KR101130655B1 - Auto lock device of draw latch for door - Google Patents

Abstract

PURPOSE: An auto lock device of a latch and a draw for a door is provided to reduce manufacturing costs and assembly processes. CONSTITUTION: A fixing pin is protruded from the bottom side of a key box(210). A slide member(220) includes an installation hole with the fixing pin and is contacted with the bottom side of the key box. The slide member is protruded to be fitted to a locking hole(110) and forms a cam unit(222). A spring(230) is arranged in the installation hole. A cover member(240) is fixed to the fixing pin to prevent the separation of the slide member.

Description

AUTO LOCK DEVICE OF DRAW LATCH FOR DOOR}

The present invention relates to an automatic lock device for a door drawer and a latch for preventing leakage from an enclosure such as a communication repeater or a traffic light controller that is installed outdoors. More specifically, the cam simply presses the handle body even without a key. An apparatus for locking doors and latches, which is improved to maintain the airtightness by allowing the sliding member of the structure to be automatically locked as it flows.

In general, the draw and latch (Lraw Latch) is installed in a housing such as a communication repeater or a traffic light controller having a sliding door to facilitate the opening and closing of the door, in particular to maintain the airtight when closed so that water or dust does not penetrate. It is one of the locking devices.

For example, the draw and the latch, as shown in Figure 1, the base 10 which is fixed to the housing (B), the handle body 20, the handle body 20 and the hinge body rotatably hinged to the base 10 and Hinged and fixed by the striker 40 fixed to the door (A) is fixed or released is locked to bind the enclosure (B) and the door (A) to lock the door (A) to maintain a closed state without opening The latch 30 is configured to include.

Thus, when opening the door (A) by inserting a key into the key box provided on the upper surface of the handle body 20 to rotate in the opening direction, the binding state between the handle body 20 and the base 10 is released, the handle in this state By lifting the main body 20 so that the tip of the latch 30 is out of the striker 40, the latching state between the latch 30 and the striker 40 can be easily released. When the latch 30 is released, the door ( A) can be opened easily.

On the other hand, when the door A is closed, the handle main body 20 is adjusted in a state where the latch 30 is caught by the striker 40 while the handle main body 20 is lifted up as in the opening. By rotating the key in the locking direction after the counterclockwise movement toward the base 10, the handle body 20 and the base 10 are bound to each other, thereby allowing the door A to be closely attached to the housing B.

However, this structure is inconvenient in use because the handle main body 20 can not be bound to the base 10 when the key box is kept in a locked state by using a key, and the key is separated, and thus the perfect confidentiality cannot be maintained. There is a high risk of malfunction due to moisture or foreign matter penetration, and there is a high risk of theft.

In order to improve this, Registration No. 0450979 has been disclosed.

As disclosed in Figure 2, as shown in Figure 2, the handle guide plate 60 is installed on the lower portion of the handle body 20, the guide guide groove is provided with a locking projection (24a) of the key box 24 in the locking guide plate 60 Forming 86, it can be seen that the configuration having a pair of springs (72a, 72b) elastically supported to flow the locking projection (24a) inserted into the guide groove (86).

Thus, even when the key box 24 is locked, when the handle main body 20 is pressed against the bent state of the base 10, the locking guide plate 60 having the upper end of the base 10 in contact with the springs 72a and 72b. Resilient retraction while being greater than the elastic support of the, and then the bent portion of the locking guide plate 60 passes over the top of the base 10 and then inserted into a rectangular hole (not shown) formed in the bent surface of the base 10 Locking state is achieved.

Therefore, even if the key is locked while the keybox is locked due to a mistake or various situations during operation, the auto lock is enabled, and thus the convenience of use is enhanced and the safety is improved.

However, the disclosed example has a complicated structure, a lot of manufacturing man-hours, a manufacturing cost is increased, as well as a large number of parts, there is a complicated assembly disadvantage.

In addition, since the structure of the draw and latch for the existing door has been significantly improved, it is necessary to manufacture a new mold. Therefore, the cost burden is considerable, and the assembly procedure is difficult and difficult. .

The present invention was created in view of the above-mentioned problems in the prior art, and was made to solve this problem. It is necessary to make minor modifications without the need to save time according to design, mold cost, as well as its simple structure and easy assembly. There are major challenges.

The present invention is a means for achieving the above problems, a base having a locking hole in the vertically bent portion of the fixed and vertically bent on the door side of the outdoor enclosure including the repeater, traffic light controller of the communication device, hinged to the base and the locking The door is used to lock the door of the outdoor enclosure, consisting of a handle body having a key box inserted therein and having a key box, and a latch engaged to the handle body and latched by a striker fixed to the body side of the enclosure. For draws and latches; First, second and third fixing pins protruding from the bottom surface of the key box; It has an installation hole including the first, second, and third fixing pins, and is interviewed with the bottom surface of the key box, the edge portion of the cam projecting to be fitted into the locking hole to form a cam portion, the end of the cam portion A slide member rounded in a direction and designed to contact a vertically bent portion of the base; A spring disposed in the installation hole, one end of which is fixed to the first fixing pin and the other end of which is fixed to a corresponding inner wall side of the installation hole; It provides an auto-lock device of the draw and latch for the door, characterized in that it comprises a cover member fixed to the first, second, third fixing pins with the slide member therebetween so that the slide member is not separated.

In this case, the first, second and third fixing pins are disposed to form an isosceles triangle with the first fixing pin as a vertex, and the second and third fixing pins are formed on both inner wall surfaces of the installation hole. It is also characterized in that it is disposed in contact with each other and guides when the slide member is slid.

In addition, the first, second and third fixing pins are also characterized in that the cover member is fixed in the form of rivets.

According to the present invention, while using the structure of the draw and latch for the existing door almost as it is to install the cam-type sliding member of a simple structure to the key box to perform the auto lock function to secure the competitiveness of the product, manufacturing cost It is possible to reduce the assembly time and reduce the assembly work.

Figure 1 is an exemplary view showing an example of the use of the draw and latch for the door according to the prior art.
2 is an exemplary exploded perspective view showing an autolock device of the draw and latch for the door according to the prior art.
3 is an exemplary perspective view of a draw and latch for a door according to the present invention.
Figure 4 is a side cross-sectional view showing an example of an automatic lock device for the draw and latch for the door according to the present invention.
5 is a bottom view illustrating an example in which an automatic lock device for a door draw and a latch according to the present invention are installed.
Figure 6 is an enlarged view of the main part showing an operating state diagram of the door lock and the autolock device of the latch according to the present invention.

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

As shown in Figures 3 to 5, the draw and latch for the door according to the present invention is a base 100 which is fixed to the door side of the enclosure, such as an outdoor communication device, the handle body hinged to the base (100) 200, a latch 300 coupled to the handle body 200 and the front end is fixed to the striker 400 (see Fig. 4) fixed to the main body side of the enclosure to perform a door locking function.

At this time, one end of the base 100 is vertically bent a certain length, the bent portion is formed with a hole for the locking hole 110 for performing a locking function, which is the same structure as before.

And, the base 100 is coupled to the handle body 200 while rotating as shown in FIG.

However, since the base 100 is fixed to the door side of the enclosure, the handle body 200 is actually coupled to the base 100 while being rotated.

In addition, a hole (not shown) which is vertically penetrated in place of the handle body 200 is processed, and a key box 210 is inserted into the hole.

The structure so far is not different from the draw and latch for the door disclosed so far.

In the present invention, a function that can be auto-locked to the base 100 in conjunction with the key box 210 is further implemented.

To this end, in the present invention, as shown in Figures 4 to 5, the cam-shaped sliding member 220 is installed on the lower portion of the key box 210, the sliding member 220 is a spring 230 It is installed elastically and the sliding member 220 is configured such that the cover member 240 is padded so that the spring 230 is not separated.

At this time, the sliding member 220 and the cover member 240 is formed in a substantially circular shape, in particular, the cam portion 222 protrudes on a part of the edge of the sliding member 220 to the base 100 in accordance with the rotation direction It is configured to be inserted or fixed to the lock hole 110 formed.

In this case, since the sliding member 220 and the cover member 240 are integrally formed with the key box 210, the key box 210 is rotated together when the key box 210 is rotated. Rotation in the locking direction, while the sliding member 220 is rotated counterclockwise in FIG. 5, the cam part 222 is fitted into the locking hole 110 to be locked to maintain the locked state. When the key box 210 is rotated in the opening direction, the cam member 222 is pulled out of the locking hole 110 while the sliding member 220 is elastically deformed in a form in which the spring 230 is compressed when the sliding member 220 is to be rotated in the clockwise direction. The lock is released.

To this end, both left and right sides of the cam portion 222 is rounded to have a gentle slope.

More specifically, as shown in Fig. 6 (a) showing the key box 210 is opened using the key, and Fig. 6 (b) in which the key box 210 is kept locked, In the center of the slide member 220, a predetermined size of the installation hole (H) having a rectangular shape is formed perforated.

In addition, a plurality of fixing pins integrally formed on the bottom surface, ie, the bottom surface of the key box 210, are formed to protrude from the installation hole H, and the fixing pins have a substantially triangular shape when connected to each other in a straight line. To form the first, second, third fixing pins (224, 226, 228).

At this time, one end of the spring 230 is fixed to the first fixing pin 224, and the second and third fixing pins 226 and 228 are in a straight line to form an isosceles triangle with the first fixing pin 224 as a vertex. It is spaced apart, the spring 230 is arranged on the spaced apart, the installation hole (H) is installed to be slid by using the second, third fixing pins (226, 228).

That is, both inner wall surfaces of the installation hole H are disposed to contact each of the second and third fixing pins 226 and 228.

In addition, the other end of the spring 230 is fixed to the inner wall surface of the opposite side of the installation hole (H).

In addition, the first, second and third fixing pins 224, 226, 228 are also responsible for fixing the cover member 240 in addition to the above-described functions, and preferably, the cover member 240 may be fixed in a riveted form. .

Accordingly, the sliding member 220 is installed to be movable between the bottom surface of the key box 210 and the cover member 240.

The present invention having such a configuration has the following operational relationship.

First, a process of binding or releasing the latch 300 according to the present invention to the striker 400 is made in the form as illustrated in FIG. 1, which is a generalized structure.

That is, in order to release the binding state, the cam box 222 is separated from the locking hole 110 of the base 100 by rotating the key box 210 clockwise using the key as shown in FIG. Keep to have.

Then, when lifting the rear end of the handle body 200 shown in Figures 3, 4, 5 in the upward direction, the handle main body 200 is spaced from the base 100, half the center of the hinge point with the base 100 Rotate clockwise.

Accordingly, the latch 300, which is hinged to the handle body 200, moves slightly forward, and the inner end of the latch 300, that is, the portion caught on the striker 400 is pushed forward and the striker 400. There is a clearance, and when the latch 300 is lifted in this state, the jammer is released because it is not caught by the striker 400.

The door of the enclosure can then be opened and the necessary work can be performed.

In this state, when the door of the enclosure is to be locked, the above-described opposite operation may be performed.

That is, when the handle body 200 is lifted up, the latch 300 is lowered and positioned at the front end of the striker 400, and then the handle body 200 is pressed while rotating the handle body 200 clockwise. (100) is moved to the end, the vertical bent portion of the base 100 is finally inserted into the handle main body 200, in that state by turning the key box 210 as shown in Figure 6 (b) The locking is completed while the cam part 222 is inserted into the locking hole 110 while being rotated clockwise.

By the way, if the handle body 200 is not coupled with the base 100 during this process, but the key has been operated to keep the key box 210 locked, the handle body 200 and the base 100 are Since they cannot be combined, they cannot perform a perfect lock.

In some cases, even though the handle body 200 is slightly placed on the base 100, the operator may easily be mistaken in the locked state because the handle body 200 seems to be locked, and the work is completed and moved to another place. There may be.

In order to solve this problem, even if such a situation occurs, simply pressing the handle body 200 lightly, the key box 200 is in the locked state or the open state regardless of whether the handle body 200 and the base ( 100) are always configured to remain inserted into each other.

That is, as shown in (b) of FIG. 6, even when the key box 200 is locked, the round cam portion 222 is in contact with the vertically bent upper end of the base 100 even when the key box 200 is locked.

At this moment, when a little more force is applied, the cam part 222 tries to push inward. At this time, as the spring 230, which is an elastic means, elastically deforms, the slide member 220 slides as shown in the dotted line, and the cam part 222 is the base. The cam part 222 enters the locking hole 110 of the base 100 regardless of whether the key box 210 is locked because the locking state is released while moving inside the vertical bent portion of the 100. At the same time, it maintains a secure lock.

In this way, when the cam portion 222 is fitted into the locking hole 110, the spring 230 is elastically returned again so that the locked state can be continuously maintained.

Thereafter, the worker may pull out the key from the key box 210.

Of course, if the key box 210 is locked in the open state, of course, the locking operation can be performed without any problem, and the key is pulled out after the locking operation.

As described above, the present invention is equipped with an auto-lock function, the structure of the existing draw and latch almost as it is, only by simply adding the fixing pin, the slide member and the cover member can implement the auto-lock function in a simple structure to mold There is no need to make a new production, the manufacturing cost is low, the structure is simple, the operation is simple and safe, it is expected to increase the usability and ease of use.

100: base 110: locking hole
200: handle body 210: key box
220: slide member 230: spring
240: cover member 300: latch
400: Striker

Claims (3)

A base 100 having a locking hole 110 at a portion fixed and vertically bent to a door side of an outdoor enclosure including a repeater and a traffic light controller of a communication device, hinged to the base 100, and the locking hole 110 Has a vertical bending portion is inserted into the handle body 200 having a key box 210, the hinge 300 is hinged to the handle body 200 and latched to the striker 400 fixed to the main body side of the enclosure A draw and latch for a door configured to be used to lock a door of an outdoor enclosure;
First, second and third fixing pins 224, 226 and 228 protruding from the bottom surface of the key box 210;
Has a mounting hole (H) including the first, second, third fixing pins (224, 226, 228), is interviewed on the bottom surface of the key box 210, so that the edge portion can be fitted into the locking hole (110) A slide member 220 which protrudes to form a cam portion 222, and an end portion of the cam portion 222 is rounded upward to be in contact with a vertically bent portion of the base 100;
A spring 230 disposed in the installation hole H, one end of which is fixed to the first fixing pin 224, and the other end of which is fixed to a corresponding inner wall side of the installation hole H;
A door comprising a cover member 240 fixed to the first, second and third fixing pins 224, 226, 228 with the slide member 220 therebetween so that the slide member 220 is not separated. Drawer and latch autolock device.
The method according to claim 1;
The first, second and third fixing pins 224, 226, 228 are disposed on the first fixing pin 224 to form an isosceles triangle, and the second, third fixing pins 224, 226, 228. 226 and 228 are arranged to be in contact with each of the inner wall surfaces of both sides of the mounting hole (H), respectively, and guides when the slide member (220) is sliding.
The method according to claim 1 or 2,
The first, second, and third fixing pins (224, 226, 228) of the draw lock for the door, characterized in that the rivets to lock the 240 auto-lock device.

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