Windscreen wiper applied to caisson camera module
By designing the wiper blades and servo components in the wiper, combined with the fan and nozzles, the problem of cleaning oil and water droplets during photography in the caisson camera module was solved, achieving efficient glass cleaning and imaging effects.
Patent Information
- Application Number
- CN202520345710.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing caisson camera modules cannot effectively remove oil and water droplets when taking pictures, resulting in unsatisfactory imaging effects. Ordinary wiper blades cannot clean the glass properly and are prone to scratching it.
A windshield wiper assembly including a wiper blade, a blade retaining block, a rotating arm, and a servo motor is designed. The servo motor drives the rotating arm to move the blade to wipe the glass, and the fan and nozzle work together to clean the glass, ensuring that the blade is pressed parallel to the glass.
It effectively removes oil, dust, and water droplets from the glass surface, ensuring image quality, improving the cleanliness of the camera module and the lifespan of the glass, and reducing maintenance difficulty and cost.
Smart Images

Figure CN223899278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a windshield wiper used in a caisson camera module in the rail transit industry. Background Technology
[0002] The caisson camera module is installed on the railway track. It uses a high-speed industrial camera to acquire vehicle image information and transmits it to the control system in the control room in real time. The computer analyzes and processes the image information and, through image recognition technology and human-machine collaboration, identifies whether there are any defects, breaks, missing parts or other faults in the train components. It performs fault detection and troubleshooting on the railway and train conditions, thereby achieving the purpose of dynamically detecting train quality, avoiding vehicle accidents, and ensuring the safe operation of the railway.
[0003] Currently, the caisson camera module requires a fan to blow away dust and water droplets from the camera module's glass during the photography process, allowing the camera to inspect and record images of the train's underside. While the fan can remove dust from the camera glass, it cannot remove oil stains, resulting in unsatisfactory image quality. Even in rainy weather, water droplets cannot be dried quickly, leading to poor image quality. Furthermore, using ordinary camera wiper blades to scrape the glass typically employs a sheet metal pressure strip and tension spring structure. This results in large play, limited space for the tension spring, and insufficient friction between the blade and the glass, leading to incomplete scraping and unclear images. Utility Model Content
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a windshield wiper for use in a caisson camera module. This windshield wiper can achieve a better wiping effect, ensure that the camera glass is cleaned, and is not easily scratched, thus ensuring the camera's imaging effect.
[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:
[0006] A wiper for use in a caisson camera module includes a wiper blade, a blade retaining block, a rotating arm, and a servo motor assembly.
[0007] The servo assembly is mounted on the caisson camera module. The rotating arm is connected to the servo assembly via a rotating connector. The rotating arm is also connected to the rubber strip fixing block via a rotating connector. The wiper rubber strip is mounted on the rubber strip fixing block.
[0008] A torsion spring is installed on the rotating connection between the rotating arm and the servo assembly.
[0009] The servo motor assembly drives the rotating arm to rotate, causing the wiper blade to scrape the glass of the caisson camera module.
[0010] Furthermore, the servo assembly includes a servo extension fixing block, a servo disk, and a servo. The servo disk is connected to the servo, and the servo disk is also connected to the servo extension fixing block. The servo extension fixing block is connected to the rotating arm.
[0011] Furthermore, the rotating connector is a flathead screw.
[0012] Furthermore, the adhesive strip fixing block is a long strip structure with a protrusion on its middle part, and the protrusion is connected to the end of the rotating arm.
[0013] Furthermore, the rubber strip fixing block has a rubber strip mounting groove, and the wiper rubber strip is installed on the rubber strip mounting groove of the rubber strip fixing block.
[0014] Furthermore, the rubber strip mounting groove is an I-shaped groove, the wiper rubber strip has a wiping part and a mounting part, the mounting part of the wiper rubber strip has an I-shaped structure, and the wiper rubber strip is assembled onto the rubber strip mounting groove through the mounting part.
[0015] Furthermore, the wiper blade is pressed and fixed to the blade fixing block by a flat-head set screw to prevent the wiper blade from loosening and falling out.
[0016] Furthermore, the glass of the caisson camera module is also equipped with a fan and a nozzle.
[0017] The beneficial effects of this utility model are:
[0018] When using the camera, if the image taken is unclear and it is determined that there may be oil or dust on the glass, the wiper blades in the wiper can be used to wipe the glass surface within the angle range limited by the servo motor to remove oil, dust, water droplets, etc., so as to clean the camera glass and ensure the camera's imaging effect.
[0019] In this invention, one end of the rotating arm is connected to the servo assembly via a rotating connector, and a torsion spring is installed on the rotating connector. The other end of the rotating arm is connected to the rubber strip fixing block via a rotating connector. Thus, the two rotating connectors and the torsion spring cooperate to ensure that the wiper rubber strip is always pressed parallel to the glass, thereby improving the wiping effect.
[0020] Overall, compared with the prior art, this utility model has the following advantages:
[0021] (1) It effectively scrapes the camera glass, improves the cleanliness of the glass, and thus effectively increases the recognition rate of the camera.
[0022] (2) It improves the service life of the glass in the caisson camera module and will not scratch the glass.
[0023] (3) The wiper has a small structure and can be installed and used in a limited box space. It can be used in conjunction with a fan and nozzle to blow away dust and foreign objects, and scrape away dust and foreign objects to achieve the best performance.
[0024] (4) This wiper is better suited to the user's camera module glass cleanliness requirements, which greatly improves the image quality.
[0025] (5) The maintenance difficulty and cost are low, and the wiper blades only need to be replaced every six months or so. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the wiper applied to the caisson camera module of this utility model.
[0027] Figure 2 This is a schematic diagram of the planar structure of the wiper applied to the caisson camera module of this utility model.
[0028] Figure 3 This is a cross-sectional view of the wiper blade of the present invention applied to the caisson camera module.
[0029] Figure 4 This is a schematic diagram of the cooperative structure of the windshield wiper and the caisson camera module of this utility model.
[0030] In the diagram, 1: wiper blade; 2: blade fixing block; 21: protrusion; 3: rotating arm; 4: servo assembly; 41: servo extension fixing block; 42: servo disc; 43: servo; 431: servo mounting body; 432: servo body; 433: flange socket; 434: plug; 5: rotating connector; 6: torsion spring; 7: fan; 8: nozzle; 9: flat head set screw; 10: caisson camera module; 101: glass. Detailed Implementation
[0031] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of this utility model.
[0032] As 1 to Figure 4 The wiper shown is used in a caisson camera module and includes a wiper blade 1, a blade fixing block 2, a rotating arm 3 and a servo assembly 4. The servo assembly 4 drives the rotating arm 3 to rotate, thereby causing the wiper blade 1 to wipe the glass 101 of the caisson camera module 10.
[0033] Specifically, the servo assembly 4 is mounted on the caisson camera module 10. The servo assembly 4 includes a servo extension mounting block 41, a servo disk 42, and a servo 43. The servo 43 includes a servo mounting body 431 and a servo main body 432 mounted within the servo mounting body 431, and also includes a flange socket 433 and a plug 434; the servo disk 42 is connected to the servo 43, and the servo disk 42 is in turn connected to the servo extension mounting block 41. The caisson camera module 10 has a glass 101 corresponding to the internal camera.
[0034] The servo extension fixing block 41 has a U-shaped connecting end, and both ends of the rotating arm 3 are U-shaped structures. One end of the rotating arm 3 is connected to the U-shaped connecting end of the servo extension fixing block 41 via a rotating connector 5. A torsion spring 6 is also installed on the rotating connector 5 between the rotating arm 3 and the servo assembly 4.
[0035] In this embodiment, the rotating connector 5 is a flathead screw that passes through the servo extension fixing block 41 and the rotating arm 3, and a locking nut is installed at its end.
[0036] The adhesive strip fixing block 2 is a long strip structure with a protrusion 21 on its middle part. The protrusion 21 is connected to the other end of the rotating arm 3 through a rotating connector 5. The rotating connector 5 is also a flathead screw, and a locking nut is installed at its end.
[0037] The rubber strip fixing block 2 has a rubber strip mounting groove, which is an I-shaped groove. The wiper rubber strip 1 has a wiping part and a mounting part. The mounting part of the wiper rubber strip 1 has an I-shaped structure, and the wiper rubber strip 1 is assembled onto the rubber strip mounting groove through the mounting part. Furthermore, the wiper rubber strip 1 is pressed and fixed onto the rubber strip fixing block 2 by a flat-head set screw 9, locking and pressing the wiper rubber strip to prevent it from coming off during use.
[0038] The caisson camera module 10 is also equipped with a fan 7 and a nozzle 8 at the glass. The fan 7 can blow away dust on the glass 101, and the nozzle 8 can spray water, which, together with the windshield wipers, can achieve a better glass cleaning effect.
[0039] When using the camera, if the image taken is unclear and it is determined that there may be oil and dust on the glass, the fan 7 can be used to blow away the dust, the nozzle 8 can be used to spray water, and then the wiper blades in the wiper can be used to wipe the glass surface within the angle range limited by the servo motor to remove oil, dust, water droplets, etc., so as to clean the camera glass and ensure the camera imaging effect.
[0040] In this invention, one end of the rotating arm 3 is connected to the servo assembly 4 via a rotating connector 5, and a torsion spring 6 is installed on the rotating connector 5. The other end of the rotating arm 3 is connected to the rubber strip fixing block 2 via a rotating connector 5. Thus, the two rotating connectors 5 and the torsion spring 6 cooperate to ensure that the wiper rubber strip 1 is always pressed parallel to the glass 101, thereby improving the wiping effect.
[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A windshield wiper for use in a caisson camera module, characterized in that: Includes wiper blades, blade mounting blocks, rotating arms, and servo motor components; The servo assembly is mounted on the caisson camera module. The rotating arm is connected to the servo assembly via a rotating connector. The rotating arm is also connected to the rubber strip fixing block via a rotating connector. The wiper rubber strip is mounted on the rubber strip fixing block. A torsion spring is installed on the rotating connection between the rotating arm and the servo assembly. The servo motor assembly drives the rotating arm to rotate, causing the wiper blade to scrape the glass of the caisson camera module.
2. The windshield wiper for a caisson camera module according to claim 1, characterized in that, The servo assembly includes a servo extension and fixing block, a servo disk, and a servo. The servo disk is connected to the servo, and the servo disk is also connected to the servo extension and fixing block. The servo extension and fixing block is connected to the rotating arm.
3. A windshield wiper for a caisson camera module according to claim 1 or 2, characterized in that, The rotating connector is a flathead screwdriver.
4. A windshield wiper for a caisson camera module according to claim 1, characterized in that, The rubber strip fixing block is a long strip structure with a protrusion on its middle part, and the protrusion is connected to the end of the rotating arm.
5. A windshield wiper for a caisson camera module according to claim 1, characterized in that, The rubber strip fixing block has a rubber strip mounting groove, and the wiper rubber strip is installed on the rubber strip mounting groove of the rubber strip fixing block.
6. A windshield wiper for a caisson camera module according to claim 5, characterized in that, The rubber strip mounting groove is an I-shaped groove. The wiper rubber strip has a wiping part and a mounting part. The mounting part of the wiper rubber strip has an I-shaped structure. The wiper rubber strip is assembled onto the rubber strip mounting groove through the mounting part.
7. A windshield wiper for a caisson camera module according to claim 1, characterized in that, The wiper blade is pressed and fixed to the blade fixing block by a flat-head set screw to prevent the wiper blade from loosening and falling out.
8. A windshield wiper for a caisson camera module according to claim 1, characterized in that, The glass of the caisson camera module is also equipped with a fan and a nozzle.