JP2001116852A - Underground survey instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve an issue about environment-proofness such as generation of the display screen difficult to be observed because of deposit of rain drops on a display screen, generation of reflected light caused by sun shine, while keeping simple constitution and inexpensiveness based thereon. SOLUTION: This survey instrument is provided with a freely movable carriage A, a transceiving part stored in the carriage A, a signal processing part connected to the transceiving part to process a data of a reflected wave received by the transceiving part to prepare an image data and to store the data before or after the processing, and an image display part C for displaying the image data prepared in the signal processing part. The signal processing part is stored inside a casing B attached onto the carriage A to be detachable using an attaching mechanism E and to be tiltable using an angle adjusting mechanism G, F, H, etc., and the image display part C is attached to a front end part of the casing B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground exploration apparatus, and more particularly, to an environment resistant apparatus for preventing raindrops from adhering to a display screen and reflecting sunshine while maintaining a low cost based on a simple structure. And an underground exploration device with improved characteristics.

[0002]

2. Description of the Related Art Conventionally, an underground exploration device that radiates radio waves into the ground and receives and processes a reflected wave generated by an object under the ground to search for a buried object under the ground has been used. This kind of underground exploration device includes a cart with wheels that can be moved back and forth by a push rod, a transmitting / receiving unit housed inside the cart, a signal processing unit and a display unit mounted on the cart. Have.

[0003] Japanese Patent Application Laid-Open No. 11-27 relating to the prior application of the present applicant.
No. 1464 discloses an underground exploration device which does not require a separate data recording device by detachably attaching a signal processing unit having a function of storing data before and after processing to a carriage. . That is, as shown in FIG. 5, a transmission / reception unit including an antenna is accommodated in a truck a having wheels attached thereto, and a signal processing unit is provided in a housing b detachably attached to the truck a via a fastener d. Is accommodated. A display device c including a liquid crystal display panel is mounted on the housing b so as to be able to move up and down. Further, a display device f and a keyboard h on the hand side are attached to a central portion of a grip bar attached substantially horizontally to the upper end of the push bar g.

[0004]

In the underground exploration apparatus according to the prior application, a display unit is mounted in an exposed state on a housing which houses a signal processing unit and is detachably mounted on a cart. Therefore, during rainfall, raindrops adhere to the display unit, making it difficult to see the screen. In addition, when the sun is shining, the display screen becomes difficult to see due to the reflection of sunlight. In this underground exploration device, it is extremely important to always keep the display screen at the highest quality, as can be seen from the fact that the analysis of the display screen requires a great deal of skill. Also, the display device f at hand
And the keyboard h are attached to the central portion of the grip bar, so that there is a problem that the display h is obstructed when viewing the display device attached to the cart.

[0005] In order to improve the environmental resistance of the display screen against rainfall and sunshine, it is conceivable to add a dedicated housing for accommodating the display unit and protecting it from rainfall and sunshine. However, the display unit c is tilted from the housing b that houses the signal processing unit in order to turn the display screen toward the face of the worker located diagonally above.
Need. For this reason, if an attempt is made to add a housing dedicated to the display unit, the configuration is large and large due to the tilt mechanism.
It can be complicated.

Accordingly, it is an object of the present invention to provide an underground exploration apparatus which has improved environmental resistance to a display section such as rainfall and sunshine while maintaining low cost based on a simple configuration. is there. Another object of the present invention is to provide an underground exploration device having a structure that makes it easier to see a display device attached to a trolley even when a display device at hand is present.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, an underground exploration apparatus according to the present invention comprises a trolley having movable wheels, a transmitting / receiving unit housed inside the trolley, and a transmitting / receiving unit. A signal processing unit that is connected to the transmitting and receiving unit and processes the reflected wave data obtained by the transmitting and receiving unit to generate image data and stores data before or after processing; and displays the image data generated by the signal processing unit. And an image display unit. The signal processing unit is housed in a housing that is detachably mounted on the carriage using an attachment mechanism and is tiltably mounted using a tilt angle adjustment mechanism, and the image display unit is mounted in the housing. Attached to the front end of the camera effectively prevents the display screen from becoming difficult to see due to raindrops adhering to the display screen or the generation of reflected light during sunshine, while maintaining low cost based on the simple structure. are doing.

[0008]

According to a preferred embodiment of the present invention, the underground exploration device includes a hood which is pulled out of the mounting mechanism when used, and which is folded inside the mounting mechanism when not in use. It is further provided at the front end of the housing.

According to another preferred embodiment of the present invention,
The second display device on the hand side and the operation unit such as a keyboard are attached to the end of the grip bar so as to make the display device on the cart more visible.

[0010]

1 to 3 are views showing the configuration of an underground exploration apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view of a use state viewed from an obliquely upper direction of 45 °, and FIG. 2 is a use state. Side view of FIG. 3
FIG. 4 is a side view of a non-use state (transported or stored state). This underground exploration device has three wheels mounted and a push rod P
A bogie A which can be moved back and forth by pressing a grip bar Q horizontally attached to the upper end of the bogie A.
A transmission / reception unit including an antenna for transmitting / receiving radio waves is accommodated in the ground.

A receiving frame D is removably mounted on the carriage A with a fastener E interposed therebetween. This receiving frame D
Has a housing B for housing the signal processing unit and the display unit C.
Is attached. The housing B includes a guide groove F, a knob G,
It is attached to the receiving frame D so as to be free to tilt, with a tilt angle adjusting mechanism having a shaft H and the like interposed therebetween. The display unit C is disposed at a front end portion of the housing B, and is substantially four
It is taken into consideration that the display surface constituted by the liquid crystal display panel is turned to the face of the worker pushing the carriage A when the user is lifted at the elevation angle of 5 °.

A hood K for shielding the display surface of the display unit C from rain and sunlight is foldably mounted on the front side surface of the housing B. The hood K blocks raindrops that adhere to the display screen from above, from the front, and from the side, and sunlight that enters and generates reflected light. Since the brightness of a display screen of a liquid crystal display panel is smaller than that of a CRT or the like, it is extremely important to prevent water droplets from adhering to the display screen or to prevent incident sunlight from generating reflected light.

A liquid crystal display device on which a liquid crystal display panel L is formed is attached to the left end of the grip bar Q with an angle adjusting mechanism R interposed therebetween, and a keyboard M is formed on the surface of the liquid crystal display device. This liquid crystal display device is provided with a cover N for protecting the keyboard M from being wet by rain or the like. Unlike the display device C on the trolley, the hand-held liquid crystal display panel L attached to the grip bar Q is close to the worker's face, so that it can be seen easily and the sun can be covered by the face. Moreover, since it is at hand, it is easy to frequently wipe raindrops as needed. For this reason, unlike the display device on the cart side, the hood is not essential, and the installation is omitted.

Referring to FIG. 4, the bottom of case B has an inverted T
A shaft I is attached between the surface of the angle I facing the housing B and the bottom surface of the housing B.
Is located. The shaft H is fixed to both side surfaces of the receiving frame D while maintaining a state parallel to the bottom surface of the receiving frame D. For this reason, the front end portion of the housing B is
And at the same time, while maintaining the engagement state with the shaft H, it is possible to advance / retreat a small distance corresponding to the length of the bent portion of the angle I.

Knobs G are mounted on both sides of the front end of the housing B. An arc-shaped guide groove F centering on the shaft H is formed in the receiving frame D, and the tilt angle of the housing B is adjusted by moving the knob G up and down in the guide groove F. A metal plate wider than the guide groove is screwed into the tip of the screw rod fixed to the knob G.

By rotating the knob G and holding the receiving frame D around the guide groove between the neck and the wide metal plate, the knob G can be moved to a desired position along the guide groove F of the receiving frame D. Fixed to The lower half of the rear end surface of the housing B forms an angle of 45 ° with the bottom surface so that the front end surface of the housing B is not in contact with the bottom surface of the receiving frame D even when the front end surface is raised to the maximum height. Is set to

Since the housing B can be advanced / retracted by a small distance corresponding to the length of the bent portion of the angle I, the knob G is connected to the branch portions F0, F0,
The front end of the housing B can be prevented from suddenly dropping and colliding with the truck even if the screw of the knob G is loosened due to vibration of the truck during the search operation or the like.

The hood K is rotatably mounted around a shaft T fixed to the upper surface of the front end portion of the housing B. Inside the both sides of the hood K, an arc-shaped stay J centered on the shaft T is formed. Small holes S0 and S1 are formed in the stay J, and protrusions of a push plate attached to both side surfaces of a front end portion of the housing B (not shown) are formed with small holes S0 and S1.
The hood K is fixed by entering S1 or S1. In a state in which the hood K is completely lowered, the surface of the display device C that protects the display surface of the display device C from rain or sun rays by forming the upper surface of the hood K in use is now used. Close and shield it to protect it from damage due to contact with foreign objects during transportation.

As described above, the hood can be folded inside the receiving frame for both miniaturization and covering when not in use. However, when it is not necessary to consider these points, the hood can be in a fixed state in which it cannot be folded.

[0020]

As described above in detail, the underground exploration apparatus of the present invention accommodates the signal processing unit inside a housing detachably and tiltably mounted on a trolley using the mounting mechanism. In addition, since the image display unit is attached to the front end of this housing, the simplicity of the configuration and the low cost associated with it are maintained, while the reflected light is generated due to the attachment of raindrops on the display unit and sunlight. The problem that the display screen is difficult to see can be effectively solved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external appearance of a subsurface exploration device according to an embodiment of the present invention in use.

FIG. 2 is a side view showing the appearance of the underground exploration device of the embodiment in use.

FIG. 3 is a side view showing an external appearance of the underground exploration device of the embodiment in a non-use state (transport / storage state).

FIG. 4 is a side view showing, on an enlarged scale, the appearance of a portion where a housing B is detachably and tiltably mounted on a cart A;

FIG. 5 is a side view showing the appearance of a conventional underground exploration device.

[Explanation of symbols]

 Reference Signs List A cart B housing for housing signal processing unit and display unit C display unit D receiving frame E fastener F guide groove G knob H shaft K hood

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshimitsu Nozu 6-22-12 Tamahira, Hino-shi, Tokyo F-term (reference) 5J070 AE07 AF04 AK39 AK40 BG03 BG33

Claims (3)

[Claims] 1. A trolley with movable wheels, a transmission / reception unit housed in the trolley, and image data generated by processing data of reflected waves obtained by the transmission / reception unit connected to the transmission / reception unit. A signal processing unit for storing data before or after processing and an image display unit for displaying image data created by the signal processing unit, wherein the signal processing unit is mounted The image display unit is mounted on the front end portion of the housing while being housed inside a housing detachably mounted on the carriage using a mechanism and tiltably using a tilt angle adjustment mechanism. An underground exploration device characterized in that: 2. The front end portion of the housing according to claim 1, further comprising a hood which is pulled out of the mounting mechanism when the underground exploration device is used, and is folded inside the mounting mechanism when not in use. Underground exploration equipment characterized. 3. The display device according to claim 1, further comprising: a second display device mounted on an end of a grip bar substantially horizontally mounted on a tip end of a push rod extending obliquely upward from the carriage. And an underground exploration device further comprising: