JPS5882218A - Telescope for inspection of sewerage - Google Patents

Abstract

PURPOSE:To inspect a sewerage visually with an erect image, by converting the object image, which is focused by a variable focal lenth lens, to an erect image through a field lens, relay lens, and reflective mirror. CONSTITUTION:Plural light projecting devices A are interlocked with a scanning reflective mirror M7, which changes the elevation and the direction, to project light in a direction of retrieval. Objects in the range of a close distance or a far distance are inspected by a variable focal length lens which as a magnification varying part L2 for changing the focal length and a focusing lens part L1 for focusing. The object image focused by the variable focal length lens is converted to an erect image through a field lens L5, relay lens L6, and relfective mirror M2, and thus, the visual inspection due to an eyepiece mirror L7 and the photography are possible. A base B is provided under the telescope to not only change the direction of a casing D of the scanning reflective mirror M1 bus also install stably the telescope in the floor part of the sewerage.

Description

DETAILED DESCRIPTION OF THE INVENTION Normally, the sewer (1) is installed at a location 2.11 below the ground (4) and has a diameter of about Jjal ("'") installed at a distance of about 20 wh. ) because it is connected to the ground through.

The inspection telescope of the present invention is used to inspect the inside of the sewer (1) by means of occult vision or photography by inserting the inspection telescope into the hole (3)K, namely: (1) A scanning telescope capable of changing elevation and direction; A plurality of light projecting devices are linked to the reflecting mirror, and the reflector has a mechanism that allows it to always project light in the desired direction.

(2) Inspect objects from short distances to long distances at any imaging magnification using a variable focal length lens that has a variable magnification section that changes the focal length and a focusing lens section for focusing. It has a structure that allows it to

(3) It has a mechanism that converts the object image formed by the variable focal length lens into a true image using the field lens, relay lens, and reflector, and enables visual inspection using the eyepiece and photographing.

(4) A pedestal is provided at the bottom of the inspection telescope, which enables the azimuth of the scanning reflector housing to change, and also has a mechanism that allows the inspection telescope to be stably installed on the sewer floor. It's something.

Therefore, in the pigeon coop using the sewerage inspection telescope of the present invention, the telescope is installed at the edge of the manhole opening in an azimuthal direction, the entire telescope is stably installed on the underground floor, and the optical system is synchronized with the lighting device. Change the angle of elevation to the entire length of the inside of the sewer.
Since it is possible to freely select and focus on any location to find and inspect the authentic text image, it is possible for inspectors to manually inspect the interior of the sewer inside a manhole using a flashlight, as in the conventional sewer inspection method. This is a practical invention that allows accurate inspection using an optical device, unlike the inspection of uncertain bottles that involves irradiation.

You can focus on the desired location, and the variable magnification lens CL-
Move the lens to rotate the focal length. )K, the imaging magnification within the range of ζ can be arbitrarily selected and has 4#.

Variable focal length lens (II-)
) is converted into a true image by the field lens, relay lens CL♂, and reflector iK, so the eyepiece (L,)
K allows you to inspect the object as an authentic image, and at the same time as the stone, you can also attack it with an adder (P) and a K camera (0) to take a photo.

The upper part of the housing (D) of the scanning reflector 匈□) of this inspection telescope is connected to the mirror #(ν) through a backed bearing (1) in a waterproof state, and the lower partial backing It is connected to 4 dusts (B) through 9 bearings (G) to maintain its waterproof state.

The pedestal (1) has the role of stably installing the main inspection telephoto value on the sewer floor (2), and also serves as the housing of the scanning reflector (□).
])) can be freely changed in orientation with respect to the pedestal (B) and lens barrel (7) K.

Since the projector (M) is mounted on the housing (I) with both sides of the housing 9 (D) as bearings, it is linked to changes in the orientation of the housing (I), and as a result, it is used for scanning. It is possible to always project light in a direction that changes the direction of the reflector.

The light projector (Mu) is connected to the scanning reflector (Il) via the housing (Il).
Since it is a mechanism that works in conjunction with the scanning reflector (M9), it can always project light in the direction in which the scanning reflector (M9) changes its elevation angle.

Therefore, the inspection telescope of the present invention uses a projecting device (mu) that can always project light in a circular direction to inspect the internal condition of the sewer at any position in the vertical direction, horizontal direction, and depth direction. It has the feature that it can be visually inspected with the image magnification and the original image, and it can also be photographed.

The reflected light from objects inside the sewer illuminated by the floodlight (M) passes through the optical window (B) attached to the housing (D) and is reflected by the inclined scanning reflector (O11). reflected.

Since the scanning reflector (Ml) can be rotated by the shaft rod (1) integrated with the worm wheel (<1) using both sides of the casing (D) as bearings while maintaining a waterproof state, the casing (]))
The worm K attached to the turret axis changes the elevation angle of the scanning reflector 1), causing heat.

Also, since the shaft rod (X)K is integrated with a lighting device (Mu) consisting of a window glass (N) and a light bulb (Q), the lighting device (Mu) can be attached to both sides of the housing (D). Since the surface can be used as a bearing to rotate while maintaining a waterproof condition, the scanning reflector can always project light in the direction in which the angle of elevation changes. 2 The lower part of the housing (D) is connected to the pedestal (B) via a backed bearing (G) while maintaining a waterproof state], and the lower part of the housing (D) is
The upper part of ) is connected to the lens barrel (1) through a backing bearing (1) to maintain a waterproof state, so that the upper part of the housing (
Fix the internal gear (It) to the upper part of D) and attach the lens barrel (1).
When the spur gear (T) attached to the axis Km of the azimuth change motor (M,) with K fixed is engaged with the internal gear (R), the casing of the scanning reflector Nd (
D) can be given a change in orientation.

Since it is integrated with the light projector housing (CD), it is possible to always project light in the direction in which the scanning reflector (C) changes direction.

The pedestal (B) has the role of stably installing the inspection telescope on the sewer floor (2)K, and also serves as the housing (D) of the scanning reflector (2).
) with respect to the lens barrel (F) and the pedestal (B) K, it also has the role of independently changing the orientation.

A variable focal length lens angle where the lens barrel (V) is fixed to the lens barrel (1) K. ) is composed of a focusing lens %, ), a variable magnification lens CL2), a compensator CL age, and a master lens CL4).

The focal length of the variable magnification lens (variable focal length lens color due to the movement of In-) changes, but the focal position also changes, so the compensator (L,,) converts this change in focal position back to the original value. Move in a way that keeps you safe.

The lens (W) attached to the variable power lens metal rod (Y) is a gear (a) that slides with the lens barrel (V) via the variable power cam* (&) provided on the lens barrel (V). ) K fixed, ′
:1/ Pen sweater metal frame (Z) K-attached bottle (I)
is fixed to the gear (a) via a cam groove (1) provided in the lens barrel (V).

Lens tube (V) K is a motor (M), and when the gear (.) fixed to this motor shaft is fitted into the gear (11), the variable magnification lens (II♂ and compensator) are assembled. The variable focal length lens CLO) can be moved as desired to change the magnification of the variable focal length lens CLO).

A focusing lens metal frame (f) with gears is screwed to the lens barrel (V). The gear (g) attached to the - shaft of the 7 focusing motor fixed to the lens barrel (to) K is meshed with the gear of the focusing lens frame (f), so the focusing motor (7) is driven by the focusing motor (M-). Focusing is slowed down by moving the focusing lens ~V to focus on a place from a short distance to a long distance.With this variable focal length lens value, the first * (8□) of the object inside the sewer is It is possible to change the focusing magnification while fixing the position and focus at any location.

Town variable focal length lens~,)k 1st * (El,)
The field lens CL5), the relay lens color ♂, and the reflecting mirror 傅ω create an erect second lens (S-).

@we Bakin Hatosha 2 Rin (M- is used with a limit mirror (L,), and for photography, an adagetor (0) with a camera (0) attached is used.
P) can be attached to the reflective peg frame (1).

The inspection telescope of the present invention has a length of as much as 3.5 seconds, so the length of the inspection telescope is approximately 2.5 m (1), which is about 2.5 m long (1. Disassemble into two parts with k mount (h) attached, and flange (k) (1 m) with both lens barrel ends K1m attached.
) with (m), and fix the 7 langes (n), which can be installed at any position on the lens barrel (i), with the set screws (j) on the lens barrel (1). By attaching the telescope to the upper part of the pedestal (h) with casters (q), the inspection telescope can be used in a stable condition and can be transported and installed easily.

In the above device, the circuits for operating the light bulb (cL), elevation angle change motor (), azimuth change motor (%), magnification variable motor (CM5), and focusing motor (Q16) of the floodlighting device (MU) include the light bulb ( Q) switch (SV, ), elevation angle change motor switch (8W3), azimuth change motor CM4) switch (8W, ), envy motor ♂ switch (ay5), 7 orcusing motor (M♂ switch) (8Y-1 is connected to the electric wire, and a variable resistor ('vR1) ffRd (VB2)
(VRd ffR- is installed in each circuit or stand (h)
It is connected to the power supply ωno provided above.

The above switches and variable resistor dials are arranged on a panel and mounted on the mirror back IIK.

Each motor and light bulb are switched by the above-mentioned electrical wiring, and the variable resistor changes the speed of the motor and the brightness of the light bulb.

[Brief explanation of drawings]

Figure 1 is a sectional view of the inspection telescope, Figure 2 is a side view of the scanning reflector housing, Figure 3 is a side sectional view of the floodlight device, Figure 4 is an explanatory diagram of the camera installation state, Figure 5 The figure shows a front view of the switch and variable resistor panel, No. 6 IllF! Electrical system arrangement
It is l1ll. In addition, the code (mu) in the figure is 00. Floodlight device, (Town 10 pedestal, (
0)00. Camera, (D), Housing, (1), Bearing, <y>, Lens barrel, (σ)...Bearing% (
II)...Optical window 1 (engineering)...Shaft rod 1 (J)...
・Worm wheel, (K), , worm, (svl
) (sv3) (SW,) (8W,) (Iff-,,,
X (ff, (vRyu)CVR5)CrB2) (V
B33 (VB2), Variable resistor, (Eji01. Power supply, Patent applicant Goto Optical Laboratory Co., Ltd. Agent)

Claims (1)

[Claims] A sewerage inspection telescope according to (a) to (d) below. (a) A scanning reflector that can change its elevation angle and orientation has a mechanism in which a plurality of light projecting devices are linked and always project light in the direction that is desired to be searched. (b) Inspecting objects from short distances to long distances at any imaging magnification using a variable focal length lens that has a variable magnification section that changes the focal length and a focusing lens section for focusing. It has a mechanism that can do this. (c) It has a mechanism that converts the object image formed by the variable focal length lens into an upright image using a field lens, relay lens, and reflector, and allows for visual inspection and photography using a close-up mirror. (d) A pedestal is provided at the bottom of the main inspection telescope, which enables the azimuth of the scanning reflector housing to change, and has a mechanism that allows the main inspection telescope to be stably installed on the sewer floor.