KR200220627Y1 - Manhole Cover Lock - Google Patents

Abstract

The present invention installs a separate locking device on the inner cover of the manhole to allow only the relevant personnel to enter and exit the manhole during maintenance work, and to prevent outsiders from entering the manhole. It is designed to effectively protect and manage cables and equipment installed inside the manhole.

The inner lid of the manhole (1), which is placed on the inner settling (5) of the support stand (3) to which the main lid (2) is coupled, and the fixing support (9) of one side of the bottom is fixed to the bottom of the settler (5) ( 4), the key insertion hole (10) of arbitrary shape coincides with the key guide bundle (11), the key insertion hole (10) exposed to the upper surface of the inner lid (4), and the key (7) inclined upward upward. The key guide hole 14 through which the key 7 inserted into the key guide hole 10 penetrates is formed to be coupled to the inner case 13 and the inner case 13 which are coupled to the lower side of the key guide bundle 11. And a through hole 24 through which the key 7 passing through the key guide hole 14 is formed, the inner case 13 is slidably coupled between the inner case 13 and the outer case 14. ), The slide rod 22 connected to the locker 18 connected to the tension spring 15, the locker 18 rear connecting rod 21, and the slide rod 22 forcibly retracted by the key 7, and the forward and backward movement of the locker 18. Locking plate 20 which is latched and detached from the settled jaw 5 of the settle 3, the inner lid 4 is coupled to the hinge pin 28 on the upper surface of the key guide bundle 11 of the key insertion hole (10) It is made of an opening and closing plate 27 to open and close.

Description

Manhole Cover Lock

The present invention relates to a manhole cover, and more particularly to a locking device that can not open the manhole cover arbitrarily.

In general, the manhole is connected to a buried pipe for installing electricity, communication cable, etc., and is mainly used for repair and installation thereof.

These manholes are relatively heavy, but the lid on the top of the ground that passes into the interior is not much difficult to enter into the manhole by opening the manhole cover because there is no separate locking device. As the cable is often cut or damaged in various equipments installed therein, a means for solving the problem is urgently required.

Therefore, in the present invention, a separate locking device is installed on the inner cover of the manhole, so that only those who need it for repair work can enter and exit the manhole, and outsiders can open the lid at random so that they cannot enter the manhole. This is to prevent various safety accidents that may be a concern and to effectively protect and manage the cables and equipment installed inside the manhole.

1 is a perspective view showing an installation state showing an embodiment of the present invention

2 is an exploded perspective view of the present invention

3 is a cross-sectional view of the installation state of the present invention

4 is a cross-sectional view of the locked state of the present invention

5 is a cross-sectional view of the operation (release) state of the present invention

☞ Explanation of symbols used in the main part of the drawing ☜

1; manhole 2; main cover

3; lining 4; inner lid

5; lining 6; lock

7; Key 8; Handle

9; support base 10; key insertion hole

11; key guide bundle 12;

13; inner case 14; key guide

15; tension spring 16; locking jaw

17; guide ball 18; Locker

19; hook rod 20; locking plate

21; connecting rod 22; slide rod

23; outer case 24; through hole

25; assembly 26; assembly means

27; opening and closing board 28; hinge pin

1 is a perspective view illustrating an installation of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the present invention, and FIG. 3 is a cross-sectional view illustrating an installation state of the present invention, respectively.

In the conventional configuration in which the mortar 3 is buried on the ground leading into the manhole 1, the main lid 2 is openably coupled to the arthropod 3, and the inner lid 4 is coupled to the inner jaw 5 of the mortar 3.

The present invention is characterized in that the locking device 6 is installed on the inner lid 4 so that the inner lid 4 can be locked and released as a separate key 7 so that the entry and exit can be controlled.

Hereinafter, the configuration of the lock device 6 of the present invention will be described in detail.

The inner lid 4 coupled to the inner jaw 5 of the inside of the arthropod 3 has a handle 8 formed at an upper portion thereof, and a fixed base jaw 9 is formed at one side of the bottom surface to be engaged with the arthroscopic jaw 5. to be.

The lock device 6 of the present invention is installed on the bottom of the opposite side of the fixing base 9 of the inner lid 4.

The key guide bundle 11 is formed through the key insertion hole 10 is fitted into the coupling hole 12 side of the inner lid 4, the key guide bundle 11 is coupled to the inner case 13.

The opening and closing plate 27 is coupled to the hinge pin 28 so as to open and close the key insertion hole 10 of the key guide bundle 11 on one side of the coupling hole 12 of the inner lid 4 to which the key guide bundle 11 is fitted. To prevent closure or tampering.

The inner case 13 has a key guide hole 14 is formed so that the key 7 inserted into the key insertion hole 10 of the key guide bundle 11 can be penetrated, and at one side, a latching jaw 16 is formed to be connected to one end of the tension spring 15. .

Further, the hook rod 19 is guided from the lower locker 18 to the inner case 13 so that the other end of the tension spring 15 having one end fixed to the locking jaw 16 can be connected, and the hook rod 19 is guided forward and backward as the locker 18 moves forward and backward. The guide hole 17 which can be formed is formed.

Then, the locker 18 is coupled to the bottom of the inner case 13 so that the hook rod 19 of the locker 18 is inserted into and coupled to the guide hole 17 of the inner case 13. The locker 18 has a locking plate 20 formed to a predetermined length on the side. At the end of the rear connecting rod 21, the slide rod 22 is coupled.

On the other hand, the outer case 23 is coupled to the lower side of the inner case 13 coupled to the bottom of the locker 18, the outer case 23 has a structure in which the side is open so that the locking plate 20 of the locker 18 does not interfere with the advance operation. The through hole 24 is formed so that the key insertion hole 10 and the key 7 inserted from the key guide hole 14 of the key guide bundle 11 can also pass through.

The key guide bundle 11, the inner case 13 and the outer case 23 are mutually assembled by means of assembling means 26, such as a piece, through each assembling hole 25, and the outer case 23 is an inner lid 4 with various fixing means such as pieces, rivets or welding. It will be fixed on the bottom.

Key 7 is formed in a variety of shapes, such as zigzag, not straight, as shown in order to prevent imitation with independence according to the shape, the key insertion hole 10 of the key guide bundle 11 that the key 7 is coupled to the key 7 The key 7 is configured to be inclined upwardly to the rear side, and is connected to the slide rod 22 of the locker 18 so as to retract the rocker 18 while descending from the top to the bottom to lock the locker of the inner lid 4 in a locked state. To release 18, look at in more detail on the configuration and operation through the use of the present invention as follows.

The inner lid 4 is seated on the lower jaw 5 of the base 3, the main lid 2 is coupled, such a state of engagement of the inner lid 4 is fixed on one side of the fixing stand 9 is fixed to the mounting jaw 5 and the locking stand installed on the other side The locker 18 of the apparatus 6 is in a locked state in which the locker 18 of the apparatus 6 is locked to the lower side of the settling jaw 5 of the settable 3 as shown in FIG.

When the inner lid 4 is to be opened while the inner lid 4 is closed in this way, first, by turning the opening and closing plate 26 of the upper surface of the inner lid 4 to one side to expose the key insertion hole 10 of the key guide monkey 11, and the key insertion hole 10 and A matching key 7 is inserted from the key insertion hole 10 and pushed downward.

When the key 7 inserted into the key insertion hole 10 of the key guide bundle 11 is lowered, the locker 18 end coupled between the inner case 13 and the outer case 23 passes through the guide hole 17 of the inner case 13 while the side of the key 7 passes through the guide hole 17 of the inner case 13. The slide bar 22 is pushed backward by force. If the key 7 is inserted into the through hole 24 of the lower case 23, the slide bar 22 connected to the key 7 which is inclined to the rear side moves the key 7 downward. Since it comes down to the rear end of the insertion hole 10, the rocker 18 is naturally retracted. Therefore, the tension spring 15 connected between the hook rod 19 of the rocker 18 and the catching jaw 16 of the inner case 13 is in a forced tension state.

Since the rocker 18 is retracted by the movement width of the slide rod 22, that is, the width of the key 7, the guide hole 17 of the hook rod 19, which is connected to the tension spring 15 and moves forward and backward according to the movement of the rocker 18, also secures a sufficient movement width. It is natural.

As described above, the key 7 is completely pushed into the key insertion hole 10 of the key guide bundle 11, the key guide hole 14 of the inner case 13 and the through hole 24 of the outer case 23 to tension the tension spring 15, and then retreat the locker 18. The locking plate 14 on the side of the locker 18, which was held on the bottom 5 of the settled jaw 5, is pushed into the outer case 23, thereby releasing the locked state.

Therefore, the user inserts the key 7 into the key insertion hole 10 to release the inner lid 4 by using the handle 8 in a state of releasing the locking state of the inner lid 4.

Of course, at this time, since one side of the fixing stand 9 is in the latching state on the inner jaw 5, the inner lid 4 is opened by lifting from the opposite side of the fixing stand 9.

When the key 7 is inserted through the key insertion hole 10 of the key guide bundle 11 and the key guide hole 14 of the inner case 13 and the through hole 24 of the outer case 23 to release the locker 18, the key 7 is trapped in the dirt. And pushed down together to be discharged to the through-hole 24 of the outer case 23, the key guide ball 10 of the key guide bundle 11 to which the key 7 is first coupled to form a wider toward the lower side to easily discharge various kinds of dirt, such as sand It is desirable to be able to.

In addition, when the inner lid 4 is coupled to the inner jaw 5 of the base 3 after the operation again and the key 7 is separated, the inner lid 4 is automatically returned to its original locked state.

That is, when the key 7 is separated from the key insertion hole 10, the restoring force of the tension spring 15

The locker 18 protrudes forward so that the locking plate 20 of the locker 18 is hung on the bottom 5 of the settled base 3 so that the inner lid 4 is automatically switched to the locked state at the same time as the key 7 is removed.

On the other hand, the locking device 6 of the present invention is provided with a safety device so that even if the key 7 is duplicated according to the shape of the key insertion hole 10, the inner lid 4 can not be easily opened using the duplicated key 7.

That is, the length of the key insertion hole 10 exposed to the outside is formed to be somewhat longer than the width of the key 7, and the width of the key guide hole 14 formed in the inner case 13 not visible from the outside consists of a width that matches the width of the key 7 Although the key 7 is copied in accordance with the key insertion hole 10 which is checked from the outside, if the width of the key 7 does not match the width of the key guide hole 14 of the inner case 13, the key 7 passing through the key insertion hole 10 is The use of duplicate key 7 is prevented by being caught by key guide hole 14 and no longer able to pass it.

As described above, the present invention is installed in the manhole 1 by installing a locking device 6 having a relatively simple configuration, a simple use method, and excellent safety in the inner lid 4 of the manhole 1, so that outsiders intruded into the manhole 1 and installed in the manhole 1, By preventing the possibility of damaging or malfunctioning cables and various equipments such as communication, it is possible to pursue not only the efficiency of the maintenance and maintenance work for them but also the economic benefits. By installing the locking device 6, the unexpected effects and benefits of installing the manhole 1 can be achieved.

Claims (1)

In the inner lid 4 of the manhole 1, the main lid 2 is seated on the inner support jaw 5 to which the main lid 2 is coupled, and the fixing base 9 on one side of the bottom is fixed to the bottom of the mounting jaw 5, A key guide bundle 11 coupled to expose the upper surface of the inner lid 4, an arbitrary shape of the key insertion hole 10, a key 7 coinciding with the key insertion hole 10, and a key 7 inserted into the key guide hole 10 are penetrated. Key guide hole 14 is formed to the inner case 13 is coupled to the key guide bundle 11 and the outer case 23 is coupled to the lower side of the inner case 13 and the through hole 24 through which the key 7 passed through the key guide hole 14 is formed. A slide rod 22 forcibly retracted by a locker 18 which is slide-coupled between the inner case 13 and the outer case 14 and connected to the inner case 13 and the tension spring 15, and the key 7, which is connected to the rear connecting rod 21 of the locker 18 and moves downwards. The locking plate 20 is locked and detached from the settling jaw 5 of the mounting stand 3 by moving forward and backward of the locker 18, and the opening and closing board which opens and closes the key insertion hole 10 of the key guide bundle 11 by being combined with a hinge pin 28 on the upper surface of the inner lid 4. 27 Lock the manhole cover, characterized in that configured.