KR102549769B1 - Push-pull type door lock - Google Patents

Abstract

The push-pull type door lock includes a body provided on both sides of the door and having an internal space, a front end rotatably mounted in a rotating body insertion groove provided inside the body, and a mortise mounted on the door. A rotating body that transmits a rotational force for operating the latch bolt of, a handle that is hinged with the body and performs a push or pull action with respect to the body, and a handle that is fixed to the handle and passes through the body, It may include an operating block for pushing and moving the protruding rod protruding from the side of the rotating body according to the push or pull operation of the handle to rotate.

Description

Push-pull type door lock {Push-pull type door lock}

The present invention relates to a push-pull type door lock, and more particularly, to a push-pull type door lock in which a latch bolt of a mortise is operated by pushing or pulling a handle.

In general, a push-pull type door lock is a method of unlocking a latch bolt of a mortise while a rotating body rotates when force is simply applied to an inner handle or an outer handle in the direction of opening the door.

The push-pull type door lock transfers the force applied to the handle to the rotating body using a gear structure such as a rack and pinion or a link structure such as a slider.

Korean Patent Registration No. 10-1642943 (registered on July 20, 2016) discloses a push-pull type door lock having the gear structure, and Korean Patent Publication No. 10-2018-0007076 (published on January 22, 2018). discloses a door lock having a push-pull handle having the above link structure.

However, since the push-pull type door lock includes the gear structure or the link structure to rotate the rotating body, the push-pull type door lock has a complicated structure, a large size, and is not easy to manufacture. .

The present invention provides a compact push-pull type door lock that has a simple structure and is easy to manufacture.

A push-pull type door lock according to the present invention includes a body provided on both sides of a door and having an inner space, and a front end rotatably mounted in a rotation body insertion groove provided inside the body, and the door lock A rotating body that transmits rotational force for operating the latch bolt of the mortise mounted on the body, a handle hinged to the body and performing a push or pull action with respect to the body, and a handle that is fixed to the handle and passes through the body, In order to rotate the rotating body, an operating block for pushing and moving a protruding rod protruding from a side of the rotating body according to the push or pull operation of the handle may be included.

According to one embodiment of the present invention, the door lock is mounted on the rear surface of the body, further includes a guide plate having a rotating body accommodating hole accommodating the rear end of the rotating body to guide the rotation of the rotating body. can include

According to one embodiment of the present invention, the door lock is provided to surround the rotating body, and further includes a torsion spring providing a restoring force for returning the rotating body to an original position, and one end of the torsion spring is It is fixed to the body, and the other end of the torsion spring may be fixed to the rotating body.

According to one embodiment of the present invention, the door lock further includes a coil spring having one end fixed to the body and the other end fixed to the rotating body, and providing a restoring force for returning the rotating body to an original position. can do.

According to one embodiment of the present invention, the door lock further includes a second protruding rod protruding from a side surface of the rotating body at a position opposite to a position at which the protruding rod is provided, and the other end of the coil spring is It may be fixed to the second protruding bar.

According to one embodiment of the present invention, the door lock is provided on the inner surface of the body, further includes a stopper for stopping the protruding rod moved by the operation block to limit the rotation range of the rotating body. can include

According to one embodiment of the present invention, the door lock is provided on the inner surface of the guide protrusion and the body protruding from the rotating body in a direction parallel to the central axis of the rotating body, the rotating body stably It may further include a guide groove for accommodating the guide protrusion to rotate and guiding the movement of the guide protrusion.

According to one embodiment of the present invention, the door lock may further include a guide ring inserted into the front end of the rotating body and provided between the body and the rotating body to guide rotation of the rotating body. there is.

According to one embodiment of the present invention, in order to reduce the frictional force between the guide ring and the body, the guide ring may be made of a highly lubricating fluororesin or coated with the fluororesin.

According to one embodiment of the present invention, a contact portion contacting the protruding rod in the operation block may have a curved shape to maintain a surface contact state with the protruding rod.

According to one embodiment of the present invention, the operation block may have the curved shape from a first point in contact with the protruding rod before the handle is operated to a second point in contact with the protruding rod after the handle is operated.

In the push-pull type door lock according to the present invention, the operation block directly rotates the rotating body according to the operation of the handle. Since there is no separate structure between the operation block and the rotating body, the structure of the push-pull type door lock can be simplified. Since the structure of the push-pull type door lock is simple, the size of the push-pull type door lock can be reduced, and the push-pull type door lock can be easily manufactured.

1 is a front perspective view for explaining a push-pull type door lock according to an embodiment of the present invention.
2 is a rear perspective view for explaining the push-pull type door lock shown in FIG. 1;
FIG. 3 is a front exploded perspective view for explaining the push-pull type door lock shown in FIG. 1;
Figure 4 is a perspective view for explaining the rotating body, torsion spring and guide ring shown in Figure 3;
Figure 5 is a perspective view for explaining the operation block shown in Figure 3;
FIG. 6 is an exploded perspective view of the rear side for explaining the push-pull type door lock shown in FIG. 1;
Figure 7 is a rear view for explaining the body shown in Figure 1;
FIG. 8 is a rear view illustrating a state in which the rotating body and the coil spring are removed from the body shown in FIG. 7 .
9 is a cross-sectional view for explaining the push-pull type door lock shown in FIG. 1;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, it should be understood that this is not intended to limit the present invention to the specific disclosed form, and includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numbers have been used for like elements throughout the description of each figure. In the accompanying drawings, the dimensions of the structures are shown enlarged than the actual for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

1 is a front perspective view for explaining a push-pull type door lock according to an embodiment of the present invention, FIG. 2 is a rear perspective view for explaining the push-pull type door lock shown in FIG. 1, and FIG. A front exploded perspective view for explaining the push-pull type door lock shown in FIG. 1, FIG. 4 is a perspective view for explaining the rotating body, torsion spring and guide ring shown in FIG. 3, and FIG. 5 is shown in FIG. Figure 6 is a rear exploded perspective view for explaining the push-pull type door lock shown in Figure 1, Figure 7 is a rear view for explaining the body shown in Figure 1, FIG. 8 is a rear view illustrating a state in which the rotating body and the coil spring are removed from the body shown in FIG. 7 , and FIG. 9 is a cross-sectional view illustrating the push-pull type door lock shown in FIG. 1 .

1 to 9, the push-pull type door lock 100 is provided on both sides of the door, and the latch bolt ( 13) works.

The door lock 100 includes a body 110, a rotating body 120, a handle 130, an operating block 140, a guide plate 150, a torsion spring 160, a coil spring 170, and a guide ring ( 180) may be included.

The body 110 has an inner space and may be fixed to both sides of the door, respectively.

The rotation body 120 has a substantially cylindrical shape, and the front end is inserted into the rotation body insertion groove 111 provided inside the body 110 . The rotating body 120 may rotate with respect to the body 110 in the front and rear direction as a central axis.

The rotating body 120 may be coupled to the motion shaft 11 of the mortise 10 . Therefore, the operation shaft 11 rotates according to the rotation of the rotating body 120, and the latch bolt 13 operates according to the rotation of the operation shaft 11, thereby unlocking the door. .

The handle 130 is hinged with the body 110 and can perform a push or pull operation with respect to the body 110 .

Specifically, the body 110 is provided with a hinge portion 113 on the front, and a hinge shaft 115 fixes the handle 130 to the hinge portion 113. The handle 130 performs the push or pull operation while rotating about the hinge shaft 115 .

The operation block 140 is fixed to the handle 130 and extends to the inside of the body 110 through the body 110 . The operating block 140 contacts the first protruding bar 121 protruding from the side of the rotating body 110 .

When the handle 130 performs the push operation, the operation block 140 is located above the first protruding bar 121, and when the handle 130 performs the pull operation, the operation block 140 The block 140 may be located below the first protrusion bar 121 .

According to the push or pull operation of the handle 130, the operation block 140 rotates around the hinge shaft 115 and pushes the first protrusion bar 121 to move it downward or upward. . As the first protruding rod 121 moves, the rotating body 120 may rotate.

Since the door may be unlocked according to the rotation of the rotating body 120 , the door may be unlocked according to the push or pull operation of the handle 130 .

The operating block 140 directly rotates the rotating body 120 without a separate gear structure or link structure. Accordingly, the structure of the door lock 100 can be simplified. In addition, since the structure of the door lock 100 is simple, the size of the door lock 100 can be reduced and manufacturing of the door lock 100 can be facilitated.

The guide plate 150 is mounted on the rear surface of the body 110 . The guide plate 150 is provided with a rotating body accommodating hole 151 , and the rotating body accommodating hole 151 can accommodate the rear end of the rotating body 120 . Since the guide plate 150 can guide rotation of the rotating body 120, the rotating body 120 can rotate stably.

The torsion spring 160 is provided to surround the rotating body 120 and provides restoring force for returning the rotated rotating body 120 to its original position.

One end of the torsion spring 160 may be fixed to the body 110 and the other end of the torsion spring 160 may be fixed to the rotating body 120 .

Specifically, a fixing protrusion 116 is provided on the inner surface of the body 110 to be adjacent to the insertion groove 111 in the rotating body, and the one end of the torsion spring 160 is the fixing protrusion 116 can be fixed on In addition, a guide protrusion 125 protrudes from the rotation body 120 in a direction parallel to the central axis of the rotation body 120, and the other end of the torsion spring 160 is the guide protrusion 125 can be fixed on

When the rotating body 120 rotates in a state in which the one end of the torsion spring 160 is fixed to the fixing protrusion 116, the guide protrusion 125 rotates together with the rotating body 120 to generate the torsion. The other end of the spring 160 also rotates.

When the handle 130 is released after performing the push or pull operation, the rotation body 120 rotates in the opposite direction by the restoring force of the torsion spring 160 and returns to the original position. When the rotating body 120 returns to the original position, the operation block 140 and the handle 130 may also return to the original position.

The coil spring 170 has one end fixed to the body 110 and the other end fixed to the rotating body 120, and may additionally provide restoring force for returning the rotating body 120 to its original position. .

Specifically, a second protruding rod 123 protruding from the side of the rotating body 120 is provided at a position opposite to the position at which the first protruding rod 121 is provided, and the coil spring 170 The other end may be fixed to the second protruding bar 123 . At this time, screws may be used to fix the one end and the other end of the coil spring 170 .

Since the coil spring 170 serves to assist the torsion spring 160, when the restoring force of the torsion spring 160 is sufficient, the coil spring 170 may not be provided.

The first protrusion bar 121 and the second protrusion bar 123 moved by the operating block 140 are provided on the inner surface of the body 110 to limit the rotation range of the rotating body 120. A pair of stoppers 117 for stopping each may be provided.

The stoppers 117 are adjacent to the rotation body insertion groove 111 and may be arranged symmetrically with respect to the rotation body insertion groove 111 . Since the stoppers 117 limit the rotation range of the rotating body 120 , excessive rotation of the rotating body 120 can be prevented by the operation block 140 .

A guide groove 119 accommodating the guide protrusion 125 may be provided on an inner surface of the body 110 . The guide groove 119 has a substantially arc shape.

Since the guide groove 119 guides the movement of the guide protrusion 125 when the rotating body 120 rotates, the rotating body 120 can rotate stably.

Each of the guide protrusion 125 and the guide groove 119 may be provided in pairs. At this time, the guide protrusions 125 may be disposed at opposite positions with respect to the rotating body 120 . In addition, the guide protrusions 125 may be respectively positioned between the first protruding rod 121 and the second protruding rod 123 . Only one of the pair of guide protrusions 125 may fix the other end of the torsion spring 160 .

The guide grooves 119 are adjacent to the rotation body insertion groove 111 and may be arranged symmetrically with respect to the rotation body insertion groove 111 . The guide grooves 119 may be arranged so as not to overlap with the stoppers 117 .

When the guide protrusions 125 and the guide grooves 119 are provided as a pair, the rotating body 120 can rotate more stably.

In addition, since the guide grooves 119 can limit the movement range of the guide protrusions 125, they can also play a role in limiting the rotation range of the rotating body 120.

The guide ring 180 is inserted into the front end of the rotating body 120 and provided between the body 110 and the rotating body 120 . The guide ring 180 may have a cutout 181 extending from the front end to the rear end of the side surface. The guide ring 180 can be easily inserted into the front end of the rotating body 120 by using the cutout 181 . Alternatively, the guide ring 180 may have a shape that does not include the cutout 181 .

The guide ring 180 guides the rotation of the rotating body 120 so that the rotating body 120 rotates smoothly.

In addition, the guide ring 180 may have a locking jaw 183 along the circumference of the rear end. Since the locking jaw 183 is caught at the entrance of the rotation body insertion groove 111, the depth at which the rotation body 120 is inserted into the rotation body insertion groove 111 may be limited.

Also, the guide ring 180 may be made of a fluororesin having high lubricity or may have a surface coated with the fluororesin. Examples of the fluororesin include polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer (FEP), and perfluoroalkoxy (PFA). Thus, the frictional force between the guide ring 180 and the body 110 can be reduced.

Since the frictional force between the guide ring 180 and the body 110 is reduced, the guide ring 180 and the rotating body 120 can rotate smoothly with respect to the body 110 .

When the operation block 140 has a corner in contact with the first protrusion bar 121, when the operation block 140 operates for a long time, the edge makes point contact with the first protrusion bar 121. . Therefore, the corner may be worn by the first protrusion bar 121 . When the corner is worn, noise or vibration may occur during operation of the operating block 140 due to backlash.

In order to prevent the backlash, a contact portion 141 contacting the first protruding bar 121 in the operation block 140 may have a curved shape to maintain surface contact with the first protruding bar 121. .

Specifically, the operation block 140 is connected to the first protruding bar 121 after the handle 130 is operated at a first point in contact with the first protruding bar 121 before the handle 130 is operated. It may have the curved shape up to the second contact point. The second point is a point where the operation block 140 contacts the first protruding rod 121 when the first protruding rod 121 is stopped by the stopper 117 .

During operation of the operation block 140, since the contact portion 141 maintains surface contact with the first protrusion bar 121, noise or vibration due to the operation of the operation block 140 can be prevented. .

Meanwhile, the door lock 100 provided on the outer surface of the door may further include a lock release unit (not shown) operable by a person entering or exiting the door. The unlocking unit may be made of any one or a combination of a sensor capable of recognizing a user's fingerprint and a keypad inputting a password. Security can be strengthened by allowing access to the door only by persons designated through the unlocking unit.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

10: mortis 11: motion axis
13: latch bolt 100: door lock
110: body 111: rotation body insertion groove
113: hinge part 115: hinge axis
116: fixed protrusion 117: stopper
119: guide groove 120: rotating body
121: first protrusion 123: second protrusion
125: guide protrusion 130: handle
140: operation block 141: contact area
150: guide plate 151: rotation body receiving hole
160: torsion spring 170: coil spring
180: guide ring 181: incision
183: snatch jaw

Claims (11)

a body provided on both sides of the door and having an internal space;
a rotating body, the front end of which is rotatably mounted in the rotating body insertion groove provided inside the body, and transmits rotational force for operating the latch bolt of the mortise mounted on the door;
a handle hinged with the body and performing a push or pull operation with respect to the body; and
An operation block fixed to the handle and penetrating the body, and pushing and moving a protruding bar protruding from the side of the rotating body according to the push or pull operation of the handle to rotate the rotating body,
The push-pull type door lock further comprises a stopper provided on an inner surface of the body and stopping the protruding rod moved by the operation block to limit a rotation range of the rotating body. The push-pull method according to claim 1, further comprising a guide plate mounted on a rear surface of the body and having a rotation body accommodating hole for accommodating a rear end of the rotation body to guide rotation of the rotation body. 's door lock. The method of claim 1, further comprising a torsion spring provided to surround the rotating body and providing a restoring force for returning the rotating body to an original position,
A push-pull type door lock, characterized in that one end of the torsion spring is fixed to the body, and the other end of the torsion spring is fixed to the rotating body. The push-pull method of claim 3, further comprising a coil spring having one end fixed to the body and the other end fixed to the rotating body and providing a restoring force for returning the rotating body to an original position. door lock. The method of claim 4, further comprising a second protruding rod protruding from the side of the rotating body at a position opposite to the position at which the protruding rod is provided,
The push-pull type door lock, characterized in that the other end of the coil spring is fixed to the second protruding rod. delete According to claim 1, Guide projections protruding from the rotating body in a direction parallel to the central axis of the rotating body; and
The push-pull type door lock further comprises a guide groove provided on an inner surface of the body, accommodating the guide protrusion so that the rotating body stably rotates, and guiding the movement of the guide protrusion. The push-pull type door lock according to claim 1, further comprising a guide ring inserted into the front end of the rotating body and provided between the body and the rotating body to guide rotation of the rotating body. . [Claim 9] The push-pull type door lock of claim 8, wherein the guide ring is made of a highly lubricating fluororesin or coated with the fluororesin to reduce frictional force between the guide ring and the body. The push-pull type door lock of claim 1 , wherein a contact portion of the operation block that contacts the protruding bar has a curved shape so as to maintain surface contact with the protruding bar. 11. The push-pull method of claim 10, wherein the operation block has the curved shape from a first point in contact with the protruding bar before the handle operates to a second point in contact with the protrusion bar after the handle is operated. 's door lock.

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