Full-angle detection structure

Abstract

The utility model provides a full-angle detection structure applied to a photoelectric sensor. The full-angle detection structure comprises a transmitting module, a receiving module and a light path adjusting module, the transmitting module comprises a light source and a transmitting lens unit; the receiving module comprises a receiving lens unit; the light path adjusting module can rotate relative to the transmitting module, the maximum rotation stroke is 360 degrees, and the light path adjusting module is movably connected with the transmitting module; at a plurality of moments, sensing light rays are emitted from a light source, sequentially pass through the transmitting lens unit and the light path adjusting module and then are emitted to an object to be measured, and the sensing light rays returned from the surface of the object to be measured are sequentially transmitted to a calculation module of the photoelectric sensor through the light path adjusting module and the receiving lens unit when returning. The full-angle detection structure provided by the utility model can realize balance detection at all angles of 360 degrees, and has strong anti-interference capability.

Description

Technical Field

[0001] The utility model belongs to the field of optoelectronic sensors, and particularly relates to an all-angle detection structure. Background Art

[0002] Due to its non-contact detection and fast response speed, optoelectronic sensors have been widely used in the fields of automatic control, object detection, positioning, and counting. An optoelectronic sensor based on the principle of light reflection usually includes a light source responsible for emitting light, a light receiver for receiving the reflected light, a reflector, and a control circuit. Among them, the light emitted by the light source irradiates the reflector and then is reflected back to the light receiver. However, in this structure of optoelectronic sensor, the emitted light and the reflected light are not isolated from each other, and they are prone to mixing and interfering with each other, further affecting the detection result of the optoelectronic sensor to be incorrect; in addition, the reflector is usually fixedly arranged, resulting in the detection structure of the optoelectronic sensor being restricted by the position of the reflector and unable to realize the scanning of the information of the object to be measured at all angles.

[0003] Based on the above, this application provides a technical solution to solve the above technical problems. Summary of the Utility Model

[0004] In view of the scenario where the internal optical paths of the optoelectronic sensor interfere with each other and are restricted by the position of the reflector in the prior art, the utility model provides an all-angle detection structure, which is applied to an optoelectronic sensor and includes:

[0005] A transmitting module, a receiving module, and an optical path adjustment module;

[0006] The transmitting module includes a light source and a transmitting lens unit, and the receiving module includes a receiving lens unit;

[0007] The optical path adjustment module can rotate relative to the transmitting module, and the maximum rotation stroke is 360°. The optical path adjustment module is movably and hermetically connected to the transmitting module;

[0008] At several moments, the sensing light is emitted from the light source, and sequentially passes through the transmitting lens unit and the optical path adjustment module and then irradiates the object to be measured. When the sensing light returned from the surface of the object to be measured returns, it sequentially passes through the optical path adjustment module and the receiving lens unit and is transmitted to the calculation module of the optoelectronic sensor.

[0009] In a specific embodiment of the utility model, the optical path adjustment module includes a rotating mirror and a rotating cylinder. The rotating mirror is used to reflect the sensing light and the sensing light, and the sensing light is transmitted in the rotating cylinder.

[0010] In a specific embodiment of the utility model, the rotating mirror and the rotating cylinder are fixedly and hermetically connected. When the optical path adjustment module rotates relative to the transmitting module, the rotating mirror and the rotating cylinder rotate together.

[0011] In a specific embodiment of the present utility model, the rotating cylinder is L-shaped, the rotating mirror penetrates through the rotating cylinder, and the angles between the rotating mirror and the inner edges of the two sides of the rotating cylinder are both 135°.

[0012] In a specific embodiment of the present utility model, the length and width of the rotating mirror are both greater than the connection surface between the rotating mirror and the rotating cylinder.

[0013] In a specific embodiment of the present utility model, both the transmitting lens unit and the receiving lens unit are hemispheres, and the central axes of the transmitting lens unit and the receiving lens unit coincide.

[0014] In a specific embodiment of the present utility model, the transmitting lens unit is arranged at the center of the receiving lens unit.

[0015] In a specific embodiment of the present utility model, the rotation axis of the optical path adjustment module coincides with the central axis.

[0016] In a specific embodiment of the present utility model, the transmitting lens unit and the receiving lens unit are rotatably connected to the optical path adjustment module through a connecting part. The connecting part is a hollow multi-stage cylinder. The upper side of the connecting part is rotatably connected to the optical path adjustment module, and the lower side of the connecting part is fixedly connected to the transmitting lens unit.

[0017] In a specific embodiment of the present utility model, a base module is further included. The base module includes a fixed base and a bearing part from bottom to top. The part of the bearing part connected to the receiving lens unit is hollowed out to receive the sensing light. The fixed base includes a light source base and a hollowed-out part. The light source is arranged on the light source base. The size of the light source base corresponds to the size of the transmitting lens unit. The part of the fixed base corresponding to the receiving lens unit is composed of the hollowed-out part and the light source base.

[0018] The present utility model can bring at least one of the following beneficial effects: The present invention provides a full-angle detection structure applied to a photoelectric sensor, including a light source, a transmitting lens unit, a receiving lens unit, and an optical path adjustment module. The optical path adjustment module can rotate relative to the transmitting module, with a maximum rotation stroke of 360°, and is movably and hermetically connected to the transmitting module. By setting the optical path adjustment module, the emitted sensing light and the received sensing light are isolated from each other, preventing the sensing light from being interfered by the sensed light, improving the accuracy of the detection result in the photoelectric sensor. In addition, the optical path adjustment module can rotate one week, preventing the photoelectric sensor from being restricted by the position of the reflector, improving the flexibility of the photoelectric sensor, and expanding the detection range of the photoelectric sensor. Description of the Drawings

[0019] The preferred embodiments will now be described in a clear and understandable manner in conjunction with the accompanying drawings to further illustrate the above-mentioned features, technical features, advantages and their implementation manners.

[0020] Figure 1 It is a three-dimensional cross-sectional schematic diagram of the full-angle detection structure in the embodiment of the present utility model;

[0021] Figure 2(A) is a two-dimensional structural schematic diagram of the full-angle detection structure in the embodiment of the present utility model;

[0022] Figure 2(B) is a two-dimensional structural schematic diagram of the full-angle detection structure after rotating 180° in the embodiment of the present utility model. Specific Embodiments

[0023] The following further details each aspect of the present utility model.

[0024] Unless otherwise defined or described, all professional and scientific terms used herein have the same meaning as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to the described content can be applied to the present utility model.

[0025] The following explains the terms.

[0026] It can be understood that although terms such as "first", "second", etc. can be used herein to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Therefore, the first element can be called the second element without departing from the teachings of the concept of the present utility model.

[0027] In the present utility model, the terms "comprising", "including" or "containing" mean that various components can be applied together in the mixture or composition of the present utility model. Therefore, the term "consisting essentially of..." is included in the terms "comprising", "including" or "containing".

[0028] Unless otherwise clearly specified and defined, the terms "connected", "communicated with", "connected to" of the present utility model should be understood in a broad sense. For example, it can be a fixed connection, or can be connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0029] For example, if an element (or component) is said to be on another element, coupled to another element, or connected to another element, then the said one element may be directly formed on, coupled to, or connected to the said other element, or there may be one or more intermediate elements therebetween. Conversely, if the expressions "directly on...", "directly coupled to...", and "directly connected to..." are used herein, then it means there are no intermediate elements. Other words used to describe the relationship between elements should be interpreted similarly, such as "between..." and "directly between...", "attached" and "directly attached", "adjacent" and "directly adjacent", etc.

[0030] It should be further noted that the terms "front", "rear", "left", "right", "up", and "down" used in the following description refer to the directions in the drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. It can be understood that here, these terms are used to describe the relationship of one element, layer, or region relative to another element, layer, or region as shown in the drawings. Except for the orientations described in the drawings, these terms should also cover other orientations of the device.

[0031] Other aspects of the present utility model will be obvious to those skilled in the art due to the disclosure herein.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will describe the specific embodiments of the present utility model with reference to the accompanying drawings. 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 drawings can be obtained based on these drawings, and other embodiments can be obtained.

[0033] It should also be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application. The diagrams only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, number, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex. For example, the thickness of the elements in the drawings may be exaggerated for clarity.

[0034] Embodiment

[0035] In view of the scenario in the prior art where the internal optical paths of photoelectric sensors interfere with each other and are restricted by the position of the reflector, as Figure 1-2(A) shown, the present utility model provides a full-angle detection structure applied to a photoelectric sensor, including:

[0036] A transmitting module, a receiving module and an optical path adjustment module;

[0037] The transmitting module includes a light source A and a transmitting lens unit 1, and the receiving module includes a receiving lens unit 2;

[0038] The optical path adjustment module can rotate relative to the transmitting module, and the maximum rotation stroke is 360°. The optical path adjustment module is movably and hermetically connected to the transmitting module;

[0039] At several moments, the sensing light L1 is emitted from the light source A, and sequentially passes through the transmitting lens unit 1 and the optical path adjustment module and then shoots towards the object to be measured (not shown in the figure). The sensing lights L2, L3, and L4 returned from the surface of the object to be measured are sequentially transmitted to the calculation module of the photoelectric sensor through the optical path adjustment module and the receiving lens unit when returning.

[0040] In a preferred embodiment of the present invention, the optical path adjustment module includes a rotating mirror 3 and a rotating cylinder 4. The rotating mirror 3 is used to reflect the sensing light and the sensing light. The sensing light is transmitted in the rotating cylinder 4.

[0041] It should be noted that the sensing light L2 in FIG. 2 actually returns from the rear side of the rotating cylinder 4 and does not pass through the inside of the rotating cylinder 4. Similarly, the sensing lights L3 and L4 do not penetrate the rotating cylinder 4 and all pass through the outside of the rotating cylinder 4, and are reflected by the rotating mirror 3 and then enter the receiving lens unit 2.

[0042] It should be understood that the rotating cylinder 4 is made of a completely light-tight material.

[0043] Preferably, the rotating mirror 3 and the rotating cylinder 4 are fixedly and hermetically connected. When the optical path adjustment module rotates relative to the transmitting module, the rotating mirror 3 and the rotating cylinder 4 rotate together. After the optical path adjustment module rotates 180°, a two-dimensional schematic diagram of the full-angle detection structure is shown in FIG. 2(B).

[0044] Specifically, the rotating cylinder 4 is L-shaped, the rotating mirror 3 penetrates the rotating cylinder 4, and the angles between the rotating mirror 3 and the inner edges of the two sides of the rotating cylinder 4 are both 135°.

[0045] As Figure 1 shown, the length and width of the rotating mirror 3 are both larger than the connection surface between the rotating mirror 3 and the rotating cylinder 4. Since Figure 1 is a cross-sectional schematic diagram of the full-angle detection structure, it should be understood that the width of the rotating mirror 3 is also wider than the connection surface between the rotating mirror 3 and the rotating cylinder 4 to reflect all sensing lights within the range.

[0046] In a preferred embodiment of the present invention, both the transmitting lens unit 1 and the receiving lens unit 2 are hemispheres, and the central axes of the transmitting lens unit 1 and the receiving lens unit 2 coincide.

[0047] Preferably, the emission lens unit 1 is embedded in the center of the receiving lens unit 2, and a hole for installing the emission lens unit 1 is provided in the center of the receiving lens unit 2.

[0048] Specifically, the rotation axis of the optical path adjustment module coincides with the central axis.

[0049] In a preferred embodiment, the optimal stroke of the optical path adjustment module is 270°.

[0050] In a preferred embodiment of the present invention, the emission lens unit 1 and the receiving lens unit 2 are rotatably connected to the optical path adjustment module through a connecting part 7. The connecting part 7 is a hollow cylinder with several levels. The upper side of the connecting part 7 is rotatably connected to the optical path adjustment module, and the inner diameter of its upper side is adapted to the outer diameter of the rotating cylinder 4. The lower side of the connecting part 7 is fixedly connected to the emission lens unit 1, and the inner diameter of the lower side is adapted to the emission lens unit 1.

[0051] It should be noted that the connections between the connecting part 7 and the emission lens unit 1, the receiving lens unit 2, and the rotating cylinder 4 are all sealed to prevent the sensing light from leaking out.

[0052] Preferably, it further includes a base module. The base module includes a fixed base 5 and a bearing part 6 from bottom to top. The part of the bearing part 6 connected to the receiving lens unit 2 is hollowed out to receive the sensing light. The fixed base 5 includes a light source base and a hollowed-out part. The light source A is arranged on the light source base, and the size of the light source base corresponds to the size of the emission lens unit 1. The part of the fixed base corresponding to the receiving lens unit is composed of the hollowed-out part and the light source base.

[0053] More preferably, the hollowed-out part further includes a connecting bridge for connecting the light source base and the peripheral fixed base 5.

[0054] In summary, the present invention has obtained the following effects:

[0055] The present invention provides a full-angle detection structure applied to a photoelectric sensor, including a light source, an emission lens unit, a receiving lens unit, and an optical path adjustment module. The optical path adjustment module can rotate relative to the emission module, with a maximum rotation stroke of 360°, and is movably and hermetically connected to the emission module. By setting the optical path adjustment module, the emitted sensing light and the received sensing light are isolated from each other, preventing the sensing light from being interfered by the sensing light, improving the accuracy of the detection result in the photoelectric sensor. In addition, the optical path adjustment module can rotate one week, preventing the photoelectric sensor from being limited by the position of the reflector, improving the flexibility of the photoelectric sensor, and expanding the detection range of the photoelectric sensor.

[0056] Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0057] Those skilled in the art know that in addition to implementing the system provided by the present utility model and its various devices, modules, and units in the form of pure computer-readable program code, it is entirely possible to logically program the method steps so that the system provided by the present utility model and its various devices, modules, and units are implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers, etc., to achieve the same functions. Therefore, the system provided by the present utility model and its various devices, modules, and units can be considered as a hardware component, and the devices, modules, and units included therein for implementing various functions can also be regarded as the structures within the hardware component; it can also be considered that the devices, modules, and units for implementing various functions are both software modules for implementing the method and the structures within the hardware component.

[0058] It should be noted that the above-mentioned embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

[0059] All the documents mentioned in the present utility model are incorporated herein by reference as if each document was individually incorporated by reference. In addition, it should be understood that after reading the above content of the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims

1. A full-angle detection structure, which is applied to a photoelectric sensor, and is characterized in that, Comprising: A transmitting module, a receiving module and an optical path adjustment module; The transmitting module includes a light source and a transmitting lens unit, and the receiving module includes a receiving lens unit; The optical path adjustment module can rotate relative to the transmitting module, with a maximum rotation stroke of 360°, and the optical path adjustment module is movably and hermetically connected to the transmitting module; At several moments, the sensing light is emitted from the light source, and successively passes through the transmitting lens unit and the optical path adjustment module and then shoots towards the object to be measured. When the sensing light reflected from the surface of the object to be measured returns, it successively passes through the optical path adjustment module and the receiving lens unit and is transmitted to the calculation module of the photoelectric sensor.

2. The full-angle detection structure according to claim 1, wherein The optical path adjustment module includes a rotating mirror and a rotating cylinder. The rotating mirror is used to reflect the sensing light and the sensing light. The sensing light is transmitted in the rotating cylinder.

3. The full-angle detection structure according to claim 2, wherein, The rotating mirror is fixedly and hermetically connected to the rotating cylinder. When the optical path adjustment module rotates relative to the transmitting module, the rotating mirror and the rotating cylinder rotate together.

4. The full-angle detection structure according to claim 3, characterized in that The rotating cylinder is L-shaped, the rotating mirror penetrates the rotating cylinder, and the angles between the rotating mirror and the inner edges of the two sides of the rotating cylinder are both 135°.

5. The full-angle detection structure according to claim 4, characterized in that The length and width of the rotating mirror are both larger than the connection surface between the rotating mirror and the rotating cylinder.

6. The all-angle detection structure according to claim 1, wherein Both the transmitting lens unit and the receiving lens unit are hemispheres, and the central axes of the transmitting lens unit and the receiving lens unit coincide.

7. The full-angle detection structure according to claim 6, characterized in that, The transmitting lens unit is arranged at the center of the receiving lens unit.

8. The full-angle detection structure according to claim 6 or 7, characterized in that, The rotation axis of the optical path adjustment module coincides with the central axis.

9. The full-angle detection structure according to claim 1, characterized in that The transmitting lens unit and the receiving lens unit are rotatably connected to the optical path adjustment module through a connecting part. The connecting part is a hollow cylinder with several levels. The upper side of the connecting part is rotatably connected to the optical path adjustment module, and the lower side of the connecting part is fixedly connected to the transmitting lens unit.

10. The all-angle detection structure according to claim 1, characterized in that, It also includes a base module. The base module includes a fixed base and a bearing part from bottom to top. The part of the bearing part connected to the receiving lens unit is hollowed out to receive the sensing light; the fixed base includes a light source base and a hollowed-out part. The light source is arranged on the light source base. The size of the light source base corresponds to the size of the transmitting lens unit. The part of the fixed base corresponding to the receiving lens unit is composed of the hollowed-out part and the light source base.

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