KR101770669B1 - Band Type Deep Well Camera Inspecting Device - Google Patents

Abstract

Provided is a band type deep well camera-inspection device, capable of being safely lifted/lowered without being locked on a protrusion part protruding on the inner surface of a deep well. According to the present invention, the device comprises: a main body including a camera reception body having a camera received therein to inspect and observe the internal condition of the deep well with a predetermined depth to be lowered and enter inside the deep well; a motor member to normally or abnormally rotate a screw shaft with a predetermined length vertically installed inside the main body; an inner moving body screw-coupled to the screw shaft to be reciprocally moved along the screw shaft in the internal space of the main body by a rotary force of the motor member; an outer moving body connecting one end with the inner moving body to be connected to the other end of a connection bar exposed to the outside through a long hole formed on the external surface of the main body; and a plurality of band units having a band member with a predetermined length connecting the top with the outer moving body and connecting the bottom with a camera holder assembled in the main body to be outwardly and curvedly unfolded to be in contact with the inner surface of the deep well while the outer moving body is lowered with respect to the camera holder.

Description

[0001] The present invention relates to a band type deep well camera inspection device,

The present invention relates to a device for observing and examining the inside of an underground water heart as a camera, and more particularly, to a device for observing an underground water heart by a camera, and more particularly, The present invention relates to a band-type groundwater-under-water camera illuminating device capable of safely descending into a ground, pulling the ground, and stably maintaining the center position of a camera descending into the heart.

In general, ground water is a part of precipitation that permeates into the crevices of the earth's surface from the surface of the earth. It is absorbed in many places between unspecified ground located at a certain depth from the ground and ground.

Since the water quality of groundwater is usually clear and clean, environmental pollution is intensified, and interest in clean drinking water is heightened. Recently, efforts to develop uncontaminated groundwater have been actively carried out.

Therefore, in order to find uncontaminated groundwater, it is essential to drill the groundwater well as a drill and to measure the water quality and water level of the groundwater.

In addition, during the drilling to develop groundwater, the soil layer and the weathered rock layer are pierced naturally, and the piercing section is formed by passing through the soft rock layer, the normal rock, and the light rock layer successively.

As a result, groundwater that is susceptible to contamination or contamination has become a major factor in groundwater contamination of rock aquifers and groundwater in naturally uncontaminated rock aquifers without any resistance or filtration.

In order to develop underground water, the state of the inner wall of the perforated hole drilled at a certain depth below the ground is checked, the installation state of the inner casing penetrated into the perforated hole is checked, and the depth of the aquifer and the depth of excavation , And an inspector, which is a logging device with a camera capable of internal observation, was entered into the heart.

(Patent Document 1) KR10-1242719 B1

(Patent Document 2) KR20-0327387 Y1

Patent Document 1 discloses a packer device installed inside the underground water depth and a pressurized fluid for expanding the expansion tube of the packer device so as to prevent inflow of the upper layer contaminated groundwater of the underground water depth or to conduct a pumping test of the underground water depth section And a pressurized fluid injection device configured to pressurize the pressurized fluid.

In Patent Document 2, the centering device is combined with the centering device so that the camera position can be shifted while keeping the center of the camera in the underground water, and the camera waterproof case and the centering device are screwed to each other, Each end is machined with a male thread on one end, a male thread on the camera watertight case is threaded and on the inner circumference is fitted a female threaded cap which can be joined to the end thread of the cylindrical rod, Discloses an irradiation device in which a rod is fixed to the outer periphery of a cylindrical ring which is made to be able to slide on the outer circumferential surface of a circular rod and a spring is provided on the outer periphery of the cylindrical rod between the cap and the cylindrical ring.

However, Patent Document 1 requires an injection device for supplying a pressurized fluid to a packer located deep inside the groundwater core along with a packer whose volume is expanded by a pressurized fluid. Therefore, the overall apparatus structure is complicated, And difficult to manage.

In addition, in Patent Document 2, in the process of photographing the inside of the heart using a camera down to the ground bottom of the groundwater, and then collecting the outside of the heart by the pull of the ground worker, the outside rod is projected on the inside wall surface from which the inner casing is removed It is difficult to collect the protruding portion protruding from the inner surface of the inner casing penetrated into the inner surface of the heartbeat.

In addition, when the rod is pulled with an excessive force to collect the camera forcibly while it is caught, the cable is cut and the expensive camera equipments can not be collected.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of inspecting an underground water heart by inspecting the inside of a camera, And to stably maintain the center position of the camera which has fallen into the heart of the heart.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to achieve the above object, a first embodiment of the present invention provides a camera comprising: a main body having a camera receiver accommodated therein by a camera so as to examine and observe an internal state of a heart at a certain depth, A motor member rotatably driving a screw shaft of a predetermined length vertically provided in the main body in a forward or reverse direction; An internal moving body screwed with the screw shaft and reciprocally moved along a screw axis in an internal space of the main body by a rotational driving force of the motor member; An external moving body connected to the other end of the connecting bar which is exposed to the outside through a slot formed on the outer surface of the main body, A band member having a length connected to an upper end of the external moving body and having a lower end connected to a camera holder assembled to the body, and having a band member curved outwardly in contact with the inner surface of the heart when the external moving body is lowered to the camera holder A plurality of band portions extending in a longitudinal direction; And a camera for irradiating the camera.

Preferably, the main body has an upper cap for covering and sealing the motor arrangement space formed by the horizontal partition wall on which the motor member is fixedly installed, and the upper cap includes a cable extending from the motor member and extending from the camera The cable may include an outflow port formed with a draw-out hole through which another cable is drawn upward

According to a second embodiment of the present invention, there is provided a stereoscopic image capturing apparatus comprising: a main body having a camera receptacle in which a camera is internally accommodated to examine and observe an inner state of a heart at a certain depth, A motor member rotatably driving a screw shaft of a predetermined length vertically provided in the main body in a forward or reverse direction; An internal moving body screwed with the screw shaft and reciprocally moved along a screw axis in an internal space of the main body by a rotational driving force of the motor member; A pegmatic external moving body reciprocating along an outer surface of the main body by a magnetic force of a magnetic body connected to the other end of a connecting bar, A band member having a predetermined length connected to an upper end of the external movable body and connected to a lower end of the camera holder, the lower end of the band member being connected to the upper end of the external moving body, A plurality of band portions curving outwardly so as to extend in an outward direction; And a camera for irradiating the camera.

Preferably, the main body may include an inner guide groove formed on the inner surface of the main body so that the magnetic body is inserted and recessed at a predetermined depth in the longitudinal direction.

Preferably, the main body corresponding to the magnetic body includes a cover body having a protrusion formed by inserting and disposing the external movable body on the external surface, and the external movable body is formed with a predetermined length And can be connected to the upper end of the band member through a long hole.

More preferably, the elongated hole may be provided in the cover body so as to have the same or a relatively short length as the length of the inner guide groove formed on the inner surface of the main body so that the magnetic body can be guided and moved.

Preferably, the external movable member may include at least one contact portion protruding from an inner surface of the main body so as to be in point contact or line contact with an outer surface of the main body.

Preferably, the band member has a serrated portion protruding outwardly from an outer surface corresponding to an inner surface of the heart, or may be provided with an embossing portion.

The present invention as described above has the following effects.

(1) The distance between the camera holder, which is fixed to the lower end of the main body by the driving force of the motor member provided in the main body, and the external moving body or the external pneumatic body provided at the upper end of the main body, So that the camera can be positively positioned at the center of the heart of the body along with the main body, the camera shake can be prevented, and high-quality image information can be obtained, It is possible to acquire images and increase the irradiation accuracy.

(2) The body and the camera can be safely lowered to the bottom of the heart without interfering with the protruding part inside the heart, and the body and the camera can be safely pulled up to the ground after internal observation and irradiation. It is possible to prevent the loss of the camera, which is a high-priced equipment due to disconnection.

(3) Since the outer diameter of the band member, which receives the driving force of the motor member in accordance with the change of the inner diameter of the heart, can be adjusted, the camera can be stably lowered into the heart, So that it can be raised and recovered safely.

FIG. 1 is an exploded perspective view showing a band-type groundwater-under-water camera illuminating apparatus according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view illustrating a band-type groundwater-under-water camera-irradiating apparatus according to a first embodiment of the present invention,
(a) shows a state before the band portion is curved and deformed,
(b) shows a state in which the band portion is curved and deformed.
FIG. 3 is a cross-sectional view illustrating a band-type groundwater-under-water camera illuminating apparatus according to a first embodiment of the present invention.
4 is an exploded perspective view showing a band-type groundwater-under-water camera illuminating apparatus according to a second embodiment of the present invention.
FIG. 5 is an exploded perspective view showing a band-type groundwater-under-water camera illuminating apparatus according to a second embodiment of the present invention,
(a) shows a state before the band portion is curved and deformed,
(b) shows a state in which the band portion is curved and deformed.
FIG. 6 is a cross-sectional view illustrating a band-type groundwater-under-water camera illuminating apparatus according to a second embodiment of the present invention.
7A and 7B are block diagrams showing an embodiment of a band member applied to a band-type groundwater-under-water camera illuminating apparatus according to the first and second embodiments of the present invention.
FIG. 8 is a view illustrating an operation state of a band-type groundwater-under-water camera illuminating device according to an embodiment of the present invention at the time of descending and rising.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

1 to 3, the apparatus 100 for irradiating a band-type groundwater-under-watercondensed camera according to the first embodiment of the present invention includes a main body 110, a motor member 120, an inner moving body 130, The camera including the camera 140 and the band unit 150 is fixed in the center of the cardiac pace in the lower part of the heart, And can be carried out without interfering with the protruding portion protruding from the inner surface of the heart.

The main body 110 is electrically connected to a control unit on the ground via a cable C, and is provided with a camera for photographing the inside of the heart to examine and observe the internal state of the heart, and a hollow pipe member Lt; / RTI >

The camera holder 115 is installed at a lower end of the main body 110 so that the camera holder 115 can be interchangeably assembled to the camera holder 115. The camera holder 115 can be moved from the groundwater filled in the heart to a camera It is preferable that it is made of a waterproof member so as to protect it.

At this time, the main body 110 can easily descend into the inside of the heart due to its own weight in addition to the camera receiver, It is preferable that it is made of a metal material having a weight.

A connection bar 135 is disposed on the outer surface of the main body 110 to connect the inner moving body 130 disposed inside the main body and the outer moving body 140 disposed outside the main body 110, A long hole 112 having a predetermined length in the longitudinal direction of the main body is formed.

At this time, it is preferable that the length of the long hole 112 is 1/2 of the total length of the main body.

And an upper cap 111 for covering and sealing the motor arrangement space M in which the motor member is disposed, at an upper end of the main body 110. A cable C And an outlet 113 forming a draw-out hole through which the other cable C extending from the camera is drawn upward.

 The upper cap 111 is formed on an inner circumferential surface of the main body so as to be threadedly coupled to the main body by screwing a male screw portion formed on the outer circumferential surface of the upper end of the main body.

In addition, the cable C, which is drawn upward through the outlet 113 of the upper cap 111 and extends to the ground, has a function of transmitting power to the camera and transmitting the photographed image data to the controller, And performs a pull wire function to pull the camera including the body up to the ground.

The motor member 120 is disposed in the inner space of the main body 110 so as to rotate the screw shaft 125 having a predetermined length vertically provided in the main body in a forward or reverse direction.

The motor member 120 is disposed in a motor arrangement space M formed between a horizontal partition wall 114 formed at an upper end of the main body and an upper cap 111 assembled at an upper end of the main body, It is preferable that the sealing treatment is performed so that water does not intrude from the outside.

The driving gear 121 provided on the driving shaft of the motor member 120 is provided on the upper end of the screw shaft 125 exposed to the motor arrangement space M through the shaft hole 114a of the horizontal partition wall 114 And the lower end of the screw shaft 125 is rotatably supported on the bottom surface of the main body.

At this time, although the driving gear of the motor member and the driven gear of the screw shaft are shown as bevel gears respectively, they may be in the form of other gears capable of transmitting rotational power, or the driving shaft of the motor member may be directly connected to the screw shaft Can be driven.

In addition, the main body 110 may be lowered to the target depth up to the bottom surface of the heart without being affected by the buoyancy of the ground water filled in the heart during the downward entry into the groundwater depth by the self weight. And a plurality of weights W inserted into the screw shaft and stacked on the lower portion of the main body.

The internal moving body 130 has a female screw hole that is threadedly engaged with the screw shaft 125 so as to penetrate through the center of the body so that the internal moving body 130 moves up and down along the screw axis in the internal space of the main body 110 by the rotational driving force of the motor member 120 It is reciprocated.

The outer moving body 140 is assembled with the other end of a connecting bar 135 which is connected to an inner moving body 130 disposed at the inner side of the main body 110 and the connecting bar 135 is connected to the outer surface of the main body 110 And is exposed to the outside through the elongated hole 112 formed in the longitudinal direction and connected to the external moving body 140.

Accordingly, since the inner moving body 130 screwed with the screw shaft when the screw shaft is rotated in the forward or reverse direction by the rotation of the motor member 120 is connected to the connecting bar that is constrained to the long hole of the main body, And is moved upward or downward in accordance with the rotational driving amount of the motor member along the vertical screw shaft in the internal space of the motor.

At the same time, the external moving body 140 connected to the other end of the connecting bar 135 is moved upward or downward along the outer surface of the main body in the same direction as the internal moving body.

The band unit 150 has a band member 151 connected to an upper end of the external moving body 140 and having a lower end connected to a camera holder 116 assembled to the body, When the external moving body is lowered with respect to the camera holder 116 fixed by the operation of the band 120, the band member is deformed outwardly in contact with the inner surface of the heart, The member is restored to come close to the outer surface of the main body.

The band member 151 has a first connection port 152 rotatably connected to a first connection port 142 formed on the outer surface of the outer moving body 140, And a second connection port (153) rotatably connected to the second connection port (116a) formed on the outer surface of the heart. When the distance between the external moving body and the camera holder becomes narrow, the outer surface contacts the inner surface of the heart When the distance between the external moving body and the camera holder is restored to its original state, the camera body is restored to its original state so as to be adjacent to the main body.

The band member 151 is preferably made of an elastic plate made of a resin material or a metal material having a predetermined width so as to be deformed into an arcuate shape and then linearly restored.

Accordingly, when the external moving body connected to the internal moving body via the connecting bar is lowered along the slot when the screw shaft is rotated by the rotation of the motor member 120, the distance between the external moving body and the camera holder becomes narrow, The band member 151 provided between the moving body and the camera holder is deformed to curl outward and the outer surface of the band member deformed in a curved shape is brought into contact with the inner surface of the heart.

Therefore, the camera provided at the lower end of the main body together with the main body is positioned at the inner center of the heart, and at the same time, it is prevented from shaking due to external force during the internal observation and irradiation work using the camera, .

As shown in FIGS. 4 to 6, the safety detachable groundwater-felt camera irradiating apparatus 100a according to the second embodiment of the present invention includes a main body 110, a motor member 120, (130), a parietal external moving body (140a), and a band unit (150), and the same components are denoted by the same reference numerals, and a detailed description thereof will be omitted below.

 The motor member 120 is fixedly installed in an upper end inner space of the main body 110 and is directly connected to an upper end of a screw shaft 125 vertically installed in an inner space of the main body 110.

Accordingly, when the motor member is driven, the screw shaft 125 is driven to rotate forward or backward in the body so as to reciprocate the inner moving body vertically in the same manner as in the first embodiment.

The inner moving body 130 is connected to a magnetic body 130a having a magnetic force of a predetermined intensity through a connecting bar 135. The outer magnetic moving body 140a includes a magnetic body 130a disposed inside the main body 110, And is reciprocally moved upward and downward together with the inner moving body and the magnetic body in contact with the outer surface of the main body by the magnetic force of the magnetic body 130a.

The main body 110 has an inner guide groove 119 formed at a predetermined depth in the longitudinal direction of the main body 110 so that the magnetic body 130a is inserted into the inner surface of the main body 110, It is possible to smoothly perform up-and-down reciprocating movement.

It is preferable that the inner guide groove 119 is approximately 1/2 of the entire length of the main body.

Here, the magnetic body 130a is made of a permanent magnet having a magnetic force of a certain intensity, and the external magnetic moving body 140a is made of another magnetic body facing the magnetic body with different polarities to generate attractive force, And a metal body for receiving the metal.

A protruding portion 146 is formed on the outer surface of the main body 110 corresponding to the magnetic body so that a peculiar outer moving body 140a contacting the outer surface of the main body is inserted and guided by the magnetic force of the magnetic body And a cover body 145. The protrusion 146 has a long opening 146a formed therein and the external moving body 140a is connected to the third connector 141 through the long hole 146a. And the third connection port 141 is rotatably connected to the first connection port 152 provided at the upper end of the band member 151.

The lid member 145 is a lid member that is detachably assembled to the outer surface of the body corresponding to the magnetic body by a plurality of fastening members.

The inner guide groove 119 formed in the inner surface of the main body 110 so that the magnetic body 130a can be guided moves to the outside of the cover 145 so as to receive the outer magnetic member 140a. The length of the protrusion 146 may be equal to or longer than the length of the protrusion 146a of the protrusion 146 protruding outward from the surface.

When the magnetic guide member 130a is relatively longer than the slot in which the magnetic external moving member is guided and moved, the magnetic member is lowered below the slot and stopped at the lower end of the slot, When the magnetic body moves away from the outer moving body and the influence of the magnetic force is lost, the outer moving body of the pellet is raised and returned along the slot in the raised portion by the elastic restoring force of the curvedly deformed band member, So that it can be switched quickly and easily.

In addition, the external magnetic moving body 140a may be provided on the inner surface of the main body so as to reduce frictional resistance between the magnetic body of the magnetic body and the main body, It is preferable to project at least one contact portion 143 which is in point contact or line contact with the outer surface.

Accordingly, when the screw shaft is rotated in the forward or reverse direction by the rotation of the motor member 120, the inner moving body 130 screwed with the screw shaft is connected to the magnetic body 130a disposed in the inner guide groove of the main body And is moved upward or downward in accordance with the amount of rotation of the motor member along the vertical screw shaft in the inner space of the main body.

At the same time, a pervious external moving body 140a is disposed on the ridge portion of the lid body 145 provided on the outer surface of the main body corresponding to the magnetic body 130a, and the pervious external moving body 140a has a magnetic force And is raised or lowered in the same direction as the inner moving body together with the magnetic body.

The band unit 150 has a plurality of band members 151 connected to an upper end of the external moving body 140a and having a predetermined length connected to a camera holder 116 assembled to the body, When the external movable member 140a is lowered with respect to the camera holder by the operation of the motor member 120, the band member is deformed outwardly in contact with the inner surface of the heart, The band member is restored to come close to the cover body.

The band member 151 is provided at its upper end with a first connection port 152 rotatably connected to a third connection port 141 connected to the outer surface of the external movable member 140a through the slot, And a second connection port 153 rotatably connected to a second connection port 116a formed on the outer surface of the camera holder 116 at a lower end of the camera holder 116. The gap between the external portable moving object and the camera holder The outer surface of the heart is curved outwardly in contact with the inner surface of the heart, whereas when the distance between the outer mobile body and the camera holder is restored to the original state, the heart is restored to the original state.

Accordingly, when the screw shaft is rotated by the rotation of the motor member, the external moving body, which is in contact with the outer surface of the main body, is moved along the slot formed in the protrusion of the main body by the magnetic force of the magnetic body connected to the inner moving body via the connecting bar. The band member 151 provided between the external movable body and the camera holder is deformed to curl outwardly and the band member 151 is curved and deformed, The external surface is brought into contact with the inner surface of the heart, and a fixing force is generated.

Therefore, the camera provided at the lower end of the body together with the main body is positioned at the inner center of the heart as in the first embodiment and at the same time, it prevents blur due to external force during the internal observation and irradiation work using the camera, Can be obtained.

7A and 7B, the band member 151 of the first and second embodiments includes a serrated portion 155a protruding outward from an outer surface corresponding to the inner surface of the heart. Or the embossed portion 155b, it is possible to increase the frictional force between the band member 151 curved outwardly due to the lowering of the external moving body or the external movable body and the inner surface of the heart, The fixation force for fixing the heart to the center of the heart inside can be further increased.

8A to 8D, the operation of observing and illuminating the inside of the heart by using the band-type groundwater-under-vention camera illuminating device having the above-described configuration is performed by moving the main body 110 and the camera at a predetermined depth Since the band members 151 of the band portion 150 are in a waiting state in which they are spread out so as to be close to the main body or the lid body, when the band member 150 is gradually lowered into the perforated heart H, It is possible to stably enter the bottom surface of the heart of the user without falling off the user.

In this state, when the screw shaft 125 is rotated in the forward direction by the driving force of the motor member provided in the main body 110, the inner moving body 130 screwed to the screw shaft, The distance between the external moving body and the camera holder or the distance between the external moving body and the camera holder becomes narrow and the band member 151 of the band portion 150 Is elastically deformed so as to curve outward.

Since the outer surface of the band member curved outwardly is continuously contacted with the inner surface of the heart, a fixing force is generated. Therefore, the body is positively positioned at the center of the heart with the camera, and at the same time, It is possible to acquire image information of good image quality which can be read easily.

Finally, in order to collect the camera with the main body together with the main body by the pulling operation of the winch for pulling the cable extending from the main body to the ground when the observation and irradiation work on the inside of the heart are finished using the camera, The inner moving body and the outer moving body or the outer peculiar moving body related thereto are raised and returned by the reverse rotation driving of the motor member.

As a result, when the gap between the external moving body and the camera holder or the distance between the external moving body and the camera holder is unfolded, the band member curved outwardly deformed is returned to a straight line.

In this state, the main body can be lifted up through the cable to raise the camera together with the main body together safely to the ground.

On the other hand, as the depth of deepening deepened from the ground surface deepens (for example, about 200m) from the ground surface in the development of the underground water, the end of the rock excavation contact which is a bit of the setting equipment is worn down, This can be confirmed by the camera which is inserted into the excavated heart.

Particularly, when a 100 m long excavation is performed with a bit having an outer diameter of 200 mm, and a remaining section is excavated up to 200 m with a bit having an outer diameter of 150 mm, a protruding jaw may be generated in a 100 m section.

In this case, even if the inner diameter of the heart is not constant up to the bottom of the heart, the body may be fixed by the band member curved outward at the bottom of the heart under the floor, The size of the maximum outer diameter of the band portion can be adjusted by adjusting the degree of curvature deformation of the band member according to the change of the inner diameter of the heart and the inner diameter of the final lower depth to fix the body with the camera, Image information can be obtained.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110:
111: upper cap
112: long hole
113: outlet
114: Horizontal bulkhead
116: Camera holder
120: Motor member
121: drive gear
122: driven gear
125: Screw shaft
130: internal moving body
130a:
135: Connection bar
140: External mobile body
140a:
150: band portion
151: band member
152: first connecting port
153: second connecting end

Claims (2)

A body having a camera receptacle in which a camera is housed to examine and observe an inner state of a heart of a predetermined depth and descend into the heart of the heart;
A motor member rotatably driving a screw shaft of a predetermined length vertically provided in the main body in a forward or reverse direction;
An internal moving body screwed with the screw shaft and reciprocally moved along a screw axis in an internal space of the main body by a rotational driving force of the motor member;
An external moving body connected to the other end of the connecting bar which is exposed to the outside through a slot formed on the outer surface of the main body,
A band member having a length connected to an upper end of the external moving body and having a lower end connected to a camera holder assembled to the body, and having a band member curved outwardly in contact with the inner surface of the heart when the external moving body is lowered to the camera holder A plurality of band portions extending in a longitudinal direction; Lt; / RTI >
Wherein the band member has a serrated portion protruding outwardly on an outer surface corresponding to an inner surface of the heart, or has an embossed portion,
The main body includes an upper cap for covering and sealing a motor arrangement space formed by a horizontal partition wall on which the motor member is fixedly installed. An upper end of the screw shaft exposed to the motor arrangement space through a shaft hole formed in the horizontal partition wall And the upper cap is provided with a cable extending from the motor member and another cable extending from the camera to the upper end of the motor, wherein the driven gear is meshed with a driving gear provided on a driving shaft of the motor member, and it includes a
The body includes a plurality of weights which are inserted into the screw shaft and are stacked on the lower portion of the main body so as to allow the body to descend to a target depth down to the bottom surface of the heart without being influenced by buoyancy of the ground water filled in the heart, Wherein the band-shaped ground-water-felt camera irradiating device comprises: delete

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