Door and window micro-ventilation device

Abstract

The utility model relates to the field of hardware fittings, in particular to a door and window micro ventilation device. Comprising a first part, a second part and a connecting rod connected between the first part and the second part, the first part comprises a fixed seat and a sliding seat, a first sliding groove is formed in the fixed seat, a second sliding groove is formed in the sliding seat, the open ends of the first sliding groove and the second sliding groove are opposite, one end of the connecting rod is provided with a connecting column, and the other end of the connecting rod is hinged to the second part. The first part is provided with a sliding rail, the sliding seat is movably installed in the sliding rail, an extension piece is arranged at the end, away from the second sliding groove, of the sliding seat, a sliding hole is formed in the extension piece, a limiting hole is formed in the position, corresponding to the sliding hole, of the fixed seat, a limiting bolt penetrates through the sliding hole and the limiting hole, and the position of the sliding seat can be kept fixed by rotating the limiting bolt. According to the utility model, the sliding seat is fixed on the fixed seat through the limiting bolt, the operation is simple, the use is convenient and fast, the safety of the micro-ventilation device is improved, and the micro-ventilation device is simple in structure and stable in micro-ventilation function.

Description

Technical Field

[0001] The utility model belongs to the technical field of door and window hardware accessories, and particularly relates to a door and window micro-ventilation device. Background Art

[0002] Micro-ventilation devices are used to secure the window sash and frame at a small angle, ensuring the window is slightly open to allow ventilation between the indoor and outdoor areas. As users' requirements for doors and windows become increasingly demanding, they are demanding that the window sash function when opened, and that micro-ventilation also has the ability to dampen wind pressure.

[0003] The Chinese invention patent with publication number "CN108590394A" discloses a casement window micro-ventilation device and a casement window, comprising: a connecting rod with a locking point provided on it; a slide groove assembly, comprising a bottom groove, an upper slider, an intermediate slider and a lower slider provided on the bottom groove and sliding on the bottom groove; wherein, an upper slide groove is provided on the upper slider; a lower slide groove is provided on the lower slider; an intermediate slide groove is provided on the intermediate slider, a locking point guide groove is also provided on the intermediate slider, and the locking point guide groove is located at one end where the intermediate slide groove contacts the upper slide groove; the locking point enters the intermediate slide groove through the locking point guide groove and can slide in the upper slide groove, the intermediate slide groove and the lower slide groove; a tension spring is connected between the intermediate slider and the upper slider, and a compression spring is connected between the lower slider and the bottom groove; a locking groove is provided on the bottom groove, and a child safety lock mechanism connected to or separated from the locking groove is also provided on the upper slider.

[0004] However, the above-mentioned micro-ventilation device still has the following defects:

[0005] First, the child safety lock mechanism requires a specific key to open, which increases the reliance on the key. If the key is lost, the user will not be able to connect or remove the child safety lock, which may result in the inability to quickly open the window in an emergency, increasing safety risks.

[0006] Second, the child safety lock mechanism is detachably connected to the locking slot. As time goes by, the durability and effectiveness of the lock mechanism may decrease. This may cause the lock mechanism to malfunction at critical moments, affecting safety performance.

[0007] Third, in emergencies, such as fires or earthquakes, users need to quickly open doors and windows to escape. If the child safety lock mechanism requires finding the key before unlocking, this will greatly prolong the opening time, increase the risk factor, and reduce the efficiency of emergency escape. Utility Model Content

[0008] The technical problem to be solved by the present invention is to provide a door and window micro-ventilation device with a simple structure and a high safety factor in view of the deficiencies of the above-mentioned prior art.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a door and window micro-ventilation device, including a first component, a second component and a connecting rod connected between the first component and the second component, the first component including a fixed seat and a sliding seat, the fixed seat is provided with a first slide groove, the sliding seat is provided with a second slide groove, the first slide groove and the open end of the second slide groove are opposite, one end of the connecting rod is provided with a connecting column, and the other end is hinged to the second component, the first component is provided with a slide rail, the sliding seat is movably installed in the slide rail, the sliding seat is provided with an extension piece at the end away from the second slide groove, the extension piece is provided with a sliding hole, the fixed seat and the sliding hole are provided with a limiting hole at the corresponding position, the sliding hole and the limiting hole are penetrated with a limiting bolt, and rotating the limiting bolt can keep the position of the sliding seat fixed.

[0010] By adopting the above technical solution, a limit bolt is set, and the limit bolt is passed through between the sliding hole and the fixed seat. When the position of the sliding seat needs to be fixed, the limit bolt is tightened by rotating the limit bolt to limit the extension piece to a fixed position, thereby fixing the position of the sliding seat. When it needs to be opened, the limit bolt can be rotated in the opposite direction to release the limit, and the sliding seat can restore its sliding ability.

[0011] The utility model can be further configured as follows: the limit bolt is a bolt, a straight slot is provided on the top of the limit bolt, the limit bolt is a straight bolt, the limit bolt can be detachably connected to the limit hole, and the limit bolt can be driven to rotate by an object that meets the size of the straight slot.

[0012] By adopting the above technical solution: the limit bolt is a straight bolt, and the sliding block can be tightened or loosened by inserting a variety of different flat objects into the straight groove, effectively increasing the convenience of opening and closing doors and windows in critical moments.

[0013] The utility model can be further configured as follows: a limiting plate is hingedly connected to the bottom of the sliding seat, a fixed column is provided at one end of the sliding rail close to the fixed seat, and an inclined surface that abuts against the limiting plate is provided at the other end; a spring is provided between the fixed column and the sliding seat, and one end of the spring is fixed to the fixed column and the other end is fixed to the sliding seat.

[0014] By adopting the above technical solution, when the doors and windows need to be kept open, the sliding seat moves toward the side of the limit bolt, pulling the spring until the limit plate is against the inclined surface, causing the sliding seat to approach the limit bolt and the position to be fixed, and an open opening is formed at the opposite position of the first slide groove and the second slide groove, and the connecting column of the connecting rod can be placed or removed from the open opening.

[0015] The utility model can be further configured as follows: an elastic buckle is provided at the end of the first slide groove, the elastic buckle is hinged in the first slide groove, and the elastic buckle can be engaged with the connecting column to fix the position of the connecting column relative to the first slide groove.

[0016] By adopting the above technical solution, the connecting column is clamped into the elastic buckle, so that the rotation center of the connecting rod remains fixed, thereby keeping the maximum opening angle of the micro-ventilation device consistent, and the performance of the micro-ventilation device is improved.

[0017] The utility model can be further configured as follows: a fixed pressing plate is provided at one end of the fixed seat near the sliding hole, a placement groove for accommodating the fixed pressing plate is provided at the bottom of the fixed seat, a limit block is provided at one end of the placement groove, and a limit groove is provided on one side of the fixed pressing plate to counteract the limit block.

[0018] By adopting the above technical solution, a fixed pressing plate is set, and the fixed pressing plate can be set on the fixing seat by rotating the cross screw. After the fixing seat is inserted into the door and window frame, a cross wrench is used to rotate the cross screw to drive the fixed pressing plate to rotate, so that the raised parts at both ends of the fixed pressing plate fix the sash mounting plate and the window sash, thereby achieving the effect of convenient installation. At the same time, combined with the fixed pressing plate, a double fixing effect is achieved; through the setting of the limit block and the limit groove, it is convenient for the staff to distinguish the installation direction during installation, thereby improving the installation efficiency.

[0019] The utility model can be further configured as follows: the second component includes a door and window fixing piece and an elastic block located on the door and window fixing piece, wherein a self-locking mechanism is provided in the elastic block, and the self-locking mechanism can keep the relative position between the connecting rod and the door and window fixing piece fixed.

[0020] By adopting the above technical solution, when the doors and windows are closed, the self-locking mechanism can simply fix the door and window fixings and the position of the doors and windows. When the doors and windows need to be opened, a certain amount of force is required to open the self-locking mechanism. Since children do not have enough strength, they cannot simply open the doors and windows, which greatly improves the safety factor and protection capability of the doors and windows.

[0021] The utility model can be further configured as follows: the self-locking mechanism includes a fastening rod, a pressure plate, a locking spring, a locking block and a locking groove on a rivet column for riveting door and window fixings and connecting rods, the pressure plate is connected to the fastening rod, one end of the locking spring is connected to the pressure plate, and the other end is connected to the locking block.

[0022] By adopting the above technical solution, when the door and window fixings are rotated, the elastic block rotates with the door and window fixings, while the relative positions of the rivet column and the connecting rod are fixed. When the door and window are closed, the door and window fixings are parallel to the connecting rod, and the locking block is clamped into the lock groove by the elastic force of the locking spring to achieve self-locking.

[0023] The utility model can be further configured as follows: an anti-rebound mechanism capable of contacting the connecting rod is provided on one side of the end surface where the door and window fixing piece is riveted to the connecting rod, and the anti-rebound mechanism can prevent the door and window from rebounding.

[0024] By adopting the above technical solution and setting up the anti-rebound mechanism, when the doors and windows are closed, the position of the connecting rod is limited by the anti-rebound mechanism, thereby preventing the doors and windows from shaking back and forth due to strong winds and rebounding, while avoiding air leakage and improving the sealing.

[0025] The present invention can be further configured as follows: the anti-rebound mechanism includes a first bending piece and a second bending piece extending toward the other side, a first retaining groove is formed between the first bending piece and the door and window fixing piece, a second retaining groove is formed between the second bending piece and the door and window fixing piece, and the first bending piece and the second bending piece are respectively located at both ends of the door and window fixing piece.

[0026] By adopting the above technical solution, through the setting of the bending piece and the placement groove, when the window sash is closed, the connecting rod is located in the placement groove between the bending piece and the door and window fixing piece, thereby playing a limiting role, avoiding the doors and windows from shaking back and forth due to strong winds, and improving their use effect. At the same time, bending pieces and placement grooves are respectively provided at both ends of the door and window fixing piece, so that the micro-ventilation device can be adaptively installed, thereby improving the convenience of installation.

[0027] The beneficial effects of the door and window micro-ventilation device described in this application are:

[0028] First, rotating the limit bolt to secure or release the sliding seat simplifies operation and improves ease of use. In an emergency, users can quickly release the limit and open the doors and windows, improving escape efficiency. Furthermore, the inclusion of self-locking and anti-rebound mechanisms enhances the safety factor of the doors and windows, preventing children from opening them at will and preventing them from rebounding due to strong winds, thereby improving their sealing performance.

[0029] Second, the design of the fixed pressure plate and stop block makes the installation process more intuitive and efficient, improving installation efficiency. The compact design and simple appearance of the device coordinate with the overall design of the door and window without affecting the aesthetics. The use of standardized components and simplified operation procedures reduces production and maintenance costs and improves economic benefits.

[0030] Third, the device's elastic clip secures the connecting column, maintaining the connecting rod's center of rotation. This ensures a consistent maximum opening angle for the micro-ventilation device, improving performance. Thanks to its rational structural design, components are easily disassembled and replaced, facilitating routine maintenance. The design of the bending tabs and placement slots allows the micro-ventilation device to adapt to doors and windows of varying sizes, enhancing installation flexibility.

[0031] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of the utility model;

[0033] Figure 2 This is a schematic diagram of the first component of the utility model;

[0034] Figure 3 This is a schematic diagram of the first component of the utility model from another perspective;

[0035] Figure 4 This is a schematic diagram of the fixing seat of the utility model;

[0036] Figure 5 This is a schematic diagram of the fixing seat of the utility model from another perspective;

[0037] Figure 6 This is a schematic diagram of the sliding seat of the utility model;

[0038] Figure 7 This is a schematic diagram of the combination of the connecting rod and the second component of the utility model;

[0039] Figure 8 This is a schematic diagram of the combination of the connecting rod and the second component of the utility model from another perspective;

[0040] Figure 9 This is a schematic diagram of the door and window installation parts of the utility model;

[0041] Figure 10 This is a schematic diagram of the interior of the elastic block of the utility model;

[0042] Reference numerals: first component 1, fixing seat 11, first slide groove 111, limiting hole 112, limiting bolt 113, straight groove 114, elastic buckle 115, fixed pressing piece 116, placement groove 117, limiting block 118, limiting groove 119, sliding seat 12, second slide groove 121, extension piece 122, sliding hole 123, limiting piece 124, sliding rail 13, fixing column 131, inclined surface 132, spring 133, second component 2, door and window fixing part 21, elastic block 22, self-locking mechanism 23, fastening rod 231, pressure plate 232, locking spring 233, locking block 234, anti-rebound mechanism 24, first bending piece 241, second bending piece 242, first resisting groove 243, second resisting groove 244, connecting rod 3, connecting column 31, rivet column 32, locking groove 321. DETAILED DESCRIPTION

[0043] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] like Figures 1 to 10The micro-ventilation device for doors and windows shown in the figure includes a first component 1, a second component 2 and a connecting rod 3 connected between the first component 1 and the second component 2. The first component includes a fixed seat 11 and a sliding seat 12. The fixed seat 11 is provided with a first slide groove 111, and the sliding seat 12 is provided with a second slide groove 121. The open ends of the first slide groove 111 and the second slide groove 121 are opposite to each other. One end of the connecting rod 3 is provided with a connecting column 31, and the other end is hinged to the second component 2. The first component 1 is provided with a slide rail 13, and the sliding seat 12 is movably installed in the slide rail 13. The sliding seat 12 is provided with an extension piece 122 at the end away from the second slide groove 121, and the extension piece 122 is provided with a sliding hole 123. A limiting hole 112 is provided at the corresponding position of the fixed seat 11 and the sliding hole 123. A limiting bolt 113 is passed through the sliding hole 123 and the limiting hole 112. Rotating the limiting bolt 113 can keep the position of the sliding seat 12 fixed. By setting a limit bolt 113, the limit bolt 113 is passed through the sliding hole 123 and the fixed seat 11. When the position of the sliding seat 12 needs to be fixed, the limit bolt 113 is tightened by rotating the limit bolt 113 to limit the extension piece 122 to a fixed position, thereby fixing the position of the sliding seat 12. When it needs to be opened, the limit bolt 113 can be rotated in the opposite direction to release the limit, and the sliding seat 12 can restore its sliding ability.

[0045] like Figure 1 、 Figure 2 The illustrated stop bolt 113 is a straight-shaped bolt with a straight-shaped slot 114 at its top. The slot 114 can accommodate a variety of flat objects and can drive the stop bolt 113 to rotate. The stop bolt 113 can be tightened or loosened in a variety of ways, effectively increasing the convenience of opening and closing doors and windows in critical moments.

[0046] like Figures 1 to 6The bottom of the sliding seat 112 shown is hingedly connected to a limit plate 124, and the sliding rail 13 is provided with a fixed column 131 at one end close to the fixed seat 11 and a slope 132 at the other end that abuts against the limit plate 124. A spring 133 is provided between the fixed column 131 and the sliding seat 12, and one end of the spring 133 is fixed to the fixed column 131 and the other end is fixed to the sliding seat 12. When the door and window need to remain open, the slide 12 moves toward the side of the limit bolt 113, pulling the spring 133 until the limit plate 124 abuts against the slope 132, causing the sliding seat 12 to approach the limit bolt 113 and fix its position, and an open opening is formed at the opposite position of the first slide groove 111 and the second slide groove 121, and the connecting column 31 of the connecting rod 3 can be placed or removed from the open opening. An elastic clip 115 is provided at the end of the first slide groove 111, and the elastic clip 115 is hinged in the first slide groove 111. The elastic clip 115 can be engaged with the connecting column 31 and the position of the connecting column 31 relative to the first slide groove 111 is relatively fixed. By snapping the connecting column 31 into the elastic clip 115, the rotation center of the connecting rod 3 remains fixed, so that the maximum opening angle of the micro-ventilation device remains consistent, and the performance of the micro-ventilation device is higher. The fixing seat 11 is provided with a fixing pressure piece 116 at one end near the sliding hole 123, and a placement groove 117 for accommodating it is provided at the bottom of the fixing seat 11 at the fixing pressure piece 116. A limit block 118 is also provided at one end of the placement groove 117, and a limit groove 119 is provided on one side of the fixing pressure piece 116 to abut against the limit block 118. Through the setting of the fixing pressure piece 116, the fixing pressure piece 116 can be rotated and set on the fixing seat 11 by a cross screw. After the fixing seat 11 is inserted into the door and window frame, the cross screw is rotated with a cross wrench to drive the fixing pressure piece 116 to rotate, so that the raised parts at both ends of the fixing pressure piece 116 fix the sash mounting piece and the window sash, thereby achieving the effect of convenient installation. At the same time, combined with the fixing pressure piece 116, a double fixing effect is achieved; through the setting of the limit block 118 and the limit groove 119, it is convenient for staff to distinguish the installation direction during installation and improve installation efficiency.

[0047] like Figure 1 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10The second component 2 shown includes a door and window fixing 21 and an elastic block 22 located on the door and window fixing. A self-locking mechanism 23 is provided in the elastic block 22. When the door and window are closed, the self-locking mechanism 23 can keep the relative position between the connecting rod 3 and the door and window fixing 21 fixed. When the door and window need to be opened, a certain force is required to open the self-locking mechanism 23. Since children do not have enough strength, they cannot simply open the door and window, which greatly improves the safety factor and protection capability of the door and window. The self-locking mechanism 23 includes a fastening rod 231, a pressure plate 232, a locking spring 233, a locking block 234 and a locking groove 321 on the rivet column for riveting the door and window fixing part and the connecting rod. The pressure plate 232 is connected to the fastening rod 231, and one end of the locking spring 233 is connected to the pressure plate 232 and the other end is connected to the locking block 234. When the door and window fixing part 21 is rotated, the elastic block 22 rotates with the door and window fixing part 21, while the relative position of the rivet column 32 and the connecting rod 3 is fixed. When the door and window are closed, the door and window fixing part 21 is parallel to the connecting rod 3, and the locking block 234 is clamped in the locking groove 321 by the elastic force of the locking spring to achieve self-locking.

[0048] like Figure 9 The side of the end face where the door and window fixings are riveted to the connecting rod is provided with an anti-rebound mechanism 24 that can interfere with the connecting rod. The anti-rebound mechanism 24 can prevent the doors and windows from rebounding. Through the setting of the anti-rebound mechanism 24, when the doors and windows are closed, the position of the connecting rod 3 is limited by the anti-rebound mechanism 24, thereby preventing the doors and windows from shaking back and forth due to strong winds and rebounding, while avoiding air leakage and improving the sealing performance. The anti-rebound mechanism 24 includes a first bending piece 241 and a second bending piece 242 extending to the other side, a first resisting groove 243 is formed between the first bending piece 241 and the door and window fixing part 21, and a second resisting groove 244 is formed between the second bending piece 242 and the door and window fixing part 21, the first bending piece 241 and the second bending piece 242 are respectively located at the two ends of the door and window fixing part 21, through the setting of the bending piece and the resisting groove, when the window sash is closed, the connecting rod 3 is located in the resisting groove between the bending piece and the door and window fixing part 21, thereby playing a limiting role, avoiding the doors and windows from shaking back and forth due to strong winds, and improving its use effect. At the same time, bending pieces and placement grooves are respectively provided at both ends of the door and window fixing part 21, so that the micro-ventilation device can be adaptively installed, thereby improving the convenience of installation.

[0049] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A door and window micro-ventilation device, comprising a first component, a second component, and a connecting rod connected between the first and second components, wherein the first component comprises a fixed seat and a sliding seat, the fixed seat is provided with a first slide groove, the sliding seat is provided with a second slide groove, the first slide groove and the second slide groove have opposite open ends, the connecting rod has a connecting column at one end and is hinged to the second component at the other end, characterized in that: The first component is provided with a sliding rail, and the sliding seat is movably installed in the sliding rail. The sliding seat is provided with an extension piece at one end away from the second sliding groove, and the extension piece is provided with a sliding hole. The fixed seat and the sliding hole are provided with a limiting hole at the corresponding position, and the sliding hole and the limiting hole are penetrated by a limiting bolt. Rotating the limiting bolt can keep the position of the sliding seat fixed.

2. A door and window micro-ventilation device according to claim 1, characterized in that: The limit bolt is a bolt, a straight slot is provided on the top of the limit bolt, the limit bolt is a straight bolt, the limit bolt is detachably connected to the limit hole, and the limit bolt can be driven to rotate by an object that meets the size of the straight slot.

3. A door and window micro-ventilation device according to claim 2, characterized in that: The bottom of the sliding seat is hingedly connected to a limit plate. The sliding rail is provided with a fixed column at one end close to the fixed seat and an inclined surface at the other end that abuts against the limit plate. A spring is provided between the fixed column and the sliding seat, and one end of the spring is fixed to the fixed column and the other end is fixed to the sliding seat.

4. A door and window micro-ventilation device according to claim 3, characterized in that: An elastic buckle is provided at the end of the first slide groove, and the elastic buckle is hinged in the first slide groove. The elastic buckle can be engaged with the connecting column and fix the position of the connecting column relative to the first slide groove.

5. The door and window micro-ventilation device according to claim 4, characterized in that: The fixing seat is provided with a fixed pressing plate at one end near the sliding hole, and a placement groove for accommodating the fixed pressing plate is provided at the bottom of the fixing seat. A limit block is also provided at one end of the placement groove, and a limit groove is provided on one side of the fixed pressing plate to abut against the limit block.

6. The door and window micro-ventilation device according to claim 1, characterized in that: The second component includes a door and window fixing piece and an elastic block located on the door and window fixing piece. A self-locking mechanism is provided in the elastic block, and the self-locking mechanism can keep the relative position between the connecting rod and the door and window fixing piece fixed.

7. The door and window micro-ventilation device according to claim 6, characterized in that: The self-locking mechanism includes a fastening rod, a pressure plate, a locking spring, a locking block and a locking groove on a rivet column for riveting the door and window fixings and the connecting rod. The pressure plate is connected to the fastening rod, and one end of the locking spring is connected to the pressure plate and the other end is connected to the locking block.

8. The door and window micro-ventilation device according to claim 7, characterized in that: An anti-rebound mechanism capable of contacting the connecting rod is provided on one side of the end surface where the door and window fixing piece is riveted to the connecting rod, and the anti-rebound mechanism can prevent the door and window from rebounding.

9. The door and window micro-ventilation device according to claim 8, characterized in that: The anti-rebound mechanism includes a first bending piece and a second bending piece extending to the other side, a first retaining groove is formed between the first bending piece and the door and window fixing piece, and a second retaining groove is formed between the second bending piece and the door and window fixing piece, and the first bending piece and the second bending piece are respectively located at both ends of the door and window fixing piece.

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