KR200276550Y1 - Multiple Manhole Locker - Google Patents

Abstract

The present invention relates to a manhole locking device that maintains the state of the manhole from a person other than the person concerned by installing a separate locking device on the inner lid of the manhole. The improved locking bar relates to a manhole multiple locking device having a predetermined inclination angle.

This manhole multiple locking device can be easily used with a pickaxe or lever for the clearance between the inner jaw and the lid in the manhole. It is an improvement of the problem of opening or locking bar bent. It is possible to give multiple keys three or more irregularities per floor so that the manhole cover is opened by rotating only when the irregularities of the multiple keys match the positions of the fixing plate and the rotating plate of the key bundle. In addition, since the latch locked to the inner jaw of the manhole has a predetermined angle of inclination, the contact is always in close contact with the manhole even when the thickness of the inner jaw is not constant, thereby preventing the opening and closing of the lid in the manhole by a similar tool. There is no gap between the inner lid and the manhole lining, so it is forced open from the outside or the locking latch It provides multiple manhole locks can prevent the hand.

Description

Manhole Multiple Locks {Ｍｕｌｔｉｐｌｅ Ｍａｎｈｏｌｅ Ｌｏｃｋｅｒ}

The present invention is a manhole of the underground communication line that absolutely requires security such as communication failure prevention and eavesdropping prevention, by installing a separate locking device in the lid of the manhole to maintain the security of the manhole from persons other than the related parties The present invention relates to a manhole multiple locking device having a predetermined inclination angle, in particular, a locking latch having improved locking performance due to the peculiarity of the key lock and the locking latch shape of the locking device.

In general, a manhole is installed on the road for maintenance of underground facilities such as communication cables or power cables buried underground, and an inner lid is installed along with a separate locking device under the outer cover of the manhole.

The installation of the inner lid together with a separate locking device in such a manhole, with the recent rapid development of the IT industry, is an optical communication transmission system and transmission line using economical optical fiber that can transmit a large amount of data at high speed rather than wireless communication using airwaves. This is because security is becoming more important.

However, the manhole locking device to protect it is a simple structure, easily open the locking device from the outside or forcibly open due to the weakness of the structure, which is only a vulnerable level that the device is broken.

Accordingly, the present invention is to provide a manhole multiple locking device that improves the problems of Patent Nos. 99-018954, 98-068941 and 2000-008787 have already been filed by the applicant.

Looking at this, the patent No. 99-018954 is a manhole locking latch is formed in an arc-shaped plane, the key groove on the side of the latch is a hexagonal shape, the key is formed in a hexagon corresponding to the key hole.

In addition, the practical 98-068941 has a cross-shaped rod formed in a rectangular plane and has a tracer round bar fitted with a circular pipe at the inner end of the latch to operate the rectangular flat bar, and the key for retracting the round bar is a card. It consists of a key in a zigzag form.

In addition, Utility Model No. 2000-008787 is formed in the shape of a rectangular flat bar and the actuation key is made of hunger shape.

These manhole locking devices are either circular or rectangular in shape, and allow a gap between the lid and the top of the manhole inner jaw, making it easy to use a pickaxe or lever from the outside. The lid has a structure that can open or forcibly open, which has a problem that the lock latch is bent and broken open.

In addition, since the key bundle of the locking device has a simple function of a square or hexagonal structure, there is a problem that the lid in the manhole can be opened relatively easily with a similar tool such as a simple hexagon, square or hook.

Therefore, the present invention is designed to solve the conventional problems at the same time to ensure a close contact with the manhole lining by always designing the lock of the key lock of the mandrel of the lid locking device in the manhole and a predetermined inclined surface on one side. An object of the present invention is to provide a manhole multiple locking device that prevents the user from easily opening the lid in the manhole.

1 is a cross-sectional view of the lock installation device showing an embodiment of the present invention

Figure 2 is a perspective view of the lock of Figure 1 of the present invention in detail

3 is a perspective view of the inner lid of the locking device of FIG.

4 is a cross-sectional view of the lock latch operation of the present invention

Figure 4 (a) is a cross-sectional view of the locking latch of the present invention mounted on the manhole lining

Figure 4 (b) is a cross-sectional view of the locking latch of the present invention released to the manhole lining

Figure 4 (c) (d) is a plan view showing the operation of the elastic member and the rotating plate for attaching and detaching the locking latch of the present invention to the manhole lining

Figure 5 (a) is a cross-sectional view of the multi-key and key bundle of the present invention

Figure 5 (b) is a key rotating plate and the elastic member assembly of the present invention

6 is a cross-sectional view of the double lock latch operation of the present invention

Figure 6 (a) is a plan view of a double locking latch of the present invention

Figure 6 (b) is a cross-sectional view of the internal locking latch of the double latch in this article is mounted on the manhole mounting jaw

Fig. 6 (c) is a cross-sectional view of the external locking latch of the double latch of the present article mounted on the manhole anchorage

Figure 7 is a locking device mounted in three directions on the inner lid bottom of the present invention

Figure 8 (a) is a cross-sectional view of the lock latch of the present invention (closed) state

Figure 8 (b) is a cross-sectional view of the lock latch of the present invention open (release) state

-Explanation of symbols for the main parts of the drawing-

1. Manhole frame 2. Outer lid

3. inner jaw 4. inner lid

5. Lock 6. Multikey

7. Handle 8. Locking Latches

9. Key inlet 10. Bundle of keys

11. Key Jaw 12. Box

13. Key hole cover 14. Sheath holder

15. Operation wire 16. Spring fixing jaw

17. Key Bundle Cover 18. Key Tumblers

19. Spacers 20. Guide pins

21. Key swivel return spring 22. Latches return spring

23. Key retention plate 24. Arc slot

25. Settlement 26. Key irregularities

27. Key end 28. Double latch

The manhole multiple locking device according to the present invention for achieving the above object, the same shape as the manhole is provided with two handles on any one side of the upper surface of the inner lid and the inner lid for the manhole on the bottom side one side of the manhole In the inner lid of the manhole provided with a locking latch to be attached and detached by the multi-key operation, one side is predetermined to be attached to the bottom surface of the inner lid for the manhole and to be easily attached to the manhole lining by the multi-key rotation means A locking key having an inclination angle of the key, and an upper surface of the inner lid for the manhole, a multi-key having a key insertion hole for inserting a multi-key formed at a position opposite to the locking bar to open and close the locking bar, and a multi-layer uneven part; Keys with a lock function of the key means for opening and closing the door and having an arc-shaped slot which can be rotated to face the unevenness of the multilayer structure. A key bundle comprising a key bundle protection plate having a pair of guide pins for supporting and guiding the rotating plate and the key holding plate; Rectangle fixed to a predetermined bottom portion of the inner lid disc for the manhole, and is mounted in three directions to closely guide the front and back to the manhole mounting jaw to lock the locking latch coupled with the operation wire and the elastic member to be easily operated by the key rotation means It is achieved by a manhole multiple locking device characterized in that the protective tube is configured.

Hereinafter, an embodiment of the manhole multiple locking device of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a cross-sectional view of the entire manhole multiple locking device installation showing a preferred embodiment of the present invention, Figure 2 is a perspective view of the locking device of Figure 1 of the present invention in more detail, Figure 3 is a locking device of Figure 2 A perspective view of the lid, Figure 4 (a) (b) (c) (d) is a cross-sectional view of the operation of the locking latch of the present invention, Figure 5 (a) (b) is a key bundle of the present invention and a three-piece key rotating plate cross-sectional view 6 (a) (b) (c) is a cross-sectional view of a double locking latch operation, FIG. 7 is a bottom view of a locking device mounted in three directions on the inner lid of the present invention, and FIG. 8 (a) (b) shows a locking latch. It is sectional drawing which shows the closing (attachment) and the opening (release) of.

First, as shown in FIG. 1, the manhole multiple locking device according to the present invention includes a manhole frame 1, an outer lid (main lid) 2, an arthropod 25 and a settle 3, and an inner lid ( 4), multiple key (6), a pair of handles (7), locking latch (8), key bundle (10), Fig. 5 (a) (key) built-in key bundle protective plate 17, elastic member ( 21 and 22, a keyhole cover 13, and a rectangular protective tube 12.

Such a configuration is provided with a stand 25 is provided inside the manhole frame 1, the main lid 2 is placed in the stand 25 so as to be openable and open, and the set foot 3 of the stand 25 ) Is to be combined with the inner lid (4) for the manhole.

Typically, the inner lid 4 for the manhole, which is coupled to the settling jaw 3 of the settable 25 in the manhole frame 1, has two handles 7 formed on either side of the upper surface thereof, The locking bar 8 which is locked to the settling 3 is formed in a rectangular plane or an arcuate plane.

This locking latch is a device that is caught by the settling jaw 3 of the manhole. As described above, most of the locking bars are configured by a rectangular plane or an arced plane, which are easily bent due to external physical factors, so that the locking function is often lost. .

However, in the present invention, the locking latch 8 of the locking device is designed in a special shape so as to have a predetermined inclination angle with respect to one side rather than a rectangular plane or an arc plane as in the prior art, so that it is always in close contact with the manhole mounting jaw 3. Its feature is to provide a manhole multiple locking device that ensures contact and prevents the lid 4 from being easily opened from the outside.

Here, the locking device, which may be a feature of the present invention, will be described in more detail with reference to FIGS. 2 and 5 (a) and (b).

The manhole inner cover (4) is installed on the bottom surface of the disc, the key bundle 10 is composed of a key rotating plate 18, the spacer 19 and the key fixing plate 23 to the key bundle protection plate 17 By a bolt on the bottom of the lid in the manhole to match the key insertion hole (9),

In addition, the key rotation plate 18 is fitted to the two guide pins 20, and is coupled to one side of the operation wire 15, and, on the other side of the operation wire 15, the locking latch (8) The inner end of the loosely coupled to the key rotating plate return spring 21 is coupled to, and one side of the key rotating plate return spring 21 is coupled to the engaging jaw of the elastic member at the tip of the protective tube (12).

At this time, the locking latch (8) is mounted on the opposite side of the inclination angle that is engaged with the settling (3) of the manhole, two elastic members are mounted, one is a key rotation plate return spring 21 and coupled with the operation wire 15, The other is the latch return spring 22 (see Fig. 4 (d)). All of these springs are coupled to a spring fixing jaw 16, one side of which may be mounted at the tip of the protective tube 12.

Mounting the elastic members 21 and 22, the key concave-convex portion 26, which is inserted through the key insertion hole 9, is easy to maneuver the locking latch 8 by the key rotation plate return spring 21 Elastic force to be attached and detached (3), in particular, one side of the key rotation plate return spring 21 of the operation wire 15 is passed through the through hole of the locking latch 8 without fixing to the locking latch 8 When the locking latch 8 is coupled to only one side and the locking latch 8 is locked, even if the contact position of the inclined surface of the locking latch 8 that is in contact with the manhole settling 3 is changed depending on the thickness of the settling 3 of the manhole. By returning the key rotating plate 18 connected to one side of the operation wire 15 coupled with the key rotating plate return spring 21 to the original position by the elastic force of the key rotating plate return spring 21, the key located at the center of the three rotating plates The insertion opening 9 is aligned to facilitate reinsertion of the key.

In addition, referring to Fig. 8 (a) (b), the locking latch 8 is slid in the rectangular protective tube 12 fixed in three directions by the protective tube holder 14 to the bottom surface of the lid in the manhole. It is composed of a loose coupling so that the front and back by close contact.

At this time, the front and rear close contact motion of the locking latch 8 is integrally coupled with the operation wire 15 and the elastic member 21, 22 and the key rotation plate of the arc-shaped slot, and the settling jaw (3) of the manhole by the key turning means It is configured to be easily removable.

Here, the locking latch 8 is, as shown in FIG. 6, by adding one more latching protrusion of the same shape to the inside of the locking latch 8 in the rectangular guide tube 12, the double locking latch ( 28).

FIG. 6 (a) shows a double locking latch (8) 28, and FIG. 6 (b) (c) shows the locking latch (8) (28) on the settling (3) of the manhole. ) Is shown.

As such, the double locking latch 28 accommodates the various thicknesses of the manhole settling 3 so as not to allow space between the inner lid 4 for the manhole and the top surface of the manhole settling 3. This is to prevent the mandrel from being opened forcibly by using a pickaxe or lever from the outside.

In addition, when the double locking latch 8 is a thinner settling 3 which is not installed in close contact with the inclination angle of the locking latch 8, the locking latch 8 and the double locking latch 28 are the return springs. (22) extends in the direction of the mandrel of the manhole frame, the locking latch 8 does not contact the inner jaw (3), only the inclined surface of the double locking latch 28 is in close contact with the lower jaw (3) manhole The upper surface of the jaw 3 and the inner lid 4 for the manhole can be sufficiently intimately closed without any space or allowance, and the possibility of any physical forced opening from the outside is excluded.

In addition, with reference to Figures 5 and 2, to describe in detail the multi-key 6 and the key bundle 10 that can be characterized as a manhole multiple locking device of the present invention,

The multi-key 6 is a collapsible socket type as shown by the reference numeral 6 of FIG. 2 and the reference numeral 6 of FIG. 5 and rotates in contact with the key rotating plate 18 and the key fixing plate 23 of the key bundle 10. The uneven part 26 forms the unevenness of the multi-stage.

In addition, the multi-key 6, the shape of the key concave-convex portion 26 can give a thickness and position change for each step, and the spacer between the key rotation plate 18 and the key fixing plate 23 of the key bundle (10) They are arranged in a special form to open and close the locking device at the mutually aligned points by arranging according to the thickness and position change of the multiple keys.

In addition, the key bundle 10 of FIG. 5 (a) of the present invention has a multilayer structure that is rotated by the rotational force of the multiple keys 6, and is not suitable for the key rotating plate 18 having an arc-shaped slot 24. When the key is inserted, a multi-layer key holding plate 23 is provided to prevent rotation of the key. The key bundle 10 includes a rectangular protective tube 12 at a predetermined portion of the bottom surface of the inner lid disc 4 for manholes. It is configured to interlock with lock bars 8 which are fixedly attached to each other in three directions, and the lock bars 8 are formed in duplicate according to the thickness of the manhole frame settle (3).

In addition, the key rotation plate return spring 21 integrated with the operation wire 15 for connecting between the key rotation plate 18 and the locking latch 8 to operate back and forth is loosely coupled to one end inside the locking latch 8. When the locking latch 8 is locked to the manhole settling 3, even if the forward movement of the locking latch 8 is not constant, the key holes of the key rotating plate 18 are aligned by the elastic force to insert the multiple keys 6. It is configured to easily return the key rotating plate 18 to the home position, and is also composed of a latch return spring 22 for returning the locking latch 8 to the locked state,

The locking latch 8 installed in the three directions is connected to each other by the different key rotation plates 18, the respective operation wires 15, and the rotation plate return springs 21, so as to be opened by the rotation of one key rotation plate 18. Instead, it is composed of a structure that is operated simultaneously by three key rotation plates.

In addition, the locking latch 8 is always in close contact with the bottom of the manhole mounting jaw (3) at a predetermined inclination angle does not allow a gap with the manhole, so that the entire manhole multiple locking devices are in close contact with the manhole to prevent random opening and closing of the manhole. It has its features.

Looking at the action of the constituent means in more detail, the multi-key 6, the key concave-convex portion 26 is formed, the key rotation plate 18 and the key fixing plate according to the different thickness and position of each concave-convex As the arrangements of the 23 and the spacers 19 are different, a large number of multiple keys 6 having different opening and closing functions can be configured.

In addition, when the multi-key 6 is inserted into the key insertion hole 9, the diameter of the key end opening 27 is formed to be smaller than the uneven diameter of the bottom of the multi-key 6, so that the excessive number of the multi-key 6 When the rotary plate 18 is rotated by the unevenness of the multi-key 6, the arc-shaped slot 24 coupled to the guide pin 20 is prevented from being inserted into the multi-key 6 by the guide pin 20. To protect each moving part of the locking device by preventing excessive rotation of

In addition, the open rotational movement of the key rotating plate 18 by the multi-key 6 is pulled in a straight line to the operating wire 15 coupled to one side, the rotating plate return spring coupled to another side of the operating wire 15 ( Since the diameter of 21 does not pass through the through hole of the locking bar 8, the locking bar 8 is loosened and the loosely coupled locking bar 8 is pulled, and the turntable return spring 21 is expanded, and the manhole settling 3 The lock latch 8, which is always in contact with it, is retracted to the center of the lock 5, and the latch return spring 22 is also inflated to open the multiple lock.

In addition, the closed rotational motion of the key rotating plate 18 by the multi-key 6 is locked by the contracting motion of the latch return spring 22 which has been expanded by the opening rotational motion in the reverse order of the opening rotational motion 8. By advancing) outwards, the multiple locking device is locked, in which the rotating plate return spring 21 contracts but the locking latch 8 does not affect the locking movement and returns the key rotating plate 18 to its home position. You will only exercise.

In addition, in order to keep the locking device 5 of the present invention in an open state during installation, the socket lever of the multi-key 6 is lowered toward the inner lid 4 for the manhole so as to be caught by the key fixing jaw 11.

In addition, the predetermined angle of inclination of the locking cladding 8 is inclined between the inner end of the inclined surface and the bottom of the inner jaw 3 of the manhole frame 1 according to the thickness of the settling jaw 3 of the manhole frame 1. It does not allow an insertion space such as a lever because the space between the inner lid 4 for the manhole 4 and the upper surface of the upper jaw 3 of the manhole frame 1 is always in contact with the contact hole.

If the settling 3 of the manhole frame 1 is not in close contact with the settling of the manhole 3 at the inclination angle of the locking latch 8, as an example, which can accommodate this, another double The locking latch 28 is installed in the locking latch 8 so that the double locking latch 28 contacts the bottom of the settling 3 of the manhole frame 1 with an inclined surface, and the locking latch 8 is the return spring of the latch. By 22 it is just parallel to the outside of the double locking latch 28.

As described above, the manhole multiple locking device of the present invention includes the operation wire 15 and the latch coupled to the key rotation plate 18 and the key fixing plate 23, the locking latch 8 and the rotation plate return spring 21, which are locking projections. The return springs 22 are coupled in a stable position in three directions, respectively, and are opened only when three or more key rotation plates 18 are rotated at the same time as a key having three or more uneven parts, such as a simple hexagon, square or hook. Cannot be opened with similar tools,

In addition, a predetermined inclined surface of the locking latch 8 and the double locking latch 28 accommodates the thickness of the settling 3 of the manhole frame 1 so that the bottom surface of the manhole settling 3 is always in intimate contact. As a result, the space between the inner lid 4 for the manhole and the upper surface of the settling 3 of the manhole frame 1 is eliminated, so that it is difficult to open as another similar object such as a pickaxe or a lever, and the security is very high.

As described above, although the technical idea of the present invention has been described in detail with reference to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not for the purpose of limitation in various embodiments.

As described above, the manhole multiple locking device is relatively easy to be opened by a similar tool such as a simple hexagon, square or hook with a locking device composed of a conventional hexagonal, square or gear type key bundle and a rectangular plane or an arc of a flat plane. In order to allow the gap between the top of the manhole jaw and the lid in the manhole, it is possible to use a pickaxe or a lever to improve the problem of forcibly opening or bending the lock bar. By varying the thickness and position of the unevenness, various concavities and convexities are rotated only when the unevenness of the multi-keys coincides with the positions of the fixed plate and the rotating plate of the key bundle to open the inner lid for the manhole, and fixedly fixed to the bottom of the inner lid in three directions. 3 rectangular protective tubes increase the strength by preventing the inner lid from bending and breaking, and also secures the manhole Since the cladding locks close to the bottom of the jaw to form a predetermined angle of inclination, the contact is always in close contact with the manhole even when the thickness of the jaw is not constant. It is effective to maintain the security of the manhole by preventing the forcible opening in the lock bar due to this or by breaking.

Claims (8)

In the inner lid of the manhole provided with a handle on the upper surface of the inner lid made of the same shape as the manhole, and the inner lid for the manhole on the bottom side of the manhole can be attached and detached by the key operation, A key bundle attached to a center of the inner lid for the manhole and rotating by a key as a rotation means, the key bundle being a rotation means composed of a multi-layer key rotation plate and a key fixing plate for detaching and operating a locking latch as a locking means to the manhole through an operation connection part; An actuating connecting means for transmitting the rotational force of the rotating plate of the key bundle to a locking latch which is a locking means, an actuating connecting portion consisting of an actuating wire latch return spring rotating plate return spring, Locking means that is a locking latch having a predetermined angle of inclination mounted with the protective tube in three directions on the bottom of the inner lid detachable to the manhole lining by the linear motion transmitted from the operation connecting portion; The manhole multiple locking device, characterized in that it is configured as a multi-key opening and closing means having a multi-layered concave-convex structure for opening and closing the key bundle and the operation connecting portion, and the locking latches organically connected to the bottom of the inner cover for the manhole. 2. The key bundle according to claim 1, wherein the key bundle is composed of a key bundle plate, a key fixing plate, and a key bundle protection plate having guide pins, and the key rotation plate is composed of three or more multilayers, and each key rotation plate forms a key insertion hole in the center thereof. A manhole multiple locking device characterized by having two arc-shaped slots and a working wire fitting hole at the edge of the rotating plate. 2. The manhole multiple according to claim 1, wherein the actuating connecting portion is made of an actuating wire, a key rotation plate, a return spring, a protective tube holder and a protective tube, and a protective tube having a spring fixing jaw increases the strength by preventing bending and breakage of the inner lid. lock. 2. The manhole multiple locking device according to claim 1, wherein the locking latch has a predetermined inclination angle, is fitted with a latch return spring, and has a working wire through hole. The manhole multiple locking device according to claim 1, wherein the multi-key is formed with three or more irregularities in the insertion part so that the key can be opened with the key fixing plate and the key rotating plate so as to be properly configured and not suitable as an uneven key. . 5. The manhole multiple locking device according to claim 4, wherein a double locking latch having a predetermined angle of inclination of the same shape is loosely installed in the lock latch to perform a locking function even on a thin settled jaw. 6. The manhole multiple locking device according to claim 5, wherein an arcuate slot is formed in the key rotating plate to limit excessive rotation by the multiple keys by the guide pin to prevent breakage of the moving parts. delete