CN218213609U

CN218213609U - Portable telescope glasses for engineering structure crack observation

Info

Publication number: CN218213609U
Application number: CN202222369966.5U
Authority: CN
Inventors: 聂忆华; 刘庆; 高闻靖; 徐利鑫; 钟世雄; 黄新摇
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-01-03
Anticipated expiration: 2032-09-07

Abstract

The utility model provides a portable telescope glasses for observing engineering structure cracks, which comprises a glasses frame and two glasses lenses fixed in the glasses frame, wherein the front ends of the two glasses lenses are provided with telescope components; the telescope component comprises an objective lens and an eyepiece, wherein the eyepiece is positioned in an eyepiece lens barrel which is fixed at the center of the spectacle lens; the objective lens is positioned in the objective lens barrel, the eyepiece lens barrel is connected with the objective lens barrel through an adapter ring, a reticle is arranged in the eyepiece lens barrel, and the reticle is positioned beside the eyepiece lens and close to one side of the objective lens; and the objective lens and the ocular lens are both aspheric lenses. The utility model discloses portable, use to can extensively should detect, check engineering practices such as accepting to needs, alleviate the drawback in the engineering practices work to a certain extent.

Description

Portable telescope glasses for engineering structure crack observation

Technical Field

The utility model belongs to the technical field of the engineering detects, a portable engineering structure crack is surveyd and is used telescope glasses is related to.

Background

A telescope (english name: telescope) is an optical instrument for observing a distant object by using a concave lens and a convex lens, wherein light rays passing through the lenses are refracted or reflected by the concave lens to enter a small hole and be converged to form an image, and then the image is magnified and formed by an eyepiece, so that the telescopic distance and the definition are continuously improved along with the development of science and technology at present.

The size of an object imaged on the retina behind the human eye mainly depends on the size of a visual angle formed by the human eye and the object, the smaller the visual angle is, the smaller the image is, and conversely, the larger the visual angle is, the larger the image is. However, the focusing ability of human eyes is limited, and the visual angle cannot be continuously increased, so that objects known by human eyes still have certain obstacles. The distance of photopic vision of the human eye is approximately 25cm, i.e. the most suitable and comfortable distance of use for the human eye under suitable lighting is 25cm. For an object with a certain distance, the field angle of the object can be enlarged through the telescope, so that human eyes can see a more detailed part.

The object is magnified by the telescope and then perceived by the brain to obtain the magnified object seen by human eyes. The objective lens is a convex lens, the ocular lens is a concave lens, the remote object light image is refracted by the objective lens and then imaged at the rear part of the objective lens, and the image is refracted by the ocular lens to form an amplified erect virtual image. Although the image obtained by the telescope is smaller than an actual object, the image is closer to the eyes and plays a role in magnifying by the ocular lens, so that the telescope finally plays a role in magnifying and telescoping.

The telescope optical instrument principle is applied to engineering practice, for example, cracks are generated due to the fact that a plurality of current engineering buildings are influenced by external environments or due to factors such as durability of the engineering buildings, and a plurality of engineering parts need to be detected in the engineering practice so as to master the current state of the structure. At present, the crack detection mainly comprises manual detection, semi-automatic detection and full-automatic detection, wherein the manual detection is still the mainstream, and the manual detection and the semi-automatic detection are mainly based on a digital image processing method. When the bridge crack detection adopts manual detection, detection personnel need to stand in a hanging basket to observe and record by naked eyes, and detection deviation caused by instruments, sight lines and the like is avoided, so that the reliability of a detection result is poor. On the other hand, the automatic acquisition vehicle acquires pavement pictures first and then identifies cracks through the image identification system, so that although image data can be directly processed, the engineering quantity is large, a large number of pictures need to be collected and then screened, and the automatic acquisition vehicle is not suitable for a plurality of engineering detection parts, such as high pier large-span bridge detection, high-rise wall detection and the like.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a portable engineering structure crack is surveyd and is used telescope glasses, portable, use to can the wide application in engineering practices such as needs detect, acceptance, solve the inconvenient drawback of observing of crack in the engineering practice work.

In order to solve the technical problem, the technical scheme adopted by the utility model is that the portable telescope glasses for observing the engineering structure crack comprises a frame and two glasses lenses fixed in the frame, wherein the front ends of the two glasses lenses are respectively provided with a telescope component; the telescope component comprises an objective lens and an eyepiece, wherein the eyepiece is positioned in an eyepiece lens barrel, and the eyepiece lens barrel is fixed at the center of the spectacle lens; the objective lens is positioned in the objective lens barrel, the eyepiece lens barrel is connected with the objective lens barrel through an adapter ring, a reticle is arranged in the eyepiece lens barrel, and the reticle is positioned beside the eyepiece lens and close to one side of the objective lens; the objective lens and the ocular lens are both aspheric lenses; the outer side of the eyepiece lens barrel is provided with a sliding groove, the sliding groove is formed in one side of the reticle, a shifting piece is arranged in the sliding groove in a sliding mode, and the shifting piece is fixed to the outer end of the reticle.

Furthermore, the adapter ring is circular, the diameter of the outer ring of the adapter ring is equal to the inner diameter of the objective lens barrel and is fixed at one end, far away from the objective lens, of the objective lens barrel, and the inner ring of the adapter ring is connected with the outer side of the eyepiece lens barrel through threads.

Furthermore, two baffles are fixedly arranged on the outer side of the eyepiece, and the two baffles are circular rings with the same size and shape; the inner diameter of the baffle is the same as the outer diameter of the eyepiece lens barrel, the outer diameter of the baffle is smaller than the inner diameter of the objective lens barrel, and the two baffles are sleeved and fixed on the outer side of the eyepiece lens barrel; one baffle is located at one end of the interior of the objective lens barrel, and the other baffle is located outside the objective lens barrel.

Furthermore, a plug is arranged in the objective lens barrel and used for fixing the position of the objective lens, two plugs are fixed in the eyepiece lens barrel, and the reticle and the eyepiece are located between the two plugs in the eyepiece lens barrel.

Further, the reticle is made of a transparent glass material; the reticle is provided with a grid, the grid is composed of a plurality of mutually perpendicular marking lines and adopts a 2mm multiplied by 2mm specification, the size of each small grid is 0.1mm multiplied by 0.1mm, and the upper end and the left side of the grid are provided with scales.

The utility model has the advantages that:

(1) The utility model discloses well adapter ring can be used to adjust the relative distance between objective and eyepiece to obtain the clear interface of observing, extend the usage scope of telescope glasses, but remote reading or detection.

(2) The utility model discloses conveniently carry, can require to change the eyepiece of different focuses according to the degree of accuracy, obtain the telescope of different magnifications, be suitable for the detection of different distance ranges.

(3) The utility model discloses well reticle can reduce the subjective error that produces when artifical detects, and the reliability is high, does benefit to the detection achievement and develops.

(4) The utility model discloses can directly combine eyesight correction lens and telescope, it is applicable in more crowds such as presbyopia, approximate eye.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model discloses portable engineering structure crack is surveyd and is used telescope glasses structure plane sketch.

Fig. 2 is a schematic view of a reticle according to an embodiment of the present invention.

Fig. 3 is a schematic view of a frame structure according to an embodiment of the present invention.

Fig. 4 is a three-dimensional schematic diagram of the portable engineering structure crack observation telescope glasses of the embodiment of the utility model.

Fig. 5 is a schematic structural view of a telescope assembly according to an embodiment of the present invention.

In the figure, 1 is an objective lens, 2 is an ocular lens, 3 is a reticle, 4 is a baffle, 5 is a plug, 6 is an eyeglass lens, 7 is an eyeglass frame, 8 is an adapter ring, 9 is a chute, and 10 is a plectrum.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-5, the utility model provides a portable telescope glasses for observing engineering structure cracks, which comprises a frame 7 and two glasses lenses 6 fixed in the frame 7, wherein the front ends of the two glasses lenses 6 are provided with telescope components; the telescope component comprises an objective lens 1 and an ocular lens 2, wherein the objective lens 1 is positioned in an objective lens barrel, the ocular lens 2 is positioned in an ocular lens barrel, and the ocular lens barrel is connected with the objective lens barrel through an adapter ring 8; the eyepiece lens barrel is fixed at the center of the spectacle lens 6; the spectacle lenses 6 are fixedly arranged in the spectacle frames of the spectacle frames 7; a reticle 3 is arranged in the eyepiece lens barrel, and the reticle 3 is positioned beside the eyepiece 2 and close to one side of the objective lens 1. The objective lens 1 and the ocular lens 2 are designed by adopting aspheric lenses to eliminate edge distortion and spherical aberration, so that the data reading tends to be true as much as possible; the spectacle lenses 6 are customized according to the physiological parameters of pupils and the like of a user, and a pair of plano glasses can be used in normal eyes, if a wearer is a myopia person or a presbyopic person, the corresponding spectacle lenses 6 can be configured, so that the aim of diversification is fulfilled.

In some embodiments, the adapter ring 8 is circular, the outer ring diameter of the adapter ring 8 is equal to the inner diameter of the objective lens barrel and is fixed at one end of the objective lens barrel away from the objective lens 1, and the inner ring of the adapter ring 8 is connected with the outer side of the eyepiece lens barrel through threads. The adapter ring 8 is used to adjust the focal length between the objective lens 1 and the eyepiece 2. The utility model discloses a portable glasses's magnification is the quotient (> 0) of objective 1 and 2 focuses of eyepiece, and this portable glasses's magnification is set for should not too big, and the field of vision is less and easily trembles when the magnification is too big, and difficult the observation consequently get 4-6 times can. During observation, the objective lens barrel can be rotated to focus according to the distance and the size of an object, and when the distance between the eyepiece 2 and the objective lens 1 is in a proper position, the picture becomes clear and is easy to observe.

In some embodiments, to limit the range of movement of the adaptor ring 8, two baffles 4 are fixed outside the eyepiece 2; the two baffles 4 are circular rings with the same size and shape; the inner diameter of the baffle 4 is the same as the outer diameter of the eyepiece lens barrel, the outer diameter of the baffle 4 is smaller than the inner diameter of the objective lens barrel, and the baffle 4 is sleeved and fixed on the outer side of the eyepiece lens barrel; one baffle 4 is located inside the objective lens barrel and the other baffle 4 is located outside the objective lens barrel. The baffle 4 is used for limiting the moving range of the adapter ring 8 when the objective lens cone rotates, and the objective lens cone and the eyepiece lens cone are prevented from falling off or sliding off in the focusing process.

In some embodiments, a plug 5 is provided in the objective lens barrel for fixing the position of the objective lens 1, two plugs 5 are fixed in the eyepiece lens barrel, and the reticle 3 and the eyepiece 2 are provided between the two plugs 5 in the eyepiece lens barrel for fixing the positions of the eyepiece 2 and the reticle 3.

In some embodiments, the materials and structural styles of the eyepiece lens barrel, the objective lens barrel and the lens frame 7 conform to the wearing requirements of human body, so as to ensure the wearing comfort; adopt light-duty macromolecular material, avoid glasses overweight to make the person of wearing produce tired out.

In some embodiments, the reticle 3 is made of transparent glass material and is as close as possible to the ocular lens 2 to ensure the real measurement reading of the object data. As shown in fig. 2, in the present embodiment, a plurality of mutually perpendicular marking lines are processed on the reticle 3 to form a marking grid, the grid is 2mm × 2mm, each small grid is 0.1mm × 0.1mm, and the upper end and the left side of the grid are provided with scales. When observing the object after objective 1 and eyepiece 2 effect, if read the crack width, only need direct reading data, because crack width, length and the equal multiple of net scale all enlarge this moment. If the data of the identified object is not horizontal or vertical, the measurement can be directly performed by rotating and adjusting the angle of the reticle 3 without additional calculation.

In some embodiments, in order to adjust the angle of the reticle 3, referring to fig. 5, a sliding groove 9 is formed in the outer side of the eyepiece lens barrel, the sliding groove 9 is formed in one side of the reticle 3, a poking piece 10 is slidably arranged in the sliding groove 9, the poking piece 10 is fixed at the outer end of the reticle 3, and the poking piece 10 is poked to enable the poking piece 10 to slide in the sliding groove 9, so that the reticle 3 is driven to rotate to adjust the angle of the reticle 3.

When the portable telescope glasses are used, a wearer only needs to work normally according to the original working mode of the wearer, the utility model discloses only play a role in observing and identifying objects and can directly read the reliability, and avoid shaking the drawback of the handheld telescope, also reach the original purpose of convenient carrying.

The utility model discloses utilize this optical instrument principle of Galileo telescope to combine together with the spectacle frame, removed the shake drawback of hand-held type from, directly follow people's eye and carry out the object observation, alleviated human error and partial operation disadvantage to a certain extent. The materials and the structural style of the frame and the lens cone accord with the wearing requirements of human bodies, and the light polymer material is adopted, so that the use comfort of a wearer during operation is ensured, and the error is reduced. The utility model discloses a can select established telescope multiple according to the operation accuracy requirement when using, the use of adapter ring can adjust the distance relation between objective 1 and eyepiece 2 to a certain extent in order to obtain more clear field of vision. The reticle 3 is arranged between the eyepiece 2 and the objective lens 2, and is superior to the reticle 3 and arranged between the eyepiece 2 and the spectacle lens 6, the reticle scale and an object are simultaneously amplified by the eyepiece 2, so that the original data of the target can be directly obtained, the target related data can be obtained by conversion according to the multiple of the telescope, and meanwhile, the reticle 3 can be rotated to adjust the angle so that the measured object in each trend can directly read the data without complex calculation.

The utility model discloses in some engineering practices of mainly used, detect like asphalt concrete pavement crack, bridge quality such as overpass detects, manages aspects such as house acceptance. For the inconvenient detection part or the incomplete work part touched by human eyes, the telescope can be used for the operator to complete the operation in a time-saving and labor-saving way. In bridge detection, detection personnel stand in the cradle of the bridge inspection vehicle, and move the cradle through the bridge inspection vehicle to recognize data such as crack size and position by naked eyes. The bridge inspection vehicle is the most common detection tool for detecting the bridge at present, but the operation of the bridge inspection vehicle still has certain dangerousness, and particularly for the positions such as piers below a bridge floor, the hanging basket is difficult to accurately reach the positions, and the sight of naked eyes is dark. However, when the portable telescope is used for observing flesh eyes, crack data can be directly read at a certain position away from a target, the movement of a hanging basket is reduced, the phenomenon that tiny cracks are ignored by naked eyes is avoided to a certain extent, and further development of the cracks can be prevented in advance. The working efficiency is improved in the crack detection, and the reliability of the working data is ensured. The utility model discloses simple structure, convenient to use, but wide application in engineering practice or other witnessed inspections fields.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A pair of portable telescopic glasses for observing cracks of engineering structures is characterized by comprising a glasses frame (7) and two glasses lenses (6) fixed in the glasses frame (7), wherein the front ends of the glasses lenses (6) are respectively provided with a telescope component; the telescope assembly comprises an objective lens (1) and an eyepiece lens (2), wherein the eyepiece lens (2) is positioned in an eyepiece lens barrel which is fixed at the center of a spectacle lens (6); the objective lens (1) is positioned in an objective lens barrel, the eyepiece lens barrel is connected with the objective lens barrel through an adapter ring (8), a reticle (3) is arranged in the eyepiece lens barrel, and the reticle (3) is positioned beside the eyepiece (2) and close to one side of the objective lens (1); the objective lens (1) and the ocular lens (2) both adopt aspheric lenses; the eyepiece lens barrel is characterized in that a sliding groove (9) is formed in the outer side of the eyepiece lens barrel, the sliding groove (9) is formed in one side of the reticle (3), a shifting piece (10) is arranged in the sliding groove (9) in a sliding mode, and the shifting piece (10) is fixed to the outer end of the reticle (3).

2. The telescopic glasses for observing the cracks of the portable engineering structure according to claim 1, wherein the adapter ring (8) is circular, the diameter of the outer ring of the adapter ring (8) is equal to the inner diameter of the objective lens barrel and is fixed at one end of the objective lens barrel far away from the objective lens (1), and the inner ring of the adapter ring (8) is in threaded connection with the outer side of the objective lens barrel.

3. The portable telescopic glasses for observing the cracks of the engineering structures according to claim 1, wherein two baffles (4) are fixedly arranged on the outer side of the eyepiece (2), and the two baffles (4) are circular rings with the same size and shape; the inner diameter of the baffle (4) is the same as the outer diameter of the eyepiece lens barrel, the outer diameter of the baffle (4) is smaller than the inner diameter of the objective lens barrel, and the two baffles (4) are sleeved and fixed on the outer side of the eyepiece lens barrel; one baffle (4) is positioned at one end inside the objective lens barrel, and the other baffle (4) is positioned outside the objective lens barrel.

4. The portable telescopic glasses for observing the engineering structure crack as claimed in claim 1, wherein a plug (5) is arranged in the objective lens barrel for fixing the position of the objective lens (1), two plugs (5) are fixed in the eyepiece lens barrel, and the reticle (3) and the eyepiece (2) are positioned between the two plugs (5) in the eyepiece lens barrel.

5. The portable telescopic spectacles for observing engineering structural cracks of claim 1, wherein the reticle (3) is made of a transparent material; the reticle (3) is provided with a grid, the grid is formed by a plurality of mutually perpendicular marking lines, the grid is of a 2mm multiplied by 2mm specification, the size of each small grid is 0.1mm multiplied by 0.1mm, and the upper end and the left side of the grid are provided with scales.