A zero distance measuring device

Abstract

The invention discloses a zero-distance measuring device, comprising: a shell, the shell is a cylindrical structure with one end open, a mounting seat is arranged at the bottom of the shell, a macro camera is arranged on the mounting seat, a polygonal film ruler is arranged at the top of the shell, the macro camera shoots the diseased part through the polygonal film ruler, the inner wall of the shell between the polygonal film ruler and the macro camera has a plurality of layers of light source bases extending in radial direction, the end surface of the light source base has a plurality of light sources, the irradiation direction of the light source is toward the polygonal film ruler, an elastic telescopic device is arranged between the polygonal film ruler and the light source base at the top, a protective retaining ring is sleeved on the outer side of the elastic telescopic device, the elastic telescopic device, the macro camera and the light source are controlled by a controller, so as to solve the technical problems in the prior art that the measuring ruler is easy to collide and break and the light source position is not dense, resulting in incomplete and unclear imaging.

Description

Technical Field

[0001] The invention belongs to the field of detection technology, and in particular relates to a zero-distance measurement device. Background Art

[0002] Underwater inspection of building objects has always been blank. The current cutting-edge technology is that divers take underwater cameras to take pictures. World-class projects including China, such as the Three Gorges Dam, the Hong Kong-Zhuhai-Macao Bridge and other large underwater buildings, do not have the technology and equipment to perform underwater inspections. The reason is that there is no remotely controlled measurement camera to perform accurate quantitative inspections of underwater building defects. Underwater inspections can be achieved with existing underwater robot technology, but underwater camera measurement has fundamentally changed from surface measurement in various structures and functions due to changes in the environment.

[0003] The first problem to be solved is sealing and preventing watertightness. As the underwater camera goes deeper, the pressure on the camera also increases. Secondly, the camera's measuring scale is prone to collision and breakage during movement underwater, and the single light source makes the image of the defective part unclear. Summary of the invention

[0004] The purpose of the present invention is to provide a zero-distance measuring device to solve the technical problems in the prior art that the measuring scale is easily broken by collision and the light source position is not dense, resulting in incomplete and unclear imaging.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A zero-distance measuring device comprises: a shell, the shell is a cylindrical structure with one end open, a mounting seat is arranged at the bottom of the shell, a macro camera is arranged on the mounting seat, a polygonal film ruler is arranged at the top of the shell, the macro camera shoots the diseased part through the polygonal film ruler, the inner wall of the shell between the polygonal film ruler and the macro camera has a plurality of layers of light source bases extending radially, the end surface of the light source base has a plurality of light sources, the irradiation direction of the light source is toward the polygonal film ruler, an elastic telescopic device is arranged between the polygonal film ruler and the light source base at the top, a protective retaining ring is sleeved on the outer side of the elastic telescopic device, and the elastic telescopic device, the macro camera and the light source are controlled by a controller.

[0007] The present invention discloses a zero-distance measuring device, wherein the elastic telescopic device comprises a telescopic spring, one end of the telescopic spring is connected to a polygonal film ruler, and the other end is connected to a light source base at the top, a telescopic power device is fixedly installed on the telescopic spring, an output end of the telescopic power device is connected to a telescopic pull rope, and the telescopic pull rope is connected to the polygonal film ruler.

[0008] In the zero-distance measuring device of the present invention, the polygonal film ruler has a film ruler mounting seat in the circumference, and the film ruler mounting seat is connected to the telescopic spring.

[0009] In the zero-distance measuring device of the present invention, an annular sealing rubber sleeve is arranged between the film ruler mounting seat and the topmost light source base.

[0010] In the zero-distance measuring device of the present invention, the top surface of the film ruler mounting seat is lower than the top surface of the polygonal film ruler.

[0011] In a zero-distance measuring device of the present invention, the top of the protective retaining ring is provided with a limiting convex ring extending in the radial direction, and the limiting convex ring covers and limits the film ruler mounting seat.

[0012] In the zero-distance measuring device of the present invention, the surface of the limiting convex ring is provided with a plurality of penetrating drainage and exhaust holes.

[0013] In the zero-distance measuring device of the present invention, the cross-section of the limiting convex ring is a wedge-shaped structure.

[0014] In the zero-distance measuring device of the present invention, the width of the light source base gradually increases from the polygonal film ruler to the macro camera side.

[0015] A zero-distance measuring device of the present invention has a connecting seat on the outer side of the bottom of the shell, and the connecting seat is used to connect with a diving device or a drone.

[0016] The beneficial effects of the present invention are as follows: a zero-distance measuring device is proposed, which can be retracted during movement by arranging a telescopic device at the bottom of the polygonal film ruler, and can be extended again when measurement is required and positioning is completed, thereby preventing the polygonal film ruler from being damaged during movement and positioning. At the same time, multiple levels of light source bases with different diameters are arranged, so that the irradiation range of light sources with different diameters can be set, so that the corresponding sizes of the polygonal film ruler can all be illuminated, making the imaging clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0019] Figure 2 It is a partial diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, a zero-distance measuring device comprises: a shell 1, wherein the shell 1 is a cylindrical structure with one end open, and the shell 1 is usually a funnel-shaped structure with a small bottom diameter and a large top diameter. A mounting seat 2 is provided at the bottom of the shell 1, and a macro camera 3 is provided on the mounting seat 2. A polygonal film ruler 7 is provided at the top of the shell 1, and the macro camera 3 takes pictures of the diseased part through the polygonal film ruler 7. The inner wall of the shell 1 between the polygonal film ruler 7 and the macro camera 3 has several layers of light source bases 4 extending radially, and the end surface of the light source base 4 has several light sources 5, and the irradiation direction of the light source 5 is toward the polygonal film ruler 7. An elastic telescopic device is provided between the polygonal film ruler 7 and the light source base 4 at the top, and a protective retaining ring 11 is mounted on the outside of the elastic telescopic device. The elastic telescopic device, the macro camera 3 and the light source 5 are controlled by a controller. It should be noted that Figure 1 The setting direction is the setting mode for measuring the vertical surface, and the top of the shell 1 referred to in the text is the open end. Its working principle is that when underwater measurement is required, the device is moved to the place where measurement is required, and the elastic telescopic device in the natural state makes the polygonal film ruler 7 move toward the side of the macro camera 3. When the measuring position is reached, the protective retaining ring 11 first contacts the position to be measured, and then the elastic telescopic device is slowly released, and the polygonal film ruler 7 is close to the position to be measured. The device can be moved manually or operated by a robot, and the operation of the camera is usually remotely operated, that is, after the operator observes through the macro camera 3, the operation is performed when shooting is required, and the remote data transmission and the linkage of various components are relatively mature technologies, which will not be repeated here.

[0022] In a preferred embodiment of the present invention, the elastic telescopic device includes: a telescopic spring 8, one end of the telescopic spring 8 is connected to the polygonal film ruler 7, and the other end is connected to the topmost light source base 4, the telescopic spring 8 is fixedly installed with a telescopic power device 9, the output end of the telescopic power device 9 is connected to a telescopic pull rope 12, and the telescopic pull rope 12 is connected to the polygonal film ruler 7, wherein the telescopic power device 9 can be a micro motor or a micro cylinder, etc.

[0023] In a preferred embodiment of the present invention, the polygonal film ruler 7 has a film ruler mounting seat 8 in the circumference, and the film ruler mounting seat 8 is connected to the telescopic spring 8, so that a mounting structure is provided without affecting the measurement accuracy of the polygonal film ruler 7.

[0024] In a preferred embodiment of the present invention, an annular sealing rubber sleeve 10 is provided between the film ruler mounting seat 8 and the topmost light source base 4, so that the polygonal film ruler 7 and the shell 1 form an organic sealed whole to prevent liquid from entering. At the same time, the sealing rubber sleeve 10 can realize the axial expansion and contraction of the shell 1.

[0025] In a preferred embodiment of the present invention, the top surface of the film ruler mounting seat 8 is lower than the top surface of the polygonal film ruler 7. This structure makes the top surface of the polygonal film ruler 7 close to the top height of the protective retaining ring 11, thereby achieving zero-distance shooting.

[0026] In a preferred embodiment of the present invention, the top of the protective retaining ring 11 has a radially extending limiting convex ring 14, and the limiting convex ring 14 covers and limits the film ruler mounting seat 8.

[0027] like Figure 2 As shown, the surface of the limiting convex ring 14 has a plurality of through drainage and exhaust holes 15, so that the internal liquid of the polygonal film ruler 7 can be discharged in time during the rising process.

[0028] In a preferred embodiment of the present invention, the cross-section of the limiting protruding ring 14 is a wedge-shaped structure.

[0029] In a preferred embodiment of the invention, the width of the light source base 4 gradually increases from the polygonal film ruler 7 to the macro camera 3 side.

[0030] In a preferred embodiment of the invention, a connection seat 13 is provided on the outer side of the bottom of the housing 1, and the connection seat 13 is used to connect with a diving device or a drone.

[0031] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A zero-distance measuring device, characterized in that: include: A shell (1), wherein the shell (1) is a cylindrical structure with one end open, a mounting seat (2) is arranged at the bottom of the shell (1), a macro camera (3) is arranged on the mounting seat (2), a polygonal film ruler (7) is arranged at the top of the shell (1), the macro camera (3) photographs the diseased part through the polygonal film ruler (7), the inner wall of the shell (1) between the polygonal film ruler (7) and the macro camera (3) has a plurality of layers of light source bases (4) extending radially, the end surface of the light source base (4) has a plurality of light sources (5), the irradiation direction of the light source (5) is divergent toward the polygonal film ruler (7), the polygonal film ruler (7) is arranged on the inner wall of the shell (1) between the polygonal film ruler (7) and the macro camera (3), An elastic telescopic device is provided between the film ruler (7) and the light source base (4) at the top, a protective retaining ring (11) is sleeved on the outside of the elastic telescopic device, and the elastic telescopic device, the macro camera (3) and the light source (5) are controlled by a controller; the elastic telescopic device comprises: a telescopic spring (8), one end of the telescopic spring (8) is connected to the polygonal film ruler (7), and the other end is connected to the light source base (4) at the top, a telescopic power device (9) is fixedly installed on the telescopic spring (8), and the output end of the telescopic power device (9) is connected to a telescopic pull rope (12), and the telescopic pull rope (12) is connected to the polygonal film ruler (7).

2. A zero-distance measurement device according to claim 1, characterized in that: The polygonal film ruler (7) has a film ruler mounting seat (8) in the circumferential direction, and the film ruler mounting seat (8) is connected to the telescopic spring (8).

3. A zero-distance measurement device according to claim 2, characterized in that: An annular sealing rubber sleeve (10) is provided between the film ruler mounting seat (8) and the light source base (4) at the top.

4. A zero-distance measurement device according to claim 3, characterized in that: The top surface of the film ruler mounting seat (8) is lower than the top surface of the polygonal film ruler (7).

5. A zero-distance measurement device according to claim 4, characterized in that: The top of the protective retaining ring (11) is provided with a radially extending limiting convex ring (14), and the limiting convex ring (14) covers and limits the film ruler mounting seat (8).

6. A zero-distance measurement device according to claim 5, characterized in that: The surface of the limiting convex ring (14) is provided with a plurality of drainage and exhaust holes (15) extending therethrough.

7. A zero-distance measurement device according to claim 6, characterized in that: The cross-sectional shape of the limiting convex ring (14) is a wedge-shaped structure.

8. A zero-distance measurement device according to claim 1, characterized in that: The light source base (4) gradually increases in width from the polygonal film ruler (7) to one side of the macro camera (3).

9. A zero-distance measurement device according to claim 1, characterized in that: The outer side of the bottom of the housing (1) is provided with a connection seat (13), and the connection seat (13) is used to be connected to a diving device or a drone.

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