Protective plate for plastic-steel doors and windows

By designing protective panels for PVC windows and doors with adjustment components and deflectors, the problem of mud and rainwater entering PVC windows and doors during installation has been solved, achieving stable installation and improved protection.

CN223867911UActive Publication Date: 2026-02-03SICHUAN NADER ENERGY SAVING DOORS & WINDOWS CO LTD
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Patent Information

Application Number
CN202520425084.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-03
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

During the installation of existing PVC windows and doors, mud and rainwater can easily enter the window frame grooves due to the influence of external wind, causing the drainage holes to become clogged. In addition, the existing protective panels are unstable to install and have poor applicability.

Method used

A protective plate for PVC windows and doors has been designed, comprising an adjustment component, a plug-in plate, and a deflector plate. The length of the baffle can be adjusted by the adjustment component to adapt to different window grooves, the plug-in plate increases friction, and the deflector plate prevents dust and rainwater from entering, thereby enhancing stability and protective effect.

Benefits of technology

It enables stable installation of window tracks of different lengths, prevents dust and rainwater from entering, improves the applicability and installation stability of the protective plate, and reduces the possibility of dust and rainwater entering the window track.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective plate for plastic-steel doors and windows, and relates to the technical field of buildings, the protective plate comprises a mounting shell, the front side and the rear side of the bottom of the mounting shell are fixedly connected with first plug boards, and the two sides of the interior of the mounting shell are slidably connected with a first baffle and a second baffle which are used for dust prevention; limiting grooves used in cooperation with the first baffle and the second baffle are formed in the mounting shell. The protection device has the advantages that when the lengths of the first baffle and the second baffle need to be adjusted to protect window grooves with different lengths, the first baffle and the second baffle move in opposite directions to abut against the inner walls of the window grooves to be fixed through cooperation of the adjusting assemblies; friction force generated when the mounting shell is clamped to the inner wall of the window groove can be improved through sealing strips on a first inserting plate and a second inserting plate, meanwhile, rainwater and dust can be obliquely blocked through a first flow guide plate and a second flow guide plate, dust falling on the mounting shell is reduced, and the dust is prevented from falling into the inner wall of the window groove.
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Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a protective panel for PVC doors and windows. Background Technology

[0002] PVC windows and doors are made primarily of polyvinyl chloride resin, with added stabilizers, colorants, fillers, UV absorbers, etc. The resin is extruded into profiles, which are then cut, welded, or screwed together to form window and door frames. Sealing strips, weatherstripping, and hardware are then added. To enhance the rigidity of the profiles, steel reinforcement (stiffening ribs) are added to the cavities of profiles exceeding a certain length. When installing PVC windows and doors, first clean the windowsill and measure its width and height to ensure they match the window frame dimensions. Then, place the window frame on the windowsill and secure it with expansion screws. Apply sealant to the edges of the window frame and windowsill, allowing it to dry. Finally, install the window sash into the groove of the window frame.

[0003] However, after the door and window frames are installed, while waiting for the sealant to dry, due to the influence of the external wind, some mud and sand will be blown into the grooves on the window frame, and even some rainwater will fall into the grooves, which can easily clog the drainage holes and affect the installation of the window sash. Therefore, protective plates for PVC doors and windows are needed. Although there are some protective plates on the market, they only have a single water-blocking effect, and they are not stable enough after being plugged in. In addition, some window grooves are of different lengths, making it inconvenient to adjust them, and their applicability is poor. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A protective plate for PVC windows and doors includes: a first plug-in plate fixedly connected to the front and rear sides of the bottom of the mounting shell; a first baffle and a second baffle for dust prevention slidably connected to both sides inside the mounting shell; a limiting groove for cooperating with the first and second baffles inside the mounting shell; an adjustment component for unfolding the first and second baffles provided at the top of the inner cavity of the mounting shell; a pressure plate hinged to the opposite side of the first and second baffles; and a second plug-in plate fixedly connected to the front and rear sides of one side of the pressure plate.

[0007] The adjusting assembly includes a rotating rod and a toothed plate. The rotating rod is installed inside the mounting housing via a bearing ring. A torsion block is fixedly connected to the top of the rotating rod, and a gear is fixedly connected to the bottom of the rotating rod. The front and rear sides of the gear are respectively meshed with two toothed plates. One side of the bottom of the two toothed plates is fixed to the top of the first baffle and the second baffle, respectively.

[0008] As a preferred embodiment of the protective plate for PVC doors and windows described in this utility model, wherein: one side of each of the two toothed plates is fixedly connected to a reinforcing block, and the bottom of each of the two reinforcing blocks is fixedly connected to the first baffle and the second baffle, respectively.

[0009] As a preferred embodiment of the protective plate for PVC windows and doors described in this utility model, wherein: a sealing strip for fitting into the window sill groove is fixedly connected to one side of the first plug plate and the second plug plate respectively, and the sealing strip is arranged in an array.

[0010] As a preferred embodiment of the protective plate for PVC windows and doors described in this utility model, the top of the pressure plate is fixedly connected to a sealing plate that fits the vertical window groove, and the sealing plate has a slot inside for inserting the vertical plate of the window groove.

[0011] As a preferred embodiment of the protective plate for plastic steel doors and windows described in this utility model, the mounting shell has sliding grooves on both sides of the rear side, and the top sides of the first baffle and the second baffle are respectively fixedly connected with a first guide plate and a second guide plate for resisting wind and sand.

[0012] As a preferred embodiment of the protective plate for PVC doors and windows described in this utility model, wherein: an extension plate for filling gaps after adjustment is fixedly connected to the front side of the second guide plate, and a drainage groove is provided on one side of both the first guide plate and the second guide plate.

[0013] As a preferred embodiment of the protective plate for PVC doors and windows described in this utility model, the top of the first baffle and the second baffle are respectively provided with slots, the top of the inner cavity of the mounting shell is respectively fixedly connected to the two sides of the top, the bottom of the spring is fixedly connected to a toothed block that cooperates with the slot, and the top of the toothed block is fixedly connected to a pull rod that extends through to the outside of the mounting shell.

[0014] The beneficial effects of this utility model are as follows: When it is necessary to adjust the length of the first baffle and the second baffle to protect window grooves of different lengths, the first baffle and the second baffle can be moved in opposite directions by adjusting the components to press against the inner wall of the window groove for fixation. The sealing strips on the first and second plug plates can increase the friction when they are snapped against the inner wall of the window groove. At the same time, the first and second guide plates can also block rainwater and dust, reducing dust falling on the mounting shell and preventing dust from falling into the inner wall of the window groove. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is an overall structural diagram of the protective panel used for PVC windows and doors.

[0017] Figure 2 Another perspective view of the overall structure of the protective panel for PVC windows and doors.

[0018] Figure 3 This is a partial structural diagram of the protective panel used for PVC windows and doors.

[0019] Figure 4 This is a structural diagram of the first baffle of a protective panel for PVC windows and doors.

[0020] Figure 5 This is a structural diagram of the adjustment component for protective panels used in PVC windows and doors.

[0021] Figure 6 Protective panels for PVC windows and doors Figure 5 Enlarged structural diagram at point A in the middle.

[0022] The following are the labeling elements in the diagram: 1. Mounting shell; 2. First insertion plate; 3. First baffle; 31. Second baffle; 4. Limiting groove; 5. Adjustment assembly; 501. Rotating rod; 502. Toothed plate; 503. Torsion block; 504. Gear; 6. Pressing plate; 7. Second insertion plate; 8. Reinforcing block; 9. Sealing strip; 10. Sealing plate; 11. Slot; 12. Slide groove; 13. First guide plate; 14. Second guide plate; 15. Extension plate; 16. Drainage groove; 17. Slot; 18. Spring; 19. Toothed block; 20. Pull rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1:

[0027] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a protective plate for PVC windows and doors, including an adjustment component 5. When it is necessary to adjust the length of the first baffle 3 and the second baffle 31 to protect window grooves of different lengths, the adjustment component 5 can be used to move the first baffle 3 and the second baffle 31 in opposite directions to press against the inner wall of the window groove for fixation. The sealing strips 9 on the first plug plate 2 and the second plug plate 7 can increase the friction when they are engaged with the inner wall of the window groove. At the same time, the first guide plate 13 and the second guide plate 14 can also have the effect of blocking rainwater and dust, reducing dust falling on the mounting shell 1 and preventing dust from falling into the inner wall of the window groove.

[0028] The front and rear sides of the bottom of the mounting shell 1 are fixedly connected to the first plug-in plate 2. The two sides inside the mounting shell 1 are slidably connected to the first baffle 3 and the second baffle 31 for dust prevention. The inside of the mounting shell 1 is provided with a limiting groove 4 for use with the first baffle 3 and the second baffle 31. The top of the inner cavity of the mounting shell 1 is provided with an adjustment component 5 for unfolding the first baffle 3 and the second baffle 31. The opposite sides of the first baffle 3 and the second baffle 31 are respectively hinged to the pressure plate 6. The front and rear sides of the pressure plate 6 are fixedly connected to the second plug-in plate 7.

[0029] The first plug-in plate 2 is fixed to the bottom of the mounting shell 1, making it easy to insert into the window groove for positioning. The first baffle 3 and the second baffle 31 are slidably connected to the two sides inside the mounting shell 1, and the width of the two protective parts is adjusted in conjunction with the adjustment component 5 to accommodate different window frames. Through the hinge between the pressure plate 6 and the second plug-in plate 7, the pressure plate 6 can drive the second plug-in plate 7 to be vertically inserted into the two sides of the window groove, thereby improving the installation stability of the mounting shell 1 and preventing dust from falling in from the two sides of the window groove.

[0030] The adjusting assembly 5 includes a rotating rod 501 and a toothed plate 502. The rotating rod 501 is installed inside the mounting housing 1 through a bearing ring. A torsion block 503 is fixedly connected to the top of the rotating rod 501, and a gear 504 is fixedly connected to the bottom of the rotating rod 501. The front and rear sides of the gear 504 are respectively meshed with the two toothed plates 502. One side of the bottom of the two toothed plates 502 is fixed to the top of the first baffle 3 and the second baffle 31 respectively.

[0031] When the user needs to adjust the first baffle 3 and the second baffle 31 to protect the long window sill groove, the twist block 503 can be rotated. As the twist block 503 rotates, it will drive the rotating rod 501 to rotate. The rotating rod 501 will drive the gear 504 to mesh with the two toothed plates 502 to move in opposite directions. As the toothed plates 502 move, they will drive the first baffle 3 and the second baffle 31 to move in opposite directions respectively, and press against the inside of the window frame groove for protection. At the same time, it can also ensure the installation stability of the mounting shell 1.

[0032] Example 2:

[0033] Reference Figures 2-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, a reinforcing block 8 is fixedly connected to one side of each of the two toothed plates 502, and the bottom of the two reinforcing blocks 8 is fixedly connected to the first baffle 3 and the second baffle 31 respectively.

[0035] By using two reinforcing blocks 8, which are respectively fixed between the first baffle 3, the second baffle 31 and the toothed plate 502, the connection strength between the toothed plates 502 on both sides and the first baffle 3 and the second baffle 31 can be improved.

[0036] Specifically, the first plug plate 2 and the second plug plate 7 are respectively fixedly connected to one side of a sealing strip 9 for fitting into the window sill groove, and the sealing strip 9 is arranged in an array.

[0037] By fixing the sealing strip 9 in an array on one side of the first plug-in plate 2 and the second plug-in plate 7, the friction when plugged into the inner wall of the window frame groove can be increased, ensuring the protective strength and preventing accidental falling due to external impact. In addition, the sealing strip 9 is made of rubber and fits tightly with the inside of the window frame groove during installation.

[0038] Specifically, the top of the pressure plate 6 is fixedly connected to a sealing plate 10 that fits the vertical window groove. The sealing plate 10 has a slot 11 inside for inserting the vertical plate of the window groove.

[0039] By fixing the sealing plate 10 to the top of the pressure plate 6 and cooperating with the slot 11, the sealing plate 10 can be inserted into the middle of the window frame groove, and the slot 11 can be inserted into the edge strip of the window frame groove, thereby sealing the top of the pressure plate 6 simultaneously and preventing impurities from falling into the window frame groove.

[0040] Specifically, the rear sides of the mounting housing 1 are provided with sliding grooves 12, and the top sides of the first baffle 3 and the second baffle 31 are respectively fixedly connected with a first guide plate 13 and a second guide plate 14 for resisting wind and sand.

[0041] By setting the chute 12, the first guide plate 13 and the second guide plate 14 can be more stable when moving, thereby playing a guiding role and ensuring the stability of the first guide plate 13 and the second guide plate 14 when moving with the first baffle 3 and the second baffle 31.

[0042] Specifically, the front side of the second guide plate 14 is fixedly connected to an extension plate 15 for use in conjunction with the adjustment component 5 to fill gaps after adjustment, and a drainage groove 16 is provided on one side of both the first guide plate 13 and the second guide plate 14.

[0043] The extension plate 15 is fixed to one side of the second guide plate 14, and its length is parallel to one side of the first guide plate 13. Therefore, when the second guide plate 14 moves with the second baffle 31, it will also drive the extension plate 15 to move to one side, thereby blocking the position of the first baffle 3 that moves in the opposite direction. Furthermore, the arrangement of the first guide plate 13 and the second guide plate 14 can suppress rainwater and sand, reducing the possibility of them falling into the mounting shell 1 and the window frame groove. The drainage groove 16 can also have a certain water-draining effect, allowing rainwater to flow along the guide plate to the outside.

[0044] Specifically, slots 17 are provided on the top of the first baffle 3 and the second baffle 31 respectively. Springs 18 are fixedly connected to both sides of the top of the inner cavity of the mounting shell 1. A toothed block 19 that cooperates with the slot 17 is fixedly connected to the bottom of the spring 18. A pull rod 20 that penetrates to the outside of the mounting shell 1 is fixedly connected to the top of the toothed block 19.

[0045] The slots 17 are respectively opened on the top of the first baffle 3 and the second baffle 31. When the first baffle 3 and the second baffle 31 are unfolded in opposite directions to cooperate with the adjustment component 5 for adjustment, the toothed block 19 will be subjected to force and slide in contact with the inclined surface of the slot 17, and compress the spring 18 until the positions of the first baffle 3 and the second baffle 31 are adjusted. Then the toothed block 19 is engaged inside the slot 17. At this time, if the first baffle 3 and the second baffle 31 want to move relative to each other, they will be pressed by the plane on the other side of the toothed block 19 against the plane of the slot 17, thereby ensuring the stability of the first baffle 3 and the second baffle 31 after adjustment. When it is necessary to reset the first baffle 3 and the second baffle 31, the pull rod 20 can be pulled. At this time, the pull rod 20 drives the toothed block 19 up and down and compresses the spring 18. Then the toothed block 19 falls out of the slot 17, and then the first baffle 3 and the second baffle 31 are compressed relative to each other to complete the reset work.

[0046] In use, the first insertion plate 2 and sealing strip 9 are inserted into the inner wall of the window frame groove by the mounting shell 1 and pressed downwards to rub and fix them. Then, the user can rotate the toggle block 503, which will drive the rotating rod 501 to rotate. The rotating rod 501 will drive the gear 504 to mesh with the two toothed plates 502 to move in opposite directions. As the toothed plates 502 move, they will drive the first baffle 3 and the second baffle 31 to move in opposite directions respectively. At this time, the toothed block 19 will be subjected to force and slide in contact with the inclined surface of the slot 17, compressing the spring 18. After the positions of the first baffle 3 and the second baffle 31 are adjusted, the toothed block 19 is engaged inside the slot 17. At this time, if the first baffle 3 and the second baffle 31 want to move relative to each other, they will be pressed against the plane of the other side of the toothed block 19 and the plane of the slot 17, thus ensuring that the first baffle 3 and the second baffle 31 are in a stable position. After the plate 31 is adjusted and stabilized, the inside of the window frame groove is protected from dust and rain by the first baffle 3 and the second baffle 31 until the sealant dries. Finally, the window sash is installed in the groove of the window frame and presses against the inside of the window frame groove for protection. During the movement of the first baffle 3 and the second baffle 31, the first guide plate 13 and the second guide plate 14 will also move in opposite directions to extend the protection width. When the second guide plate 14 moves, it will drive the extension plate 15 to move to one side, thereby blocking the position of the first baffle 3 that moves in opposite directions. Through the setting of the first guide plate 13 and the second guide plate 14, rainwater and sand can be suppressed, reducing the possibility of falling into the mounting shell 1 and the inside of the window frame groove. The drainage groove 16 can play a certain role in drainage, allowing rainwater to flow to the outside along the guide plate.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective panel for PVC windows and doors, comprising a mounting shell (1), characterized in that: The mounting shell (1) has a first plug-in plate (2) fixedly connected to the front and rear sides of the bottom. The mounting shell (1) has a first baffle (3) and a second baffle (31) for dust prevention slidably connected to both sides of the interior. The mounting shell (1) has a limiting groove (4) for cooperating with the first baffle (3) and the second baffle (31). The top of the inner cavity of the mounting shell (1) is provided with an adjustment component (5) for unfolding the first baffle (3) and the second baffle (31). The first baffle (3) and the second baffle (31) are respectively hinged to the opposite side of the first baffle (3) and the second baffle (31). The front and rear sides of one side of the pressure plate (6) are fixedly connected to the second plug-in plate (7). The adjustment assembly (5) includes a rotating rod (501) and a toothed plate (502). The rotating rod (501) is installed inside the mounting housing (1) through a bearing ring. A torsion block (503) is fixedly connected to the top of the rotating rod (501), and a gear (504) is fixedly connected to the bottom of the rotating rod (501). The front and rear sides of the gear (504) are respectively meshed with two toothed plates (502). One side of the bottom of the two toothed plates (502) is fixed to the top of the first baffle (3) and the second baffle (31).

2. The protective panel for PVC doors and windows as described in claim 1, characterized in that: A reinforcing block (8) is fixedly connected to one side of each of the two toothed plates (502), and the bottom of each of the two reinforcing blocks (8) is fixedly connected to the first baffle (3) and the second baffle (31) respectively.

3. The protective panel for PVC doors and windows as described in claim 1, characterized in that: The first plug plate (2) and the second plug plate (7) are respectively fixedly connected to a sealing strip (9) for fitting against the window sill groove, and the sealing strip (9) is arranged in an array.

4. The protective panel for PVC doors and windows as described in claim 1, characterized in that: The top of the pressure plate (6) is fixedly connected to a sealing plate (10) that fits the vertical window groove. The sealing plate (10) has a slot (11) inside for inserting the vertical plate of the window groove.

5. The protective panel for PVC doors and windows as described in claim 1, characterized in that: The mounting housing (1) has sliding grooves (12) on both sides of the rear side inside. The top sides of the first baffle (3) and the second baffle (31) are respectively fixedly connected to the first guide plate (13) and the second guide plate (14) for resisting wind and sand.

6. The protective panel for PVC doors and windows as described in claim 5, characterized in that: The front side of the second guide plate (14) is fixedly connected to an extension plate (15) for use in conjunction with the adjustment component (5) to fill the gap after adjustment. The first guide plate (13) and the second guide plate (14) are both provided with drainage grooves (16).

7. The protective panel for PVC doors and windows as described in claim 1, characterized in that: The top of the first baffle (3) and the second baffle (31) are respectively provided with slots (17). Springs (18) are fixedly connected to both sides of the top of the inner cavity of the mounting shell (1). The bottom of the spring (18) is fixedly connected to a toothed block (19) that is used to cooperate with the slot (17). The top of the toothed block (19) is fixedly connected to a pull rod (20) that extends through to the outside of the mounting shell (1).