JPH07103762A - Cover for optical equipment - Google Patents

Abstract

PURPOSE:To provide a cover for protecting an optical device from wind, rain etc. CONSTITUTION:A cover 3 for housing a survey equipment 1 is constituted of a base part 31 where the level stand of the survey equipment 1 is placed and an upper case 33 which is placed on the base part 31 so that the survey equipment 1 can be covered, an engagement recessed part 3311 where a post 1301 of the survey equipment 1 is engaged is formed at a recessed part 3305 of the upper case 33, and a defective part 3313 is formed at the part of the upper case 33 where a front 1401 of an optical unit 15 of the survey equipment 1 faces while the upper case 33 covers the base part 31. Glasses 37A and 37B are engaged to the defective part 3313, at the same time a heat-insulating material 35 is filled between an outer wall 3301 and an inner wall 3303 of the upper case 33, and further a cooling unit for cooling the air inside a space S for housing the survey equipment 1 which is demarcated by the upper surface 3101 of the base part 31 and the recessed part 3305 of the upper case 33 and a brush 39 sliding on the outer wall 3301 of the upper case 33 due to the rotation of the upper case 33 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for housing an optical instrument such as a light source of a surveying instrument or an automatic tracking device using light waves.

[0002]

2. Description of the Related Art Conventionally, surveying work outdoors, such as at a construction site, is generally performed when the weather is good. When the weather is bad, the surveying instrument is interrupted by covering the surveying instrument with a sheet and exposing the surveying instrument to wind and rain. To prevent. Also, if dust or the like adheres to the surveying optical system such as the collimation telescope of the surveying instrument or the light wave distance measuring unit,
When the surveyor uses the surveying device outdoors, the surveyor will not be able to collimate the surveyed object with the collimation telescope or transmit / receive the distance measurement light waves, which will interfere with the surveying work. Is regularly wiped with a cloth.

[0003]

By the way, in recent years, it has been attempted to remotely operate a surveying instrument installed at a surveying point to unmanned the surveying work. When unmanning such surveying work, personnel are not placed near the surveying instrument.Therefore, especially when the surveying point is outdoors, protect the surveying instrument from wind, rain, dust, etc. without using human hands. Therefore, it is necessary to take measures to prevent breakdown of the surveying instrument and prevent the surveying work from being disturbed. Also, when installing an automatic tracking device using light waves at an unmanned tracking point outdoors,
As in the case of surveying instruments, it is necessary to take measures to protect the light source of the automatic tracking device from wind, rain, dust, and the like. The present invention is
It was made in view of the above circumstances, and its purpose is to protect optical instruments such as surveying instruments and automatic tracking devices from wind and rain without manual labor, and to enable unmanned work. Further, it is to provide a cover for an optical device capable of preventing measurement work and automatic tracking operation from being hindered by high heat and dust.

[0004]

In order to achieve the above-mentioned object, the present invention provides a base, a support provided on the base so as to be rotatable in a horizontal plane, and an optical system provided on the support. And a base for mounting the base, and a space that is erected on the base to surround the optical device and defines a space for accommodating the optical device. An upper case, a transparent window portion provided in the upper case portion to which the optical system is directed, and a turning means for turning the upper case on the base in conjunction with the supporting portion. And

Further, according to the present invention, the turning means is constituted by an engaging portion provided inside the upper case and engaging with the supporting portion. Furthermore, the present invention further comprises a heat insulating material provided inside the upper case excluding the transparent window portion, and a cooling unit provided on the base to cool air in the space. did. Further, the present invention further includes a brush supported by the base and slidably contacting the transparent window portion by turning of the upper case to remove deposits on the transparent window portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of a surveying instrument cover according to an embodiment of the present invention, in which 1 denotes a surveying instrument and 3 denotes a cover, respectively.

The surveying instrument 1 includes a leveling table (corresponding to a base) 1
1, support 13, optical unit 15, collimation telescope 1
7 and a light wave distance measuring unit 19.

The supporting portions 13 are parallel to each other at intervals in the horizontal direction and extend in the vertical direction.
1 and a connecting portion 1303 for connecting the lower portions of both columns 1301
Is formed in an inverted gate shape by and and is provided on the leveling table 11 so as to be rotatable in a horizontal plane. The pair of columns 130
A horizontal axis 1305 is bridged between the 1 and the horizontal axis 13
The optical unit 15 is supported by 05 so as to be swingable in the vertical direction. Incidentally, in FIG. 1, reference numeral 1307 denotes a portable handle of the support portion 13.

The collimating telescope 17 is accommodated in the optical unit 15 so as to extend in the horizontal direction, and the lens 1701 on the most surveyed side of the collimating telescope 17 is located above the front surface 1501 of the optical unit 15. It is installed in. Further, the light wave distance measuring unit 19 is also the collimation telescope 17
Similarly to the above, the light entrance / exit surface 1 is housed in the optical unit 15 and through which the light wave for distance measurement of the light wave distance measuring section 19 passes.
Reference numeral 901 is provided below the front surface 1501 of the optical unit 15.

The support 13 is swung by a motor (not shown) provided in the leveling table 11, and the optical unit 15 is swung. The optical unit 15 is not provided in the support 13. It is made by the motor of. The image of the object to be surveyed which is collimated by the collimating telescope 17 is converted into an electric image signal by a CCD image sensor (not shown) housed in the optical unit 15 and is subjected to predetermined signal processing. , Is output to the outside from a video signal output terminal (not shown) provided on the leveling table 11. Further, the measurement result of the distance to the object to be measured by the light wave distance measuring unit 19 is output to the outside from the signal output terminal (not shown) provided on the leveling table 11 together with the video signal output terminal. Further, in the present embodiment, the collimating telescope 17 and the light wave distance measuring section 19 correspond to an optical system.

The cover 3 has a base 31 on which the leveling table 11 of the surveying instrument 1 is placed, an upper case 33 provided upright on the base 31, a heat insulating material 35 provided on the upper case 33, and The glass 37A, 37B, and a cooling unit 38 and a brush 39 arranged on the base 31 are provided.

The upper case 33 has a double structure composed of a light-shielding outer wall 3301 and an inner wall 3303 made of reinforced plastic or the like, and is formed in a cylindrical shape which is slightly larger than the surveying instrument 1, and these outer wall 3301 and inner wall 3303 are formed. The heat insulating material 35 is filled between them. An open concave portion 3305 is formed in the lower portion of the upper case 33.
305 has a large-diameter portion 3307 formed near the bottom thereof, and a small-diameter portion 3309 is formed above the large-diameter portion 3307. Engagement recesses 3311 (corresponding to the engagement portions) are formed vertically extending at positions horizontally opposed to each other on the inner wall 3303 in a shape corresponding to the pair of columns 1301 of the survey instrument 1. , These both engaging recesses 33
A cutout 3313 is formed at a position of the upper case 33, which is shifted in phase by 90 ° from the position 11 in the circumferential direction of the upper case 33.

The base 31 is formed in a disk shape which is slightly larger than the upper case 33, the leveling table 11 of the surveying instrument 1 is placed on the upper surface 3101 of the base 31, and the surveying is further performed. The upper case 33 is covered on the upper surface 3101 so as to cover the container 1, and the upper case 33 is covered on the base portion 31 so that the upper surface 3101 of the base portion 31 and the recess 3305 of the upper case 33 A space S accommodating the surveying instrument 1 is defined. An air passage 3105 that connects the space S and the peripheral surface 3103 of the base 31 to the base 31 in a state where the upper case 33 covers the base 31.
Two are provided.

The glasses 37A and 37B are made of, for example, tempered heat resistant glass. One glass 37A is formed into a curved surface having substantially the same diameter as that of the outer wall 3301 so that the notch 3
313 is fitted to the outside of the glass 313, the other glass 37B is formed into a curved surface having substantially the same diameter as the large diameter portion 3307 of the concave portion 3305, and is spaced inside the one glass 37A inside the notch 3313. It is fitted.

The cooling unit 38 is provided with a blower and a heat exchanger (neither is shown), and the air outside the cover 3 is introduced into the space S through the air passage 3105 by the blower. By being sent in, the air in the space S is discharged to the outside of the cover 3 through the air passage 3105, and the temperature difference between the discharged air and the air sent into the space S. The air sent into the space S is cooled by the heat exchanger.

The brush 39 is attached to the upper end side of an arm 3901 supported by the base portion 31, and the tip thereof is in contact with the outer wall 3301 of the upper case 33. In this embodiment, the upper case 33 is used. The brush 39 is provided with a vertical length corresponding to. The arm 3901 extends vertically along the outer side of the outer wall 3301 of the upper case 33, and the lower end of the arm 3901 has a peripheral surface 3 of the base 31.
It is supported by 103. In this embodiment, the transparent window portion is constituted by the cutout portion 3313 of the upper case 33 and the glasses 37A and 37B.

Next, the operation will be described. First, on the upper surface 3101 of the base 31, the air passages 3105
The leveling table 11 is placed so as not to block the above, and subsequently, the pair of support columns 1301 of the surveying instrument 1 are fitted into the engaging recesses 3311 of the inner wall 3303 of the upper case 33, respectively, and The front surface 1501 of the optical unit 15 is exposed to the cutout 3313, the upper case 33 is covered on the base 31, and the surveying instrument 1 is housed in the space S.

With the surveying instrument 1 housed in the space S, the outside of the cover 3 and the space S are substantially thermally insulated by the double glass 37A, 37B and the heat insulating material 35, and The cooling unit 38 sends the cooled air into the space S to prevent the temperature in the space S from rising. Further, when the support portion 13 is swung while the surveying instrument 1 is housed in the space S, the support 1301 and the engagement recess 3311 are fitted to each other, so that the upper case 33. Is the support 1
The lens 1 of the collimating telescope 17 is rotated together with the lens 3
701 and the light incident / exiting surface 1901 of the light wave distance measuring unit 19 always face the glass 37A, 37B. Therefore, the field of view of the collimating telescope 17 and the optical path of the light waves entering and exiting the light wave distance measuring unit 19 are always ensured regardless of the turning position of the supporting unit 13 and the swinging position of the optical unit 15.

Further, when the upper case 33 is rotated integrally with the support portion 13, the tip of the brush 39 contacting the outer wall 3301 slides on the outer wall 3301 in the circumferential direction, and the brush 39 By sliding the glass 3
Adhesives such as dust adhering to 7A are removed.

Thus, according to this embodiment, the surveying instrument 1
The cover 3 for housing the surveying instrument 1 comprises a base 31 on which the leveling table 11 of the surveying instrument 1 is placed, and an upper case 33 which covers the surveying instrument 1 and covers the base 31. The upper case 33 is provided with an engaging recess 3311 into which the support 1301 is fitted.
Of the optical unit 15 of the surveying instrument 1 with the upper case 33 covered on the base 31.
1 forms a notch 3313 in the upper case 33, and the notches 3313 are fitted with glasses 37A and 37B, and a heat insulating material 35 is filled between the outer wall 3301 and the inner wall 3303 of the upper case 33, Furthermore, the upper surface 310 of the base 31
1 and the recessed portion 3305 of the upper case 33 for cooling the air in the space S for housing the surveying instrument 1
And the outer wall 3 of the upper case 33 as the upper case 33 turns.
And a brush 39 that slides on 301.

For this reason, the upper case 33 protects the surveying instrument 1 from wind and rain, and it is possible to prevent the surveying instrument 1 from being hindered due to a malfunction of the surveying instrument 1, and the heat insulating material 35 and the two insulators. The heavy glass 37A, 37B can protect the surveying instrument 1 from high temperatures and prevent the surveying accuracy from being lowered due to the influence of heat. Further, by the glass 37A, 37B of the upper case 33 that rotates integrally with the support portion 13 of the surveying instrument 1, the field of view of the collimating telescope 17 and the optical path of the light wave entering and exiting the light wave distance measuring portion 19 are It is always secured irrespective of the turning of the support portion 13 and the swinging of the optical unit 15, and the brush 39 removes dust adhering to the glasses 37A and 37B, thereby hindering the collimation operation and distance measurement operation. Can be prevented. Therefore, it is possible to easily prevent the occurrence of various items that hinder the surveying operation by the surveying instrument 1 without using human hands. For example, when the surveying operation is performed by remote control and the surveying point is unmanned, it is used. It is suitable.

In the present embodiment, the structure in which the cover 3 is provided with the cooling unit 38 and the brush 39 has been described, but they may be omitted. Further, in the present embodiment, the configuration has been described in which the engaging recess 3311 of the upper case 33 is fitted to the support 1301 of the surveying instrument 1 and thereby the upper case 33 is integrally swiveled with the support portion 13 of the surveying instrument 1. The means for turning the upper case 33 in conjunction with the support portion 13 such as turning the upper case 33 in synchronization with the support portion 13 by its own drive source is not limited to that shown in the embodiment. It is optional. Furthermore, in the present embodiment, the upper case 33 and the base 31 are formed in the shape of a cylinder and a disk, respectively, but the shape of the upper case 33 and the base 31 in plan view is not limited to a circle, but may be a triangle or a triangle. It is arbitrary such as a polygonal shape such as a quadrangle or a hexagon. Further, in the present embodiment, the surveying instrument 1 was described as an example of the optical device, but it goes without saying that the present invention is also applicable to an optical device such as a light source of an automatic tracking device using a light wave.

[0023]

As described above, according to the present invention, an optical device including a base, a support provided on the base so as to be rotatable in a horizontal plane, and an optical system provided on the support. A cover for accommodating a base, and a base on which the base is placed, and standing upright on the base so as to surround the optical device,
An upper case defining a space in which the optical device is housed,
Since the transparent window portion provided in the upper case portion to which the optical system is directed and the turning means for turning the upper case on the base in conjunction with the support portion are provided, a surveying instrument or Protects optical devices such as automatic tracking devices from wind and rain without manual labor, prevents damage to those optical devices, and does not interfere with surveying or automatic tracking operations, enabling unmanned surveying and automatic tracking. can do.

[Brief description of drawings]

FIG. 1 is a side sectional view of a surveying instrument cover according to an embodiment of the present invention.

FIG. 2 is a plan sectional view of the upper case shown in FIG.

[Explanation of symbols]

 1 Surveyor (Optical Instrument) 11 Leveling Platform (Base) 13 Support 17 Collimation Telescope (Optical System) 19 Lightwave Range Finder (Optical System) 3 Cover 31 Base 33 Upper Case 3311 Engagement Recess (Engagement) ) 3313 Missing part (transparent window part) 35 Heat insulating material 37A, 37B Glass (transparent window part) 38 Cooling unit 39 Brush S Space

Claims (4)

[Claims] 1. A cover for accommodating an optical device including a base, a support provided on the base so as to be rotatable in a horizontal plane, and an optical system provided on the support, wherein the base is A base to be placed, an upper case standing upright on the base to surround the optical device and defining a space in which the optical device is accommodated, and the upper case portion to which the optical system is directed. A cover for optical equipment, comprising: a transparent window portion provided on the base; and a turning means that turns the upper case on the base in conjunction with the support portion. 2. The optical device cover according to claim 1, wherein the turning means is formed of an engaging portion provided inside the upper case and engaging with the supporting portion. 3. The heat insulating material provided inside the upper case excluding the transparent window portion, and a cooling unit provided on the base to cool the air in the space. Alternatively, the optical device cover according to the item 2. 4. The brush according to claim 1, further comprising a brush which is supported by the base and which is slidably contacted with the transparent window portion by the turning of the upper case to remove an adhering matter from the transparent window portion.
Cover for the described optical equipment.