KR20110106050A - Locking device for realizing locking function by using a coil and manhole using the same - Google Patents

Abstract

The present invention relates to a locking device for implementing a locking function and a manhole using the same. The manhole includes a manhole body having a body portion and a support portion arranged in a direction crossing from the body portion; A manhole cover overlying the support of the manhole body; And at least one locking device arranged in a space in the manhole cover and having a coil part and a locking part arranged in the coil part, wherein the locking part is a groove part or the support part of the body part depending on whether power is supplied to the coil part. Entering the bottom of the to lock the manhole characterized in that.
According to another aspect of the present invention, the manhole includes: a manhole body having a body portion and a support portion arranged in a direction crossing from the body portion; A manhole cover overlying the support of the manhole body; And at least one locking device arranged in a space in the manhole cover and having a coil part and a locking part having a first polarity, wherein when the power is applied to the coil part, the coil part has a second polarity and the second polarity. If the same polarity as the first polarity, the locking portion is characterized in that it enters the lower portion of the groove portion or the support portion of the body portion.

Description

LOCKING DEVICE FOR REALIZING LOCKING FUNCTION BY USING A COIL AND MANHOLE USING THE SAME}

The present invention relates to a locking device for implementing a locking function and a manhole using the same.

The manhole is a structure that allows people to enter and exit the road surface, and generally has a structure shown in FIGS. 1 and 2 below.

1 is a perspective view showing the structure of a general manhole, Figure 2 is a cross-sectional view showing the structure of a manhole in a coupled state.

1 and 2, the manhole body 100 is embedded in the ground, and the manhole cover 102 is placed on the support 110 of the manhole body 100.

However, this structure does not implement a locking function, anyone can open the manhole arbitrarily. As a result, there could be problems with theft of underground, electrical, telecommunications, water utilities, for example cables.

In addition, when a vehicle or the like passes over the manhole, the manhole cover 102 is not fixed to the manhole body 100, so that the manhole cover 102 is bounced by an impact applied by the vehicle to cause personal injury. Could have been.

In addition, even if the manhole cover 102 does not bounce off, since the manhole cover 102 may shake violently on the manhole body 100, the noise of the manhole could be significant.

The present invention provides a locking device using the coil portion and a manhole using the same.

According to an aspect of the present invention to achieve the above object, a manhole includes a body portion, a manhole body having a support portion arranged in a direction crossing from the body portion; A manhole cover overlying the support of the manhole body; And a power supply unit inserted into two holes of the manhole cover, a coil unit formed in a direction crossing the power supply unit, and connected to both ends of the power supply unit, a lock unit arranged in the coil unit, and arranged in a space in the manhole cover. And a locking device including an elastic member for applying an elastic force to the locking part.

Here, when power is supplied from the upper power supply unit to the coil unit, the locking part is separated from the groove part of the body part or the lower part of the support part due to the attraction force generated in the coil part to release the locked state of the manhole, and the power is When not supplied to the coil part, the locking part enters the groove part of the body part or the lower part of the support part by the repulsive force of the elastic part to lock the manhole.

According to another aspect of the invention, the locking device used in the manhole comprises a power supply that is inserted into the two holes of the manhole cover; A coil unit arranged in a space in the manhole cover and connected to both ends of the power supply unit; A locking part formed between the coil part and the body part; A conductor portion wrapped by the coil portion; And a locking part formed to move between the coil part and the body part, wherein a permanent magnet is formed on a part of the locking part.

Here, when power is applied to the coil unit, the coil unit has a second polarity, and when the second polarity is the same as the first polarity, the locking unit enters a lower portion of the groove or support of the body to lock the manhole.

The coil part is formed in the locking device of the manhole according to the present invention, and as a result, power can be applied to the coil part to lock or release the locking device of the manhole.

Therefore, the theft of the manhole cover can be prevented and the manhole cover can be prevented from escaping from the manhole body due to the impact of the vehicle movement.

1 is a perspective view showing the structure of a general manhole.
2 is a cross-sectional view showing the structure of a manhole in a coupled state.
3 is a plan view illustrating a manhole according to an embodiment of the present invention.
4 is a perspective view showing the structure of a manhole according to a first embodiment of the present invention.
5 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.
6 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.
7 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.
8 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.

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

3 is a plan view illustrating a manhole according to an embodiment of the present invention.

Referring to FIG. 3, the manhole of this embodiment includes a manhole body 300, a manhole cover 302, and at least one locking device 304.

Manhole cover 302 is placed on the support of the manhole body 300 serves to cover the manhole. Here, the support portion is arranged in a vertical direction from the body portion (part formed in the vertical direction) of the manhole body 300.

The locking device 304 performs a function of locking the manhole, and for example, the locking part existing inside the manhole is inserted into or detached from the groove of the body part of the manhole body 300 in response to the operation of the coil part to lock the manhole. Or unlock it. As a result, even when a vehicle or the like passes over the manhole, the manhole cover 302 may not be bounced outward.

In addition, since the present invention operates on the principle that power must be applied from the outside, others cannot arbitrarily open the manhole locking device 304, and as a result, the theft of the cable and the like inside the manhole can be prevented.

Hereinafter, various manhole structures of the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view showing the structure of a manhole according to an embodiment of the present invention.

Referring to FIG. 4, the manhole body 300 of the present embodiment includes a body part 400, a groove part 401, and a support part 402.

Body portion 400 is a part constituting the body of the manhole, the support portion 402 is arranged in a direction intersecting with the body portion 400, preferably in a vertical direction as shown in Figure 4 and supports the manhole cover It plays a role.

The groove portion 401 is formed on the body portion 400 on the upper portion of the support portion 402, as shown in Figure 4, the support member (locking portion described later) of the locking device 304 is inserted to secure the manhole cover To play a role.

The locking device 304 of the present embodiment performs the locking function by being coupled to the manhole cover 302, and the power supply unit 404, the coil unit 406, the locking unit 408, the hole unit 410 and the specific unit As the space, the coil fixing part 412 is included.

The power supply 404 is inserted into the hole 410 of the manhole cover 302 as shown in FIG.

Two power supply units 404 are implemented in pairs, and are inserted into the hole portions 410. Of course, the inner surface of the manhole cover 302 corresponding to the holes may be made of an insulator such that the power supply unit 404 does not communicate with electricity. For example, the inner side may be plated with an insulator material.

The coil part 406 is arranged in the coil fixing part 412 of the manhole cover 302, and both ends of the coil part 406 are electrically connected to the power supply parts 404. Here, the inner surfaces of the manhole cover 302 corresponding to the coil fixing part 412 may be plated with an insulator material so as not to be electrically connected to the coil part 406.

The coil part 406 means an electric coil wound in a cylindrical shape, and may convert electrical energy into mechanical kinetic energy or use it as an electromagnet. Specifically, an electric coil wound in a cylindrical shape may be referred to as a solenoid.

The operating principle of the coil unit 406 is to use a magnetic field generated when a current flows through the coil. Specifically, when the electric coil is wound in a circle and a current flows, a magnetic field is generated inside the coil. Here, when a magnetic material (iron, etc.) approaches the inside of the coil in which the magnetic field is generated, the magnetic material moves to the inner center of the coil. That is, the electrical energy flowing through the coil can be converted into mechanical energy.

The strength [H] of the magnetic field in the vicinity of the center of the coil is determined by the radius of the coil unit 406 [r], the length [L], the number of turns per unit length [n], and the current [I]. in

Becomes

Therefore, when power is applied to the coil unit 406, an attraction force is generated in the center of the coil unit 406, and the locking unit 408 is dragged into the coil unit 406.

The coil part 406 can also be used as an electromagnet. When a current flows through the electric coil forming the coil part 406, a magnetic field is generated, and the coil part 406 has the properties of a magnet. In this state, when the iron core is inserted into the coil part 406, a stronger magnet becomes.

At this time, one side of the coil portion 406 has an N pole, the other side has a magnetic pole. This depends on the winding direction of the electromagnetic coil or the direction in which the polarity of the power supply is applied. Therefore, when the positive or negative pole is applied to one end of the coil unit 406, there is a change in the magnetism of the N pole or the S pole.

The locking part 408 is inserted into the groove part 401 of the manhole body 300 to lock the manhole.

The locking portion 408 is formed to be inserted into the groove portion 401 in the direction intersecting with the body portion 400 (preferably in a vertical direction). That is, the locking part 408 is inserted into the coil part 406 when the manhole is released from the locked state and is formed to be separated from the coil part 406 when the manhole is locked.

The locking part 408 may be made of magnetic material.

The locking portion 408 may have a circular or polygonal shape. The locking portion 408 is formed to be easy to move to repeat the locking and unlocking of the manhole.

Hereinafter, a detailed structure of the manhole will be described with reference to the accompanying drawings.

5 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.

5A and 5B, two hole portions 410 are formed in the manhole cover 302, and a power supply 404 is inserted into the two hole portions 410. One power supply unit 404 of the two power supply unit 404 is supplied with the power of the (+) pole and the other power supply unit 404 is supplied with the power of the (-) pole.

The pole of the power supplied to the power supply 404 may be changed by the user.

When the power supply unit 404 supplies power to the coil unit 406, attraction force is generated in the air core, which is the center of the coil unit 406, and the locking unit 408 is inserted into the coil unit 406. In this case, the locking part 408 is separated from the groove part 401 to release the locked state of the manhole.

As shown in FIGS. 5A and 5B, an elastic part 500 is formed inside the coil part 406.

The elastic part 500 may be formed of a spring, and when the elastic part 500 is compressed, a repulsive force that is pushed to the outside is generated, and when the elastic part 500 is stretched, an attractive force is generated to pull inward.

When no power is supplied to the power supply unit 404, the attraction force to the locking unit 408 generated by the coil unit 406 disappears, and the locking unit is driven by a force that the elastic unit 500 pushes the locking unit 408. 408 is separated from the coil portion 406. Therefore, the locking portion 408 is inserted into the groove 401 and the manhole is locked.

The repulsive force that the elastic part 500 pushes the locking part 408 maintains a force weaker than the attraction force generated in the coil part 406. Therefore, when attraction occurs in the coil part 406, the locking part 408 may be inserted into the coil part 406.

The attraction force of the coil unit 406 can be adjusted by the strength of the power to be supplied or the number of times the electric coil forming the coil unit 406 is wound.

6 is a cross-sectional view showing the structure of the locking device of the manhole according to an embodiment of the present invention.

As illustrated in FIGS. 6A and 6B, the permanent magnet 600 may be formed at the end of the locking part 408 toward the body 400.

When the permanent magnet 600 is formed, when the manhole is locked, since the locking part 408 is pulled by the permanent magnet 600 to the manhole body 300, the manhole is easily coupled to the manhole body 300. Can be locked.

In addition, after the manhole is locked, the coupling between the locking device 304 and the manhole body 300 may be strongly maintained by the magnetic force of the permanent magnet 600, thereby preventing any detachment of the manhole cover 302. In addition, it can significantly reduce the noise of the manhole.

7 is a cross-sectional view showing the structure of the locking device 304 of the manhole according to an embodiment of the present invention.

As shown in FIGS. 7A and 7B, the permanent magnet 700 may be formed on the inner surface of the groove 401.

In this case, as described above with reference to FIG. 6, the manhole may be easily locked by the coupling by the permanent magnet 700, and the coupling force between the locking device 304 and the manhole body 300 may be maintained strongly.

In addition, when the permanent magnet 700 is formed on the inner surface of the groove portion 401, the elastic portion 500 may be omitted.

Specifically, the method of releasing the locking state of the manhole by pulling the locking part 408 into the coil part 406 by the attraction force of the coil part 406 generated by applying the power to the coil part 406,

The locking portion 408 is not inserted into the groove portion 401 by the repulsive force of the elastic portion 500 when the manhole is locked, but by the attraction force of the permanent magnet 700 formed on the inner surface of the groove portion 401. ) Is inserted into the groove portion 401.

8 is a cross-sectional view showing the structure of the locking device 304 of the manhole according to an embodiment of the present invention.

Referring to FIGS. 8A and 8B, the locking device 304 of the manhole may include a power supply unit 404, a coil unit 406, a conductor unit 800, a locking unit 802, and a permanent magnet 804. ), A hole part 810 and a coil fixing part 812.

The present invention operates by using the properties of the electromagnet generated in the coil unit 406 when the power supply unit 404 applies power to the coil unit 406.

The coil part 406 is arranged in the coil fixing part 812 inside the manhole cover, and the power supply part 404 penetrates the hole part 810 and is connected to both ends of the coil part 406.

The permanent magnet 804 is formed at the end of the locking portion 802 in the direction of the coil portion 406.

The conductor part 800 is fixed inside the coil part 406 and allows the coil part 406 to have a stronger magnetic force. The conductor part 800 may be omitted.

When the power supply unit 404 applies the power to the coil unit 406, the coil unit 406 has the characteristics of an electromagnet having a magnetic pole of N pole or S pole in the end of the locking unit 802 direction.

When the magnetism of the permanent magnet 804 formed at the end of the locking part 802 is the same as the magnetism generated at the end of the locking part 802 in the coil part 406, repulsive force is generated and the locking part 802 is repulsive. It is inserted into the groove 401 by the manhole is locked.

On the contrary, when the magnetism of the permanent magnet 804 is opposite to the magnetism generated at the end of the coil part 406 in the direction of the locking part 802, the attraction force is generated and the locking part 802 is connected to the conductor part 800 by the attraction force. ) And the manhole is unlocked.

When the positive pole is applied to one of the two power supply units 404, and the negative pole is applied to the other power supply unit 404, the direction of the locking unit 802 of the coil unit 406 is oriented. When the N pole is generated at the end, when the negative pole is applied to either of the power supply units 404, the S pole is generated at the end of the coil part 406 in the direction of the locking part 802.

Therefore, the user may change the polarity of the power applied to the power supply unit 404 and determine the magnetic direction of the coil unit 406. In other words, it is possible to change the polarity of the power applied to the power supply to lock and unlock the locking device.

In the case of the locking device 304 described with reference to FIG. 8, the inner side of the permanent magnet 600 formed at the end of the body part 400 in the direction of the locking part 408 described with reference to FIG. 6 and the groove 401 described with reference to FIG. An example of the permanent magnet 700 formed may be equally applicable.

The embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Should be considered to be within the scope of the following claims.

100: manhole body 102: manhole cover
110: support
300 manhole body 302 manhole cover
304: locking device
400: body portion 401: groove portion
402: support 404: power supply
406: coil portion 408: locking portion
410: hole portion 412: coil fixing portion
500: elastic part
600: permanent magnet 700: permanent magnet
800 conductor part 802 locking part
804: permanent magnet 810: hole
812: coil fixing part

Claims (13)

In the manhole,
A manhole body having a body portion and a support portion arranged in a direction crossing from the body portion;
A manhole cover overlying the support of the manhole body; And
At least one locking device arranged in a space in the manhole cover and having a coil part and a locking part arranged in the coil part,
The manhole having a locking function, characterized in that the locking portion enters the groove portion of the body portion or the lower portion of the support portion and locks the manhole depending on whether power is supplied to the coil portion. According to claim 1, At least two holes are formed in a pair of the manhole cover, a permanent magnet is formed in a portion of the locking portion,
The locking device,
Power supplies inserted into the holes of the manhole cover; And
It is arranged in the space of the manhole cover, and further comprising an elastic member for applying an elastic force to the locking portion,
The power supply parts are electrically connected to both ends of the coil part, and when the power is applied from the power supply parts to the coil part, the locking part is separated from the groove part of the body part, and when the power supply to the coil part is stopped, the elastic member The manhole having a locking function, characterized in that the locking portion is inserted into the groove by the elastic force of the. 3. The method of claim 2, wherein at least one of the inner surfaces of the manhole cover corresponding to the holes is formed of an insulator, the locking part is a magnetic material, and a second permanent magnet is formed on the inner surface of the manhole body corresponding to the groove part. Manhole having a locking function, characterized in that formed. In the manhole,
A manhole body having a body portion and a support portion arranged in a direction crossing from the body portion;
A manhole cover overlying the support of the manhole body; And
At least one locking device arranged in a space in the manhole cover and having a coil part and a locking part having a first polarity;
When the power is applied to the coil part, the coil part has a second polarity, and when the second polarity is the same as the first polarity, the locking part has a locking function characterized in that it enters the groove part or the support part of the body part. manhole. The manhole of claim 4, wherein the locking part is separated from the lower part of the groove part or the support part of the body part when the second polarity is opposite to the first polarity, thereby releasing the locking state of the manhole. The manhole having a locking function according to claim 4, wherein a permanent magnet is formed at a portion of the locking part facing the coil part. The method of claim 4, wherein the manhole cover is formed in a pair of at least two holes, the locking device further comprises a power supply for supplying power through the holes connected to both ends of the coil portion; The manhole with the locking function characterized by. The method of claim 4, wherein the locking device further comprises a conductor portion arranged in the coil portion,
The manhole having a locking function, characterized in that at least one of the inner surface corresponding to the holes of the manhole cover is formed of an insulator. A locking device arranged in a space of a manhole cover,
A coil unit arranged in the space; And
Including locks,
Locking device used in the manhole, characterized in that the locking portion enters the lower portion of the groove portion or the support portion of the manhole body depending on whether the power supply to the coil portion. The method of claim 9, wherein the locking device,
Power supplies inserted into the holes of the manhole cover; And
It is arranged in the space of the manhole cover, and further comprising an elastic member for applying an elastic force to the locking portion,
The lock part is arranged in the coil part, the power supply parts are electrically connected to both ends of the coil part, and when the power is applied from the power supply parts to the coil part, the lock part is separated from the groove part of the body part. The locking device used in the manhole, characterized in that the locking portion is inserted into the groove portion by the elastic force of the elastic member when the power supply to the portion is stopped. The locking device of claim 10, wherein at least one of the inner surfaces of the manhole cover corresponding to the holes is formed of an insulator, and the locking unit is a magnetic material. The method of claim 9, wherein when the power is applied to the coil portion, the coil portion has a second polarity, the permanent magnet is coupled to the lock portion, the locking portion has a first polarity,
If the second polarity is the same as the first polarity, the locking portion enters the groove portion or the lower portion of the support portion. If the second polarity is opposite to the first polarity, the locking portion is the groove portion or support portion of the body portion. Locking device used in the manhole characterized in that the lock state of the manhole is released from the lower portion. 13. The locking device of claim 12, wherein the locking device further comprises a conductor portion arranged in the coil portion.

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