Cable detection device

Abstract

The utility model relates to the technical field of cable detection, and discloses a cable detection device, which comprises a shell provided with a first detection groove for a cable to pass through in a suspended manner, and the bottom surface of the first detection groove is a semicircular reflecting surface; the center line of the semicircular reflecting surface is higher than the center line of the cable passing through the first detection groove; the first detection camera is arranged on the notch side of the first detection groove and located over the cable; the bottom surface image and at least part of the side surface image of the cable are reflected to the first detection camera through the semicircular reflecting surface, and the first detection camera can directly photograph the top surface of the cable. According to the cable detection device, the size and the production cost can be further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection, in particular to a cable detection device. Background Art

[0002] At present, machine vision detection and maintenance are gradually being adopted for some products such as cables, wires, and cables used for lifting, conveying, installing, and connecting. Especially for some cables such as sightseeing cables used for transporting people, during long-term transportation, the cables will have quality defects such as wear and damage, which will directly affect the life safety of the transported people.

[0003] Chinese Patent CN210690440U discloses a cable vision detection module. Three camera devices arranged in a circumferential array on a support mechanism are used to detect a cable passing through the support mechanism, and a light source surrounds the cable 360°. The light source is used to irradiate the cable located in the support mechanism, and the camera device takes pictures of the continuously sliding cable in the support mechanism. In the existing cable vision detection module, at least three camera devices need to be designed, resulting in a relatively large overall volume and high cost of the cable vision detection module.

[0004] In view of this, it is necessary to design a cable detection device that can further reduce the volume and production cost.

[0005] The above information is given as background information only to assist in understanding the present disclosure, and it is not determined or admitted whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model

[0006] The utility model provides a cable detection device that can further reduce the volume and production cost.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A cable detection device includes:

[0009] A housing provided with a first detection groove for the cable to pass through suspended, and the bottom surface of the first detection groove is a semi-circular reflecting surface; the center line of the semi-circular reflecting surface is higher than the center line of the cable passing through the first detection groove;

[0010] A first detection camera is arranged on the side of the notch of the first detection groove and directly above the cable; the bottom surface image and at least part of the side surface image of the cable are reflected to the first detection camera through the semi-circular reflecting surface, and the first detection camera can directly take pictures of the top surface of the cable.

[0011] Optionally, the housing is further provided with a second detection groove communicating with the first detection groove;

[0012] The extending direction of the second detection groove is consistent with that of the first detection groove. The cross-section of the second detection groove perpendicular to its extending direction is trapezoidal, and the opposite side groove walls of the second detection groove are inclined reflecting surfaces, and the two inclined reflecting surfaces are symmetrically arranged;

[0013] The cable detection device further includes a second detection camera, which is arranged on the notch side of the second detection groove and directly above the cable; Images on both sides of the cable are reflected to the second detection camera through the opposite side groove walls of the second detection groove.

[0014] Optionally, it further includes a coaxial light source installed in the housing;

[0015] The coaxial light source includes a beam splitter located on one side of the top of the first detection groove and a light emitting component installed on one side of the beam splitter; The light emitted by the light emitting component is directed towards the first detection groove through the beam splitter.

[0016] Optionally, a focusing lens is further provided on the top plate of the housing, and the focusing lens is located between the beam splitter and the first detection camera.

[0017] Optionally, the radius of the semi-circular reflecting surface is a, the diameter of the cable is b, and the minimum distance from the center line of the cable to the semi-circular reflecting surface is c;

[0018] Wherein, a≥3b, b≤c≤2b.

[0019] Optionally, the housing forms a detection hole for the cable to pass through, and the detection hole communicates with the first detection groove.

[0020] Optionally, a diffusion plate is further provided between the light emitting component and the beam splitter.

[0021] Optionally, a diffused light bead is further installed at the bottom of the first detection groove;

[0022] The diffused light bead is located directly below the cable passing through the first detection groove, and the width of the light bead is smaller than the width of the cable.

[0023] Optionally, the center line of the semi-circular reflecting surface is directly above the center line of the cable in the first detection groove.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The cable detection device provided by the present utility model is provided with a first detection groove, and the first detection groove is a semi-circular reflecting surface, so that the first detection camera at the top of the cable can directly take pictures of the top surface of the cable, and the first detection camera can take pictures of the bottom surface and part of the side surface of the cable through the semi-circular reflecting surface, so as to be able to completely detect the entire circumferential surface of the cable. The cable detection device in this embodiment can achieve the structure of detecting the entire outer circumference of the cable without setting multiple detection cameras through a clever structural design, effectively reducing the volume and reducing the production cost.

[0026] The present utility model has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent detailed description, or will be described in detail in the accompanying drawings incorporated herein and the subsequent detailed description. These accompanying drawings and detailed description are jointly used to explain the specific principles of the present utility model. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0028] Figure 1 is a front view schematic diagram of the cable detection device provided by the embodiment of the present utility model;

[0029] Figure 2 is Figure 1 a sectional structure schematic diagram taken along A-A in

[0030] Figure 3 is this Figure 1 a sectional structure schematic diagram taken along B-B in

[0031] Figure 4 is a three-dimensional structure schematic diagram of the cable detection device provided by the embodiment of the present utility model;

[0032] Figure 5 is a three-dimensional structure schematic diagram of the cable detection device under another viewing direction provided by the embodiment of the present utility model;

[0033] Figure 6 is a structure schematic diagram of the cable detection device provided by the embodiment of the present utility model with one side end hidden;

[0034] Figure 7 is a structure schematic diagram of the cable detection device provided by the embodiment of the present utility model with the other side end hidden;

[0035] Figure 8 This is a three-dimensional structural schematic diagram of the first detection groove and the second detection groove provided by an embodiment of the present utility model.

[0036] Reference numerals: 100, cable; 1, housing; 11, first detection groove; 12, second detection groove; 13, detection hole; 14, floodlight bead; 101, semi-circular reflecting surface; 2, first detection camera; 102, inclined reflecting surface; 3, second detection camera; 4, coaxial light source; 41, beam splitter; 42, light output assembly; 43, focusing lens; 44, diffusion plate. Detailed implementation manners

[0037] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, etc., the following will be described in detail with reference to the specific embodiments listed and in conjunction with the attached drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0038] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0039] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0040] In the description of the present application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, A and / or B, which means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0041] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or order relationship, etc. between these entities or operations.

[0042] Without further limitation, in this application, the terms "comprising", "including", "having" or other similar expressions are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product that includes the said elements. Thus, a process, method or product that includes a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0043] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0044] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawing. This is only for the convenience of describing the specific embodiments of this application or facilitating the understanding of the reader, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of this application.

[0045] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms "installed", "connected", "joined", "fixed", "set", etc. should be understood in a broad sense. For example, the said "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0046] In view of the defects of the existing cable detection devices described above, the applicant, based on years of rich practical experience and professional knowledge in the design and manufacture of such products, and in combination with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects in the existing technology, making the cable detection device more practical. After continuous research, design, repeated sample production and improvement, the present utility model with practical value has finally been created.

[0047] Please refer to Figures 1 to 8 , an embodiment of the present utility model provides a cable detection device, including:

[0048] A housing 1, provided with a first detection groove 11 for the cable 100 to pass through in suspension, and the bottom surface of the first detection groove 11 is a semi-circular reflecting surface 101; the center line of the semi-circular reflecting surface 101 is higher than the center line of the cable 100 passing through the first detection groove 11, so that both ends of the semi-circular reflecting surface 101 are higher than the center line of the cable 100.

[0049] A first detection camera 2, arranged on the notch side of the first detection groove 11 and directly above the cable 100; the bottom surface image and at least part of the side surface image of the cable 100 are reflected to the first detection camera 2 through the semi-circular reflecting surface 101, and the first detection camera 2 can directly take pictures of the top surface of the cable 100. Optionally, as Figure 2 shown, the center line of the semi-circular reflecting surface 101 is directly above the center line of the cable 100 in the first detection groove 11.

[0050] Specifically, it is obvious and easy to implement that the first detection camera 2 can directly take pictures of the top surface of the cable 100, so it will not be elaborated here; the left part of the curved surface of the semi-circular reflecting surface 101 reflects the left part of the bottom image of the cable 100 to the first detection camera 2, and reflects the side surface image of the left part near the bottom of the cable 100 to the first detection camera 2, that is, the first detection camera 2 can detect at least half of the bottom surface and part of the left side surface of the cable 100 based on this for taking pictures; similarly, the right part of the curved surface of the semi-circular reflecting surface 101 reflects the right part of the bottom image of the cable 100 to the first detection camera 2, and reflects the side surface image of the right part near the bottom of the cable 100 to the first detection camera 2, that is, the first detection camera 2 can detect at least half of the bottom surface and part of the left side surface of the cable 100 based on this for taking pictures. In summary, the first detection camera 2 can take pictures to detect the bottom surface image of the entire bottom part of the cable 100 and part of the side surface image, and combined with the image obtained by taking pictures of the top surface, can effectively detect the 360° outer circumference of the cable 100.

[0051] In summary, in the present application, a semi-circular reflecting surface 101 is ingeniously arranged, and the position of the semi-circular reflecting surface is reasonably set, so that a first detection camera 2 can completely detect the entire circumferential surface of the cable 100. The cable 100 continuously slides relative to the housing 1, thereby completing the surface detection of the entire cable 100.

[0052] Optionally, the housing 1 is further provided with a second detection groove 12 communicating with the first detection groove 11; the extending direction of the second detection groove 12 is consistent with the extending direction of the first detection groove 11. The cross-section of the second detection groove 12 in the direction perpendicular to its extending direction is trapezoidal, and the opposite side groove walls of the second detection groove 12 are inclined reflecting surfaces 102, and the two inclined reflecting surfaces 102 are symmetrically arranged; the cable detection device further includes a second detection camera 3, and the second detection camera 3 is arranged on the notch side of the second detection groove 12 and directly above the cable 100; the images on both sides of the cable 100 are reflected to the second detection camera 3 through the opposite side groove walls of the second detection groove 12.

[0053] Specifically, considering that the shooting angle of the first detection camera 2 for shooting the images on both sides of the cable 100 through the circular reflecting surface 101 is small, and it is easy to have inaccurate detection, the second detection groove 12 and the second detection camera 3 are specially arranged to focus on detecting the two side surfaces of the cable 100, thereby further improving the detection accuracy.

[0054] Optionally, the cable detection device further includes a coaxial light source 4 installed in the housing 1; in addition, the housing 1 also has the function of blocking the irradiation of external stray light onto the cable 100, ensuring that the cable is photographed and detected under the irradiation of the coaxial light source 4, ensuring that the lighting effect of each photograph is basically the same, thereby improving the accuracy of photographing and detecting.

[0055] The coaxial light source 4 includes a beam splitter 41 located on one side of the top of the first detection groove 11 and a light emitting component 42 installed on one side of the beam splitter 41; the light emitted by the light emitting component 42 is directed to the first detection groove 11 through the beam splitter 41. The light emitted by the light emitting component 42 is reflected by the beam splitter and irradiates the cable from top to bottom, and is reflected by the semi-circular reflecting surface 101 to illuminate the bottom side of the cable 100.

[0056] Optionally, a focusing lens 43 is further arranged on the top plate of the housing 1, and the focusing lens 43 is located between the beam splitter 41 and the first detection camera 2. The focusing lens 43 can effectively increase the range of the light, make the image clearer, and improve the detection accuracy of the first detection camera 2 and the second detection camera 3.

[0057] Optionally, the radius of the semi-circular reflecting surface 101 is a, the diameter of the cable 100 is b, and the minimum distance from the center line of the cable 100 to the semi-circular reflecting surface 101 is c; wherein, a ≥ 3b, b ≤ c ≤ 2b, so that the image at the bottom of the cable 100 can be completely photographed and detected by the first detection camera 2 after being reflected by the reflection arc of the semi-circular reflecting surface 101, and it is avoided that the cable 100 is too close to or too far from the semi-circular reflecting surface 101, making the installation position of the first detection camera 2 more appropriate. It should be added that if a is less than 3b, the photographing angle of the first detection camera 2 will be relatively small, resulting in the possibility that the complete bottom image of the cable 100 cannot be detected completely.

[0058] Optionally, the housing 1 forms a detection hole 13 for the cable 100 to pass through, and the detection hole 13 communicates with the first detection groove 11. The cable 100 passes through the detection hole 13 into the first detection groove 11 and the second detection groove 12.

[0059] Optionally, a diffuser plate 44 is further provided between the light-emitting component 42 and the beam splitter 41, thereby improving the uniformity of the illumination.

[0060] Optionally, a diffused light bead 14 is further installed at the bottom of the first detection groove 11; the diffused light bead 14 is located directly below the cable passing through the first detection groove 11, and the width of the light bead is smaller than the width of the cable 100. The diffused light bead 14 can play a further supplementary lighting effect, and due to the blocking of the cable 100 and the limitation of the photographing angle of the first detection camera 2, the first detection camera 2 actually cannot photograph the diffused light bead 14. The supplementary lighting effect of the diffused light bead 1 further improves the lighting effect on the bottom of the cable, making the surface defects of the cable 100 easier to be detected by the first detection camera 2.

[0061] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the essential concept of the present application, using the content recorded in the text and drawings of the specification of the present application, as well as any technical solutions directly or indirectly implementing the above embodiments in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. A cable detection device, characterized in that, Comprising: A housing (1) provided with a first detection groove (11) for the cable (100) to pass through suspendedly, and the bottom surface of the first detection groove (11) is a semi-circular reflecting surface (101); the center line of the semi-circular reflecting surface (101) is higher than the center line of the cable (100) passing through the first detection groove (11). A first detection camera (2) is arranged on the notch side of the first detection groove (11) and directly above the cable (100); the bottom image and at least part of the side image of the cable (100) are reflected to the first detection camera (2) through the semi-circular reflecting surface (101), and the first detection camera (2) can directly take pictures of the top surface of the cable (100).

2. The cable detection device according to claim 1, characterized in that, The housing (1) is further provided with a second detection groove (12) communicating with the first detection groove (11). The extending direction of the second detection groove (12) is consistent with that of the first detection groove (11). The cross-section of the second detection groove (12) perpendicular to its extending direction is trapezoidal, and the opposite side wall surfaces of the second detection groove (12) are inclined reflecting surfaces (102), and the two inclined reflecting surfaces (102) are symmetrically arranged. The cable detection device further includes a second detection camera (3), and the second detection camera (3) is arranged on the notch side of the second detection groove (12) and directly above the cable (100); the images on both sides of the cable (100) are reflected to the second detection camera (3) through the opposite side wall surfaces of the second detection groove (12).

3. The cable detection device according to claim 1, characterized in that, It further includes a coaxial light source (4) installed in the housing (1). The coaxial light source (4) includes a beam splitter (41) located on one side of the top of the first detection groove (11) and a light-emitting component (42) installed on one side of the beam splitter (41); the light emitted by the light-emitting component (42) is directed to the first detection groove (11) through the beam splitter (41).

4. The cable detection device according to claim 3, characterized in that, A lens intensifier (43) is further arranged on the top plate of the housing (1), and the lens intensifier (43) is located between the beam splitter (41) and the first detection camera (2).

5. The cable detection device according to claim 1, wherein, The radius of the semi-circular reflecting surface (101) is a, the diameter of the cable (100) is b, and the minimum distance from the center line of the cable (100) to the semi-circular reflecting surface (101) is c. Wherein, a≥3b, b≤c≤2b.

6. The cable detection device according to claim 1, characterized in that, The housing (1) forms a detection hole (13) for the cable (100) to pass through, and the detection hole (13) communicates with the first detection groove (11).

7. The cable detection device according to claim 3, characterized in that, A diffusion plate (44) is further arranged between the light-emitting component (42) and the beam splitter (41).

8. The cable detection device according to claim 1, wherein A diffused light bead (14) is further installed at the bottom of the first detection groove (11). The diffused light bead (14) is located directly below the cable passing through the first detection groove (11), and the width of the light bead is smaller than the width of the cable (100).

9. The cable detection device according to claim 1, wherein, The center line of the semi-circular reflecting surface (101) is directly above the center line of the cable (100) in the first detection groove (11).

Images