Telescopic anti-freezing device for automobile glass

By designing a retractable antifreeze device with a winding sleeve, a scraping mechanism, and an adsorption mechanism, the problems of inconvenient winding and low cleaning efficiency of the antifreeze cover are solved, achieving convenient storage and automatic cleaning, improving the user experience and the stability of the device.

CN121756865AInactive Publication Date: 2026-03-31王峰林
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-10
Publication Date
2026-03-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing car window antifreeze covers are not easy to roll up and store when not in use, have low cleaning efficiency, are cumbersome to operate manually, and pose a risk of scratches.

Method used

Design a telescopic antifreeze device including a winding sleeve, a scraping mechanism, and an adsorption mechanism. The antifreeze cover is wound up by rotating the handwheel, and the surface impurities are automatically scraped off by the scraping plate. The adsorption mechanism achieves multi-point fixation through suction cups.

Benefits of technology

It enables convenient winding and automatic cleaning of the antifreeze cover, improves its functionality and stability, simplifies the operation process, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of automobile accessories, and particularly discloses a telescopic anti-freezing device for automobile glass. The winding mechanism is arranged in the winding sleeve, and the winding mechanism comprises a mounting plate; according to the anti-freezing cover winding device, through the arrangement of the mounting plate, the rotating hand wheel, the mounting frame and the adjusting plate, when the anti-freezing cover is wound, the winding wheel can be driven to rotate on the rotating seat by rotating the hand wheel, so that the anti-freezing cover can be wound outside the winding wheel, at the moment, the scraping and sweeping plate abuts against the outer portion of the anti-freezing cover, and the anti-freezing cover can be scraped through rotation of the adjusting wheel; according to the anti-freezing device, the position of the adjusting plate can be adjusted on the threaded rod, fine adjustment of the position of the scraping and sweeping plate can be conveniently conducted when the scraping and sweeping plate abuts against the anti-freezing cover, and therefore rain and snow on the surface of the anti-freezing cover can be automatically scraped and swept when the anti-freezing cover is wound through abutting and limiting of the scraping and sweeping plate on the anti-freezing cover, and the use functionality of the anti-freezing device is improved.
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Description

Technical Field

[0001] This invention belongs to the field of automotive supplies technology, specifically relating to a telescopic antifreeze device for automotive glass. Background Technology

[0002] "Automotive windshield antifreeze cover film" is a physical protective cover used to cover the windshield in winter. It is not a "film" that is pasted on the inside of the glass. Its main function is to prevent the glass from frosting, freezing or being covered by snow at night or in low temperatures. By physically isolating it, it prevents the warm and humid air inside the car from contacting the cold glass, thereby reducing the formation of frost and ice from the source.

[0003] Most antifreeze covers currently use flat materials of fixed size (such as Oxford cloth and PE coated cloth), which rely on manual folding or rolling when rolled up. Due to the thickness of the material and the lack of rolling aids at the edges, the storage process is time-consuming and laborious. After rolling, the cover is loose and difficult to secure, often requiring an additional storage bag, which increases the space occupied in the vehicle and management costs. Moreover, the cleaning efficiency before use is low. When the antifreeze cover is removed from the glass surface, its outer surface is often covered with snow, ice, or rainwater. If it is rolled up directly, the rain and snow will be trapped inside the cover, which not only increases the difficulty of cleaning when unfolding it later, but may also accelerate the aging of the cover material due to residual moisture. Currently, users need to manually scrape off the surface rain and snow before rolling it up, which is cumbersome and relies on additional tools. Manual handling is easily affected by stiff hands, which can affect efficiency and even pose a risk of scratching the cover. Summary of the Invention

[0004] The purpose of this invention is to provide a retractable antifreeze device for automotive glass, in order to solve the problems mentioned in the background art, namely that existing automotive glass antifreeze covers cannot be easily rolled up and stored when not in use, and cannot automatically scrape away rain and snow on the surface when rolled up manually.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A retractable antifreeze device for automotive glass, comprising:

[0007] Retracting sleeve;

[0008] A winding mechanism is provided inside a winding sleeve. The winding mechanism includes a mounting plate, a rotating handwheel is provided at the top of the mounting plate, a winding wheel is fixedly connected to the bottom of the rotating handwheel, and an antifreeze cover is wound around the outside of the winding wheel.

[0009] The scraping mechanism is installed on the outside of one side of the take-up sleeve. The scraping mechanism includes a mounting frame, an adjusting plate is inserted inside the mounting frame, a threaded rod is inserted inside the adjusting plate, an adjusting wheel is fixedly connected to the outside of one side of the threaded rod, a scraping plate is fixedly connected to the bottom end of the adjusting plate, and a take-up groove is opened on the outside of one side of the take-up sleeve.

[0010] An adsorption mechanism is disposed outside the antifreeze cover.

[0011] Preferably, the bottom end of the take-up reel is rotatably connected to a rotating seat, and the rotating seat is disposed at the bottom end of the take-up sleeve.

[0012] Preferably, the antifreeze cover is rotated and wound outside the winding wheel, and the antifreeze cover is made of PVC material.

[0013] Preferably, the threaded rod is inserted through the interior of the mounting frame, the threaded rod is threadedly connected to the adjusting plate, and the adjusting plate is slidably connected inside the mounting frame.

[0014] Preferably, an antifreeze cover is inserted inside the winding groove, and the mounting bracket is fixedly connected to the inner wall of the winding groove by bolts.

[0015] Preferably, the adsorption mechanism includes a suction cup, the top of which is fixedly connected to an insertion post, a fixing sleeve is fitted around the insertion post, and an insertion groove is formed at the bottom of the fixing sleeve.

[0016] Preferably, the suction cup is made of elastic rubber, and the fixing sleeve is fastened to the outside of the insertion post through an insertion groove, the diameter of which is larger than the inner diameter of the insertion post.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The present invention, through the installation plate, rotating handwheel, mounting frame and adjusting plate, enables the winding wheel to rotate on the rotating seat when the antifreeze cover is rolled up, so that the antifreeze cover can be rolled up outside the winding wheel. At this time, the scraper plate abuts against the outside of the antifreeze cover. By rotating the adjusting wheel, the position of the adjusting plate on the threaded rod can be adjusted, so that the scraper plate can be finely adjusted when it abuts against the antifreeze cover. Thus, by limiting the abutment of the scraper plate on the antifreeze cover, the rain and snow on the surface of the antifreeze cover can be automatically scraped during the rolling, thereby improving the functionality of the antifreeze device.

[0019] (2) The present invention, through the suction cup, insertion post, fixing sleeve and insertion groove, enables the suction cup to be fixedly installed on the antifreeze cover at different positions on the antifreeze cover by the fixing sleeve through the fastening of the antifreeze cover on the insertion post when the antifreeze cover is laid on the windshield of the car. This facilitates the suction cup to be adsorbed at multiple points on the glass at different positions, and improves the convenience and stability of the antifreeze cover when in use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the overall structure of the winding mechanism;

[0022] Figure 3 For the present invention Figure 1 A schematic diagram of the overall structure of the central scraping mechanism;

[0023] Figure 4 For the present invention Figure 1 A schematic diagram of the overall structure of the adsorption mechanism.

[0024] In the diagram: 1. Rewinding sleeve; 2. Rewinding mechanism; 201. Mounting plate; 202. Rotating handwheel; 203. Rewinding wheel; 204. Rotating seat; 3. Scraping mechanism; 301. Mounting bracket; 302. Adjusting plate; 303. Threaded rod; 304. Adjusting wheel; 305. Scraping plate; 306. Rewinding groove; 4. Antifreeze cover; 5. Adsorption mechanism; 501. Suction cup; 502. Insertion post; 503. Fixing sleeve; 504. Insertion groove. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1:

[0027] Please see Figures 1-4 As shown, a retractable antifreeze device for automotive glass includes:

[0028] 1. Retracting sleeve;

[0029] The winding mechanism 2 is located inside the winding sleeve 1. The winding mechanism 2 includes a mounting plate 201. A rotating handwheel 202 is provided at the top of the mounting plate 201. A winding wheel 203 is fixedly connected to the bottom of the rotating handwheel 202. An antifreeze cover 4 is wound around the outside of the winding wheel 203.

[0030] The scraping mechanism 3 is installed on the outside of one side of the take-up sleeve 1. The scraping mechanism 3 includes a mounting frame 301, an adjusting plate 302 is inserted inside the mounting frame 301, a threaded rod 303 is inserted inside the adjusting plate 302, an adjusting wheel 304 is fixedly connected to the outside of one side of the threaded rod 303, a scraping plate 305 is fixedly connected to the bottom end of the adjusting plate 302, and a take-up groove 306 is opened on the outside of one side of the take-up sleeve 1.

[0031] The adsorption mechanism 5 is located outside the antifreeze cover 4. The bottom end of the take-up roller 203 is rotatably connected to the rotating seat 204, which is located at the bottom end of the take-up sleeve 1. The antifreeze cover 4 is rotatably wound around the outside of the take-up roller 203. The antifreeze cover 4 is made of PVC material.

[0032] Specifically, the exterior of the antifreeze cover 4 is coated with a superhydrophobic coating. A micro-nano rough structure is formed by nano-scale silica (SiO2), fluorinated polymers (such as PTFE, i.e., Teflon), or organosilicon resins (such as polydimethylsiloxane PDMS), so that the surface contact angle is >150° and the roll-off angle is <10°, allowing snow water to roll off quickly instead of adhering, thereby preventing snow water from freezing on the exterior of the antifreeze cover 4. In addition, a fluorinated polymer (such as fluorinated polyurethane) or silane modified coating is used to reduce the surface energy of the material (<20mN / m), which greatly weakens the adhesion strength between ice crystals and the cover (the adhesion strength of ordinary glass ice is about 100-500kPa, while the antifreeze coating can reduce it to below 50kPa), making it easier to peel off snow water after it freezes.

[0033] As can be seen from the above, when performing the winding operation of the antifreeze cover 4, the adsorption mechanism 5 is first disassembled. Then, by manually rotating the handwheel 202, the transmission structure between the handwheel 202 and the winding wheel 203 is used to drive the winding wheel 203 to rotate smoothly on the rotating seat 204 fixed to the main body of the device. This rotation causes the antifreeze cover 4 wrapped around the outside of the winding wheel 203 to gradually wind up and tighten, achieving the storage function. At the same time, the scraper plate 305 located on the winding path is always tightly abutting against the outer surface of the antifreeze cover 4. Its abutting force and position can be precisely controlled by the adjustment mechanism. Specifically, the user rotates the adjustment wheel 304, which drives the adjustment plate 302 to move axially along the threaded rod 303 through the helical transmission principle of the threaded rod 303, thereby driving the scraper plate 305 connected to the adjustment plate 302 to move synchronously, achieving The contact position between the scraper blade 305 and the antifreeze cover 4 is precisely adjusted. This adjustment function ensures that the scraper blade 305 maintains the optimal contact state according to the actual thickness of the antifreeze cover 4, the tension changes during winding, or the accumulation of rain and snow on the surface. When the antifreeze cover 4 is wound up with the winding wheel 203, the scraper blade 305 simultaneously scrapes and cleans the surface of the antifreeze cover 4 below it, automatically removing rain, snow, water stains, or dust residues adhering to the antifreeze cover 4, preventing these impurities from being rolled into the winding wheel 203 and causing accumulation, adhesion, or damage. Through this linkage design, not only are the operation steps for users to wind up the antifreeze cover 4 simplified, but the overall functionality of the antifreeze device is also significantly improved. That is, while completing the basic storage function, the cleaning and maintenance effect is achieved simultaneously, effectively extending the service life of the antifreeze cover 4.

[0034] Example 2:

[0035] refer to Figure 3 and Figure 4 As shown, the threaded rod 303 is inserted through the inside of the mounting frame 301. The threaded rod 303 is threadedly connected to the adjusting plate 302. The adjusting plate 302 is slidably connected inside the mounting frame 301. An antifreeze cover 4 is inserted inside the winding groove 306. The mounting frame 301 is fixedly connected to the inner wall of the winding groove 306 by bolts. The adsorption mechanism 5 includes a suction cup 501. An insertion post 502 is fixedly connected to the top of the suction cup 501. A fixing sleeve 503 is sleeved on the outside of the insertion post 502. An insertion groove 504 is opened at the bottom of the fixing sleeve 503. The suction cup 501 is made of elastic rubber. The fixing sleeve 503 is fastened to the outside of the insertion post 502 through the insertion groove 504. The diameter of the insertion groove 504 is larger than the inner diameter of the insertion post 502.

[0036] Specifically, when the fixing sleeve 503 is fastened to the insertion post 502, the insertion post 502 is located inside the antifreeze cover 4, while the fixing sleeve 503 is located outside. This allows the antifreeze cover 4 to be fixed outside the suction cup 501 when the fixing sleeve 503 is pressed and fixed on the insertion post 502, thus facilitating the multi-point adsorption and fixation of the antifreeze cover 4 on the glass by the suction cup 501.

[0037] As can be seen from the above, during the installation of the antifreeze cover 4 on the car windshield, the fixing sleeve 503 serves as an intermediate connecting component, achieving precise fastening between the antifreeze cover 4 and the insertion post 502 through the antifreeze cover 4. This fastening action not only stably connects the antifreeze cover 4 and the insertion post 502, but more importantly, it provides a flexible positioning basis for the suction cup 501: since the fixing sleeve 503 can freely adjust the fastening position on the insertion post 502, the suction cup 501 installed on the fixing sleeve 503 can achieve differentiated positioning in different areas of the antifreeze cover 4 (such as the edge, center, or corner) according to the actual shape, curvature of the glass surface, or user needs; furthermore, multiple suction cups 501 can be flexibly adjusted and dispersed to adsorb at multiple points on the windshield, which not only avoids the problem of easy slippage and fall-off of traditional single-point adsorption, but also enhances the overall stability of the fit through the synergistic effect of multiple adsorption points; ultimately, it significantly improves the ease of operation during installation and the firmness and reliability during use of the antifreeze cover 4, and is especially suitable for the adaptation needs of windshields of different models and sizes.

[0038] All standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic anti-frost device for a vehicle glazing, characterised in that, Include: Winding sleeve (1); Winding mechanism (2), the winding mechanism (2) is arranged inside the winding sleeve (1), the winding mechanism (2) includes the mounting plate (201), the top of the mounting plate (201) is provided with a rotating hand wheel (202), the bottom of the rotating hand wheel (202) is fixedly connected with a winding wheel (203), the outside of the winding wheel (203) is wound with a frost protection cover (4); Sweeping mechanism (3), the sweeping mechanism (3) is installed on one side of the outside of the winding sleeve (1), the sweeping mechanism (3) includes a mounting frame (301), the inside of the mounting frame (301) is inserted with an adjusting plate (302), the inside of the adjusting plate (302) is inserted with a threaded rod (303), one side of the outside of the threaded rod (303) is fixedly connected with an adjusting wheel (304), the bottom of the adjusting plate (302) is fixedly connected with a sweeping plate (305), one side of the outside of the winding sleeve (1) is provided with a winding groove (306); Suction mechanism (5), the suction mechanism (5) is arranged outside the frost protection cover (4).

2. A telescopic anti-frost device for a vehicle window according to claim 1, characterized in that: The bottom of the winding wheel (203) is rotatably connected with a rotating seat (204), and the rotating seat (204) is arranged at the bottom of the winding sleeve (1).

3. A telescopic anti-frost device for a vehicle window according to claim 1, characterized in that: The frost protection cover (4) is rotatably wound outside the winding wheel (203), and the frost protection cover (4) is made of PVC material.

4. A telescopic anti-frost device for a vehicle window according to claim 1, characterized in that: The threaded rod (303) is inserted through the inside of the mounting frame (301), the threaded rod (303) is threadedly connected with the adjusting plate (302), and the adjusting plate (302) is slidably connected in the mounting frame (301).

5. A telescopic anti-frost device for a vehicle window according to claim 1, characterized in that: The inside of the winding groove (306) is inserted with the frost protection cover (4), and the mounting frame (301) is fixedly connected on the inner side wall of the winding groove (306) by bolts.

6. A telescopic anti-frost device for a vehicle window according to claim 1, characterized in that: The suction mechanism (5) includes a suction disc (501), the top of the suction disc (501) is fixedly connected with an inserting column (502), the outside of the inserting column (502) is sleeved with a fixed sleeve (503), and the bottom of the fixed sleeve (503) is provided with an inserting slot (504).

7. A telescopic anti-frost device for a vehicle window according to claim 6, characterized in that: The suction disc (501) is made of elastic rubber material, the fixed sleeve (503) is buckled on the outside of the inserting column (502) through the inserting slot (504), and the hole diameter of the inserting slot (504) is greater than the inner diameter of the inserting column (502).