KR200248811Y1 - a door lock for prevention of noises and damages of wall - Google Patents

Abstract

The present invention relates to a door lock, which is provided with a rubber buffer and a shock absorbing spring in a door lock mounted on a room door or a bathroom door of a house, thereby preventing noise and wall damage by mitigating a wall shock when the door is opened or closed. I would have to.

Door lock for preventing noise and wall damage according to the present invention is provided with a support shaft 11 formed with a male threaded portion 12 on one side outer circumferential surface at the center of both ends of the cylindrical, the inner surface of the support shaft 11 in contact with the inner diameter A door lock button 14 and a key cylinder 15 are provided at both ends of the rotating shaft rod 13 provided therethrough, and the door lock unit 17 is connected to the rotating shaft rod 13 and protrudes from one side of the cylinder. A male screw portion 12 of the support shaft 11 has an inner diameter on the attachment plate 16 with a body portion 10 having a configuration in which the attachment plate 16 is fixed on both end surfaces in an integrated state. The cover plate 40 is provided with a female screw portion (40d) to be coupled to and a coupling shaft (40b) having a support jaw (40c) on the outer circumferential surface, the buffer spring (41) on the coupling shaft (40b) In this inserted state, the rubber block member 43 is attached to and combined with the handle hole 42, and the inner and outer handles 20 and 30 are integrated. Configure the Analects.

The present invention having the configuration as described above has a rubber cushioning material 43 on the outer end face of the spherical handle to relieve sudden impact or strong pressure applied to the handle, and further, inside the handle 20, 30. The shock absorbing spring 41 is built in, and the support spring 40c is formed on the coupling shaft 40b of the cover plate 40 at a distance of about 5 mm from the circular frame 40a. Since it is not pushed, the shock is absorbed by the elasticity of the shock absorbing spring 41 caught on the support jaw 40c even when a strong impact from the outside is applied, and the impact is applied to the door 100 and the wall surface through the cover plate 40. Block delivery.

Thus, in the present invention, by reducing the external impact or strong pressure applied to the door lock by the action of the rubber buffer provided in the handle, it prevents frequent failure of the door lock, and prevents the door frame or adjacent wall surface from being damaged. The shock absorbing spring is built in the handle, and the support projection of the circular protrusion formed on the coupling shaft of the door lock cover plate prevents the support spring from being pushed by the cushioning spring. By absorbing the shock by the elasticity and blocking the transmission of shock on the door and the wall, it reduces the noise caused by the sudden closing or closing of the door, and prevents frequent failure of the door lock, and prevents the door frame or the adjacent wall from being damaged. Doubles the blocking effect.

Description

Door lock for prevention of noises and damages of wall

The present invention relates to a door lock, which is provided with a rubber buffer material and a shock absorbing spring in a door lock mounted on a room door or a bathroom door of a house, thereby alleviating and absorbing a wall shock due to a sudden closing or closing of the door, thereby reducing noise and wall damage. It is to prevent.

Door locks that are generally used are very diverse in form, but can be divided into two types, that is, a conventional spherical handle and a straight lever-type handle.

It is a spherical handle door lock that is convenient to be used for indoor bathrooms and doors of homes, and it is convenient to use the spherical handle door lock. It is configured to use, and to prevent unexpected intrusion from the outdoor side to the indoor side by pressing the button on the center of the indoor handle is locked so that the outdoor handle does not rotate.

In addition, it is a lever-type door lock to improve the above-mentioned spherical door lock so that it can be used in the entrance door, etc. In general, the lever-type door lock that is currently used, the lever is a function of opening and locking the lock (can open and close the door equipped with the lock) All parts that perform the function) are connected to each other to operate.

However, if the spherical door lock or lever type door lock is applied with excessive force to the handle, the door lock will be broken, and especially when the door lock is in the locked state, the entire locking function of the door lock is caused by the strong torsional force caused by the lever lever action. There is a problem such that the lock is terminated and the lock state is terminated, the original function of the door lock is completely lost.

In particular, when the exterior window and the interior door are opened for indoor ventilation, the door is suddenly closed by the strong wind blowing in and out of the outside, so that the person in the room may be surprised by the loud noise caused by the wall impact. In some cases, the door is accidentally locked automatically, causing difficulties, and the vibrations of the wall shocks are transmitted to the walls, causing the walls to be damaged, such as breaking tiles in the bathroom. There are many problems such as causing frequent breakdowns of the device, but there is no prevention technology for this.

In order to solve the above problems, a separate door check device for slowly closing the door should be provided, which is not only good in appearance, but also increases the construction cost, so it is not easy to equip the interior door in an ordinary home and economically. There is a problem that causes a lot of losses.

The present invention is a door lock to be installed in a room door or bathroom door of the house, provided with a rubber cushioning material on the outside of the spherical handle to mitigate the impact, by providing a support jaw and a buffer spring inside the handle to absorb the shock, It is an object of the present invention to provide a door lock for preventing noise and wall damage to alleviate the wall impact caused by the closing or sudden closure of the door.

In addition, it is not necessary to provide a separate door check device, and it is possible to reduce the maintenance cost due to wall damage and frequent failure of the door lock, including cracking of bathroom tiles, thereby increasing the economic efficiency and increasing the usability of the door lock itself. Another purpose of the devise.

Figure 1 is a side view showing a state in which the door lock of the present invention assembled on the door

Figure 2 is an exploded perspective view of the door lock according to the present invention

Figure 3 is a detailed cross-sectional view of the handle of the door lock according to the present invention

Figure 4 is an exploded perspective view of the handle of the door lock according to the present invention

[Explanation of symbols on the main parts of the drawings]

10 body portion 10a, 16c coupling hole 11 support shaft

12: male thread portion 13: rotary shaft 14: door lock button

15 key cylinder 16 mounting plate 17 door lock unit

18: fixing plate 20: outer handle 30: inner handle

40: cover plate 40a: circular frame 40b: coupling shaft

40c: Base jaw 40d: Female thread portion 41: Shock absorbing spring

42: handle opening 42a, 43a: center hole 42b: groove

43: rubber buffer 43b: engaging projection 100: door

The present invention relates to a door lock, which is provided with a rubber buffer material and a shock absorbing spring in a door lock mounted on a room door or a bathroom door of a house, thereby alleviating and absorbing a wall shock due to a sudden closing or closing of the door, thereby reducing noise and wall damage. It is characterized by the prevention.

A side view showing a state in which the door lock for preventing noise and wall damage according to the present invention is assembled and mounted on a general indoor door is shown in FIG. 1, wherein the inner handle 20 and the outer handle are centered on the door 100. 30 is symmetrically fixed, a door lock button 14 is provided at the spherical center of the inner handle 20, a key cylinder 15 is provided at the center of the outer handle 30, and on the side of the door 100. The door lock unit 17 protrudes to the center of the screw fixing plate 18.

The door lock of the present invention can be largely divided into the body portion 10, the inner handle 20 and the outer handle 30, the detailed configuration of each of them will be described with reference to the exploded perspective view of FIG.

First, the body portion 10 has a support shaft 11 on both sides, has an outer diameter contacting the inner diameter of the support shaft 11 is provided with a rotary shaft rod 13 protruding outward, the rotary shaft rod 13 The door lock button 14 is provided to allow the inside and outside of the inner and outer side to contact the inner diameter, and is attached to both ends of the body portion 10 to be attached to the fixing plate 16 by screwing the coupling hole 10a. ) Is provided.

That is, the body portion 10 has a support shaft 11 protruding from the center of both end surfaces of the short cylindrical length is the same as the thickness of the general door, the mounting plate 16 on both end surfaces of the support shaft 11 Coupling hole (10a) for coupling, fixing is formed, the groove portion (10b) formed on one side of the body portion 10 is connected to the internal rotary shaft rod 13 to the rotation of the rotary shaft rod (13) Accordingly, the door lock unit 17 is provided to be able to flow inward and outward.

The support shaft 11 has a male screw portion 12 formed on the outer circumferential surface of the body portion 10, and rotates left and right in a shaft center in contact with the inner diameter of the support shaft 11 therein. 13 is provided to penetrate and protrude on both sides.

One side of the rotating shaft bar 13, that is, the portion to which the inner handle 20 is coupled, the door lock button 14 is in contact with the inner diameter of the rotating shaft bar 13, it is possible to insert or protrude in and out as needed. On the other side, that is, the portion to which the outer handle 30 is to be coupled is provided with a key cylinder 15.

These body parts 10 are all integrated, and an attachment plate 16 for attaching when fixing the body part 10 on the door 100 is coupled on both end surfaces of the body part 10, the attachment. The plate 16 has a central through hole 16d equal to the size of the outer circumferential surface of the support shaft 11 in a circular plate 16a having a diameter larger than a cross section of the body portion 10, and outside the central through hole 16d. The side surface forms an inclined portion 16b extending to the circumference of the cross section of the body portion 10, and the coupling hole 16c coinciding with the engaging hole 10a of the body portion 10 on the inclined portion 16b. ) Is formed.

In addition, spherical inner and outer handles 20 and 30 are coupled to both sides of the body portion 10, and the cover plate 40 and the inner shock absorbing spring 41 covered by the attachment plate 16, a rubber buffer material. It consists of a handle (42) provided with 43

First, in the case of the cover plate 40, the male screw portion 12 of the support shaft 11 in the center of the circular frame 40a that covers and protects the circular plate 16a and the inclined portion 16b of the attachment plate 16; ) And a coupling shaft 40b formed with an inner diameter portion of the female screw portion 40d to be screwed thereon, and on the outer circumferential surface of the coupling shaft 40b at intervals of about 5 mm from the circular frame 40a. The support jaw 40c is formed, and the buffer spring 41 is inserted and provided by being caught by the support jaw 40c.

The handle 42 is provided with a rubber buffer 43 on the other side of the coupling portion 42c coupled to the coupling shaft 40b, the shock absorbing spring 41, as shown in Figure 4, the handle 42 and When the rubber buffer member 43 is in contact with the cross section, the center hole 42a, 43a into which the door lock button 14 or the key cylinder 15 which is connected to the pivot shaft 13 is inserted is formed in the center thereof, (42) A small number of grooves 42b are provided on the bonding cross section at appropriate intervals, and coupling protrusions 43b are provided on the bonding cross section of the rubber buffer 43, respectively, to apply an adhesive on the bonding cross section, and then the groove 42b and Coupling projection 43b is coupled to each other, the center of the outer peripheral surface of the rubber buffer 43, when the door lock button 14 or the key cylinder 15 is provided with a thin groove (43c) of about 6mm depth to facilitate its operation Formed.

In other words, the inner and outer handles 20 and 30 have the same configuration, a door lock button 14 is provided at the center of the inner handle 20, and a key cylinder 15 is provided at the center of the outer handle 30. , The handle configuration and coupling state in the above can be seen well in the detailed cross-sectional view of FIG.

Referring to the configuration again through the process of installing the door lock device described above on the general interior door 100,

First, a groove in which the body portion 10 and the side door lock unit 17 of the door lock can protrude at an appropriate position of the door 100 is dug, and the door lock body portion 10 moves the door lock button 14 to the indoor side. The door lock unit 17 is inserted into and protrudes from the side of the door 100 that is in contact with the door frame, and is inserted into the thickness of the door 100 so as to be equal to the thickness of the door 100. And tighten the screws, and cover the cover plate 40 on both side mounting plate 16 to tighten and tighten the female and male screw parts 12 and 40d, and then onto the coupling shaft 40b of the cover plate 40. The grip spring 41 is inserted into the supporting jaw 40c, and the handle 42 is integrated with the rubber buffer 43 by the coupling of the end face adhesive, the groove 42b, and the engaging projection 43b thereon. Combine the to complete the door lock device.

The door lock installed as described above is the same as the conventional door lock, when the door lock button 14 in the center of the inner handle 20 is locked to prevent unexpected intrusion from the outdoor side to the indoor side, the outer handle 30 is rotated. In this case, when you want to open the door from the outside can be opened by using the key that is fitted.

In particular, in the case of the present invention, a rubber cushioning material 43 is provided on an outer end surface of a spherical handle to relieve sudden shock or strong pressure applied to the handle, and further, a cushioning spring inside the handles 20 and 30. (41) is built-in, the support jaw (40c) formed on the coupling shaft (40b) of the cover plate 40 at intervals of about 5mm with the circular frame (40a) is supported so that the buffer spring 41 is not pushed Therefore, even if a strong impact from the outside, the shock is absorbed by the elasticity of the shock absorbing spring 41 caught on the support jaw 40c and the shock is transmitted to the door 100 and the wall surface through the cover plate 40 Block it.

The present invention is a conventional spherical door lock handle used in a bathroom or a room door of a house, and a rubber cushioning material is provided on the outer end face of the spherical handle to alleviate external shock or strong pressure applied to the door lock, thereby preventing frequent failure of the door lock. It is effective in preventing the door frame, the joining wall surface, and the like from being damaged.

In addition, the shock absorbing spring is built in the handle, and the support projection of the circular projection formed on the engagement shaft of the door lock cover plate prevents the support spring from being pushed against the shock spring. Shock is absorbed by the elasticity of the door, and the shock transmission to the door and the wall is blocked, thereby reducing the noise caused by the sudden closing or closing of the door, and preventing frequent failure of the door lock. Doubles the effect of preventing.

In addition, no separate parts or equipment are required, and the manufacturing and installation are simple and economical. The combination of the handle and the rubber buffer material is solid, and the appearance is beautiful, thereby increasing the usability of the door lock device.

Claims (1)

A support shaft 11 having a male screw portion 12, a rotation shaft rod 13 in which a door lock button 14, a key cylinder 15, and a door lock unit 17 are integrated, and an attachment plate 16; In the door lock having a spherical inner and outer handles (20, 30) on both sides of the cylindrical body portion (10), In the center of the circular frame (40a) to cover and protect the attachment plate 16, the female thread portion (40d) to be coupled to the male screw portion 12 of the support shaft 11 on the inner peripheral surface and the circular frame (40a) on the outer peripheral surface and A cover plate 40 having a coupling shaft 40b having a support protrusion 40c having a circular protrusion shape at intervals of 5 mm; A shock absorbing spring 41 inserted into and engaged with the support jaw 40c on the coupling shaft 40b; A gripper 42 having a central hole 42a and a few grooves 42b formed at the other end surface of the coupling portion 42c coupled to the coupling shaft 40b into which the buffer spring 41 is inserted; On the cross section of the handle 42 and the cross section bonded with an adhesive, the same central through hole 43a as described above and a coupling protrusion 43b coupled to the groove 42b are formed, and a 6 mm depth is formed at the center of the other circular arc surface. By forming the inner and outer handles 20 and 30 in which the rubber shock absorber 43 having the thin grooves 43c formed therein is assembled and joined, Door lock for noise and wall damage prevention, characterized by shock absorption and absorption.