A door and window protector

Abstract

The present invention discloses a door and window protector, comprising: a mounting body, a roller rotatably mounted on the mounting body, a flexible strip disposed around the outer circumference of the roller, a free end of the flexible strip being mounted on a frame or movable panel of the door or window, a first elastic member disposed between the roller and the mounting body, the first elastic member being capable of driving the roller to rotate so as to reel the flexible strip onto the roller, a locking mechanism disposed between the roller and the mounting body, the locking mechanism being capable of unlocking or locking the roller to the mounting body to adjust the length of the free end of the flexible strip extending from the mounting body. When it is necessary to adjust the opening angle of the door or window, the locking mechanism is used to unlock the roller, the roller being capable of rotating relative to the mounting body to unwind the flexible strip to a preset length, and the locking mechanism being used to lock the roller to the mounting body, thereby fixing the length of the free end of the flexible strip extending from the mounting body, thereby facilitating adjustment of the opening angle of the door or window to suit the needs of different occasions.

Description

Technical Field

[0001] The invention relates to a door and window protector. Background Art

[0002] Door and window protectors are safety devices used on doors and windows, limiting their opening angle to prevent theft or falls. Currently, typical door and window protectors consist of a chain, one end of which is fixed to the door or window frame and the other end is attached to a movable panel. The opening angle of the door or window is determined by the length of the chain, making it difficult to adjust the angle according to user needs. Furthermore, the chain is exposed to air for extended periods, making it susceptible to moisture corrosion and dust accumulation, which compromises hygiene. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a door and window protector that is convenient for adjusting the opening angle of doors and windows.

[0004] According to an embodiment of the present invention, a door and window protector includes: a mounting body, a roller is rotatably provided on the mounting body, a flexible strip is provided around the outer circumference of the roller, the free end of the flexible strip is used to be mounted on the frame or movable panel of the door and window, a first elastic member is provided between the roller and the mounting body, the first elastic member can drive the roller to rotate so that the flexible strip is wound around the roller, a locking mechanism is provided between the roller and the mounting body, the locking mechanism can unlock or lock the roller to the mounting body to adjust the length of the free end of the flexible strip extending from the mounting body.

[0005] The door and window protector according to the embodiment of the present invention has at least the following beneficial effects:

[0006] One of the above mounting body and the free end of the flexible strip is set on the frame of the door and window, and the other is set on the movable panel of the door and window. When the opening angle of the door and window needs to be adjusted, the locking mechanism is used to unlock the roller, and the roller can be rotated relative to the mounting body to unwind the flexible strip to a preset length. The locking mechanism is then used to lock the roller to the mounting body, thereby fixing the length of the free end of the flexible strip extending from the mounting body. The door and window protector is easy to adjust the opening angle of the door and window through the above structure, which is suitable for use in different occasions.

[0007] In some embodiments of the present invention, the mounting body includes a bottom shell and a surface cover mounted on the bottom shell, the bottom shell and the surface cover define a accommodating space and an output port connected to the accommodating space, the roller and at least part of the flexible strip are located within the accommodating space, and the first elastic member drives the flexible strip to retract into the accommodating space along the output port.

[0008] In some embodiments of the present invention, a pivot portion is provided inside the bottom shell, the middle portion of the roller is passed through the pivot portion to rotate around the pivot portion, the first elastic member is a coil spring passed through the pivot portion, and the two ends of the coil spring are respectively connected to the pivot portion and the roller.

[0009] In some embodiments of the present invention, the bottom shell is provided with a limiting ring coaxially arranged with the pivot portion on the outer periphery of the roller, and the side of the limiting ring is provided with a discharge port capable of connecting to the output port, and the flexible strip is a steel belt located between the limiting ring and the outer peripheral wall of the roller, and the steel belt can pass through the discharge port and the output port in sequence.

[0010] In some embodiments of the present invention, the locking mechanism includes a plurality of first slots circumferentially arranged around the roller and a locking element movably provided on the mounting body and capable of being combined with or separated from any of the first slots.

[0011] In some embodiments of the present invention, the mounting body is provided with a second card slot that can correspond to the first card slot thereof, the locking element has a first card block that cooperates with the first card slot and a second card block that cooperates with the second card slot, and the locking element is connected to a second elastic element, and the second elastic element can drive the locking element to move so that the first card block and the first card slot are combined and the second card block and the second card slot are combined.

[0012] In some embodiments of the present invention, the mounting body includes a bottom shell and a surface cover mounted on the bottom shell, the bottom shell is formed with a pivot portion and a limiting ring concentrically arranged with the pivot portion, the roller has a first annular portion concentrically arranged with the pivot portion and located between the pivot portion and the limiting ring, the second clamping groove and the first clamping groove are respectively formed on the upper end surfaces of the limiting ring and the first annular portion, two locking elements are provided, and the two locking elements are arranged on the surface cover in back-to-back radial sliding along the limiting ring, the second elastic element is a spring with both ends respectively resting between the locking element and the surface cover, a first annular interval for avoiding the first blocking block is formed between the pivot portion and the first annular portion, and a second annular interval for avoiding the second blocking block is formed between the first annular portion and the limiting ring.

[0013] In some embodiments of the present invention, the inner top surface of the face cover is provided with two guide grooves extending radially along the pivot portion, the outer surface of the face cover is provided with side through holes capable of connecting to the guide grooves, the locking element is slidably arranged in the guide grooves, the locking element has a pressing portion extending along the side through holes, and the spring is pressed against the pressing portion radially outward along the pivot portion to combine the first card block and the first card groove and the second card block and the second card groove.

[0014] In some embodiments of the present invention, the roller is provided with a plurality of mounting posts spaced around the pivot portion within the first circular interval, the end of the first elastic member away from the pivot portion has a first hook portion hung on one of the mounting posts, and one end of the flexible strip has a second hook portion hung on one of the mounting posts.

[0015] In some embodiments of the present invention, the free end of the flexible strip is connected to a plug-in block for being inserted into a frame or a movable panel of a door or window.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a door and window protector of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of a door and window protector according to an embodiment;

[0020] Figure 3 for Figure 1 Schematic diagram of the interior cross-section of a door and window protector according to an embodiment. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] See also Figures 1 to 3 A door and window protector of the present invention includes: a mounting body 100, a roller 200 is rotatably provided on the mounting body 100, a flexible strip 300 is provided around the outer circumference of the roller 200, the free end of the flexible strip 300 is used to be installed on the frame or movable panel of the door and window, a first elastic member 400 is provided between the roller 200 and the mounting body 100, the first elastic member 400 can drive the roller 200 to rotate so that the flexible strip 300 is wound on the roller 200, and a locking mechanism 500 is provided between the roller 200 and the mounting body 100, the locking mechanism 500 can unlock or lock the roller 200 to the mounting body 100 to adjust the length of the free end of the flexible strip 300 extending from the mounting body 100.

[0026] One of the free ends of the mounting body 100 and the flexible strip 300 is disposed on the frame of the door or window, and the other is disposed on the movable panel of the door or window, where the movable panel can be a door panel or a window door. Generally speaking, the mounting body 100 is disposed on the frame of the door or window, and the free end of the flexible strip 300 is connected to the movable panel of the door or window. When the opening angle of the door or window needs to be adjusted, the roller 200 is unlocked using the locking mechanism 500. The roller 200 can be rotated relative to the mounting body 100 to unwind the flexible strip 300 to a preset length. The roller 200 is then locked to the mounting body 100 using the locking mechanism 500, thereby fixing the length of the free end of the flexible strip 300 extending from the mounting body 100. The door or window protector facilitates adjustment of the opening angle of the door or window through the above structure, and is adapted to the needs of use in different occasions.

[0027] See also Figure 2 and Figure 3 In some embodiments of the present invention, the mounting body 100 includes a bottom shell 110 and a cover 120 mounted on the bottom shell 110. The bottom shell 110 and the cover 120 define a receiving space and an output port 101 connected to the receiving space. The roller 200 and at least a portion of the flexible strip 300 are located within the receiving space. The first elastic member 400 forces the flexible strip 300 to retract into the receiving space along the output port 101. When the door and window protector is no longer needed, the user can detach the free end of the flexible strip 300 from the door or window frame or movable panel, then unlock the roller 200 from the mounting body 100. Under the action of the first elastic member 400, the roller 200 can rotate relative to the mounting body 100 to accommodate most of the flexible strip 300 within the receiving space, thereby protecting the flexible strip 300 from moisture, corrosion, and dust. In addition, it should be noted that, in order to prevent the flexible strip 300 from extending out of the outlet 101 again, the free end of the flexible strip 300 cannot pass through the outlet 101 and must be stored in the accommodation space.

[0028] See also Figure 2 and Figure 3 In some embodiments of the present invention, a pivot portion 111 is provided within the bottom housing 110. The middle portion of the roller 200 is inserted through the pivot portion 111 to rotate about the pivot portion 111. The first elastic member 400 is a coil spring inserted through the pivot portion 111, with its ends connected to the pivot portion 111 and the roller 200, respectively. The coil spring provides a strong elastic force for the rotation of the roller 200, thereby achieving the winding of the flexible strip 300. Furthermore, the above structure is simple and compact, which facilitates the rational layout of the various components.

[0029] See also Figure 2In some embodiments of the present invention, the bottom shell 110 is provided with a limiting ring 112 coaxially arranged with the pivot portion 111 on the outer periphery of the roller 200. A discharge port 1121 capable of communicating with the output port 101 is provided on the side of the limiting ring 112. The flexible strip 300 is a steel belt positioned between the limiting ring 112 and the outer peripheral wall of the roller 200. The steel belt can sequentially pass through the discharge port 1121 and the output port 101. It is understood that the steel belt has high strength and is not easily broken when the door or window is opened. In addition, the steel belt is relatively thin, so that a longer steel belt can be accommodated within the limited space between the limiting ring 112 and the outer peripheral wall of the roller 200, thereby expanding the range of adjustment for the opening angle of the door or window.

[0030] See also Figure 2 In some embodiments of the present invention, the locking mechanism 500 includes a plurality of first slots 510 circumferentially arranged around the roller 200 and a lock 520 movably disposed on the mounting body 100 and capable of engaging with or disengaging from any of the first slots 510. It should be noted that the lock 520 is movable relative to the mounting body 100. When the lock 520 moves away from the first slots 510, the restraint on the roller 200 is released. The movable panel of the door or window is now opened to a certain angle, and the roller 200 also rotates to a certain angle relative to the mounting body 100. The lock 520 then moves to engage with one of the first slots 510, preventing the roller 200 from further rotating and limiting the opening angle of the movable panel. The above locking mechanism 500 has a simple structure and is easy to use. The number of first slots 510 can be arbitrarily set according to usage needs. A greater number of first slots 510 increases the adjustable range of the movable panel's opening angle.

[0031] See also Figure 2 and Figure 3In some embodiments of the present invention, in order to prevent the lock member 520 from producing an angular deviation relative to the mounting body 100 and affecting the stability of the opening angle of the doors and windows, the mounting body 100 is provided with a second card slot 530 corresponding to a first card slot 510 thereof, and the lock member 520 has a first card block 521 that cooperates with the first card slot 510 and a second card block 522 that cooperates with the second card slot 530. The lock member 520 is connected to a second elastic member 540, and the second elastic member 540 can drive the lock member 520 to move so that the first card block 521 is combined with the first card slot 510 and the second card block 522 is combined with the second card slot 530. It can be understood that, under the action of the second elastic member 540, the lock member 520 moves to the point where the first block 521 is combined with the first slot 510, and at the same time the second block 522 is combined with the second slot 530. When it is necessary to adjust the length of the flexible strip 300 extending out of the output port 101 to adjust the opening angle of the door or window, the user can overcome the elastic force of the second elastic member 540 to move the lock member 520 so that the first block 521 and the first slot 510 are separated, and at the same time the second block 522 and the second slot 530 are separated.

[0032] See also Figure 2 and Figure 3In some embodiments of the present invention, in order to facilitate the production and assembly of the door and window protector, the installation body 100 includes a bottom shell 110 and a surface cover 120 installed on the bottom shell 110. The bottom shell 110 is formed with a pivot portion 111 and a limiting ring 112 arranged concentrically with the pivot portion 111. The roller 200 has a first annular portion 210 arranged concentrically with the pivot portion 111 and located between the pivot portion 111 and the limiting ring 112. The second card groove 530 and the first card groove 510 are respectively formed on the upper end surfaces of the limiting ring 112 and the first annular portion 210. Correspondingly, the first card block 521 The second clamping block 522 is formed on the lower end surface of the lock member 520 to enter and exit the corresponding first clamping groove 510 and second clamping groove 530. Two lock members 520 are provided, and the two lock members 520 are arranged on the face cover 120 to slide in opposite directions along the radial direction of the limiting ring 112. The second elastic member 540 is a spring whose two ends respectively rest between the lock member 520 and the face cover 120. A first circular ring interval for avoiding the first clamping block 521 is formed between the pivot portion 111 and the first circular ring portion 210, and a second circular ring interval for avoiding the second clamping block 522 is formed between the first circular ring portion 210 and the limiting ring 112. When it is necessary to unlock the roller 200, the user pinches the two locking pieces 520 with his fingers, and the two locking pieces 520 overcome the action of the second elastic piece 540 and move toward each other. At this time, the first card block 521 leaves the first card slot 510 and enters the first circular interval, and the second card block 522 leaves the second card slot 530 and enters the second circular interval. The roller 200 can then rotate relative to the mounting body 100. During the rotation of the roller 200, the first circular interval provides a cavity position for the first card block 521, and the second circular interval provides a cavity position for the second card block 522 to avoid interference.

[0033] In some embodiments of the present invention, the inner top surface of the cover 120 is provided with two guide slots extending radially along the pivot portion 111. The outer surface of the cover 120 is provided with side through-holes 122 that can communicate with the guide slots. The lock member 520 is slidably disposed in the guide slots. The lock member 520 has a pressing portion 523 extending along the side through-holes 122. A spring presses against the pressing portion 523 radially outwardly along the pivot portion 111 to engage the first latch 521 with the first latch slot 510 and the second latch 522 with the second latch slot 530. In this embodiment, a support plate is further provided below the cover 120 to support the lock member 520 and prevent it from falling downward. The lock member 520 is generally L-shaped. The pressing portion 523 is located at the end of the lock member 520. When the lock member 520 moves along the guide slots, the pressing portion 523 can move in and out along the side through-holes 122. Specifically, when the roller 200 needs to be unlocked, the pressing portion 523 is pushed radially inward toward the pivot portion 111, the spring is compressed, the first block 521 is separated from the first slot 510, and at the same time the second block 522 is separated from the second slot 530.

[0034] See also Figure 2 In some embodiments of the present invention, in order to facilitate the fixation of the ends of the first elastic member 400 and the flexible strip 300, the roller 200 is provided with a plurality of mounting posts 220 spaced around the pivot portion 111 within the first circular interval, and the end of the first elastic member 400 away from the pivot portion 111 has a first hook 410 hung on one of its mounting posts 220, and the end of the flexible strip 300 away from the output port 101 has a second hook 310 hung on one of its mounting posts 220.

[0035] See also Figure 1 and Figure 2 In some embodiments of the present invention, in order to facilitate the connection of the free end of the flexible strip 300 to the frame or movable panel of the door or window, the free end of the flexible strip 300 is connected to a plug-in block 600 for being inserted into the frame or movable panel of the door or window. Accordingly, the frame or movable panel of the door or window is provided with a slot that matches the plug-in block 600.

[0036] Specifically, the plug-in block 600 is connected to a locking block 610 that fits into a locking hole via a spring. The door and window protector also includes a fixing base, which is mounted on the door and window frame. The mounting body 100 is mounted on the movable panel of the door and window. A slot is provided on the fixing base, which has a locking hole connected to the slot. When the plug-in block 600 is inserted into the slot, the spring drives the locking block 610 into the locking hole, preventing the plug-in block 600 from moving relative to the slot, providing a high level of security. When the door and window protector is not in use, the locking block 610 is simply pushed in the direction of the compressed spring to disengage the locking hole, at which point the plug-in block 600 can be removed from the slot.

[0037] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A door and window protector, characterized in that: include: A mounting body (100) is provided with a roller (200) which is rotatably mounted on the mounting body (100), a flexible strip (300) being arranged around the outer periphery of the roller (200), a free end of the flexible strip (300) being used for mounting on a frame or a movable panel of a door or window, a first elastic member (400) being provided between the roller (200) and the mounting body (100), the first elastic member (400) being capable of driving the roller (200) to rotate so that the flexible strip (300) is wound around the roller (200), a locking mechanism (500) being provided between the roller (200) and the mounting body (100), the locking mechanism (500) being capable of unlocking or locking the roller (200) to the mounting body (100) so as to adjust the length of the free end of the flexible strip (300) extending out of the mounting body (100); The mounting body (100) comprises a bottom shell (110) and a surface cover (120) mounted on the bottom shell (110); a receiving space and an output port (101) communicating with the receiving space are defined between the bottom shell (110) and the surface cover (120); the roller (200) and at least a portion of the flexible strip (300) are located within the receiving space; the first elastic member (400) drives the flexible strip (300) to retract into the receiving space along the output port (101); the locking mechanism (500) comprises a plurality of first slots (51) circumferentially arranged around the roller (200); 0) and a locking member (520) movably provided on the mounting body (100) and capable of being combined with or separated from any of the first card slots (510); the mounting body (100) is provided with a second card slot (530) capable of corresponding to one of the first card slots (510); the locking member (520) has a first card block (521) matched with the first card slot (510) and a second card block (522) matched with the second card slot (530); the locking member (520) is connected to a second elastic member (540); the second elastic member (540) can drive the locking member (520) to move so that the first card slot (510) A clamping block (521) is combined with the first clamping slot (510), and the second clamping block (522) is combined with the second clamping slot (530); the bottom shell (110) is formed with a pivot portion (111) and a limiting ring (112) arranged concentrically with the pivot portion (111); the roller (200) has a first annular portion (210) arranged concentrically with the pivot portion (111) and located between the pivot portion (111) and the limiting ring (112); the second clamping slot (530) and the first clamping slot (510) are respectively formed on the limiting ring (112) and the first annular portion (210); 10), two locking members (520) are provided, and the two locking members (520) are arranged on the surface cover (120) in a radially sliding manner along the limiting ring (112) in opposite directions, and the second elastic member (540) is a spring with two ends respectively resting between the locking member (520) and the surface cover (120), a first circular ring section for avoiding the first clamping block (521) is formed between the pivot portion (111) and the first circular ring portion (210), and a second circular ring section for avoiding the second clamping block (522) is formed between the first circular ring portion (210) and the limiting ring (112).

2. A door and window protector according to claim 1, characterized in that: A pivot portion (111) is provided inside the bottom shell (110), a middle portion of the roller (200) is passed through the pivot portion (111) to rotate around the pivot portion (111), and the first elastic member (400) is a coil spring passed through the pivot portion (111), with two ends of the coil spring being connected to the pivot portion (111) and the roller (200), respectively.

3. A door and window protector according to claim 2, characterized in that: The bottom shell (110) is provided with a limiting ring (112) coaxially arranged with the pivot portion (111) on the outer periphery of the roller (200); a side portion of the limiting ring (112) is provided with a discharge port (1121) capable of communicating with the discharge port (101); the flexible strip (300) is a steel belt located between the limiting ring (112) and the outer peripheral wall of the roller (200); the steel belt is capable of passing through the discharge port (1121) and the discharge port (101) in sequence.

4. The door and window protector according to claim 1, characterized in that: The inner top surface of the face cover (120) is provided with two guide slots extending radially along the pivot portion (111), and the outer surface of the face cover (120) is provided with side through holes (122) capable of communicating with the guide slots. The locking member (520) is slidably arranged in the guide slots. The locking member (520) has a pressing portion (523) extending along the side through holes (122), and the spring is pressed against the pressing portion (523) radially outwardly along the pivot portion (111) to combine the first block (521) with the first slot (510) and the second block (522) with the second slot (530).

5. The door and window protector according to claim 1, characterized in that: The roller (200) is provided with a plurality of mounting posts (220) at intervals around the pivot portion (111) within the first annular region. The end of the first elastic member (400) away from the pivot portion (111) has a first hook (410) hooked on one of the mounting posts (220). One end of the flexible strip (300) has a second hook (310) hooked on one of the mounting posts (220).

6. The door and window protector according to claim 1, characterized in that: The free end of the flexible strip (300) is connected to a plug-in block (600) for being plugged into a frame or a movable panel of a door or window.

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