inside of the space in which the inside and outside are divided. In order to explain such an operation, a more specific description of the structure of the latch 100 is required, and thus, components constituting the latch 100 will be described in detail with reference to FIG. 2 below.

2 is an exploded perspective view of a latch 100 according to an embodiment of the present invention.

Referring to FIG. 2 , the latch 100 includes a housing 120 , a joint part 110 , a rotation plate 140 , a pressing member 117 , and a reciprocating block 130 . Specifically, the housing 120 includes a plate 121 coupled to the first structure 200, an opening 121a through which the joint 110 passes, and a receiving part 122 through which the pressing member 117 is drawn in and out. include Furthermore, the housing 120 further includes a reinforcing rib (121b) for strength improvement and coupling with the joint part (110).

In addition, the joint part 110 may include a first joint 111 , a second joint 112 , and a third joint 113 . Here, the first joint 111 and the third joint 113 may be connected to the reinforcing rib 121b through the first fixing pin 111b and the second fixing pin 113a, respectively. In addition, the second joint 112 is connected to both ends of the first joint 111 and the third joint 113, respectively, so that the range of motion is dependent depending on the rotation range of the first joint 111 and the third joint 113. can be determined as In addition, the first joint 111 may be coupled to the pressing member 117 for pressing the second structure 300 to the first structure 200 .

The pressing member 117 may include a pressing head 117a, a pressing pin 117b, and a lock nut 117c. The pressing pin 117b may be formed in a pin type, so that a male screw is formed on the outer circumferential surface, and may be coupled to the intermittent hole 111a penetrating a portion of the first joint 111 . For example, the intermittent hole 111a may be coupled with a female screw formed on the inner circumferential surface. With this structure, the position of the pressing member 117 in the locked state of the latch 100 (the state in which the second structure 300 is pressed) can be selectively determined. When the predetermined position of the pressing member 117 is determined, the pressing pin 117b may be fixed to the first joint 111 by the lock nut 117c.

A pressing head 117a may be provided at one end of the pressing pin 117b. The pressing head 117a may perform pressing through direct contact with the second structure 300 . The pressing head 117a may be coupled to the pressing pin 117b in a universal joint manner. Even when the surface of the second structure 300, which is flat in the coupling structure, is provided to be slightly inclined, the second structure 300 may be pressed and fixed through surface contact in the pressing direction P.

Meanwhile, the first joint 111 may be connected to the second joint 112 . The first elastic body 150 is coupled to the second joint 112 to generate an elastic force according to the movement of the joint part 110 . Since the joint part 110 moves in conjunction with the first joint 111 , the second joint 112 and the third joint 113 , the elastic force is the first joint 111 , the second joint 112 and the third joint. It may be transmitted interlockingly to the joint 113 . For example, the elastic force may be transmitted to the third joint 113 connected to the second joint 112 . The elastic force transmitted to the third joint 113 rotates the third joint 113 and may also rotate the rotation plate 140 connected to the third joint.

The rotation plate 140 may be partially introduced into the receiving portion 122 by the above-described interlocking rotation. Here, the reciprocating block 130 disposed in the receiving portion 122 by the retracted rotation plate 140 may enter the receiving space 122a along the receiving space 122a in the extending direction. Here, the second elastic body 131 supports the reciprocating block 130 in the receiving space 122a, but the elastic force of the first elastic body 150 is greater than the elastic force of the second elastic body 131, so that the second elastic body ( 131) is compressed.

3 and 4 are perspective views of a latch 100 according to an embodiment of the present invention.

Referring to FIG. 3 , the joint part 110 may be fixed by a first fixing pin 111b and a second fixing pin 113a. Here, fixed does not mean sticking, but means that it is rotatably connected, but does not cause positional movement. That is, the first fixing pin 111b and the second fixing pin 113a pass through the reinforcing rib 121b formed in the housing 120 and are coupled to the joint part 110, and the rotation of the joint part 110 is the first fixing pin. (111b) and the second fixing pin (113a) is generated as a center, so that the rotation center of the first fixing pin (111b) and the second fixing pin (113a) does not move means that only rotation occurs.

The first fixing pin 111b may be connected to the first joint 111 of the joint part 110 , and the second fixing pin 113a may be connected to the third joint 113 of the joint part 110 . Accordingly, the second joint 112 is interlocked with the rotation of the first joint 111 and the third joint 113 that are rotated around the first fixing pin 111b and the second fixing pin 113a to generate movement. can

Referring to FIG. 4 , the connection between the third joint 113 and the rotation plate 140 may be made by being fastened by the fastening part 140a. A state in which the rotation plate 140 is disposed in a direction parallel to the plate 121 as shown in FIG. 4 may be a locked state. On the other hand, a state in which at least a part of the rotation plate 140 is drawn toward the receiving space 122a may be in an unlocked state. That is, in the latch 100 fastened to the first structure 200 through the coupling hole C, the inner space may be a space in which the rotation plate 140 is exposed, and the outer space is a space in which the pressing member 117 is located. This can be an outdoor space. Accordingly, the rotation plate 140 may be operated by the user, and accordingly, the pressing member 117 may press or release the pressure of the second structure 300 . Of course, this only means that each component is located in different spaces partitioned by the first structure 200 , but does not necessarily mean that the above-described components are located inside and outside.

5 is a view showing a housing 120 according to an embodiment of the present invention. FIG. 5 ( a ) is a perspective view of the housing 120 , and FIG. 5 ( b ) is a perspective side cross-sectional view of the housing 120 .

Referring to FIG. 5 , the housing 120 is provided with a plurality of coupling holes C penetrated so as to be coupled to the first structure 200 , and includes an opening 121a. The opening 121a is positioned at a position through which the third joint 113 passes when the latch 100 is in the locked state, and is positioned at a position through which the second joint 112 passes in the unlocked state. In addition, the housing 120 is provided with a seating portion 121c on which the sealing member 142 can be mounted. The seating portion 121c may be engraved from the plate 121 . As shown, although it is formed in a circular shape, it is not limited thereto.

Furthermore, the housing 120 includes a receiving portion 122 . The accommodating part 122 may form an accommodating space 122a inside. Receiving space (122a) is formed to extend long in a straight line, and the reciprocating block 130 is pressed into the receiving space (122a) can be entered. It can be entered by sliding the inner surface of the

When the reciprocating block 130 enters the receiving space 122a is closed, the pressure of the receiving space 122a increases, so that the reciprocating block 130 may not enter. Therefore, in order to keep the pressure of the accommodation space 122a equal to atmospheric pressure, the exhaust hole 120a is formed in the accommodation portion 122 so that the air in the accommodation space 122a can be discharged to the outside of the accommodation portion 122. can One or more exhaust holes 120a may be formed, and even when the reciprocating block 130 enters the receiving space 122a to the maximum, it may be formed at a position exposed to the receiving space 122a side.

On the other hand, the receiving portion 122 may be formed to protrude from the plate 121 to form the receiving space (122a) in one direction. At least a portion of the rotating plate 140 may be introduced into the receiving space 122a formed by the receiving part 122 as described above. Since this is the inlet made by the rotation of the third joint 113, the rotation plate 140 can be introduced into the receiving space 122a while forming an arc-shaped trajectory. Therefore, as a structure for avoiding such interference with the trajectory and securing the accommodation space 122a, the housing 120 provides a guide surface 123 formed as a curved surface between the plate 121 and the accommodation portion 122. can

6 is a perspective view illustrating the latch 100 excluding the housing 120 according to an embodiment of the present invention.

Referring to FIG. 6 , the first joint 111 , which is one end of the joint part 110 , and the pressing member 117 are connected, and the third joint 113 , which is the other end of the joint part 110 , and the rotation plate 140 are coupled. do. The rotation plate 140 may be coupled to the third joint 113 through the fastening portion 140a. The fastening part 140a may couple the sealing member 142 and the sealing pressure part 141 together in the coupling process between the third joint 113 and the rotation plate 140 .

Meanwhile, the second joint 112 may include a first connection pin 112a, a second connection pin 112b, and a third connection pin 112c. The first connection pin 112a is connected to the first joint 111 , and the third connection pin 112c is connected to the third joint 113 . One end of the first elastic body 150 may be connected to the second connecting pin 112b, and the other end may be connected to the first connecting pin 112a. Accordingly, the first elastic body 150 generates an elastic restoring force as much as it is moved by rotation, so that the elastic force can be directly transmitted to the first joint 111 and the second joint 112, and indirectly to the second joint. It can be delivered to the third joint 113 through (112).

Furthermore, the joint part 110 may be mechanically designed so that the joint part 110 does not interfere with the housing 120 during the change to the locked state and the unlocked state. This includes that the second joint 112 does not extend in a straight line and includes a bending point among the entire extension section. For example, the second joint 112 is bent at a point where the first connection pin 112a, the second connection pin, and the third connection pin 112c are not located on the same line and the second connection pin 112b is located. It may be extended by being angularly spaced apart by a predetermined angle. Due to this structure, it can move while passing through the opening 121a of the housing 120 during the change to the unlocked state.

7 is a side view of the latch 100 in a locked state according to an embodiment of the present invention, and FIG. 8 is a side view of the latch 100 in an unlocked state according to an embodiment of the present invention.

7 and 8, the joint part 110 is a first joint 111 and a third joint 113 which are rotated in a finite range around the first fixing pin 111b and the second fixing pin 113a. ) can cause movement. Based on the state shown in Fig. 7, the first joint 111 may be rotated counterclockwise with the first fixing pin 111b as the center of rotation, and the third joint 113 is the second fixing pin 113a. can be rotated clockwise around the center of rotation. Through this, the shape of the latch 100 in the unlocked state shown in FIG. 8 may be changed.

The accommodation space 122a may be compressed by the movement of the reciprocating block 130 according to the movement of the aforementioned joint portion 110 . The housing 120 according to an embodiment of the present invention may be provided with an exhaust hole 120a for evacuating the pressure in the compression space to maintain the same pressure as the atmospheric pressure. The exhaust hole 120a may communicate the accommodating space 122a and the external space of the accommodating part 122 .

This structure may be a structure in which the receiving part 122 can block the inflow of moisture through the open side except for the exhaust hole 120a. The purpose of this is to block the inflow of moisture into the accommodating space 122a, and when moisture is introduced into the accommodating part 122 due to the lowered temperature, the reciprocating block 130 is cooled and changed to ice. Movement within this accommodation space becomes difficult. The movement of the reciprocating block 130 becomes difficult, and when it is fixed, the operation of the latch becomes impossible, so that it is impossible to fix or release the second structure from the first structure. That is, in order to prevent such a problem, it may be a structure for fundamentally blocking the inflow of moisture.

Furthermore, when the latch 100 of the present invention is applied to the exterior of the aircraft, as the height difference occurs, the temperature change is relatively large due to the pressure difference, and moisture is generated in the accommodating part 122 due to the dew condensation. can be By controlling such moisture through the exhaust hole 120a under the same conditions as atmospheric pressure, the generation of moisture is prevented, or even when moisture is generated, as ventilation is performed through the plurality of exhaust holes 120a, moisture evaporates in the ventilation process. and can be removed.

Accordingly, the formation position of the exhaust hole 120a may be provided on the receiving portion 122 side (preferably, the entry direction end side of the reciprocating block 130). For example, when a through hole is formed on the side of the reciprocating block 130 in the direction in which the reciprocating block 130 enters the receiving space 122a, an increase in pressure according to the entry of the reciprocating block 130 can be prevented. Moisture generated inside the accommodation space 122a is difficult to ventilate.

Furthermore, in relation to the discharge of the air in the accommodation space 122a to the outside of the accommodation portion 122 due to the entry of the reciprocating block 130 described above, it will be described in more detail with reference to FIG. 9 below.

9 is a view showing the position of the reciprocating block 130 according to whether the movable plate is movable according to an embodiment of the present invention. It is a view showing a state being pressed, Figure 9 (b) is a view showing a state in which the reciprocating block 130 is pressed by the movable plate in the released state.

When the reciprocating block 130 enters the receiving space 122a, the second elastic body 131 is compressed to generate an elastic force. However, since the elastic force of the first elastic body 150 acts larger, the rotation plate 140 can maintain a state of continuously pressing the reciprocating block 130 .

On the other hand, in the locked state in which the latch 100 presses the second structure 300 , the reciprocating block 130 may be located on the open side of the accommodation space 122a by the second elastic body 131 . Even in this case, a section in which the receiving space extends in a straight line and at least a part thereof are disposed through a surface contact to prevent moisture or foreign substances from flowing into the receiving space 122a.

Referring to FIG. 9 , the latch 100 may be in a locked state. Since the reciprocating block 130 is not being pressed by the rotating plate 140, the reciprocating block 130 is supported by the second elastic body 131 on the open side of the accommodation space 122a and can be positioned. . In this case, the second structure 300 may be in a state in which the latch 100 is fixed. The accommodation space 122a of the housing 120 communicated with the outside of the cabin through the exhaust hole 120a may be ventilated by moving air through the path of the first flow path F1. Such ventilation can be more effective than in the case of aircraft or ships. That is, a fluid flow occurs according to movement, but the faster the speed, the greater the amount of air introduced, so ventilation efficiency can be increased. In order to increase this effect, the plurality of exhaust holes 120a may be disposed on the front and rear sides based on the air flow. The exhaust hole 120a disposed on the front side functions as an exhaust hole 120a for introducing air, and the exhaust hole 120a disposed on the rear side functions as an exhaust hole 120a for air outflow.

As another example, as described above, in a structure in which forced convection is not made due to external air flow occurring and air flow is not made smoothly, the structure is arranged to be spaced apart in the vertical direction to induce natural convection due to temperature difference. A plurality of exhaust holes 120a may be disposed. That is, in the process of mixing the air located below the relatively low temperature and the air located above the relatively high temperature in the receiving space 122a through heat exchange, convection occurs, and the movement of air occurs due to the generation of convection. In the process, it can be expected that the air in the accommodation space 122a flows in and out through the exhaust hole 120a.

On the other hand, as the reciprocating block 130 is moved, the pressure in the accommodation space 122a may be increased. At this time, the air in the accommodation space 122a through the exhaust hole 120a is moved to the outside of the accommodation unit 122 . can be discharged In particular, referring to FIG. 9(b) , air may move in a path in which the second flow path F2 is formed. At this time, if the outflow of air through the exhaust hole 120a is not made immediately or is not sufficiently made, the rotation plate 140 is pressed by the first elastic body 150 and the entry into the receiving space 122a is delayed. Therefore, the release of the second structure 300 by the latch 100 is also delayed.

Accordingly, the cross-sectional area of the fluid passage through the exhaust hole 120a may be determined in size in proportion to the speed of entry into the accommodation space 122a of the reciprocating block 130 . Here, the fluid passage area is the sum of the fluid passage cross-sectional areas formed by the exhaust holes 120a, and can be said to be the sum of the fluid passage cross-sectional areas formed by each exhaust hole 120a even when there are a plurality of them.

10 is a view showing that the exhaust hole (120a) is formed in a tapered shape according to an embodiment of the present invention,

Referring to FIG. 10 , the exhaust hole 120a formed in the accommodating part 122 has a tapered shape so that the diameter formed on the accommodating space 122a side and the diameter formed on the outside of the accommodating part 122 are different from each other. can be formed with Specifically, the first diameter (D1), which is the diameter of the inner wall side of the receiving portion 122 formed on the receiving space (122a) side, is larger than the second diameter (D2) formed on the outer surface side of the receiving portion 122. can That is, the air exhausted to the outside from the accommodation space 122a may be exhausted at a higher pressure while reducing the fluid passage cross-sectional area. In this structure, in the case of the exhaust hole 120a provided on the front and back sides of the air flow direction, in particular, in the case of the exhaust hole 120a provided on the front side, the air flow can be formed in the opposite direction, and in order to overcome this, the air is smoothly exhausted. This is for exhausting at a higher pressure. In addition, this is to promote the discharge of moisture generated inside and to further reduce the amount of moisture formed on the outer surface of the accommodating part 122 .

In addition, even when the reciprocating block 130 enters the accommodating space 122a to the maximum, the exhaust hole 120a is provided on the entry direction side more than the maximum entry distance E of the reciprocating block 130 in order to function effectively. can be That is, it may be formed at a position exposed to the receiving space 122a even when the reciprocating block 130 enters the maximum.

Although representative embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications are possible within the limits without departing from the scope of the present invention with respect to the above-described embodiments. . Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined by the claims described below as well as the claims and equivalents.

100: latch 110: joint part
111: joint 1 111a: intermittent hole
111b: first fixing pin 112: second joint
112a: first connection pin 112b: second connection pin
112c: 3rd connection pin 113: 3rd joint
113a: second fixing pin 117: pressing member
117a: press head 117b: press pin
117c: lock nut 120: housing
120a: exhaust hole 121: plate
121a: opening 121b: reinforcing rib
121c: seating part 122: receiving part
122a: accommodation space 123: guide surface
130: reciprocating block 131: second elastic body
140: rotation plate 140a: fastening part
140b: fastening hole 141: sealing pressure part
142: sealing member 150: first elastic body
200: first structure 300: second structure
C: coupling hole F1: first flow path
F2: second flow path P: pressurization direction
D1: first diameter D2: second diameter
E: entry distance

Claims (22)

a housing connected to the first structure and including an accommodating part for providing an accommodating space;
a joint part connected to the housing and a fixing pin, and including a plurality of joint structures connected to each other by a plurality of connecting pins;
a first elastic body having both ends connected to the plurality of connection pins to generate an elastic force when the plurality of joint structures are rotated;
a pressing member for pressing and supporting the second structure toward the first structure by the elastic force at one end of the joint part;
a rotation plate that is drawn in or drawn out into the receiving space when the plurality of joint structures are rotated at the other end of the joint part; and
A latch for fixing the door structure, including; a reciprocating block that is pressed by the rotation plate by the retraction of the rotation plate and moves to the inside of the accommodation space.
The method according to claim 1,
A latch for fixing the door structure, further comprising a second elastic body for returning the reciprocating block to the origin when the rotation plate is withdrawn.
3. The method according to claim 2,
A latch for fixing the door structure, wherein the elastic force of the first elastic body is greater than the elastic force of the second elastic body.
The method according to claim 1,
The housing is
A latch for fixing the door structure, including an opening into which a part of the joint part is inserted so that a part of the joint part is exposed to one side of the housing and the other part is exposed to the other side of the housing.
5. The method according to claim 4,
It is formed to correspond to the perimeter of the opening,
The latch for fixing the door structure, further comprising a sealing part on at least one of the one side and the other side to block the inflow of the fluid between the one side and the other side in a locked state.
The method according to claim 1,
The joint part,
a first joint exposed to one side of the housing and connected to the pressing member;
a third joint exposed to the other side of the housing and connected to the rotation plate; and
A latch for fixing the door structure, including; a second joint connecting the first joint and the third joint.
7. The method of claim 6,
The second joint is
A latch for fixing a door structure including a bending point at which an extension direction is bent among an extension section extending from the first joint to the third joint.
The method according to claim 1,
The receiving unit,
A latch for fixing the door structure, including a guide surface formed as a curved surface along the movement trajectory of the rotation plate when the rotation plate enters the accommodation space.
The method according to claim 1,
The inner surface of the receiving part,
A latch for fixing the door structure, which slides with the side surface of the reciprocating block and extends linearly in one direction so that the reciprocating block can linearly reciprocate.
a first structure partitioning the first space and the second space and having an installation hole;
a second structure positioned in one of the first space and the second space and arranged to be in contact with the first structure; and
a latch installed in the installation hole and pressurizing and fixing the second structure from the first structure; and
the latch,
a housing connected to the first structure and including an accommodating part for providing an accommodating space;
a joint part connected to the housing and a fixing pin, and including a plurality of joint structures connected to each other by a plurality of connecting pins;
a first elastic body having both ends connected to the plurality of connection pins to generate an elastic force when the plurality of joint structures are rotated;
a pressing member for pressing and supporting the second structure toward the first structure by the elastic force at one end of the joint part;
a rotation plate that is drawn in or drawn out into the receiving space when the plurality of joint structures are rotated at the other end of the joint part; and
A reciprocating block that is pressed by the rotation plate by the retraction of the rotation plate and moves to the inside of the accommodation space.
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