Detection device

Abstract

The invention discloses a detection device. The detection device comprises a first shell, a second shell, a controlled object and a controller. The first shell and the second shell are connected in a rotating mode. The interior of the first shell communicates with the interior of the second shell through a wiring channel. The controlled object and the separator are located within the second housing. The controlled object comprises a light source assembly, and the light source assembly emits light for detection and / or sterilization; the cable of the controlled object is positioned on the separator, so that the cable deviates from a light path formed by the light; and at least part of cables of the controlled object pass through the routing channel and are connected with the controller. The cable of the controlled object is located on the separator, so that the cable deviates from the light path formed by the light; and at least part of the cable of the controlled object passes through the wiring channel and is connected with the controller, so that the situation that the cable is wound to block light under the condition that the first shell and the second shell are connected in a rotating manner is avoided, and the high precision of the detection result of the detection device is ensured.

Description

Technical Field

[0001] The present application relates to a detection device for detecting a detection object using light, and in particular to a detection apparatus. Background Art

[0002] A testing device (such as a water quality tester) consists of a light source assembly, a receiver assembly, and an analyzer. The light source assembly emits light, which passes through the object being tested (such as water) and is received by the receiver assembly. The analyzer analyzes the received light, for example, to analyze the COD content in the water.

[0003] Therefore, how to ensure that the light emitted by the light source component is not blocked so that it can be received by the receiving component is a technical problem that must be solved. Summary of the Invention

[0004] The purpose of this application is to disclose a detection device.

[0005] The present application discloses a detection device. The detection device includes a first shell, a second shell, a controlled object, a controller, and a separator. The first shell and the second shell are connected by rotation, and the interior of the first shell and the interior of the second shell are connected by a wiring channel. The controlled object and the separator are located in the second shell. The controlled object includes a light source assembly that emits light for detection and / or sterilization. The cables of the controlled object are located on the separator so that the cables deviate from the optical path formed by the light. At least some of the cables of the controlled object pass through the wiring channel and are connected to the controller.

[0006] In some embodiments, the detection device includes a first cavity for accommodating the light source assembly; a cavity wall of the first cavity is assembled with a window; the partition includes a partition cavity, the partition cavity passes through the partition, and light from the light source assembly passes through the partition cavity and is emitted from the window; the partition includes at least one of the following features:

[0007] a) both ends of the partition are sealed with the light source assembly and the cavity wall of the first cavity respectively;

[0008] b) the separator comprises a separator body having the separator cavity and side portions located at opposite ends of the separator body, the side portions and the separator body forming an I-shape, and the separator body and the side portions forming a wire trough for accommodating the cables; or the separator comprises a separator body having the separator cavity and side portions located at the separator body, the side portions and the separator body forming a T-shape; a wire trough for accommodating the cables is formed between the separator body, the side portions, and the light source assembly;

[0009] c) The inner wall of the separator cavity includes a black borax layer, or the separator is black foam, or the separator is black silicone.

[0010] In some embodiments, the light source assembly includes a light-emitting lamp, a light-emitting lamp fixture, a collimating lens, and a collimating lens holder; the light-emitting lamp and the collimating lens holder are both mounted on the light-emitting lamp fixture, and the light-emitting lamp fixture is mounted on the first housing or the second housing. The collimating lens is mounted on the collimating lens holder to collimate the light emitted by the light-emitting lamp. The detection device includes a cable limiting mechanism; with the light propagation direction of the light source assembly as the front, the cable limiting mechanism is located behind the partition to limit the cable. The cable limiting mechanism is provided on at least one of the light-emitting lamp fixture, the collimating lens holder, and the light-emitting lamp.

[0011] In some embodiments, the detection device includes at least one of the following features:

[0012] a) The cable limiting mechanism is a through hole.

[0013] b) The collimating lens seat is threadedly connected to the light-emitting lamp fixing piece.

[0014] c) The light-emitting lamp fixture and the light-emitting lamp are limited by two light-emitting lamp limiting mechanisms and fixed as a whole by two fixing mechanisms; the line connecting the two fixing mechanisms and the line connecting the two light-emitting lamp limiting mechanisms are diagonals, and the intersection of the diagonals and the light bead of the light-emitting lamp are located on the optical axis of the collimating lens;

[0015] d) The separator is arranged in the circumference of the collimating lens seat and extends out of the collimating lens seat along the propagation direction of the light.

[0016] In some embodiments, the detection device includes a window through which light emitted by the light source assembly passes. The detection device includes a motor assembly, a wiper assembly, and a photoelectric detection assembly. The motor assembly drives the wiper assembly's wiper to oscillate back and forth to clean the window; the photoelectric detection assembly detects the range of the wiper's oscillation. The detection device includes a mutually opaque storage chamber and a first cavity, the light source assembly being located within the first cavity. Of the motor assembly and the photoelectric detection assembly, at least the photoelectric detection assembly is located within the storage chamber. The controlled object also includes the motor of the motor assembly and the photoelectric detection assembly.

[0017] In some embodiments, the detection device includes at least one of the following features: a) a connecting hole is provided in the wall of the accommodating bin, and the wiper assembly and the motor assembly are connected through the connecting hole; the detection device includes a sealing assembly, which is assembled on the wall of the accommodating bin to seal the connecting hole; b) the accommodating bin and the first cavity are arranged side by side in a first direction, and the first direction is perpendicular to the propagation direction of light; c) the photoelectric detection assembly and the motor assembly are both located in the accommodating bin.

[0018] In some embodiments, the detection device includes a housing cover and a housing seal ring. The housing seal ring has an n-shaped cross-section, comprising a base, a first side portion, a second side portion, and a rib. The first and second side portions are located on opposite sides of the base, and the rib is provided on the second side portion. The second housing includes a cavity for accommodating the controlled object. The top surface of the cavity wall is provided with a groove. The second side portion is engaged with the groove, and the first side portion is in contact with the inner surface of the cavity wall. When the housing cover is assembled with the second housing, the rib abuts against the housing cover and faces away from the groove.

[0019] In some embodiments, the first shell includes a first connecting end, and the second shell includes a connecting portion; the wiring channel passes through the first connecting end and the connecting portion, and one of the first connecting end and the connecting portion is provided with a plurality of thread grooves along the length direction of the first connecting end; the detection device includes a radial sealing ring and an end face sealing ring, and the radial sealing ring and the end face sealing ring are located in different thread grooves; after the first connecting end and the connecting portion are tightened, the radial sealing ring and the end face sealing ring are clamped between the first connecting end and the connecting portion.

[0020] In some embodiments, the detection device includes a first cavity for accommodating the light source assembly, a light receiving assembly, and a second cavity for accommodating the light receiving assembly, the light receiving assembly is used to receive the light emitted by the light source assembly, the cavity walls of the first cavity and the second cavity are respectively provided with window mounting holes, the two window mounting holes are opposite, and the axis of each window mounting hole is parallel to the optical axis of the light source assembly; the detection device includes two windows for the light from the light source assembly to pass through, each of the windows includes a window body and a shoulder located circumferentially of the window body; each of the window bodies is assembled with a window mounting hole through a hole axis, and each of the shoulders abuts against the edge of a window mounting hole.

[0021] In some embodiments, the detection device includes a first light receiving component, a second light receiving component, an optical path switching device, and an analyzer; the first housing includes a through reference light channel that is isolated from the exterior of the detection device; light emitted by the light source component passes through the reference light channel; and light emitted by the light source component passes through the object under test. Light from the object under test is transmitted to the first light receiving component via the optical path switching device, and light from the reference light channel is transmitted to the second light receiving component via the optical path switching device. The first and second light receiving components are each connected to the analyzer.

[0022] In some embodiments, at least one of the first light receiving assembly and the second light receiving assembly includes a focusing lens, a focusing lens holder, and a fiber adapter; the focusing lens is assembled to the focusing lens holder; one of the focusing lens holder and the fiber adapter is provided with a mounting shaft, and the other is provided with a mounting hole, the mounting shaft mating with the mounting hole through a hole axis and secured by a fixing structure. And / or, there are two optical path switching devices, one of which is located between the measured object and the first light receiving assembly, and the other is located between the second light receiving assembly and the reference light channel; both optical path switching devices are connected to the controller, and under the control of the controller, the two optical path switching devices are selectively opened or closed.

[0023] In some embodiments, the detection device includes a receiving end reflector, an optical path switching device, a light receiving assembly, and an analyzer. The first housing includes a through reference light channel that is isolated from the outside of the detection device; the light emitted by the light source assembly passes through the reference light channel; and the light emitted by the light source assembly passes through the object to be measured; one of the light from the reference light channel and the light from the object to be measured is transmitted to the receiving end reflector through the optical path switching device and then to the light receiving assembly, and the other of the light from the reference light channel and the light from the object to be measured is transmitted to the light receiving assembly through the optical path switching device. The light receiving assembly is connected to the analyzer.

[0024] In some embodiments, a transmitting end reflector is provided between the light source assembly and the reference light channel, and at least one between the light source assembly and the object to be measured, and at least one of the transmitting end reflector and the receiving end emitter includes a light intensity adjustable module; or, the light path from the light source assembly through the reference tube channel to the light receiving assembly, and at least one of the light path from the light source assembly through the object to be measured to the light receiving assembly includes a light intensity adjustable component.

[0025] For the above-mentioned detection device, a partition is provided, and the cable of the controlled object is located on the partition, so that the cable deviates from the optical path formed by the light emitted by the light source assembly, and at least part of the cable of the controlled object is connected to the controller through the wiring channel. In this way, when the first shell and the second shell are connected by rotation, the cable of the controlled object is prevented from being entangled and located on the optical path of the light source assembly, and will not block the light (for example, in the embodiment of the present application, the cable is prevented from being entangled and blocking the collimating lens), thereby ensuring the high accuracy of the detection result of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional diagram of a detection device of the present application;

[0027] Figure 2 This is an exploded view of a detection device of the present application. Figure 2 A portion of the third shell is cut off;

[0028] Figure 3 is a schematic diagram of a detection device of the present application, wherein the first housing, the vibrating member, the window, the elastic member and the window cover are in a disassembled state;

[0029] Figure 4 is a schematic diagram of the window, window cover, elastic member and vibrating member of the present application in a disassembled state;

[0030] Figure 5 is an exploded view of the light source assembly of the present application;

[0031] Figure 6 yes Figure 1 A side view of the detection device shown;

[0032] Figure 7 It is along Figure 6 Cross-sectional view along line AA;

[0033] Figure 8 It is along Figure 7 Schematic diagram on the left side of BB line;

[0034] Figure 9 yes Figure 8 Enlarged view of part A;

[0035] Figure 10 It is along Figure 6 Cross-sectional view of CC line;

[0036] Figure 11 It is along Figure 10 Schematic diagram on the left side of DD line;

[0037] Figure 12 yes Figure 11 Enlarged view of part B;

[0038] Figure 13 is a perspective view of the first shell of the present application;

[0039] Figure 14 It is a schematic diagram of the motor assembly, photoelectric detection assembly and wiper assembly of the present application assembled together;

[0040] Figure 15 yes Figure 14 Enlarged view of part C in the middle;

[0041] Figure 16 This is an exploded view of the second housing, housing upper cover, and housing sealing ring of the present application;

[0042] Figure 17 is a cross-sectional view of a separator of the present application;

[0043] Figure 18 This is a schematic diagram of the assembly of another separator and light source assembly of the present application;

[0044] Figure 19 is a schematic diagram of another detection device of the present application;

[0045] Figure 20 It is along Figure 6 Cross-sectional view along line EE;

[0046] Figure 21 It is a schematic diagram of the focusing lens, focusing lens seat and optical fiber adapter seat of the first optical receiving assembly or the second optical receiving assembly of the present application in a disassembled state;

[0047] Figure 22 This is a schematic diagram of the optical path of another detection device of the present application. DETAILED DESCRIPTION

[0048] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0049] If there are terms involving directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for descriptive convenience and should not be understood as indicating or implying relative importance.

[0050] See also Figure 1 、 Figure 2 、 Figures 6 to 8 、 Figure 10 、 Figure 11 as well as Figure 20 The present application discloses a detection device. The detection device includes a first housing 301, a second housing 101, a light source assembly 2, a light receiving assembly (including a first light receiving assembly 61 and a second light receiving assembly 62 in this application), a controlled object (including the light source assembly 2, etc.), a controller, and an analyzer 7. The first housing 301 and the second housing 101 are connected by rotation. Figure 7 、 Figure 8 、 Figure 10 、 Figure 11 and Figure 20 , the detection device includes a first cavity 11. Figure 2 After the connecting portion 1011 of the second shell 101 is connected to the first connecting end 3012 of the first shell 301, the first cavity 11 is formed. Of course, the structure of the first cavity 11 is not limited to this. Figure 13 , the first shell 301 is provided with a wiring channel 3015, and the wiring channel 3015 connects the first cavity 11 and the outside of the first shell 301. One function of the wiring channel 3015 is to connect the interior of the first shell 301 with the interior of the second shell 101, so as to lead out the cables of at least part of the controlled objects in the second shell 101. In some embodiments, the cables of at least part of the controlled objects in the second shell 101 (in the first cavity 11) are led out, and there is no limit to where they are led out, for example, they are led out to the outside of the first shell 301. According to the function of the wiring channel 3015, there is no limit to how the wiring channel 3015 is constructed. For example, in a variant embodiment, the connecting portion 1011 protrudes toward the first shell 301, and the protruding portion is connected to the first connecting end 3012. The wiring channel 3015 passes through the protruding portion and the first connecting end 3012. That is to say, with reference to Figure 2 , the connection portion 1011 changes from not protruding from the first shell 301 to protruding from the first shell 301.

[0051] The light source component 2 is located in the first cavity 11. The light source component 2 emits light for detection. In this case, the detection device includes the light receiving component. The light source component 2 can also emit light that is used for both sterilization (such as ultraviolet light with a wavelength range of 190mm-900nm) and detection, or emit light only for sterilization. In this case, because the light of the light source component is not used for detection, the detection device may not include a light receiving component. The light receiving component receives the light emitted by the light source component 2. In some embodiments, the light receiving component includes a first light receiving component 61 and a second light receiving component 62. In some other detection devices, there may be only one light receiving component. See Figure 13 , the first shell 301 also includes a through reference light channel 131. The light path of the light from the light source component 2 passing through the object to be measured to the first light receiving component 61 is called the detection light path, and the light path of the light from the light source component 2 passing through the reference light channel 131 to the second light receiving component 62 is called the reference light path. Correspondingly, the detection device includes an optical path switching device 5 corresponding to the reference light path and the detection light path. The light from the light source component 2 reaches the first light receiving component 61 or the second light receiving component 62 through the optical path switching device 5. The analyzer 7 receives the light from the light receiving component to obtain a detection result. In some embodiments, the analyzer 7 subtracts the detection result of the detection light path from the detection result of the reference light path to obtain a detection result. The analyzer 7 is not limited. For example, the analyzer 7 is a spectrometer. In other embodiments, the detection device may also have only a detection light path.

[0052] See also Figure 3 、 Figure 4 and Figure 9, the window 302 is for light to pass through, and is assembled to the first shell 301 through the elastic member 303. The purpose of assembling through the elastic member 303 is to make the window 302 a flexible unit relative to the first shell 301. Therefore, the structure of the elastic member 303 is not limited to a sealing ring, as long as it can play this role. The window 302 is assembled on the window mounting hole 3010 of the first shell 301 in this application. The detection device includes a vibrator 304. The vibrator 304 is arranged in the central area 3020 of the window 302. The central area refers to a part of the area around the center of the window 302. For example, the central area can be a circular area with a certain radius with the center of the window 302 as the center. The vibrator 304 can be set in the central area 3020 by pasting or the like. The vibrating member 304 is separate from the first housing 301 and the elastic member 303. This separation allows the vibrating member 304 to be an independent component. The first housing 301 and the elastic member 303 do not affect the vibration of the vibrating member 304, for example, they do not reduce the frequency of the vibrating member 304. The controller (not shown) is connected to the vibrating member 304 to control the vibration of the vibrating member 304. The vibrating member 304 drives the window 302 to rotate.

[0053] As described above, since the window 302 is assembled to the first shell through the elastic member 303, the vibration member 304 is arranged in the central area of the window 302, separated from the first shell and the elastic member 303. In this way, the elastic member 303 makes the window 302 a flexible unit relative to the first shell 301, and the controller controls the vibration member 304 to vibrate. The vibration of the vibration member 304 drives the window 302 to vibrate, and then, the window 302 is decontaminated by vibration, etc., which can effectively clean the window 302 and ultimately ensure the detection accuracy of the detection device.

[0054] Based on the above-mentioned function of the vibrating element 304 , the structure of the vibrating element 304 is not limited as long as it can make the window 302 vibrate, for example, a piezoelectric piece, an electromagnetic vibrator, a motor eccentric wheel, a pneumatic or hydraulic vibrator, and a vibrating element made of magnetostrictive material, etc.

[0055] In the embodiment of the present application, since light detection is used, there are a light emitting end and a light receiving end, therefore, see Figure 3The detection device has two vibrating members 304, two elastic members 303 and two windows 302. In this way, each window 302 (one corresponding to the transmitting end and the other corresponding to the receiving end) is assembled to the first shell 301 through an elastic member 303. Each window 302 is connected to a vibrating member 304. In other words, both the window 302 at the transmitting end and the window 302 at the receiving end can be cleaned. In other embodiments, either the window 302 at the transmitting end or the window 302 at the receiving end can be cleaned. In addition, Figure 3 In the figure, one of the windows 302 is for the light emitted by the light source component 2 to pass through. After the light passes through the object to be measured, it is received by the light receiving component through another window 302. Therefore, based on the function of the vibrating member 304 to clean the window 302 described later, the window 302 is not limited to a window that plays such a role. For example, it can be a window for consumers to see the internal structure of the detection device, etc.

[0056] See also Figure 9 and Figure 4 The elastic member 303 wraps around the edge 3021 of the window 302. In some embodiments, the cross-section of the window 302 is T-shaped, and the shoulder of the window 302 includes the edge 3021. After the elastic member 303 wraps around the edge 3021 of the window 302, a wrapping boundary 3030 is formed. The area of the central region 3020 is smaller than the area enclosed by the wrapping boundary 3030.

[0057] As set up above, the area of the central area 3020 is smaller than the area of the area enclosed by the wrapping boundary 3030. Combined with the separation of the vibrating member 304 from the first shell 301 and the elastic member 303, it can be ensured that the vibrating member 304 is separated from the elastic member 303, and the vibration of the vibrating member 304 will not be reduced due to the obstruction of the elastic member 303 and the first shell 301, thereby ensuring that the vibrating member has a higher vibration frequency. Accordingly, the cleaning effect on the window 302 is good.

[0058] See also Figure 4 and Figure 9, the elastic member 303 includes a window mounting groove, and the inner wall of the window mounting groove is provided with an inner rib 3031. The edge of the window 302 is located in the window mounting groove to achieve the wrapping. The edge of the window 302 abuts against the inner rib 3031. In other embodiments, the inner rib 3031 may be provided on the edge of the window 302, and in this case, the inner rib 3031 abuts against the inner wall of the window mounting groove. The first shell 301 includes an elastic member mounting groove. There is no limit to how the elastic member mounting groove is constructed. In some embodiments, after the window cover 305 is assembled with the first shell 301, it forms the elastic member mounting groove. The outer surface of the elastic member 303 is provided with an outer rib 3032. The elastic member 303 is located in the elastic member mounting groove, and the outer rib 3032 abuts against the groove wall of the elastic member mounting groove, see Figure 9 The outer rib 3032 on one side of the elastic member 303 abuts against the window cover 305 (which serves as the wall of one side of the elastic member installation slot), and the outer rib 3032 on the other side abuts against the first housing 301 (which serves as the wall of the other side of the elastic member installation slot). In other embodiments, the outer rib may be provided on the wall of the elastic member installation slot. When the elastic member is located in the elastic member installation slot, the outer surface of the elastic member 303 abuts against the outer rib of the wall of the elastic member installation slot.

[0059] As described above, since the outer rib 3032 of the elastic member 303 abuts the wall of the elastic member mounting slot, and the inner rib 3031 abuts the edge of the window 302, the elastic member 303 achieves good sealing performance, preventing water from entering the detection device from outside. Furthermore, this abutment reduces the contact area between the window 21 and the elastic member 303, as well as the contact area between the elastic member 303 and the wall of the elastic member mounting slot. This improves the flexibility of the window 302 as a flexible unit and reduces the vibration restriction on the window 302. Furthermore, since the vibrating member 304 is located in the central region 3020 of the window 302, this arrangement improves the vibration of the window 302 and ensures a cleaner cleaning. Of course, in some embodiments, only one of the inner and outer ribs can be provided (still maintaining the aforementioned beneficial effects), i.e., a rib is provided only between the elastic member 303 and the elastic member mounting slot, or between the elastic member 303 and the window 302, to reduce the contact area.

[0060] See also Figure 3 、 Figure 4 and Figure 9 The vibrating element 304 includes a piezoelectric sheet. The piezoelectric sheet is cylindrical, but the shape of the piezoelectric sheet is not limited thereto. The axis of the piezoelectric sheet is perpendicular to the window.

[0061] As described above, the vibrating element 304 comprises a piezoelectric disc, which has a simpler structure. The piezoelectric disc is cylindrical, and its axis is perpendicular to the window 302, causing the window 302 to vibrate back and forth in the axial direction of the piezoelectric disc, resulting in a better cleaning effect. In the case of a cylindrical piezoelectric disc, its shape matches the window 302, resulting in high dimensional efficiency and facilitating a smaller piezoelectric disc. For example, if the piezoelectric disc is square, the window 302 is equivalent to the inscribed circle of the piezoelectric disc, resulting in a larger piezoelectric disc.

[0062] The controlled object is located in the second shell 101 (in the first cavity 11). The controlled object includes the light source assembly 2, the motor 401 and the vibrator 304 of the motor assembly, and may also include a photoelectric detection assembly 403. Of course, the controlled object is not limited to this, and any object controlled by the controller can be called a controlled object. The cables of the controlled object include the cable 206 of the light source assembly 2, the cable of the motor 401 of the motor assembly, the cable of the photoelectric detection assembly 403 and the cable of the vibrator 304. In the case where the detection device does not include any one or more of the motor assembly, the photoelectric detection assembly and the vibrator, the cables of the controlled object correspondingly do not include any one or more of the cables. At least some of the cables of the controlled objects pass through the wiring channel 3015 and are connected to the controller. That is to say, the cables of the controlled objects passing through the wiring channel 3015 may be cables of all controlled objects passing through the wiring channel 3015, or cables of some controlled objects passing through the wiring channel 3015. For example, in the aforementioned embodiment, the cables 206 of the light source assembly 2 and the cables of the motor may pass through the wiring channel 3015, while the cables of other controlled objects will not pass through the wiring channel 3015. For another example, only the cables 206 of the light source assembly 2 pass through the wiring channel 3015, while the cables of other controlled objects are connected to the controller through other means. In either case, as long as the partition prevents the cables of the controlled objects from blocking the light emitted by the light source assembly 2, it will be sufficient.

[0063] See also Figure 11 The detection device further includes a separator 2025. The separator 2025 is located within the first cavity 11. After the separator 2025 is installed, the cables of the controlled object are located on the separator 2025, so that the cables of the controlled object deviate from the optical path formed by the light of the light source assembly 2. The structure of the separator 2025 is not limited, as long as it can perform the aforementioned function.

[0064] As described above, by setting a separator 2025, at least part of the cables of the controlled object are located on the separator 2025, so that the cables deviate from the optical path formed by the light, and at least part of the cables of the controlled object are connected to the controller through the wiring channel 3015. This can prevent the cables of the controlled object from being entangled and located on the optical path of the light source assembly 2 when the first shell 301 and the second shell 101 are connected by rotation. As a result, the cables of the controlled object will not block the light (for example, in the embodiment of the present application, the internal twisted wires are prevented from blocking the collimating lens 203), ensuring the high accuracy of the detection results of the detection device. If there is no separator 2025, when the first shell 301 and the second shell 101 are connected by rotation, the cables of the controlled object will be entangled as the first shell 301 rotates (for example, because of the entanglement, the collimating lens 203 is blocked), blocking the light, resulting in low accuracy of the detection results.

[0065] In addition, some features of the detection device are described as follows: the first housing 301 includes a first housing body 3011, a first connection end 3012, and a second connection end 3013. The first connection end 3012, the second connection end 3013, and the first housing body 3011 form a detection space 3014 for accommodating the object to be detected. For example, when the detection device is used to detect water quality, with respect to the detection light path, the detection device is placed in water. The light emitted by the light source assembly 2 passes through the window 302 on one side, through the water in the detection space 3014 (the water being the object to be detected), and then is emitted from the window 302 on the other side toward the light path switching device 5.

[0066] In the above embodiment, the detection device includes a light source assembly 2, a reference light channel 131, an optical path switching device 5, a first light receiving assembly 61, and a second light receiving assembly 62 to form a reference light path and a detection light path. In this way, the light emitted by the same light source assembly 2 is divided into two paths (reference light path and detection light path), and the detection light path and the reference light path are independent of each other. The final result of the detection device is the absolute difference between the detection result obtained from the detection light path and the reference result obtained from the reference light path. Factors affecting the accuracy of the detection result (such as instability of the light source assembly 2, energy attenuation, stray light, etc.) can be eliminated by making the difference. Therefore, the above detection device can improve the accuracy of the detection result. In addition, the reference light channel 131 is isolated from the outside of the detection device. During the process of light from the light source assembly 2 being transmitted to the second light receiving assembly 62 through the reference light channel 131, the light will be confined to the reference light channel 131. On the one hand, it is not affected by external light, and on the other hand, it will not cause factors such as light leakage, and thus will not cause the light energy to decrease. Therefore, the accuracy of the reference result is ensured, and the accuracy of the detection result is further ensured.

[0067] Of course, to prevent the cables of the controlled object from blocking the light from the light source assembly 2, the detection device may not include a reference light path, as long as the object under test can be detected by light. In the case where the light source assembly 2 only emits light for sterilization, the detection device may also use other detection methods to detect the object under test.

[0068] See also Figure 21 , the first light receiving component 61 and the second light receiving component 62 both include a focusing lens 601, a focusing lens seat 603 and a fiber adapter seat 602. In other embodiments, at least one of the first light receiving component 61 and the second light receiving component 62 includes the focusing lens 601, the focusing lens seat 603 and the fiber adapter seat 602. Figure 21 In the embodiment, the two focusing lens seats 603 are combined into one body. In other embodiments, the two focusing lens seats 603 may also be separate structures. The focusing lens 601 is assembled to the focusing lens seat 603, for example, by gluing or the like. One of the focusing lens seat 603 and the fiber optic adapter seat 602 is provided with a mounting shaft 6021, and the other is provided with a mounting hole 6031. The mounting shaft 6021 and the mounting hole 6031 are matched through a hole axis and fixed by a fixing structure. That is, the distance between the fiber optic adapter seat 602 and the focusing lens seat 603 is adjusted by the different depths of the mounting shaft 6021 inserted into the mounting hole 6031. The fixing structure is not limited, as long as it can fix the fiber optic adapter 602 and the focusing lens seat 603 relative to each other. In this application, the fixing structure includes screw holes 6032 and fastening screws provided on the focusing lens seat 603. The three screw holes 6032 are distributed at 120 degrees. After the distance between the fiber optic adapter 602 and the focusing lens seat 603 is adjusted to the required distance, the fastening screws are passed through the screw holes 6032 and tightened to lock the fiber optic adapter 602 and the focusing lens seat 603. Figure 20 The two fiber optic adapters 602 are connected to the analyzer 7 through the Y-shaped optical fiber 604. In addition, the focusing lens 601 is fixed on the focusing lens seat 603. Therefore, by adjusting the distance between the fiber optic adapter 602 and the focusing lens seat 603, that is, adjusting the distance between the focusing lens 601 and the Y-shaped optical fiber 604, the energy of the light outlet of the fiber optic adapter 602 can be increased.

[0069] As described above, by adjusting the distance between the fiber optic adapter 602 and the focusing lens holder 603, and then adjusting the focusing lens 601 to maximize the energy at the light outlet of the fiber optic adapter 602, it is ensured that the energy reaching the analyzer 7 is relatively strong, which is conducive to ensuring high accuracy of the detection results, improving product consistency (each detection device can achieve the highest energy), reducing the high-precision positioning requirements of optical components (because even if there is an error in positioning, the error can be overcome by the aforementioned adjustment), and reducing the difficulty and cost of structural processing. In addition, the fiber optic adapter 602 and the focusing lens holder 603 use a hole-shaft fit to adjust the relative distance. Compared with adjusting the relative distance by using a threaded fit, this does not result in a weakening of the energy reaching the analyzer 7, and thus does not result in low detection accuracy. Because if a threaded rotation fit is used, the optical fiber itself will be entangled during the rotation process, affecting the transmission signal of the optical fiber, causing the energy at the light outlet to enter the analyzer 7 to be significantly weakened, thereby resulting in low detection accuracy.

[0070] See also Figure 7 、 Figure 8 and Figure 10 There are two optical path switching devices 5, which are respectively opposite to the first light receiving component 61 and the reference light channel 131, that is, one of the optical path switching devices 5 is located between the object to be measured and the first light receiving component 61, and the other optical path switching device 5 is located between the second light receiving component 62 and the reference light channel 131. The optical path switching device 5 is, for example, a photoelectric baffle. Both optical path switching devices 5 are connected to the controller and, under the control of the controller, are selectively opened or closed. In other words, either the optical path switching device 5 corresponding to the reference light path is closed and the optical path switching device 5 corresponding to the detection light path is opened, or the optical path switching device 5 corresponding to the reference light path is opened and the optical path switching device 5 corresponding to the detection light path is closed.

[0071] As described above, since there are two optical path switching devices 5, one of them is selectively turned on or off under the control of the controller. Compared with using only one optical path switching device 5, it is more convenient to control the switching of the optical path and ensure high detection accuracy. If a single optical path switching device 5 is used, it may not be able to completely cut off the optical path, resulting in optical path interference and ultimately low detection accuracy.

[0072] As a variation of the above detection optical path and reference optical path, see Figure 22, the detection device includes a receiving end reflector (for example, a first receiving end reflector 91 and a second receiving end reflector 92), an optical path switching device 5, a light receiving component 6 and an analyzer 7, and in this embodiment, there is only one light receiving component 6. The first shell includes a through reference light channel 131. The reference light channel 131 is isolated from the outside of the detection device. The light emitted by the light source component 2 passes through the reference light channel 131, and the light emitted by the light source component 2 passes through the object to be measured, that is, Figure 22 As shown, the light passes through the detection space 3014. Figure 22 In the embodiment, the receiving end reflector is correspondingly arranged between the light receiving component 6 and the reference light channel 131. The difference between this embodiment and the above embodiment is that: by setting the receiving end reflector, and then cooperating with the optical path switching device 5 to change the propagation direction of the light in one of the detection light path and the reference light path, only one light receiving component 6 can be used. Therefore, in other embodiments, the receiving end reflector can be arranged between the object to be measured and the light receiving component 6 (which can also be understood as Figure 22 (between the detection space 3014 and the light receiving component 6), at this time, the light from the reference light channel 131 is directly emitted to the light receiving component 6, or it can be emitted to the light receiving component 6 through the reflection component. Based on the above situation, one of the light from the reference light channel 131 and the light from the object to be measured is transmitted to the receiving end reflector through the optical path switching device 5, and is transmitted to the light receiving component 6, and the other of the light from the reference light channel 131 and the light from the object to be measured is transmitted to the light receiving component 6 through the optical path switching device 5. The light receiving component 6 is connected to the analyzer 7. The propagation direction of the light in the reference light path can be seen in Figure 22 As shown by the solid arrow, the propagation direction of the light in the detection light path can be seen in Figure 22 As shown by the dotted arrow.

[0073] As set up above, this embodiment can eliminate a light receiving component by changing the propagation direction of one of the reference light path and the detection light path and combining the light path switching device 5. Furthermore, compared with the aforementioned embodiment, only a straight optical fiber needs to be connected to the analyzer 7, and a Y-shaped optical fiber connection is no longer required. This can eliminate errors caused by differences between individual optical fibers (such as the bifurcation of the Y-shaped optical fiber) and improve the accuracy of the detection results.

[0074] One of the above-mentioned receiving end reflectors (the second receiving end reflector 92) has the function of adjusting the light intensity (achieved by the light intensity adjustable module) and reflecting light. This function can also be set at the transmitting end, that is, a transmitting end reflector (the first transmitting end reflector 93 and the second transmitting end reflector 94) is provided between the light source assembly 2 and the object to be measured, and one of the transmitting end reflectors (the second transmitting end reflector 94) has the function of adjusting the light intensity (achieved by the light intensity adjustable module) and reflecting light. As another embodiment, a transmitting end reflector can be provided between the light source assembly 2 and the reference light channel 131. In summary, at least one of the transmitting end reflector and the receiving end reflector includes a light intensity adjustable module, and it can be that one of them includes a light intensity adjustable module, or it can be that Figure 22 As shown, both include an intensity adjustable module. The receiving end transmitting element is not limited to the two as shown in the figure, but can also be one or more. Similarly, the transmitting end transmitting element is not limited to the two as shown in the figure, but can also be one or more.

[0075] The above-mentioned second receiving end reflector 92 and the second transmitting end reflector 92 respectively include a light intensity adjustable module, that is, the light intensity adjustable module is integrated. Therefore, the light intensity adjustable module is independent. Based on this idea, the above-mentioned embodiment can be changed to: at least one of the optical path (reference optical path) from the light source component 2 through the reference tube channel 131 to the light receiving component 6, and the optical path (detection optical path) from the light source component 2 through the object to be measured to the light receiving component 6 includes a light intensity adjustable component.

[0076] As described above, by providing a light intensity adjustable component, or the transmitting end reflector and the receiving end transmitting component include a light intensity adjustable module, the light intensity is adjusted to ensure that the energy reaching the analyzer 7 is strong, which is conducive to ensuring high accuracy of the detection results.

[0077] The detection device includes a first cavity 11 that accommodates the light source assembly 2. The composition of the first cavity 11 is not limited; for example, it can be formed by the first connection end 3012 of the first housing 301 and the second housing 101. The detection device also includes a second cavity 13. The composition of the second cavity 13 is not limited; for example, the detection device includes a third housing 501. The third housing 501 is connected to the second connection end 3013 of the first housing 301 to form the second cavity 13. The analyzer 7 is located within the second cavity 13. In other embodiments, the controller may also be located within the second cavity 13. The second connection end 3013 of the first housing 301 is connected to the third housing 501. The connection can be achieved by integrally forming the first and third housings 301, or by assembly methods such as threads. The reference light channel 131 extends through the first housing 301 (i.e., through the first housing body 3011). The first connection end 3012 and the second connection end 3013 face each other, each having a window 302 for light to pass through. For more details, see Figure 3 The first connection end 3012 and the second connection end 3013 respectively include a window mounting hole 3010 . The window 302 is mounted in the window mounting hole 3010 .

[0078] See also Figure 8 , the wall of the first cavity 11 is assembled with a window 302. Figure 11 , the partition 2025 includes a partition cavity 20251. The partition cavity 20251 runs through the partition 2025, and the light from the light source assembly 2 passes through the partition cavity 20251 and is emitted from the window 302 (mainly referring to the window 302 on the cavity wall of the first cavity 11). The partition 2025 can be installed on the light source assembly 2 through a mounting structure, and the mounting structure is not limited. For example, when the partition 2025 is installed on the collimating lens holder 204, the two can be installed by combining a flange and bolts, but it is not limited to this. The partition 2025 includes at least one of the following features:

[0079] a) The ends of the separator 2025 are sealed against the walls of the light source assembly 2 and the first cavity 11, respectively, forming a sealed cavity. The sealing method is not limited, as long as it achieves the subsequent function. For example, sealing can be achieved by abutment. The separator cavity 20251 is part of the sealed cavity, so that light from the light source assembly 2 passes through the separator cavity 20251 and is emitted from the window 302.

[0080] As set up above, by forming the closed cavity, the light is confined in the closed cavity and diffuse reflection and the like will not occur. Therefore, the partition 2025 can also make the second light receiving component receive stronger energy, ensuring high accuracy of the detection results.

[0081] b) See Figure 17 The partition 2025 includes a partition body 20252, and the partition body 20252 includes a partition cavity 20251. The light from the light source assembly 2 passes through the partition cavity 20251 and is emitted from the window. The partition 2025 also includes side portions 20253 located at opposite ends of the partition body 20252 to form an I-shape, and the partition body 20252 and the side portions 20253 form a wire trough 20254 for accommodating the cables. The I-shape is not limited to the side portions on each side being an integral plate, and the side portions can also be distributed at intervals in the circumferential direction of the partition body.

[0082] c) See Figure 18 In another embodiment, the separator 2025 includes a side portion 20253 located on the separator body 20252. The side portion 20253 and the separator body 20252 form a T-shape. When the separator 2025 is assembled with the light source assembly 2, a cable trough 20254 for accommodating the cables is formed between the separator body 20252, the side portion 20253, and the light source assembly 2.

[0083] For the two types of partitions 2025 mentioned above, b and c, the two ends of the partition 2025 can be sealedly connected to the light source assembly 2 and the cavity wall of the first cavity 11 respectively as described in a, or one of the side portions 20253 is not sealedly connected to the side wall of the first cavity 11 for installing the window 302, or the other side portion of the partition 2025 is not sealedly connected to the light source assembly 2. In short, as long as the partition 2025 can prevent the cables of the controlled object from blocking light, it will be sufficient.

[0084] As described above, for the separator 2025 described in the above two embodiments b and c, during the relative rotation of the first shell 301 and the second shell 101, the cable (such as Figure 17 and Figure 18 The cables (shown in dashed lines) are wound around the separator body 20252 and located within the cable trough 20254. As a result, the cables are blocked by the side portion 20253 and do not block light. For example, the cables of the controlled object do not block the light emitted by the collimating lens 203 (i.e., the light emitted by the light source assembly 2) and affect imaging. Furthermore, since the cables are housed within the cable trough 20254, it is suitable for use in situations where there are many cables.

[0085] For the separator 2025 of the above three embodiments, the inner wall of the separator cavity 20251 includes a black borax layer, which can be formed by coating, etc. Alternatively, the separator is black foam, or black silicone.

[0086] As described above, since the inner wall of the partition cavity includes a black borax layer, black foam or black silicone, the black borax layer can absorb more light and reduce directional reflection, etc., so that the energy from the light source assembly 2 to the window 302 is stronger.

[0087] See also Figure 5 The detection device includes a cable limiting mechanism 2024. In some embodiments, a cable limiting mechanism 2024 is provided within the first cavity 11, including the following two scenarios. The first scenario is that the cable limiting mechanism 2024 is provided within a component within the first cavity 11. In the present application, the cable limiting mechanism 2024 is provided within the light fixture 202, but this is not limiting. Alternatively, the second housing 101 itself is provided with the cable limiting mechanism 2024. One function of the cable limiting mechanism 2024 is to limit the cable to a specific position. For example, the cable limiting mechanism 2024 may also include a fixing. The fixing secures the cable in a specific position. Of course, the fixing may be omitted and the cable may be located directly within the cable limiting mechanism. With the light propagation direction of the light source assembly 2 as the front, the cable limiting mechanism 2024 is located behind the partition 2025, and the cable is limited in position by the cable limiting mechanism 2024.

[0088] As set up above, the cable limiting mechanism 2024 is located behind the partition 2025 and is used to limit the cable. In this way, after the cable is limited, during the rotation of the first shell 301 and the second shell 101, the cable is limited, which is more conducive to avoiding the cable from being entangled and deviating from the light path of the light source assembly 2. It will not be located on the light path of the light source assembly 2, and will not block the light (for example, in the embodiment of the present application, it prevents the internal twisted wire from blocking the collimating lens 203), thereby ensuring the high accuracy of the detection results.

[0089] See also Figure 5 、 Figure 7 、 Figure 8 、 Figure 10 and Figure 11 The light source assembly 2 includes a light emitting lamp 201, a light emitting lamp fixture 202, a collimating lens 203, and a collimating lens holder 204. The light emitting lamp 201 and the collimating lens holder 204 are both mounted on the light emitting lamp fixture 202. The light emitting lamp fixture 202 is mounted on the first housing 301. In other embodiments, the light emitting lamp fixture 202 can also be mounted on the second housing 101. The collimating lens 203 is mounted on the collimating lens holder 204 to collimate the light emitted by the light emitting lamp 201. Figure 5The cable limiting mechanism 2024 is provided on the light fixture 202. Those skilled in the art will appreciate that the cable limiting mechanism 2024 may be provided on at least one of the light fixture 202, the collimating lens holder 204, and the light fixture 201.

[0090] As described above, the cable limiting mechanism 2024 is arranged on at least one of the light-emitting lamp fixing part 202, the collimating lens seat 204 and the light-emitting lamp 201. Combined with the aforementioned cable limiting mechanism being located behind the partition 2025, there is a certain distance between the cable limiting mechanism 2024 and the collimating lens 203. In addition, the blocking effect of the partition 2025 can better prevent the cable from being entangled and located on the optical path of the collimating lens 203, and will not block the light, thereby ensuring high accuracy of the detection results.

[0091] The light source assembly 2 includes at least one of the following features a, b, c, and d:

[0092] a) Continue to see Figure 5 The cable limiting mechanism is a through-hole. For example, when the cable limiting mechanism is provided on the light fixture 202, the through-hole passes through the light fixture 202 and may or may not be along the light propagation direction of the light source assembly 2. In this case, the through-hole is a notch located on the edge of the light fixture 202, or it may not be a notch. Correspondingly, when the cable limiting mechanism 2024 is provided on the light fixture 201 or the collimating lens holder 204, the through-hole passes through the light fixture 201 or the collimating lens holder 204. When the cable limiting mechanism 2024 is a notch, after the cable is positioned within the notch, it can be secured by a fixing member, or it can be directly secured by the notch without being secured by a fixing member.

[0093] As set up above, since the cable fixing mechanism 2024 is a through hole (for example, a notch located on the edge of the light-emitting lamp fixing part 202), based on the limitation of the through hole, the cable can be made to deviate from the light path of the light source assembly 2, and the cable can be prevented from being located in the light path of the light source assembly 2 due to entanglement during the relative rotation of the first shell 301 and the second shell 101, thereby avoiding blocking the light path (blocking the collimating lens 203), thereby ensuring high accuracy of the detection results.

[0094] b) In some embodiments, the collimating lens holder 204 is threadedly connected to the light fixture 202 .

[0095] As described above, since the collimating lens holder 204 is threadedly connected to the light fixture 202, the distance between the collimating lens holder 204 and the light fixture 202 is adjusted by controlling the screw thread advance, and then the distance between the light fixture 201 and the collimating lens 203 is adjusted to ensure that the energy of the light fixture 201 in the collimating lens 203 reaches the strongest. Ultimately, the accuracy of detection is ensured, the consistency of the product is improved (that is, the energy of each detection device in the collimating lens 203 is the strongest), the requirements for high-precision positioning of optical components are reduced (because even if there is an error in positioning, the error can be overcome by the above-mentioned adjustment), and the difficulty and cost of structural processing are reduced.

[0096] c) In some embodiments, see Figure 5 The light fixture 202 and the light fixture 201 are limited by two light fixture limiting mechanisms. The specific structure of the limiting mechanism is not limited, as long as it can achieve limiting. In some embodiments, each of the light fixture limiting mechanisms includes a limiting hole provided on one of the light fixture 202 and the light fixture 201, and a limiting column 2011 provided on the other. In the embodiment of the present application, the limiting column 2011 is provided on the light fixture 201. The structure of the limiting column is not limited, for example, a limiting pin. During assembly, the limiting column 2011 is inserted into the limiting hole to achieve limiting. The light fixture 201 and the light fixture 202 are fixed as a whole by two fixing mechanisms; the fixing mechanism is not limited, as long as it can fix the two as a whole. In some embodiments, each of the fixing mechanisms includes a first fixing hole 2012 provided on the light fixture 201, a second fixing hole (not shown) provided on the light fixture 202, and a fixing screw 2023. The fixing screw 2023 passes through the second fixing hole and is locked into the first fixing hole 2012, thus fixing the light fixture 202 to the light 201 as a whole. The line connecting the two light-light retaining mechanisms and the two fixing mechanisms may form a square, or a diamond, for example. Regardless of the shape, the line connecting the two fixing mechanisms and the line connecting the two light-light retaining mechanisms are diagonals. The intersection of these diagonals and the lamp bead 2010 of the light 201 are located on the optical axis of the collimating lens 203.

[0097] As set up above, the connecting lines between the limiting mechanism and the fixing mechanism are diagonal lines, and the intersection of the diagonal lines and the lamp bead 2010 of the light-emitting lamp 201 are located on the optical axis of the collimating lens 203. In this way, the collimating lens 203 has a better collimation effect on the light emitted by the light-emitting lamp 201, ultimately ensuring high accuracy of the detection results.

[0098] d) The spacer 2025 is disposed circumferentially around the collimating lens holder 204 and extends out of the collimating lens holder 204 along the light propagation direction. For example, the spacer cavity 20251 of the spacer 2025 is cylindrical. The spacer 2025 can be mounted circumferentially around the collimating lens holder 204 using a mounting structure such as bolts (e.g., a flange combined with bolts).

[0099] As described above, since the collimating lens 203 is installed on the collimating lens seat 204, the separator 2025 is arranged on the circumference of the collimating lens seat 204 and extends out of the collimating lens seat 204 along the propagation direction of the light, which is equivalent to the separator 2025 being located on the circumference of the light path. The separator 2025 can better avoid cable entanglement and is located on the collimating lens 203, and will not block the light, thereby ensuring high accuracy of the detection results.

[0100] In the above embodiment, see Figure 5 The collimating lens holder 204 includes a lens mounting cavity 2041. The collimating lens 203 is secured within the lens mounting cavity 2041 by dispensing glue. The wall of the lens mounting cavity 2041 includes a through-hole 2042. The through-hole 2042 connects the interior of the lens mounting cavity 2041 with the exterior of the collimating lens holder 204. The structure of the through-hole 2042 is not limited and can be a notch as shown, or any other shape that allows glue to flow to the exterior of the collimating lens holder 204.

[0101] As configured above, since the through hole 2042 connects the lens mounting cavity 2041 and the outside of the collimating lens seat 204, when the collimating lens 203 is fixed in the lens mounting cavity 2041 by dispensing glue, excess glue can flow out from the through hole 2042 without contaminating the collimating lens 2043, thereby ensuring the collimation effect.

[0102] In some embodiments, the detection device includes a window 302. The placement of the window 302 is not limited. For example, in some embodiments, the detection device includes a second cavity 13 that accommodates the light receiving components (the first light receiving component 61 and the second light receiving component 62). The walls of each of the first cavity 11 and the second cavity 13 are provided with a window 302. The light source assembly 2 is located within the first cavity 11, and the light emitted by the light source assembly 2 passes through the window 302, allowing the light emitted by the light source assembly 2 to be received by the light receiving component.

[0103] See also Figure 14 、 Figure 15 and Figure 8The detection device includes a motor assembly 40, a wiper assembly 41, and a photoelectric detection assembly 403. The motor assembly 40 (motor 401) drives the wiper 406 of the wiper assembly 41 to swing back and forth to clean the window; the photoelectric detection assembly 403 detects the swing range of the wiper 406 of the wiper assembly 41. More specifically, the motor 401 drives the wiper assembly to swing between a first position and a second position. During the swinging process, the wiper 406 wipes the window 302. In the present application, the wiper 406 interferes with the window 302, so that the wiper 406 wipes the window 302 during the swinging process. The photoelectric detection assembly 403 is used to detect whether the wiper assembly 41 has rotated to the first position and the second position. In the present application, the detection device includes two photoelectric detection assemblies 403 and a shielding member 408. The photoelectric detection assembly 403 is a photoelectric switch. One photoelectric detection assembly 403 corresponds to the first position, and the other photoelectric detection assembly 403 corresponds to the second position. Each of the photoelectric detection components 403 is connected to the controller and includes a signal transmitting component and a signal receiving component. The shielding member 408 is connected to the motor shaft of the motor 401 and rotates synchronously with the wiper assembly 41. In the first position or the second position, the shielding member 408 cuts off the signal transmission path between the signal transmitting component and the signal receiving component. That is, in the first position, the signal sent by the signal transmitting component is blocked by the shielding member 408, and the signal receiving component cannot receive the signal. Thus, the controller determines that the wiper 406 has rotated to the first position. Similarly, when the wiper 406 rotates to the second position, the signal receiving component cannot receive the signal sent by the signal transmitting component. The controller determines that the wiper has rotated to the second position. Thus, the wiper 406 always swings back and forth between the first position and the second position to clean the window 302. Based on the aforementioned function of shielding member 408, the structure of shielding member 408 is not limited. Since the signal transmitting and receiving components of photoelectric detection assembly 403 are vertically opposed, shielding member 408 is Z-shaped, with one end connected to the motor shaft and the other end positioned between the signal transmitting and receiving components, thereby blocking the signal transmission path between the two components. With this arrangement, shielding member 408 and photoelectric detection assembly 403 detect the rotational position of wiper 406, ensuring that wiper 406 constantly reciprocates between the first and second positions, effectively cleaning all areas of window 302.

[0104] See also Figures 7 to 11 and Figure 16The detection device includes a first cavity 11 and a receiving chamber 12, and the receiving chamber 12 and the first cavity 11 are mutually opaque. Mutually opaque means that light from the first cavity 11 will not enter the receiving chamber 12, and light from the receiving chamber 12 will not enter the first cavity 11. How to achieve opacity is not limited, for example, see Figure 8 The first cavity 11 and the accommodating chamber 12 are separated by a partition 110 so as to be light-proof to each other.

[0105] In the embodiment of the present application, the motor assembly 40 is located in the first cavity 11 of the housing of the detection device (which may be a compartment design of the aforementioned accommodating compartment and the first cavity, or may not be a compartment design), and Figure 19 Compared to the embodiment shown, the motor assembly 40 does not shift, and the cable of the motor assembly 40 can be routed through the routing channel, which improves reliability. For example, if the motor assembly 40 is located outside the housing of the detection device, when the detection device is used in water, the motor assembly 40 may be moved by external forces (such as the force of water flow), which will inevitably pull on the cable and reduce reliability.

[0106] Of the motor assembly 40 and the photoelectric detection assembly 403, at least the photoelectric detection assembly 403 is located in the accommodation chamber 12, including the following situations: a) See Figures 7 to 10 , the motor assembly 40 and the photoelectric detection assembly 403 are both located in the accommodation chamber 12; b) only the photoelectric detection assembly 403 is located in the accommodation chamber 12, and the motor assembly 40 is not located in the accommodation chamber 12. The controlled object includes the motor 401 of the motor assembly 40 and the photoelectric detection assembly 403.

[0107] As described above, on the one hand, the mutually opaque first cavity 11 and the receiving chamber 12 prevent the light emitted by the photoelectric detection component 403 from interfering with the light emitted by the light source component 2. The light emitted by the photoelectric detection component 403 does not affect the light emitted by the light source component 2, nor does it affect the subsequent signal collection, thereby ensuring high accuracy of the detection results. On the other hand, at least the photoelectric detection component 403 is located within the receiving chamber 12 as a module, and the light source component 2 and the like are located within the first cavity 11 as another module. As a result, the detection device adopts a modular design, allowing for the separate maintenance of a module without affecting other modules, making replacement and maintenance convenient.

[0108] The detection device includes at least one of the following features a and b:

[0109] a) The wall of the storage compartment 12 is provided with a connecting hole 1012. The detection device includes a sealing assembly assembled to the wall of the storage compartment to seal the connecting hole. The wiper assembly 41 is connected to the motor assembly 40 via the connecting hole 1012. In some embodiments, the wiper assembly 41 and the motor assembly 40 are connected via a transmission shaft 405 that passes through the sealing assembly. More specifically, the wiper assembly 41 includes a wiper 406 and a wiper bracket 407. If the transmission shaft 405 is a separate structure, one end of the transmission shaft 405 is connected to the wiper assembly 41 and the other end is connected to a coupling 404, which is in turn connected to the motor shaft of the motor 401. The wiper 406 is mounted on the wiper bracket 407. For example, the wiper 406 is fixed to the wiper bracket 407 by interference fit within a wiper mounting groove of the wiper bracket 407. The sealing assembly seals the communicating hole 1012. Therefore, the structure of the sealing assembly is not limited as long as it can play this role. Figure 16 In some embodiments, the sealing assembly includes a sealing member 104 (e.g., an oil seal) and a sealing member cover 105 (e.g., an oil seal cover). One method for the sealing assembly to seal the communication hole 1012 is as follows: After the sealing member 104 (oil seal) is inserted into the communication hole 1012, the sealing member cover 105 is then secured thereon. Thus, the sealing assembly is assembled to the second housing 101.

[0110] In the above embodiment, the wall of the storage chamber 12 is provided with a connecting hole 1012, and the wiper assembly 41 and the motor assembly 40 are connected through the connecting hole 1012. Replacing the sealing assembly will not affect the light source assembly 2, etc. For example, the detection device is used to detect water quality, etc., and when working in water, the resistance encountered by the wiper assembly 41 during swinging is greater than when the detection device is not working in water. Therefore, the sealing assembly is easily damaged. By providing the first cavity 11 and the storage chamber 12, which are opaque to each other, on the one hand, when the sealing assembly is replaced, it will not affect the light source assembly 2, etc., and it is convenient to replace parts. On the other hand, for the detection device as a whole, the motor assembly 40 and the light source assembly 2, etc. are located at the same end of the detection device and are heavier. When the detection device is placed underwater, etc., it is more convenient to put the detection device in a vertical state, which is convenient for detection, etc.

[0111] b) See Figure 1 and combined Figure 7 The accommodating chamber 12 and the first cavity 11 are arranged side by side in the first direction R. Figure 1 and Figure 2It can be seen that the port of the storage chamber 12 is connected to the outside of the second shell as the port of the cavity, but it is not limited to this. It can be that the first cavity 11 is connected to the outside. The first direction R is perpendicular to the propagation direction T of the light. As described above, the storage chamber 12 and the first cavity 11 are arranged side by side, so that the motor assembly 40 and the light source assembly 2 and other components can be located at one end of the detection device. On the one hand, when the detection device is in use, the detection device is located in the vertical direction (equivalent to placing Figure 7 and Figure 10 Rotated 90 degrees), so that the two windows are spaced apart in the vertical direction, mud and sand will not be deposited on the upper window of the two windows due to gravity, but will mainly be deposited on the lower window, and the motor assembly 40 can also use a smaller force to drive the wiper of the wiper assembly to clean the mud and sand on the lower window 302 (for example, in some cases, only the lower window needs to be cleaned); on the other hand, it will also make the detection device more beautiful. If they are not arranged side by side, and the motor assembly is placed, for example, Figure 10 At the DD line position in the detection device, the detection device housing will protrude to be used for installing motor components, etc. In this way, the detection device housing is high in the middle and low at both ends, which is not beautiful. If they are not set side by side, the detection device may appear like this during use. Figure 10 In the state shown, in this state, mud and sand are easily deposited between the two windows 302, and the wipers need to clean both windows.

[0112] See also Figure 12 and Figure 16 The detection device includes a housing cover 103 and a housing seal ring 102. The housing seal ring 102 has an n-shaped cross-section and includes a base 1021, a first side portion 1022, a second side portion 1023, and a rib 1024. The first side portion 1022 and the second side portion 1023 are located on opposite sides of the base 1021, and the rib 1024 is provided on the second side portion 1023. A groove is provided on the top surface of the compartment wall of the storage compartment 12. The first side portion 1022 is in contact with the inner surface of the compartment wall 122, and the second side portion 1023 is engaged with the groove. When the housing cover 103 is covering the second housing 101, the rib 1024 is in contact with the housing cover 103 and faces away from the groove. Although the above embodiment describes the storage compartment 12, it is understood by those skilled in the art that the housing cover 103 and the housing sealing ring 102 actually seal the interior of the second housing 101. Therefore, the top surface of the bulkhead in this embodiment refers to the top surface of the cavity wall of the second housing. Figure 2 In an embodiment of the present application, the connection portion 1011 of the cavity of the second shell 101 is connected to the first connection end 3012 to form the first cavity 11.

[0113] As described above, since the second side portion 1023 is stuck in the groove, the first side portion 1022 fits against the inner side of the bulkhead 122 of the accommodating chamber 12, so that the shell sealing ring 102 can be conveniently installed in the accommodating chamber 12 (or the second shell 101). This structure is combined with the case where the shell upper cover 103 is assembled in the second shell 101, and the rib 1024 is tightly pressed against the shell upper cover 103, which has a good sealing effect on the accommodating chamber 12 and effectively prevents water from entering the accommodating chamber 12.

[0114] See also Figure 2 、 Figure 3 and Figure 8 , the first shell 301 includes a first connecting end 3012 and a second connecting end 3013. The first connecting end 3012 and the second connecting end 3013 are provided with a plurality of thread grooves along the length direction of the first shell 301. The first connecting end 3012 is used to connect to the second shell 101. The second connecting end 3013 is used to connect to the third shell 501. The connection method of the two ends is the same, and only the connection between the first connecting end 3012 and the second shell 101 is described as follows: The detection device includes a radial sealing ring 81 and an end face sealing ring 82. There are two radial sealing rings 81. There is one end face sealing ring 82, and the number is not limited to this. The radial sealing ring 81 and the end face sealing ring 82 are located in different thread grooves. The second shell 101 includes a connecting portion 1011. The wiring channel 3015 passes through the first connecting end 3012 and the connecting portion 1011. After the first housing 301 (first connection end 3012) and the second housing 101 (connection portion 1011) are tightened, the radial seal ring 81 and the end seal ring 82 are clamped between the first connection end 3012 of the first housing 301 and the connection portion 1011 of the second housing 101. Of course, the radial seal ring 81 and the end seal ring 82 at the other end are clamped between the second connection end 3013 of the first housing 301 and the connection portion of the third housing 501.

[0115] As described above, by providing the radial sealing ring 81 and the end face sealing ring 82, which are clamped between the first housing 301 and the second housing 101, a good sealing effect is achieved, preventing water from entering the first cavity 11. When the first housing 301 and the third housing 501 are also connected in the above manner, the radial sealing ring 81 and the end face sealing ring 82 prevent water from entering the third housing 501 (also understood as the third cavity 13).

[0116] See also Figure 7 、 Figure 8 、 Figure 10 and Figure 20 and combined Figure 3The detection device includes a second cavity 13 for accommodating the light receiving assembly. The walls of each of the first cavity 11 and the second cavity 13 are provided with a window mounting hole 3010. The two window mounting holes 3010 are directly opposite each other, and the axis of each window mounting hole 3010 is parallel to the optical axis of the light source assembly 2, which can be considered the optical axis of the collimating lens 203.

[0117] The detection device includes two windows 302 for light from the light source assembly 2 to pass through. That is, the light emitted by the light source assembly 2 passes through the window 302 on the wall of the first cavity 11 and then through the window 302 on the wall of the second cavity 13 to be received by the light receiving assembly. Each window 302 includes a window body 3023 and a shoulder 3024 located circumferentially of the window body 3023. The shoulder 3024 includes an edge 3021 wrapped by the elastic member 303. Each window body 3023 is assembled with one of the window mounting holes 3010 through a hole-axis fit. Each shoulder 3024 abuts against the edge of one of the window mounting holes 3010.

[0118] As set up above, since the window body 3023 and the window mounting hole 3010 are assembled through the axis hole, and the axis of each window mounting hole 3010 is parallel to the optical axis of the light source assembly 2, the aforementioned assembly relationship and structure are adopted, which is beneficial for the light emitted by the light source assembly 2 to be vertically emitted toward the window 302, and the assembly through the hole axis also facilitates the assembly of the window 302.

[0119] See also Figure 19 The detection device includes a third cavity 13. In the present application, the detection device includes a third housing 501. When assembled with the first housing 301, the third housing 501 forms a second cavity 13 for accommodating the light receiving assembly. The controller and analyzer 7 may also be located in the second cavity 13. The walls of the first and second cavities are each provided with a window, through which the light emitted by the light source assembly passes.

[0120] The detection device includes a motor 401, a mounting member 409 and a wiper assembly 41. The motor 401 is mounted on the outside of the second shell 101 via the mounting member 409. Based on the function of the mounting member 409, the mounting member 409 is not limited. For example, the mounting member 409 can be a clamp or a connecting bracket, etc., and the motor 401 can be mounted on the second shell 101 or the third shell 501. When the mounting member 409 is a clamp, the shape of the first shell 301 or the shape of the third shell 501 can be cylindrical or not. In other embodiments, the motor 401 can also be mounted on the outside of the third shell 501 via the mounting member 409. Regardless of the motor 401 driving the wiper of the wiper assembly 41 to clean the window. How the wiper cleans the window can be referred to the above embodiment, because only the installation method of the motor is different. At this time, the cable of the controlled object may include the cable of the motor 401 or may not include the cable of the motor 401. That is to say, the cable of the motor 401 can pass through the wiring channel or through the wiring channel.

[0121] As described above, by installing the motor 401 in the third housing 501 or the second housing 101 , the structure of the detection device is more flexible, and the motor 401 can be purchased externally, which facilitates the design of the detection device.

[0122] Some other features of the detection device are described as follows:

[0123] See also Figure 1 、 Figure 2 、 Figure 7 and Figure 8 The detection device includes a protective screen 8, which is connected to the first housing 301, for example, the protective screen 8 is fixed to the first housing 301 by screws, and covers the components of the motor assembly outside the first housing and the wiper assembly 41.

[0124] When the detection device is used to detect water quality underwater, the underwater environment is complex. If large algae or plankton are encountered underwater and entangled with the wiper 406, or if large stones or mud and sand interfere with the wiper assembly 41, the wiper assembly cannot be started, causing the wiper 406 to fail. As described above, a protective mesh 8 is provided to prevent large algae, stones or plankton from being entangled when the wiper is working and causing the motor to malfunction (for example, the wiper cannot rotate), thereby extending the maintenance cycle of the wiper. The mesh holes on the protective mesh can not only block organisms with a certain range of particle sizes, but also reduce the resistance of the water flow, avoid damage to the wiper 406, and ensure that the wiper 406 has cleaning ability. Based on the function of the protective mesh 8, the diameter of the mesh holes of the protective mesh 8 is not limited, for example, the mesh size is 3mm.

[0125] In other embodiments, the window 302 includes an outer surface of the window that contacts water, and the outer surface of the window is covered with a hydrophobic layer, such as an AF coating.

[0126] As described above, by providing a hydrophobic layer, the hydrophobic layer can weaken the adhesion of early microorganisms or algae on the window 302, play a role in preventing the window 302 from being contaminated, and help keep the window 302 clean.

[0127] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A detection device, characterized in that: The detection device includes a first housing, a second housing, a controlled object, a controller, and a separator, wherein: The first shell and the second shell are connected by rotation, and the interior of the first shell and the interior of the second shell are connected through a wiring channel; The controlled object and the partition are located in the second shell, the controlled object includes a light source assembly, and the light source assembly emits light for detection and / or sterilization. The cables of the controlled object are located on the partition so that the cables deviate from the optical path formed by the light; at least part of the cables of the controlled object pass through the wiring channel and are connected to the controller.

2. The detection device according to claim 1, characterized in that The detection device includes a first cavity for accommodating the light source assembly; a cavity wall of the first cavity is assembled with a window; the partition includes a partition cavity, the partition cavity passes through the partition, and light from the light source assembly passes through the partition cavity and is emitted from the window; the partition includes at least one of the following features: a) both ends of the partition are sealed with the light source assembly and the cavity wall of the first cavity respectively; b) the separator comprises a separator body having the separator cavity and side portions located at opposite ends of the separator body, the side portions and the separator body forming an I-shape, and the separator body and the side portions forming a wire trough for accommodating the cables; or the separator comprises a separator body having the separator cavity and side portions located at the separator body, the side portions and the separator body forming a T-shape; a wire trough for accommodating the cables is formed between the separator body, the side portions, and the light source assembly; c) The inner wall of the separator cavity includes a black borax layer, or the separator is black foam, or the separator is black silicone.

3. The detection device according to claim 1, characterized in that The light source assembly includes a light emitting lamp, a light emitting lamp fixing member, a collimating lens and a collimating lens seat; The light emitting lamp and the collimating lens holder are both mounted on the light emitting lamp fixing member, and the light emitting lamp fixing member is mounted on the first housing or the second housing; The collimating lens is mounted on the collimating lens holder to collimate the light emitted by the light emitting lamp; The detection device includes a cable limiting mechanism; with the light propagation direction of the light source assembly as the front, the cable limiting mechanism is located behind the partition to limit the cable, and the cable limiting mechanism is arranged on at least one of the light-emitting lamp fixing member, the collimating lens seat and the light-emitting lamp.

4. The detection device according to claim 3, characterized in that The detection device includes at least one of the following features: a) The cable limiting mechanism is a through hole; b) the collimating lens holder is threadedly connected to the light-emitting lamp fixing piece; c) the light fixture and the light emitting lamp are limited by two light emitting lamp limiting mechanisms and fixed as a whole by two fixing mechanisms; the connecting line between the two fixing mechanisms and the connecting line between the two light emitting lamp limiting mechanisms are diagonals, and the intersection of the diagonals and the light bead of the light emitting lamp are located on the optical axis of the collimating lens; d) The separator is arranged in the circumference of the collimating lens seat and extends out of the collimating lens seat along the propagation direction of the light.

5. The detection device according to claim 1, characterized in that The detection device includes a window, and the light emitted by the light source assembly passes through the window; The detection device further includes a motor assembly, a wiper assembly, and a photoelectric detection assembly; the motor assembly drives the wiper assembly to swing back and forth to clean the window; the photoelectric detection assembly detects the range of the wiper swing; The detection device includes a mutually opaque accommodation chamber and a first cavity, wherein the light source assembly is located in the first cavity; and among the motor assembly and the photoelectric detection assembly, at least the photoelectric detection assembly is located in the accommodation chamber; The controlled object also includes the motor of the motor assembly and the photoelectric detection assembly.

6. The detection device according to claim 5, characterized in that The detection device includes at least one of the following features: a) a communication hole is provided in the wall of the storage compartment, and the wiper assembly and the motor assembly are connected through the communication hole; the detection device includes a sealing assembly, which is assembled to the wall of the storage compartment to seal the communication hole; b) the accommodating chamber and the first cavity are arranged side by side in a first direction, wherein the first direction is perpendicular to the propagation direction of light; c) The photoelectric detection component and the motor component are both located in the accommodating compartment.

7. The detection device according to claim 1, characterized in that The detection device includes a housing upper cover and a housing sealing ring; the housing sealing ring has an N-shaped cross-section, including a base, a first side portion, a second side portion, and a convex rib; the first side portion and the second side portion are located on opposite sides of the base portion, and the convex rib is provided on the second side portion; The second housing includes a cavity for accommodating the controlled object, a top surface of a cavity wall of the cavity is provided with a groove, the second side portion is clamped in the groove, and the first side portion is in contact with an inner side surface of the cavity wall; When the shell upper cover covers the cavity opening, the convex rib is tightly pressed against the shell upper cover and faces away from the groove.

8. The detection device according to claim 1, characterized in that The first housing includes a first connecting end, and the second housing includes a connecting portion; the wiring channel passes through the first connecting end and the connecting portion, and one of the first connecting end and the connecting portion is provided with a plurality of thread grooves along the length direction of the first connecting end; the detection device includes a radial sealing ring and an end face sealing ring, and the radial sealing ring and the end face sealing ring are located in different thread grooves; after the first connecting end and the connecting portion are tightened, the radial sealing ring and the end face sealing ring are clamped between the first connecting end and the connecting portion; Alternatively, the detection device includes a first cavity for accommodating the light source assembly, a light receiving assembly, and a second cavity for accommodating the light receiving assembly, the light receiving assembly being used to receive light emitted by the light source assembly, and a cavity wall of each of the first cavity and the second cavity is provided with a window mounting hole, the two window mounting holes are directly opposite, and the axis of each window mounting hole is parallel to the optical axis of the light source assembly; The detection device includes two windows for light from the light source assembly to pass through, each of the windows including a window body and a shoulder located circumferentially of the window body; each of the window bodies is assembled with a window mounting hole through a hole axis, and each of the shoulders abuts against the edge of a window mounting hole.

9. The detection device according to claim 1, characterized in that The detection device includes a first light receiving component, a second light receiving component, an optical path switching device and an analyzer; The first housing includes a through reference light channel, and the reference light channel is isolated from the outside of the detection device; The light emitted by the light source assembly passes through the reference light channel; and the light emitted by the light source assembly passes through the object to be measured; The light from the measured object is transmitted to the first light receiving component through the optical path switching device, and the light from the reference light channel is transmitted to the second light receiving component through the optical path switching device, and the first light receiving component and the second light receiving component are respectively connected to the analyzer; At least one of the first light receiving assembly and the second light receiving assembly includes a focusing lens, a focusing lens seat and a fiber adapter seat; The focusing lens is assembled on the focusing lens seat; One of the focusing lens seat and the optical fiber adapter seat is provided with a mounting shaft, and the other is provided with a mounting hole, wherein the mounting shaft is matched with the mounting hole through a hole axis and is fixed by a fixing structure; And / or, there are two optical path switching devices, one of which is located between the object to be measured and the first light receiving component, and the other is located between the second light receiving component and the reference light channel; both optical path switching devices are connected to the controller, and under the control of the controller, the two optical path switching devices are selectively opened or closed.

10. The detection device according to claim 1, characterized in that: The detection device includes a receiving end reflector, an optical path switching device, a light receiving component and an analyzer, wherein: The first housing includes a through reference light channel, and the reference light channel is isolated from the outside of the detection device; The light emitted by the light source assembly passes through the reference light channel; and the light emitted by the light source assembly passes through the object to be measured; One of the light from the reference light channel and the light from the object to be measured is transmitted to the receiving end reflector through the optical path switching device and then transmitted to the light receiving component, and the other of the light from the reference light channel and the light from the object to be measured is transmitted to the light receiving component through the optical path switching device; The light receiving component is connected to the analyzer; A transmitting end reflector is provided between the light source assembly and the reference light channel, and between the light source assembly and the object to be measured, and at least one of the transmitting end reflector and the receiving end reflector includes a light intensity adjustable module; Alternatively, at least one of the optical path from the light source assembly through the reference tube channel to the light receiving assembly and the optical path from the light source assembly through the measured object to the light receiving assembly includes a light intensity adjustable component.

Images