KR102211878B1 - push type double lock crescent for window screen - Google Patents

Abstract

The present invention relates to a locking device used in a security screen, and more specifically, by rotating a handle to lock or unlock the hook by fixing it to a strike installed on the window frame of the screen, but by installing a spring on one side of the handle It is a double locking device for a push-type insect screen that allows the handle to be rotated only in a state where the spring is compressed by pressing the handle so that the screen cannot be opened arbitrarily from the outside to perform double locking.

Description

Push type double lock crescent for window screen}

The present invention relates to a locking device used in a security screen, and more specifically, by rotating a handle to lock or unlock the hook by fixing it to a strike installed on the window frame of the screen, but by installing a spring on one side of the handle It is a double locking device for a push-type insect screen that allows the handle to be rotated only in a state where the spring is compressed by pressing the handle so that the screen cannot be opened arbitrarily from the outside to perform double locking.

In general, an insect screen is a net that prevents insects such as mosquitoes from invading from the outside of a building to the interior, and there are a general screen that has only insect repellent functions and a security screen that has a method function along with the insect repellent function.

Unlike general insect screens made using aluminum wires with a diameter of 0.2 to 0.3 mm, these security screens are manufactured using stainless steel wires with a diameter of 0.6 to 0.7 mm, so if the screen is locked from the outside, it takes some time to cut it. In particular, even if a part of the screen is cut with a sharp tool, time is spent turning the locking device, so it can play a role of crime prevention.

As a prior art related to the door locking device of the insect screen, there is a sliding type security window or a locking device for the screen door proposed in Public Utility Model No. 20-2010-0006507.

In the public utility model, the door is locked or unlocked by a locking member that is supported by an elastic member and coupled with a locking slide that is operable from the outside, and the locking member is slid against the main body to enable interlocking of the door. In the locking device of, the operation knob 108 of the fastening slide 104 embedded in the fastening member 103 inserted between the main body 101 and the upper cap 102 is located at the rear of the main body and the upper cap 102 The button 113 provided on the upper part of the door is elastically supported by the compression spring 114 so that it cannot be operated with a pin or the like from the outside. Accordingly, since it is possible to limit the moving amount of the fastening slide, there is a problem that the locking state can be easily released when the fastening slide is pushed in the unlocking direction with a tool such as a pin or a screwdriver from the outside.

As another prior art, there is a locking device for a sliding security window or a screen door proposed in Utility Model Registration No. 20-0473456.

In the utility model, a rotating operation knob is provided on the front of the upper cap that is coupled to the main body, and a lever with a bent portion is applied to a locking device for a sliding door configured to retreat according to the rotation of the rotating knob by hooking the locking projection of the fastening slide. In the rotating operation knob 220, the bent portion 221 of the lever 222 is formed with a protrusion 224 having an inclined surface at the bottom, and the lower portion of the release button 130 has an inclined surface 132 at the top. There is proposed a locking device for a sliding security window or screen door, characterized in that the fastening slide 400 is stopped and released by the protrusion 224 and the locking protrusion 131 by forming the jaw 131, and the protrusion of the bent portion There is a problem that the locking force decreases and the device becomes complicated by performing the locking by means of.

Republic of Korea Public Utility Model Publication No. 20-2010-0006507 (released on June 25, 2010) Republic of Korea Utility Model Publication No. 20-0473456 (announced on July 4, 2014)

Therefore, the present invention provides a locking device used for a security screen, but when locking or unlocking by fixing the hook to a strike installed on the window frame of the screen by rotating the handle, a spring is installed on one side of the handle to The purpose of this is to provide a double locking device for a push-type insect screen that allows the handle to rotate only in a state where the spring is compressed by pressing the handle so that the screen cannot be opened arbitrarily from the outside, thereby performing double locking.

In addition, when locking the insect screen, after turning the handle to fix the hook to the strike, the handle is in its original position due to the elasticity of the spring, and the locking protrusion of the handle and the interference protrusion of the body come into contact with each other. Another purpose is to provide a double locking device for a non-press type screen.

In addition, there is another object to provide a double locking device for a push-type insect screen so that the user can rotate more smoothly when the user turns the handle by fitting a bush in the insertion groove of the body to reduce friction against the rotation of the hook. .

The double locking device for a push-type insect screen according to the present invention is a locking device used for a screen, a body fixed to the outer frame of the screen, a handle rotatably coupled to the body, and fixedly coupled to the handle. Consisting of a rotating hook, a stopper limiting the rotation amount of the hook, and a strike fixed to the window frame of the insect screen, the handle is characterized in that the rotational state is limited by an interference protrusion formed on the body 10 to be.

The double locking device for a push-type insect screen according to the present invention provides a locking device used for a security screen, but when the handle is rotated to fix the hook to a strike installed on the window frame of the screen to lock or unlock, the handle A spring is installed on one side of the handle so that the handle can be rotated only in the state where the spring is compressed by pressing the handle.Therefore, there is a remarkable effect of double locking by preventing the screen from being opened arbitrarily from outside. After the hook is fixed to the strike by turning the handle, the handle is repositioned by the elasticity of the spring, and the locking protrusion of the handle and the interference protrusion of the body come into contact with each other. When opening the handle from the outside, it cannot be opened without pressing the handle. There is a remarkable effect in that a bush is fitted into the insertion groove of the hook to reduce friction against the rotation of the hook so that the user can rotate more smoothly when turning the handle.

1 is a perspective view of the overall configuration of the present invention
Figure 2 is an exploded perspective view of the present invention
3 and 4 are partial configuration diagrams of the present invention
5 and 6 is an exemplary view of the operating state of the present invention
7 is a partial cut-away configuration diagram of the present invention

The present invention relates to a locking device used in a security screen, and more specifically, by rotating a handle to lock or unlock the hook by fixing it to a strike installed on the window frame of the screen, but by installing a spring on one side of the handle It is a double locking device for a push-type insect screen that allows the handle to be rotated only in a state where the spring is compressed by pressing the handle so that the screen cannot be opened arbitrarily from the outside to perform double locking.

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

1 is an overall configuration perspective view of the present invention, Figure 2 is an exploded perspective view of the present invention, Figures 3 and 4 are partial configuration diagrams of the present invention, Figures 5 and 6 are exemplary views of the operating state of the present invention , In the locking device for the push-type insect screen according to the present invention, in the locking device used for the screen, the body 10 fixed to the outer frame of the screen, and the handle 20 rotatably coupled to the body 10 ), a hook 30 fixedly coupled with the handle 20 to rotate together, a stopper 15 limiting the amount of rotation of the hook 30, and a strike 40 fixed to the window frame of the insect screen. The handle 20 is characterized in that the rotational state is limited by the interference protrusion 14 formed on the body 10.

First, the body 10 is a configuration that is fixed to the window frame on which the insect screen is installed, and the handle 20 is installed on the body 10 so that it can be rotated around a rotation axis by a user and rotates within a certain angle, The handle 20 and the hook 30 are configured to rotate together, and a part of the rotation of the handle 20 and the hook 30 will be described later with reference to FIG. 7.

The stopper 14 is installed in the body 10 to limit the rotation amount of the hook 30, and two stopper fastening grooves 15a according to the installation position of the double locking device for a push-type insect screen according to the present invention. ) Can be fitted on either side. That is, depending on whether the locking device is installed on the left side or the right side of the window frame, the rotation direction of the hook 30 must be changed, so the rotational range of the hook 30 can be adjusted by changing the fastening position of the stopper 15. .

The strike 40 is fixed to the frame of the screen and is moved like a screen, and locking and unlocking of the screen is performed according to the rotation of the hook 30, and the handle 20 is fastened to the body 10. The rotational state is limited by the interference protrusions 14 formed on the circumferential surface of the cylinder 12.

More specifically, the body 10 has a fastening cylinder 12 protruding upward, an interference protrusion 14 is formed on the circumferential surface of the fastening cylinder 12, and one side of the handle 20 The locking protrusion 21 is formed so as to be caught on the interference protrusion 14, the handle 20 and the hook 30 are fixedly coupled by a fixing bolt 18, and the fixing bolt 18 has a spring 19 ) Is fastened, and when a force is applied to the handle 20 to pressurize in the axial direction of the spring 19, the spring 19 is compressed, and the locking protrusion 21 of the handle 20 only when the spring 19 is compressed. ) Is not caught on the interference protrusion 14, and only when turned in this state, the handle 20 can be rotated around the fastening cylinder 12.

In addition, the hook 30 has a rotation center portion 31 formed with a bolt hole for coupling with the handle 20, a protrusion 32 protruding from one side of the rotation center portion 31, and the rotation center portion ( 31) consists of a wing portion 34 that extends in an arc shape having a certain angle, and the wing portion 34 is caught by the hook hook 41 of the strike 40 by the rotation of the rotation center portion 31 or The jammed state is released.

That is, a protrusion 32 is formed on the end face of the rotation center 31, and a fastening groove 33 penetrating through the protrusion 32 for fastening the fixing bolt 18 and the handle 20 is formed. The wing portion 34 is formed to expand in an arc shape having a certain angle from the rotation center portion 31, and the wing portion 34 is a hook hook 41 of the strike 40 by rotation of the handle 20 ), that is, a locked state as shown in FIG. 6, or a state that is removed from the hook hanger 41 of the strike, that is, an unlocked state as shown in FIG.

Referring to FIG. 7, a groove 22 is formed on one side of the handle 20, and a protrusion 35 formed inside the protrusion 32 of the hook 30 is formed in the groove 22. ) Is inserted, and the protrusion 32 of the hook 30 is fixed to the bush 16, and the spring 19 is inserted into the fixing bolt 18, and through the fastening groove 33 of the hook 30 The handle 20 is joined in a state where a part is inserted, and the bush 16 has an expansion part 16a formed therein, so that the protrusion 32 of the hook 30 is the expansion part 16a of the bush 16 ) Can be prevented from falling out of the insertion groove 13 of the body 10.

Therefore, the handle 20 can be moved in the direction of compressing the spring 19 along the axial direction of the fixing bolt 18, and the protrusion 35 of the hook 30 in the groove 22 of the handle 20 Is inserted so that when the handle 20 is rotated, the hook 30 is also rotated, and the protrusion 32 and the bush 16 are fixed by the force-fitting method, so the bush 16 is also the insertion groove of the body 10 It is rotated along (13), the bush 16 is coupled to the insertion groove 13 of the fastening cylinder 12 in a rotatable state while holding the hook 30, and is inserted when the hook 30 is rotated. By reducing friction with the groove 13, the handle 20 rotates smoothly.

That is, the handle 20 is always being pushed away from the body 10 by the spring 19, and thus the handle 20 is applied in a state where a force is applied to the handle 20 in the direction of compressing the spring 19. ), the friction of the insertion groove 13 is minimized by the bush 16, so that the handle 20 can be smoothly rotated with less force.

Here, the coupling method of the protrusion 32 of the hook 30 and the bush 16 is to insert the protrusion 32 of the hook into the bush 16 and then extend the end of the protrusion 32 to the outside, that is, the bush ( 16) can be expanded toward the expansion portion 16a and then press-bonded so that the protrusion 32 does not fall out of the bush 16. In some cases, the protrusion 32 may be applied to the bush 16. ) Can be fixed by force-fitting method, or can be fixed with adhesive.

The non-explanatory symbol may indicate locking or unlocking according to the rotation direction of the handle 20 as the closing cap 17.

In the end, when the double locking device for the push-type insect screen according to the present invention provides a locking device used for the security screen, but when the handle is rotated to fix the hook to the strike installed on the window frame of the insect screen to lock or unlock , By installing a spring on one side of the handle so that the handle can be rotated only when the spring is compressed by pressing the handle, there is a remarkable effect that double locking can be performed by preventing the screen from being opened arbitrarily from outside, and locking the screen. In this case, after turning the handle to fix the hook to the strike, the handle is repositioned by the elasticity of the spring, and the locking protrusion of the handle and the interference protrusion of the body come into contact with each other. When opening the handle from the outside, it cannot be opened without pressing the handle. There is a remarkable effect in that a bush is fitted into the insertion groove of the body to reduce friction against rotation of the hook so that the user can rotate more smoothly when turning the handle.

10; Body
11. Cover 12. Fastening cylinder 13. Insertion groove
14. Interference projection 15. Stopper 15a. Stopper fastening groove
16. Bush 16a. Expansion part 17. Closing cap
18. Fixing bolt 19. Spring
20; handle
21. Obstacle 22. Groove
30; hook
31. Center of rotation 32. Protrusion 33. Fastening groove
34. Wing 35. Protrusion
40; strike
41. Hook Hanger

Claims (4)

In the locking device used in the insect screen,
The body 10 fixed to the outer frame of the insect screen, the handle 20 rotatably coupled to the body 10, the hook 30 fixedly coupled to the handle 20 and rotated together, and the hook It consists of a stopper (15) to limit the amount of rotation of 30, and a strike (40) fixed to the window frame of the screen, and the handle (20) is formed on the interference protrusion (14) formed on the body (10) The rotational state is limited by this,
A fastening cylinder 12 protruding upward is formed on the body 10, an interference protrusion 14 is formed on a circumferential surface of the fastening cylinder 12, and an interference protrusion 14 is formed on one side of the handle 20. ) Is formed to catch the locking protrusion 21, the handle 20 and the hook 30 are fixedly coupled by a fixing bolt 18, and a spring 19 is fastened to the fixing bolt 18 In this case, when a force is applied to the handle 20 to pressurize the spring 19 in the axial direction, the spring 19 is compressed, and the locking protrusion 21 of the handle 20 is interfering only in a state where the spring 19 is compressed. It does not get caught in (14) and must be turned in this state so that the handle 20 can be rotated around the fastening cylinder 12,
A groove 22 is formed on one side of the handle 20, and a protrusion 35 formed inside the protrusion 32 of the hook 30 is fitted in the groove 22, and the protrusion 32 of the hook 30 ) Is coupled to the bush 16 by a force-fitting method, and a spring 19 is inserted into the fixing bolt 18, and a part of the handle 20 is inserted through the fastening groove 33 of the hook 30. It is connected in a state, and the bush 16 has an expansion part 16a formed so that the protrusion 32 of the hook 30 is inserted into the body 10 by the expansion part 16a of the bush 16 (13) A double locking device for a push-type insect screen characterized in that it can be prevented from falling out.
delete The method of claim 1,
The hook 30 has a rotation center portion 31 having a bolt hole formed for coupling with the handle 20, and a protrusion 32 protruding from one side of the rotation center portion 31, and the rotation center portion 31 It is made of a wing portion 34 that is extended in an arc shape having a certain angle in, and the wing portion 34 is caught or caught by the hook hanger 41 of the strike 40 by the rotation of the rotation center portion 31 Double locking device for a push-type insect screen, characterized by the release of.
delete

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