A vehicle-mounted image recognition device for driving training vehicles

Abstract

The present invention relates to the technical field of image recognition, and specifically discloses an in-vehicle image recognition device for a driving training vehicle, including a housing that can be installed outside the vehicle. A housing cover is fixedly installed on the side end of the housing. An inner cavity is provided inside the housing. An image processor is provided in the inner cavity. A lens is provided at the side end of the image processor. A driving assembly is also included. In the present invention, the driving assembly drives the lens to extend out, so as to form a sealed and heat-insulating space inside the housing, limit the condensation range of the condensed water formed when the camera stops working and dissipates heat to the outer surface of the lens, and then cooperate with the switching between two states of the wiping part to clean the outer surface of the lens when the lens retracts, avoid the condensed water directly condensing on the outer wall of the image processor and causing damage to the image processor and its internal components, and clean the condensed water on the outer surface of the lens, avoid the condensed water on the lens surface from further freezing, causing damage and blockage to the lens surface, and affecting the normal operation of the camera.

Description

Technical Field

[0001] The present invention relates to the technical field of image recognition, and particularly to an in-vehicle image recognition device for a driving training vehicle. Background Art

[0002] The in-vehicle image recognition device is one of the key technologies in autonomous driving and intelligent transportation systems, mainly used to detect and recognize the surrounding environment of the vehicle to improve driving safety. Among them, the in-vehicle image recognition device for a driving training vehicle is mainly used to realize the intelligent management of driving training, improve training efficiency, and ensure the authenticity and safety of training. During the driving training process, the image recognition device is often under high load and needs to run for a long time. Therefore, the image recognition device needs to have good heat dissipation performance.

[0003] For example, Chinese Patent No. CN118042255A discloses an in-vehicle image recognition device, including a housing, a camera module, a main board, heat dissipation holes, and heat sinks; a receiving cavity is provided inside the housing, a fixing hole for communicating the receiving cavity with the outside is provided on the side wall of the housing, the camera module is arranged inside the receiving cavity and fixed to the inner wall of the fixing hole, the camera module is used to collect video image data during driving, the main board is arranged on the side of the camera module close to the bottom of the receiving cavity, the main board is communicatively connected to the camera module, several heat dissipation holes are provided on the periphery of the housing to enable the hot air inside the receiving cavity to exchange and communicate with the outside air, and the heat sink is arranged on the outer wall of the housing close to the main board side, and the heat sink is used to conduct heat by closely adhering to the main board; this application solves the heat dissipation problem when the in-vehicle camera works.

[0004] However, when the in-vehicle camera is in a low-temperature and relatively humid season (such as winter) or region, the high temperature generated by the image processor will cause the water vapor in the outside air to condense on the lens of the camera after the camera is used for a long time and then turned off. The condensed water vapor will also freeze on the lens surface in a low-temperature environment, which will not only prevent the camera from normal use, but also may cause pressure on the lens glass surface due to the volume expansion when water freezes, resulting in cracks or breakage. Summary of the Invention

[0005] The purpose of the present invention is to provide an in-vehicle image recognition device for a driving training vehicle to solve at least one of the technical problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An in-vehicle image recognition device for a driving training vehicle, including a housing that can be installed outside the vehicle, a housing cover is fixedly installed on the side end of the housing, an inner cavity is opened inside the housing, an image processor is arranged inside the inner cavity, and a lens is provided at the side end of the image processor.

[0007] It further includes a driving component for driving the image processor to extend out of or retract into the inner compartment;

[0008] It further includes a wiping part which has two states. In state one, the wiping part can clean the outer surface of the lens when the image processor completely retracts into the inner compartment. In state two, the wiping part can exchange heat with the outer wall of the image processor when the image processor completely extends out of the inner compartment.

[0009] Preferably, the wiping part includes an annular groove and a circular groove formed in the outer shell. An elastic ring that can be turned into the circular groove is provided in the annular groove. The elastic ring consists of an outer ring and an inner ring. Both the outer ring and the inner ring have water absorption, and the water absorption of the outer ring is greater than that of the inner ring. A resistance ring is fixedly installed on the inner wall of the outer shell between the annular groove and the circular groove.

[0010] Preferably, the driving component includes a piston plate slidably installed in the inner compartment. An electromagnet is provided on the side wall of the piston plate. A magnetic attraction block that can attract or repel the electromagnet is provided on the inner side wall of the outer shell. A fixed sleeve is fixedly installed on the other side of the piston plate. The image processor is slidably installed in the fixed sleeve, and a spring is provided between the inner side wall of the fixed sleeve and the side wall of the image processor. A high-low groove is formed on the inner wall of the fixed sleeve. The high-low groove is formed by alternately connecting two groups of low inclined grooves and two groups of high inclined grooves in sequence at the head and tail, and the connection line between two inflection points at the connection of the low inclined groove and the high inclined groove is not parallel to the axis of the fixed sleeve. A limit block that can slide in the high-low groove is fixedly installed on the outer wall of the fixed sleeve.

[0011] Preferably, a plurality of exhaust holes are annularly distributed on the outer wall of the shell cover. An air duct groove that can communicate the inner compartment with the exhaust holes is formed on the inner wall of the outer shell. A one-way air outlet valve is provided in the exhaust hole. An air hole is formed on the side wall of the piston plate, and a one-way air outlet valve is also provided in the air hole. A one-way air inlet is further provided on the side wall of the inner compartment.

[0012] Preferably, a plurality of groups of through slant grooves are formed on the side wall of the outer ring.

[0013] Preferably, annular cavities are formed on the inner walls of the annular groove and the circular groove that are tangent to the elastic ring. A ball that can be in point contact with the elastic ring is provided in each of the two annular cavities.

[0014] Preferably, a slot for inserting the outer ring elastic member of the lens is formed on the side wall of the elastic ring close to the lens. A plurality of groups of protrusions are annularly arranged on the outer wall of the fixed sleeve.

[0015] Preferably, a capillary core is provided in the inner ring, and the part of the capillary core extending out of the outer wall of the inner ring is set as a water absorption strip.

[0016] Preferably, a plurality of elastic hoops are annularly arranged on the outer wall of the elastic ring.

[0017] Preferably, both the annular groove and the inner wall of the annular groove can be fitted with the outer wall of the elastic ring, and the distance between the two annular cavities is half of the cross-sectional circumference of the elastic ring.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] First, the present invention drives the lens to extend through the driving component to form a sealed and heat-insulated space inside the housing, limits the condensation range of the condensed water formed when the camera stops working and dissipates heat to the outer surface of the lens, and then cooperates with the switching between the two states of the wiping part to clean the outer surface of the lens when the lens retracts, avoiding the condensed water directly condensing on the outer wall of the image processor and causing damage to the image processor and its internal components, and cleaning the condensed water on the outer surface of the lens, avoiding further icing of the condensed water on the lens surface, causing damage and blockage to the lens surface, and affecting the normal operation of the camera.

[0020] Second, the present invention reciprocally flips the inner ring and the outer ring, so that the inner ring can be separated from the lens after collecting the condensed water, and cooperates with the outer ring to use the condensed water for heat exchange of the image processor, avoiding the overheating of the image processor while cleaning the condensed water on the outer surface of the lens, and preventing the condensed water from icing and damaging the lens.

[0021] Third, the present invention makes the lens be able to be reversely ejected and contact and abut against the inner ring after completely retracting into the inner cavity by the attraction or repulsion between the electromagnet and the magnetic attraction block, and cooperates with the sliding of the limiting block in the high inclined groove and the low inclined groove, and uses the water absorption of the inner ring to absorb the condensed water condensed on the outer surface of the lens, so as to complete the cleaning of the outer surface of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram when the lens of the present invention extends;

[0023] Figure 2 is a three-dimensional structural schematic diagram when the lens of the present invention retracts;

[0024] Figure 3 is an exploded schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 4 is a sectional schematic diagram of the exploded three-dimensional structure of the present invention;

[0026] Figure 5 is a partial sectional schematic diagram of the three-dimensional structure of the housing in the present invention;

[0027] Figure 6 is a partial sectional schematic diagram of the three-dimensional structure of the fixed sleeve in the present invention;

[0028] Figure 7 In the present invention Figure 4 front view;

[0029] Figure 8 In the present invention Figure 2 is a schematic cross-sectional view;

[0030] Figure 9 is a simple side view of the elastic ring in the present invention;

[0031] Figure 10 is a simple developed view of the high and low grooves in the present invention.

[0032] In the figure: 1, outer shell; 2, shell cover; 3, exhaust hole; 4, inner chamber; 5, ring groove; 6, annular groove; 7, piston plate; 8, air hole; 9, fixed sleeve; 10, spring; 11, limit block; 12, lens; 13, image processor; 14, outer ring; 15, inclined groove; 16, low inclined groove; 17, high inclined groove; 18, inner ring; 19, slot; 20, tracheal groove; 21, resistance ring; 22, ball; 23, annular cavity; 24, elastic hoop. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0034] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a vehicle-mounted image recognition device for a driving training vehicle, including an outer shell 1 that can be installed outside the vehicle, a shell cover 2 is fixedly installed on the side end of the outer shell 1, an inner chamber 4 is opened in the outer shell 1, an image processor 13 is provided in the inner chamber 4, and a lens 12 is provided at the side end of the image processor 13;

[0035] It further includes a driving component for driving the image processor 13 to extend out or retract into the inner chamber 4;

[0036] It further includes a wiping part, which has two states. In state one, the wiping part can clean the outer surface of the lens 12 when the image processor 13 completely retracts into the inner chamber 4. In state two, the wiping part can exchange heat with the outer wall of the image processor 13 when the image processor 13 completely extends out of the inner chamber 4.

[0037] The existing in-vehicle image recognition device can only evenly dissipate heat from the internal components of the camera. However, in actual use, when the camera is in operation, the heat dissipated will form a thermal boundary layer on the camera's surface, preventing moisture in the cold air from adhering to the outer wall or lens of the camera. But when the camera stops working and starts to gradually cool down, the moisture in the air will gradually condense on the outer wall or lens of the camera, and the contraction and expansion during freezing or liquefaction will damage the lens or other internal components. Moreover, the condensed frost will also hinder the image acquisition work of the camera. Therefore, the present invention aims to rapidly cool the camera after it stops working and remove the condensed water on the outer wall or lens surface of the camera during the cooling process. The specific implementation is as follows:

[0038] When this device is in use, when the driving component drives the image processor 13 to extend out of the inner chamber 4, that is, when the camera is working properly, the wiping part is in state two and exchanges heat and dissipates heat from the outer wall of the image processor 13. After the camera stops working, the image processor 13 is cooled by the external natural low-temperature environment together with the wiping part. After the temperature of the image processor 13 is the same as the external environment temperature, the driving component drives the image processor 13 to retract into the inner chamber 4. Since both the shell cover 2 and the outer shell 1 are made of heat-insulating materials, after the elastic seal between the outer ring of the lens 12 and the inner wall of the shell cover 2 is hermetically fitted, the condensed water can only condense on the outer surface of the lens 12. For details, see Figure 1 At this time, the wiping part switches to state one and cleans the condensed water that has condensed on the outer surface of the lens 12 during the cooling and heat dissipation process, thus completing the rapid cooling of the image processor 13 and the cleaning of the condensed water on the outer surface of the lens 12.

[0039] In this way, by driving the lens 12 to extend by the driving component, a sealed and heat-insulating space is formed inside the outer shell 1, restricting the condensation range of the condensed water formed during the heat dissipation of the stopped-working camera to the outer surface of the lens 12. Then, in cooperation with the switching of the wiping part between two states, the outer surface of the lens 12 is cleaned when the lens 12 retracts, preventing the condensed water from directly condensing on the outer wall of the image processor 13 and damaging the image processor 13 and its internal components, and cleaning the condensed water on the outer surface of the lens 12 to avoid further freezing of the condensed water on the lens 12 surface, which may damage and block the lens 12 surface and affect the normal operation of the camera.

[0040] Further, the wiping part includes an annular groove 5 and an annular slot 6 opened in the outer shell 1. An elastic ring that can be turned into the annular slot 6 is provided in the annular groove 5. The elastic ring is composed of an outer ring 14 and an inner ring 18. Both the outer ring 14 and the inner ring 18 are water-absorbent, and the water-absorbency of the outer ring 14 is greater than that of the inner ring 18. A resistance ring 21 is fixedly installed on the inner wall of the outer shell 1 between the annular groove 5 and the annular slot 6.

[0041] According to the above embodiments, a specific embodiment of the wiping part is provided. When the driving component drives the lens 12 to extend out, the elastic seal on the outer ring of the lens 12 pushes the elastic ring to start flipping under the action of the resistance ring 21, so that the inner ring 18 flips out to the position of the outer ring 14, and the outer ring 14 flips into the position of the inner ring 18, that is, the inner ring 18 and the outer ring 14 exchange positions with each other. At this time, the elastic ring as a whole flips into the annular groove 6 and wraps around the outer wall of the fixed sleeve 9 to exchange heat and dissipate heat for the image processing in the fixed sleeve 9. When the driving component drives the lens 12 to retract, the elastic seal on the outer ring of the lens 12 drags the elastic ring to start flipping under the action of the resistance ring 21 and flips back to the ring groove 5 until the lens 12 disengages from the elastic ring. When the lens 12 and the image processor 13 are completely retracted into the inner cavity 4 together, at this time, the driving component pushes the lens 12 to pop out in the reverse direction until it contacts and abuts against the inner ring 18. The inner ring 18 absorbs the condensed water on the outer surface of the lens 12 through its own water absorption and transfers the moisture to the outer ring 14 with higher water absorption. The outer ring 14 stores the condensed water by using its own water absorption until the next time the elastic ring flips, and uses the internal moisture to exchange heat and dissipate heat for the outer wall of the fixed sleeve 9, avoiding the image processor 13 from being insensitive or stuck due to excessive internal temperature.

[0042] In this way, through the reciprocating flipping of the inner ring 18 and the outer ring 14, the inner ring 18 can separate from the lens 12 after collecting the condensed water, and cooperate with the outer ring 14 to use the condensed water for heat exchange of the image processor 13, avoiding excessive temperature of the image processor 13 and cleaning the condensed water on the outer surface of the lens 12 at the same time, preventing the condensed water from freezing and damaging the lens 12.

[0043] Further, the driving component includes a piston plate 7 slidably installed in the inner cavity 4. An electromagnet is provided on the side wall of the piston plate 7, and a magnetic attraction block that can attract or repel the electromagnet is provided on the inner side wall of the outer shell 1. The other side of the piston plate 7 is fixedly installed with a fixed sleeve 9. The image processor 13 is slidably installed in the fixed sleeve 9, and a spring 10 is provided between the inner side wall of the fixed sleeve 9 and the side wall of the image processor 13. High-low grooves are formed on the inner wall of the fixed sleeve 9. The high-low grooves are alternately connected end to end in sequence by two groups of low inclined grooves 16 and two groups of high inclined grooves 17, and the connection line between the two inflection points at the connection of the low inclined groove 16 and the high inclined groove 17 is not parallel to the axis of the fixed sleeve 9. A limit block 11 that can slide in the high-low grooves is fixedly installed on the outer wall of the fixed sleeve 9.

[0044] According to the above embodiments, a specific embodiment of the driving component is provided. For details, please refer to Figure 4, when the electromagnet repels the magnetic attraction block, the piston plate 7 moves towards the shell cover 2, driving the image processor 13 to move together. When the elastic seal outside the lens 12 contacts and abuts against the inner ring 18, the lens 12 and the image processor 13 slide together inside the fixed sleeve 9 and compress the spring 10. At this time, the limit block 11 slides from the high inclined groove 17 into the low inclined groove 16, and makes the lens 12 and the image processor 13 rotate 90 degrees together, and wipes the outer surface of the lens 12 by using the frictional force between the lens 12 and the inner ring 18. When the piston plate 7 continues to move until the lens 12 fits into the groove on the inner wall of the shell cover 2, the fixed sleeve 9 continues to compress the spring 10, so that the limit block 11 slides into the high inclined groove 17. At this time, the inner ring 18 and the outer ring 14 are completely flipped, and the camera starts to work. When the camera stops working, the electromagnet attracts the magnetic attraction block, causing the piston plate 7 to reset. When the piston plate 7 pulls the lens 12 to completely retract into the inner chamber 4, the spring 10 loses resistance and starts to reset, pushing out in the reverse direction and making the lens 12 contact and abut against the inner ring 18, and cleaning the outer surface of the lens 12 by using the water absorption of the inner ring 18.

[0045] In this way, through the attraction or repulsion between the electromagnet and the magnetic attraction block, and in cooperation with the sliding of the limit block 11 in the high inclined groove 17 and the low inclined groove 16, the lens 12 can be pushed out in the reverse direction and contact and abut against the inner ring 18 after completely retracting into the inner chamber 4, and the condensed water condensed on the outer surface of the lens 12 is absorbed by using the water absorption of the inner ring 18, completing the cleaning of the outer surface of the lens 12.

[0046] It is worth mentioning that since the connection line between the two inflection points at the connection of the low inclined groove 16 and the high inclined groove 17 is not parallel to the axis of the fixed sleeve 9, specifically refer to Figure 10 , there is a certain distance between the vertical line segments where the upper inflection point and the lower inflection point are located, so that the limit block 11 can only slide in the left direction in the figure, avoiding the reverse sliding of the limit block 11 so that the lens 12 cannot contact and abut against the inner ring 18 after being completely retracted, and making the cleaning effect of the inner ring 18 on the outer surface of the lens 12 fail.

[0047] Furthermore, a plurality of exhaust holes 3 are annularly distributed on the outer wall of the shell cover 2. An air duct groove 20 that can communicate the inner chamber 4 with the exhaust holes 3 is opened on the inner wall of the outer shell 1. A one-way air outlet valve is provided in the exhaust holes 3. An air hole 8 is opened on the side wall of the piston plate 7, and a one-way air outlet valve is also provided in the air hole 8, and a one-way air inlet is further provided on the side wall of the inner chamber 4.

[0048] According to the above embodiments, when the driving component drives the retracted lens 12 to be pushed out in the reverse direction and abut against the inner ring 18, specifically refer to Figure 8, at this time, the air on the right side of the inner chamber 4 enters the left side of the piston plate 7 through the air holes 8, increasing the internal air pressure inside the inner chamber 4 on the left side of the piston plate 7, and slowly squeezing the gas out of the exhaust holes 3 through the tracheal groove 20. Then, the remaining heat inside the image processor 13 can be taken out, keeping the temperature of the image processor 13 as consistent with the external environment as possible, avoiding excessive residual heat inside after the image processor 13 retracts into the inner chamber 4, causing excessive condensation of the condensate water on the surface of the lens 12, exceeding the absorption limit of the elastic ring, making the device fail, and discharging the heat generated during the heat exchange of the outer ring 14 with the image processor 13 and the water vapor evaporated in the outer ring 14 out of the housing 1, completing the heat dissipation of the image processor 13.

[0049] When the driving component drives the lens 12 to extend out of the inner chamber 4, since there is also a one-way air outlet valve in the air hole 8, the gas on the left side of the inner chamber 4 is slowly squeezed out of the exhaust holes 3 through the tracheal groove 20, discharging the excess water vapor in the housing 1 out of the housing 1.

[0050] Furthermore, a plurality of groups of through-slots 15 are provided on the side wall of the outer ring 14.

[0051] According to the above embodiment, a specific embodiment for enabling the elastic ring to rotate is provided. When the gas is slowly squeezed out of the exhaust holes 3 through the tracheal groove 20, it will pass through a plurality of groups of through-slots 15 provided on the side wall of the outer ring 14, causing the outer ring 14 to drive the elastic ring as a whole to start rotating. For details, see Figure 8 , since at this time the driving component drives the retracted lens 12 to push out in the reverse direction and abut against the inner ring 18, the inner ring 18 can rotate along the outer surface of the lens 12 and absorb the condensate water adhering to the outer surface of the lens 12, so as to achieve the purpose of improving the cleaning effect of the condensate water on the outer surface of the lens 12. When the driving component drives the lens 12 to extend out of the inner chamber 4, the rotating ring rotates to wipe the outer surface of the lens 12, cleaning the possible dirt on the outer surface of the lens 12, and preventing the image acquisition device from malfunctioning.

[0052] Furthermore, annular cavities 23 are provided on the inner walls of the annular groove 5 and the annular slot 6 that are tangent to the elastic ring, and ball bearings 22 that can make point contact with the elastic ring are provided in both annular cavities 23.

[0053] According to the above embodiment, a specific embodiment for facilitating the rotation of the elastic ring is provided. When the gas passes through a plurality of groups of through-slots 15 provided on the side wall of the outer ring 14, it will drive the elastic ring as a whole to start rotating. Since annular cavities 23 are provided on the inner walls of the annular groove 5 and the annular slot 6 that are tangent to the elastic ring, and ball bearings 22 that can make point contact with the elastic ring are provided in both annular cavities 23, the friction between the elastic ring and the inner walls of the annular groove 5 and the annular slot 6 is reduced, avoiding the situation where the air flow velocity is too small to drive the elastic ring to rotate, reducing the cleaning effect of the inner ring 18 on the outer surface of the lens 12, and causing the residue of the condensate water.

[0054] Embodiment 1:

[0055] Furthermore, a slot 19 for inserting an elastic member on the outer ring of the lens 12 is provided on the side wall of the elastic ring close to the lens 12, and a plurality of groups of protrusions are arranged annularly on the outer wall of the fixed sleeve 9.

[0056] According to the above embodiment, a specific embodiment for facilitating the flipping of the elastic ring is provided. When the driving component drives the lens 12 to extend out of the inner cavity 4, the elastic sealing member on the outer ring of the lens 12 will first be inserted into the slot 19, so that the side wall of the inner ring 18 is subjected to annular pressure, and cooperates with the resistance ring 21 to cause the elastic ring to start flipping. And when the elastic member flips until the elastic sealing member disengages from the slot 19, the protrusions on the outer wall of the fixed sleeve 9 will increase the friction force between the elastic ring and the fixed sleeve 9, and continue to drive the elastic ring to complete the flipping.

[0057] In this way, through the cooperation between the protrusions on the outer wall of the fixed sleeve 9 and the slot 19, the force on the elastic ring during flipping is annularly distributed, improving the uniformity of the force and making it easier for the elastic ring to complete the flipping.

[0058] Furthermore, a capillary core is provided inside the inner ring 18, and the part of the capillary core extending out of the outer wall of the inner ring 18 is provided as a water-absorbing strip.

[0059] According to the above embodiment, when the driving component drives the retracted lens 12 to be ejected backward and abuts against the inner ring 18, the air flow drives the elastic ring to start rotating. For details, see Figure 8 , at this time, the water-absorbing strip on the outer wall of the inner ring 18 will absorb the condensed water on the outer surface of the lens 12, and introduce it into the outer ring 14 through the capillary core. After the inner ring 18 and the outer ring 14 are swapped, the water in the outer ring 14 can be used to cool and exchange heat with the outer wall of the image processor 13, and the hot air and the water vapor formed by evaporation are discharged from the housing 1 through the slowly flowing air flow.

[0060] Embodiment 2:

[0061] Furthermore, a plurality of elastic hoops 24 are respectively arranged annularly on the outer wall of the elastic ring.

[0062] According to the above embodiment, a second specific embodiment for facilitating the flipping of the elastic ring is provided. Since a plurality of elastic hoops 24 are respectively arranged annularly on the outer wall of the elastic ring. For details, see Figure 9 , when the elastic sealing member on the outer ring of the lens 12 abuts against the elastic ring and drives the elastic ring to flip, the elastic hoops 24 can make the stress distribution of the elastic sealing member on the elastic ring more uniform, which not only facilitates the flipping of the elastic ring, but also enables the elastic ring to maintain stability during the flipping process, avoiding over-flipping or incomplete flipping of the elastic ring due to inconsistent flipping degrees of each part during the flipping of the elastic ring.

[0063] It is worth mentioning that there is no conflict between the implementation manners in the first embodiment and the second embodiment, and they can be used alone or in cooperation with each other.

[0064] Furthermore, the inner walls of both the annular groove 5 and the annular slot 6 can be in close contact with the outer wall of the elastic ring, and the distance between the two annular cavities 23 is half of the cross-sectional perimeter of the elastic ring.

[0065] According to the above implementation manner, since the distance between the two annular cavities 23 is half of the cross-sectional perimeter of the elastic ring, when the elastic ring is pushed by the lens 12 and is flipped under the action of the resistance ring 21, it can just move from the annular groove 5 to the annular slot 6, avoiding excessive or insufficient rotation of the elastic ring during flipping, which may cause the inner ring 18 and the outer ring 14 to fail to exchange positions normally and affect subsequent cleaning or heat dissipation.

[0066] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed according to the existing common technical knowledge without any doubt. At the same time, the connection manners of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0067] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An in-vehicle image recognition device for driving training vehicles, comprising a housing (1) that can be installed outside the vehicle, characterized in that: A housing cover (2) is fixedly installed on the side end of the housing (1). An inner chamber (4) is formed inside the housing (1). An image processor (13) is provided inside the inner chamber (4), and a lens (12) is provided at the side end of the image processor (13). It further includes a driving assembly for driving the image processor (13) to extend out of or retract into the inner chamber (4). It further includes a wiping part which has two states. In state one, the wiping part can clean the outer surface of the lens (12) when the image processor (13) completely retracts into the inner chamber (4). In state two, the wiping part can exchange heat with the outer wall of the image processor (13) when the image processor (13) completely extends out of the inner chamber (4). The wiping part includes an annular groove (5) and an annular slot (6) formed inside the housing (1). An elastic ring capable of flipping into the annular slot (6) is provided in the annular groove (5). The elastic ring is composed of an outer ring (14) and an inner ring (18). Both the outer ring (14) and the inner ring (18) have water absorption, and the water absorption of the outer ring (14) is greater than that of the inner ring (18). A resistance ring (21) is fixedly installed on the inner wall of the housing (1) between the annular groove (5) and the annular slot (6). When the driving assembly drives the lens (12) to extend out, the elastic seal on the outer circle of the lens (12) pushes the elastic ring to start flipping under the action of the resistance ring (21), so that the inner ring (18) flips out to the position of the outer ring (14), and the outer ring (14) flips into the position of the inner ring (18), that is, the inner ring (18) and the outer ring (14) exchange positions with each other.

2. The in-vehicle image recognition device for driving training vehicles according to claim 1, wherein: The driving assembly includes a piston plate (7) slidably installed inside the inner chamber (4). An electromagnet is provided on the side wall of the piston plate (7). A magnetic attraction block capable of attracting or repelling the electromagnet is provided on the inner side wall of the housing (1). A fixed sleeve (9) is fixedly installed on the other side of the piston plate (7). The image processor (13) is slidably installed inside the fixed sleeve (9). A spring (10) is provided between the inner side wall of the fixed sleeve (9) and the side wall of the image processor (13). High-low grooves are formed on the inner wall of the fixed sleeve (9). The high-low grooves are formed by alternately connecting two groups of low inclined grooves (16) and two groups of high inclined grooves (17) in sequence at the head and tail. The connection line between two inflection points at the connection of the low inclined groove (16) and the high inclined groove (17) is not parallel to the axis of the fixed sleeve (9). A limit block (11) capable of sliding inside the high-low grooves is fixedly installed on the outer wall of the fixed sleeve (9).

3. The in-vehicle image recognition device for driving training vehicles according to claim 2, characterized in that: A plurality of exhaust holes (3) are annularly distributed on the outer wall of the housing cover (2). An air duct groove (20) capable of communicating the inner chamber (4) with the exhaust holes (3) is formed on the inner wall of the housing (1). A one-way air outlet valve is provided inside the exhaust holes (3). An air hole (8) is formed on the side wall of the piston plate (7). A one-way air outlet valve is also provided inside the air hole (8). A one-way air inlet is also provided on the side wall of the inner chamber (4).

4. The in-vehicle image recognition device for driving training vehicles according to claim 3, characterized in that: A plurality of groups of through inclined grooves (15) are formed on the side wall of the outer ring (14).

5. The in-vehicle image recognition device for driving training vehicles according to claim 4, characterized in that: Annular cavities (23) are provided on the inner walls of the ring groove (5) and the annular groove (6) tangent to the elastic ring, and balls (22) capable of point contact with the elastic ring are provided in both of the two annular cavities (23).

6. The in-vehicle image recognition device for driving training vehicles according to claim 2, wherein: A slot (19) for inserting an elastic member on the outer ring of the lens (12) is provided on the side wall of the elastic ring close to the lens (12), and multiple groups of protrusions are arranged annularly on the outer wall of the fixed sleeve (9).

7. The in-vehicle image recognition device for driving training vehicles according to claim 1, characterized in that: A capillary core is provided in the inner ring (18), and the part of the capillary core extending out of the outer wall of the inner ring (18) is a water absorption strip.

8. The in-vehicle image recognition device for driving training vehicles according to claim 6, wherein: A plurality of elastic hoops (24) are respectively arranged annularly on the outer wall of the elastic ring.

9. The on-vehicle image recognition device for driving training vehicles according to claim 5, characterized in that: The inner walls of the ring groove (5) and the annular groove (6) can be fitted with the outer wall of the elastic ring, and the distance between the two annular cavities (23) is half of the cross-sectional perimeter of the elastic ring.

Images