Door and window opening and closing angle limiting and buffering device
By designing an angle limiting and buffering device on doors and windows, and using hinge rods, adjusting blocks, and buffer sleeves to limit and buffer the opening and closing angle, the problems of angle loss of control and large impact force during the opening and closing of doors and windows are solved, thereby improving safety and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEIJIANG XINGXING TECH CO LTD
- Filing Date
- 2025-06-14
- Publication Date
- 2026-05-15
AI Technical Summary
Existing doors and windows cannot effectively limit their movement during opening and closing, leading to uncontrolled angles and potential safety hazards. Furthermore, the lack of a buffer mechanism results in a large impact force during opening and closing, affecting service life and safety.
Design a door and window opening and closing angle limiting and buffering device, including an angle limiting component and a buffering component. The opening and closing angle is limited and buffered by a hinge rod, an adjusting block and a buffer sleeve. The position of the adjusting block is fixed by bolts, the guide rod restricts sliding, and the rubber block provides physical buffering.
It effectively prevents loss of control over the angle of doors and windows, reduces the impact force at the moment of opening and closing, and improves the safety and lifespan of doors and windows.
Smart Images

Figure CN224244642U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and window opening and closing technology, specifically a door and window opening and closing angle limiting buffer device. Background Technology
[0002] In the construction and home furnishing sectors, doors and windows, as a crucial component of building envelopes, are of paramount importance in terms of safety, convenience, and reliability. The opening angle control and buffering performance of doors and windows directly impact user experience and safety.
[0003] Currently, most doors and windows on the market have certain design flaws. On the one hand, the existing door and window structures cannot effectively limit the opening and closing angle. After the doors and windows are opened and closed, they are prone to safety accidents due to loss of angle control under the action of external forces.
[0004] On the other hand, traditional doors and windows lack a buffer mechanism during opening and closing, resulting in a large impact force at the moment of opening and closing. This not only generates a lot of noise and reduces the service life of the doors and windows, but may also cause accidental injury to users due to sudden impact.
[0005] Therefore, a door and window opening angle limiting buffer device is proposed to address the above problems. Utility Model Content
[0006] To address the problems mentioned in the background art, this utility model provides a door and window opening and closing angle limiting and buffering device, which has the advantages of effectively limiting the opening and closing angle of doors and windows, preventing the doors and windows from being unable to be limited after opening and closing, causing angle loss of control and easily leading to safety accidents, and can also provide buffering treatment during opening and closing, thereby improving the service life of doors and windows.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a door and window opening and closing angle limiting buffer device, including a door and window frame, wherein a door and window body is hinged to the surface of the door and window frame, and an angle limiting component is installed on the surface of the door and window frame;
[0008] The angle limiting component includes a hinge rod, which is hinged to the bottom of the door / window body. An adjusting block is provided on the surface of the door / window frame. One end of the hinge rod is hinged to the adjusting block. A clearance groove adapted to the adjusting block is opened on the surface of the door / window body. The adjusting block is slidably connected inside the clearance groove. A buffer component is installed on the surface of the door / window body.
[0009] Preferably, a fixing block is installed on the surface of the adjusting block, and a bolt is threaded into a threaded hole on the surface of the fixing block. One end of the bolt passes through the fixing block and is inserted into a socket on the surface of the door or window body.
[0010] Preferably, the surface of the door / window body is provided with several holes, and the multiple holes are distributed in an array on the surface of the door / window body.
[0011] Preferably, the surface of the bolt is provided with anti-slip texture for protection.
[0012] Preferably, the buffer assembly includes a guide rod, which is slidably connected in a through hole on the surface of the adjusting block. Both ends of the guide rod pass through the adjusting block and are installed in the clearance groove. A buffer sleeve is fitted on the surface of the guide rod.
[0013] Preferably, one end of the buffer sleeve is connected to the adjusting block, and the other end of the buffer sleeve is connected to the relief groove.
[0014] Preferably, a rubber block is installed on the surface of the adjusting block, and the rubber block is in contact with the door and window body.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model, by setting an angle limiting component, can limit the angle of the door and window body after opening and closing, so as to avoid the door and window body being subjected to external forces or other factors, causing the opening and closing angle to expand, resulting in loss of angle control and easy to cause safety accidents, and further improving the effect of the door and window body when in use.
[0017] 2. This utility model incorporates a buffer component, which buffers the opening and closing of the door and window body, reducing the impact force at the moment of opening and closing, and further improving the service life of the door and window. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of the adjusting block and guide rod of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the buffer sleeve and guide rod of this utility model.
[0022] In the diagram: 1. Door and window frame; 12. Door and window body; 2. Angle limiting component; 21. Hinge rod; 22. Adjusting block; 23. Leaving groove; 24. Fixing block; 25. Bolt; 3. Buffer component; 31. Guide rod; 32. Buffer sleeve; 33. Rubber block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 4 As shown, this utility model provides a door and window opening and closing angle limiting buffer device, including a door and window frame 1, a door and window body 12 is hinged to the surface of the door and window frame 1, and an angle limiting component 2 is installed on the surface of the door and window frame 1.
[0025] The angle limiting component 2 includes a hinge rod 21. The bottom of the door and window body 12 is hinged to the hinge rod 21. An adjusting block 22 is provided on the surface of the door and window frame 1. One end of the hinge rod 21 is hinged to the adjusting block 22. A relief groove 23 adapted to the adjusting block 22 is opened on the surface of the door and window body 12. The adjusting block 22 is slidably connected inside the relief groove 23. A buffer component 3 is installed on the surface of the door and window body 12, which can limit the angle of the door and window body 12 after opening and closing, and prevent the door and window body 12 from being subjected to external forces and other factors, causing the opening and closing angle to expand, resulting in angle loss of control and easy to cause safety accidents, thereby further improving the effect of the door and window body 12 when in use.
[0026] Specifically, a fixing block 24 is installed on the surface of the adjusting block 22. A bolt 25 is threaded into the threaded hole on the surface of the fixing block 24. One end of the bolt 25 passes through the fixing block 24 and is inserted into the insertion hole on the surface of the door and window body 12, so as to fix the position of the adjusting block 22 and prevent it from moving when the opening and closing angle is limited.
[0027] like Figures 1 to 4 As shown, the surface of the door and window body 12 is provided with several holes, and the multiple holes are distributed in an array on the surface of the door and window body 12, so as to adapt to different opening and closing angles.
[0028] Furthermore, the surface of the bolt 25 is provided with anti-slip texture for protection, which makes it easy for the operator to rotate the bolt 25 and prevents the operator from slipping off the bolt 25 during rotation.
[0029] like Figures 1 to 4 As shown, the buffer assembly 3 includes a guide rod 31. The guide rod 31 is slidably connected in the through hole opened on the surface of the adjusting block 22. Both ends of the guide rod 31 pass through the adjusting block 22 and are installed in the relief groove 23. The surface of the guide rod 31 is fitted with a buffer sleeve 32, so that the door and window body 12 can be buffered when opening and closing, reducing the impact force at the moment of opening and closing, and further improving the service life of the door and window.
[0030] Specifically, one end of the buffer sleeve 32 is connected to the adjusting block 22, and the other end of the buffer sleeve 32 is connected to the relief groove 23, so that buffering can be performed when the adjusting block 22 moves.
[0031] It is worth noting that a rubber block 33 is installed on the surface of the adjusting block 22. The rubber block 33 is in contact with the door and window body 12. The rubber block 33 on the surface of the adjusting block 22 is in contact with the door and window body 12, providing physical cushioning when sliding, further reducing the impact force, and increasing the damping when the door and window body 12 is opened and closed, thereby accurately adjusting the opening and closing angle.
[0032] Among them, the structures such as the door and window frame 1 and the door and window body 12 are existing technologies, and their working principles are well-known technologies. The appropriate model is selected according to the actual use.
[0033] Working principle and process: The main body of the door and window 12 is hinged to the door and window frame 1 via a hinge, and can rotate around the hinge axis to open and close. One end of the hinge rod 21 is hinged to the bottom of the main body of the door and window 12, and the other end is connected to the door and window frame 1 via an adjusting block 22. The adjusting block 22 is embedded in the relief groove 23 on the surface of the main body of the door and window 12 and can slide. When the main body of the door and window 12 rotates around the hinge, the hinge rod 21 drives the adjusting block 22 to slide in the relief groove 23. At this time, the adjusting block 22 slides on the surface of the guide rod 31. The guide rod 31 restricts the sliding position of the adjusting block 22 to prevent the adjusting block 22 from shifting position during sliding. The sliding stroke of the adjusting block 22 determines the maximum opening angle of the main body of the door and window 12. If the adjusting block 22 is fixed at the near end of the relief groove 23, the swing amplitude of the hinge rod 21 is small, and the opening angle is limited; if it is fixed at the far end, a larger opening angle is allowed.
[0034] The fixing block 24 is connected to the insertion hole on the surface of the door and window body 12 by bolt 25. After loosening the bolt 25, the adjusting block 22 can slide freely in the relief groove 23 and be adjusted to the target position. Different insertion holes on the surface of the door and window body 12 are selected according to the needs. The bolt 25 is inserted into the corresponding insertion hole and tightened. The position of the adjusting block 22 is locked by the fixing block 24, thereby setting a fixed maximum opening angle. When the door and window body 12 is opened, the operator rotates the bolt 25 so that the bolt 25 is inserted into the corresponding insertion hole, thereby locking the opening angle of the door and window body 12. Conversely, it can be unlocked.
[0035] The adjusting block 22 slides within the relief groove 23, thereby compressing or stretching the buffer sleeve 32. The buffer sleeve 32 absorbs the kinetic energy of the movement through elastic deformation, slowing down the sliding speed of the adjusting block 22, thereby reducing the impact force when the door and window body 12 is opened and closed, achieving a buffering effect. The rubber block 33 on the surface of the adjusting block 22 fits against the door and window body 12, providing physical buffering when sliding, further reducing the impact force, and increasing the damping when the door and window body 12 is opened and closed, thereby precisely adjusting the opening and closing angle.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A door / window opening / closing angle limiting buffer device, comprising a door / window frame (1), characterized in that: The door and window frame (1) is hinged to the door and window body (12) by a hinge, and an angle limiting component (2) is installed on the surface of the door and window frame (1); The angle limiting component (2) includes a hinge rod (21), the bottom of the door and window body (12) is hinged with the hinge rod (21), the surface of the door and window frame (1) is provided with an adjusting block (22), one end of the hinge rod (21) is hinged with the adjusting block (22), the surface of the door and window body (12) is provided with a relief groove (23) adapted to the adjusting block (22), the adjusting block (22) is slidably connected inside the relief groove (23), and a buffer component (3) is installed on the surface of the door and window body (12).
2. The door and window opening angle limiting buffer device according to claim 1, characterized in that: A fixing block (24) is installed on the surface of the adjusting block (22). A bolt (25) is threaded into the threaded hole on the surface of the fixing block (24). One end of the bolt (25) passes through the fixing block (24) and is inserted into the insertion hole on the surface of the door and window body (12).
3. The door and window opening angle limiting buffer device according to claim 1, characterized in that: The surface of the door and window body (12) is provided with several holes, and the multiple holes are distributed in an array on the surface of the door and window body (12).
4. The door and window opening angle limiting buffer device according to claim 2, characterized in that: The surface of the bolt (25) is provided with anti-slip texture for protection.
5. The door and window opening angle limiting buffer device according to claim 1, characterized in that: The buffer assembly (3) includes a guide rod (31). The guide rod (31) is slidably connected in the through hole opened on the surface of the adjusting block (22). Both ends of the guide rod (31) pass through the adjusting block (22) and are installed in the relief groove (23). The surface of the guide rod (31) is covered with a buffer sleeve (32).
6. A door and window opening angle limiting buffer device according to claim 5, characterized in that: One end of the buffer sleeve (32) is connected to the adjusting block (22), and the other end of the buffer sleeve (32) is connected to the relief groove (23).
7. A door and window opening angle limiting buffer device according to claim 5, characterized in that: The surface of the adjusting block (22) is fitted with a rubber block (33), which is in contact with the door and window body (12).