Aluminum-plastic casement window hinge with buffer pad

Abstract

The utility model relates to an aluminium -plastic casement window hinge with buffer pad belongs to aluminium -plastic casement window hinge technical field. The aluminium -plastic casement window hinge with buffer pad, include: hinge seat, the surface of hinge seat is opened with moving groove, one side of moving groove is hinged with hinge arm, protection replacement mechanism is used for the protection of hinge arm use and sets up in one side of hinge arm, wherein, the protection replacement mechanism includes the limiting slide base of sliding installation in moving groove inside, through setting up the protection subassembly of limiting slide base both sides, makes the hinge arm first contact buffer part when opening or closing to limit position, and the buffer part is slowly exhausted through cavity after being pressed, realizes flexible deceleration and steady state buffer, and the replacement subassembly of protection subassembly outside can be quickly replaced when the buffer part is ageing or damaged, need not integral dismounts hinge.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum-plastic casement window hinges, and in particular to an aluminum-plastic casement window hinge with a buffer pad. Background Technology

[0002] Aluminum-plastic casement windows rely on hinges to rotate the window sash during opening and closing. Existing casement window hinges typically include basic components such as hinge base, hinge arm, pivot, limit slide, and several fixing screws, which enable the normal opening and closing of the window sash.

[0003] However, in actual use, when the window sash opens or closes to the limit position, the hinge arm and the limit slide will come into direct contact or impact. The impact force is instantly transmitted to the window frame and window sash through the metal structure, which can easily cause deformation of aluminum-plastic profiles, loosening of hinge connections, or noise. Existing hinges add rubber pads or damping sheets at the limit position to absorb the impact, but such structures have short buffer strokes, low energy absorption efficiency, and the rubber material is prone to aging and hardening, and the buffer performance will decrease significantly after long-term use. Utility Model Content

[0004] Therefore, it is necessary to address the issue that in actual use, when the window sash opens or closes to its limit position, the hinge arm directly impacts the limit slide, and the impact force is transmitted to the window frame and sash through the metal structure, which can easily lead to profile deformation, loose connections, and noise. Existing solutions that add rubber pads or damping sheets at the limit position have short buffer strokes, low energy absorption efficiency, and the materials are prone to aging, resulting in a weakening buffering effect after long-term use. Therefore, a new aluminum-plastic casement window hinge with a buffer pad is needed.

[0005] A casement window hinge with a buffer pad includes: a hinge base, the surface of which has a moving groove, and a hinge arm hinged to one side of the moving groove; a protective replacement mechanism for protecting the hinge arm, the protective replacement mechanism being disposed on one side of the hinge arm; wherein, the protective replacement mechanism includes a limiting slide block slidably installed inside the moving groove, the other side of the hinge arm being hinged to the limiting slide block, a protective component being disposed on the outer side of the limiting slide block, and a replacement component being disposed on one side of the protective component.

[0006] The protective component includes protective pads fixedly installed on both sides of the limiting slide, a movable block slidably connected to the other side of the protective pad, and a buffer pad provided on the other side of the movable block.

[0007] The protective pad is U-shaped on the side near the limiting slide, and the buffer pad has expansion grooves on both sides.

[0008] A piston rod is fixedly installed on one side of the protective pad, and the other end of the piston rod extends into the interior of the movable block and is slidably connected to the movable block.

[0009] The movable block has two vent holes inside, and the other end of each vent hole extends out of the movable block.

[0010] A spring is fixedly connected to one end of the piston rod located inside the movable block, and the other end of the spring is fixedly connected to the inner wall of the movable block.

[0011] The replacement component includes a plug block that is fixedly installed on the side of the buffer pad near the movable block, and a socket is provided on the other side of the movable block, with the plug block being fixedly engaged with the socket.

[0012] Multiple snap-fit ​​rings are fixedly installed on the outer side of the insert block, and the multiple snap-fit ​​rings are distributed at equal intervals.

[0013] Beneficial effects 1. By installing protective components on both sides of the limit slide, the hinge arm contacts the buffer component first when opening or closing to the limit position. The impact is then mitigated by gas compression, effectively absorbing the impact energy and preventing noise and deformation caused by metal collisions. After being compressed, the buffer component slowly exhausts gas through the cavity, achieving flexible deceleration and steady-state buffering. The replacement component on the outside of the protective component can be quickly replaced when the buffer component ages or is damaged, without the need to completely disassemble the hinge. 2. When in use, the plug is inserted into the socket to form a stable mechanical connection, and it can be quickly separated during disassembly and maintenance, which facilitates the repair and replacement of the protective components. When the plug is inserted into the socket, the snap ring forms a multi-point elastic snap engagement with the inner wall of the socket, so that the plug is automatically locked after being inserted into place, preventing the buffer pad from loosening or falling off when it is compressed and rebounds. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the protective replacement mechanism of this utility model; Figure 3 This is a schematic diagram of the protective pad and movable block structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the movable block of this utility model; Figure 5 This is a schematic diagram of the replacement component structure of this utility model.

[0016] Figure label: 100, Hinge seat; 110, Hinge arm; 200, Moving slot; 300, Protective replacement mechanism; 310, Limiting slide; 320, Protective component; 321, Protective pad; 322, Moving block; 323, Buffer pad; 324, Piston rod; 325, Vent hole; 326, Spring; 330, Replacement component; 331, Insertion block; 332, Insertion hole; 333, Snap-fit ​​ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figures 1-5 This invention describes an aluminum-plastic casement window hinge with a buffer pad.

[0019] In one embodiment, an aluminum-plastic casement window hinge with a buffer pad includes: a hinge base 100, the surface of which has a moving groove 200, and a hinge arm 110 hinged to one side of the moving groove 200; a protective replacement mechanism 300, which is disposed on one side of the hinge arm 110 for protecting the hinge arm 110; wherein the protective replacement mechanism 300 includes a limiting slide 310 slidably installed inside the moving groove 200, the other side of the hinge arm 110 is hinged to the limiting slide 310, a protective component 320 is disposed on the outer side of the limiting slide 310, and a replacement component 330 is disposed on one side of the protective component 320.

[0020] In this embodiment, by providing protective components 320 on both sides of the limiting slide 310, the hinge arm 110 can first contact the buffer component of the protective component 320 when it is opened or closed to the limiting position. This generates gas compression and forms a slow-release effect at the moment of impact, effectively absorbing impact energy and avoiding noise and deformation caused by direct metal collision. After being compressed, the buffer component can slowly discharge gas through the internal cavity to achieve flexible braking and steady-state buffering, so that the window sash can decelerate smoothly when it is in the limiting position. The replacement component 330 provided on the outside of the protective component 320 can be quickly disassembled and replaced when the buffer component is aged or damaged, without having to disassemble the entire hinge structure. It should be noted that existing aluminum-plastic casement window hinges typically include basic components such as a hinge seat 100 for fixing to the side of the window frame, a hinge arm 110 hinged to the hinge seat 100, a pivot that passes through the connection between the two, and a limiting slide 310 for limiting the opening and closing angle. Its main function is to realize the opening and closing rotation of the window sash and limit and prevent it from falling off. The protective component 320 is only triggered by compression when the window sash reaches the opening and closing limit. It is in a non-stressed state under normal conditions and will not affect the smoothness of the hinge rotation. The replacement component 330 is used for quick replacement when the buffer component is damaged or aged. Its installation position is independent of the main force-bearing structure of the hinge and does not participate in the opening and closing movement. Therefore, it will not affect the force balance and connection stability of the hinge.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the protective component 320 includes protective pads 321 fixedly installed on both sides of the limiting slide 310, a movable block 322 slidably connected to the other side of the protective pads 321, and a buffer pad 323 provided on the other side of the movable block 322.

[0022] In this embodiment, when the hinge arm 110 drives the window sash to open or close to the limit position, the end of the hinge arm 110 first contacts the movable block 322 and pushes it to slide inward, thereby compressing the buffer pad 323 set behind it, effectively reducing the impact force and impact noise. When the window sash leaves the limit position, the buffer pad 323 returns to its original shape under the action of internal air pressure and elastic restoring force. It should be noted that the buffer pad 323 is preferably an elastomer structure with high resilience, which can be made of silicone, rubber or polyurethane materials. Its internal structure is a dense solid structure, which is used to provide primary elastic support when the movable block 322 is pushed by external force, absorb part of the mechanical impact force and prevent metal-to-metal contact. Through the elastic deformation of the material, a small displacement and buffer are achieved, ensuring that when the hinge arm 110 reaches the limit position, the impact force can be absorbed and released step by step, thereby reducing noise and reducing structural wear.

[0023] The protective pad 321 is U-shaped on the side near the limiting slide 310, and the buffer pad 323 has expansion grooves on both sides.

[0024] In this embodiment, the U-shaped portion of the protective pad 321 covers the outside of the limiting slide 310, so that the protective pad 321 can provide covering support when the limiting slide 310 is under force, avoiding direct collision between metals. The expansion grooves on both sides of the buffer pad 323 can generate elastic deformation when compressed, providing the buffer pad 323 with lateral and radial deformable space, so that it can be gradually compressed in accordance with the direction of force when pushed by the movable block 322, thereby achieving flexible buffering.

[0025] A piston rod 324 is fixedly installed on one side of the protective pad 321, and the other end of the piston rod 324 extends into the interior of the movable block 322 and is slidably connected to the movable block 322.

[0026] In this embodiment, when the buffer pad 323 is squeezed, the movable block 322 slides synchronously along the direction of the limiting slide block 310 under the push of the hinge arm 110, driving the piston rod 324 into the internal cavity of the movable block 322. As the piston rod 324 continues to move, the gas inside the movable block 322 is gradually compressed, forming a gas damping force for buffering.

[0027] The movable block 322 has two vent holes 325 inside, and the other end of each vent hole 325 extends out of the movable block 322.

[0028] In this embodiment, when the gas inside the movable block 322 is squeezed by the piston rod 324, the gas is slowly discharged through the two vent holes 325. When the hinge arm 110 reaches the limit position, the internal gas is gradually discharged under pressure, forming a controllable damping force, which effectively absorbs the limit impact energy. When the hinge arm 110 leaves the limit position, the gas pressure gradually rises, and the gas is replenished through the vent holes 325, and the movable block 322 returns to its initial state.

[0029] A spring 326 is fixedly connected to one end of the piston rod 324 located inside the movable block 322, and the other end of the spring 326 is fixedly connected to the inner wall of the movable block 322.

[0030] In this embodiment, during use, when the hinge arm 110 drives the movable block 322 to slide inward and compress the internal gas, the spring 326 is simultaneously compressed and stores energy, providing auxiliary rebound force for the entire buffering process. When the window sash leaves the limit position, the spring 326 pushes the piston rod 324 to move in the opposite direction under its own elastic force, so that the movable block 322 quickly resets, and at the same time drives the internal gas to replenish and restore to the initial pressure state, ensuring that the protective component 320 has good self-resetting performance.

[0031] like Figure 2 , Figure 3 and Figure 5 As shown, the replacement component 330 includes an insert 331 fixedly installed on the side of the buffer pad 323 near the movable block 322, and an insertion hole 332 is provided on the other side of the movable block 322. The insert 331 is fixedly engaged with the insertion hole 332.

[0032] In this embodiment, when in use, the plug 331 is inserted into the socket 332 to form a stable mechanical connection, and can be quickly separated during disassembly and maintenance, which facilitates the repair and replacement of the protective component 320.

[0033] Multiple snap-fit ​​rings 333 are fixedly installed on the outer side of the insert block 331, and the multiple snap-fit ​​rings 333 are evenly distributed.

[0034] In this embodiment, when the insert block 331 is inserted into the socket 332, the snap ring 333 forms a multi-point elastic snap-fit ​​with the inner wall of the socket 332, so that the insert block 331 is automatically locked after being inserted into place, preventing the buffer pad 323 from loosening or falling off when it is compressed and rebounds.

[0035] Working Principle: During use, the hinge arm 110 drives the window sash to open or close. When the window sash moves to the limit position, the end of the hinge arm 110 first contacts the movable block 322 and pushes it to slide inward, causing the buffer pad 323 behind it to be compressed and deformed. The expansion grooves on both sides of the buffer pad 323 generate elastic deformation during compression, providing primary buffering and flexible support. As the movable block 322 continues to move, the piston rod 324 connected to the protective pad 321 is simultaneously inserted into the internal cavity of the movable block 322, compressing the gas in the cavity. The gas is slowly discharged through the two vent holes 325, forming a stable gas damping force to achieve progressive buffering protection. When the window sash leaves the limit position, the spring 326 pushes the piston rod 324 to move in the opposite direction under its own elastic force, driving the movable block 322 back to its original position. The gas is replenished through the vent holes 325, restoring the system to its initial state and completing one complete buffering cycle. The insert 331 and the socket 332 and the snap ring 333 on its outer side remain firmly connected throughout the process to prevent the buffer pad 323 from loosening or falling off.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aluminum-plastic casement window hinge with a buffer pad, characterized in that, include: A hinge base (100) has a moving groove (200) on its surface, and a hinge arm (110) is hinged to one side of the moving groove (200). A protective replacement mechanism (300) is provided on one side of the hinge arm (110) for protecting the hinge arm (110); The protective replacement mechanism (300) includes a limiting slide (310) that is slidably installed inside the moving groove (200). The other side of the hinge arm (110) is hinged to the limiting slide (310). A protective component (320) is provided on the outside of the limiting slide (310). A replacement component (330) is provided on one side of the protective component (320).

2. The aluminum-plastic casement window hinge with buffer pad according to claim 1, characterized in that, The protective component (320) includes protective pads (321) fixedly installed on both sides of the limiting slide (310), a movable block (322) is slidably connected to the other side of the protective pads (321), and a buffer pad (323) is provided on the other side of the movable block (322).

3. The aluminum-plastic casement window hinge with buffer pad according to claim 2, characterized in that, The protective pad (321) is U-shaped on the side near the limiting slide (310), and the buffer pad (323) has expansion grooves on both sides.

4. The aluminum-plastic casement window hinge with buffer pad according to claim 2, characterized in that, A piston rod (324) is fixedly installed on one side of the protective pad (321), and the other end of the piston rod (324) extends into the interior of the movable block (322) and is slidably connected to the movable block (322).

5. The aluminum-plastic casement window hinge with buffer pad according to claim 4, characterized in that, The movable block (322) has two vent holes (325) inside, and the other end of each of the two vent holes (325) extends out of the movable block (322).

6. The aluminum-plastic casement window hinge with buffer pad according to claim 4, characterized in that, The piston rod (324) is fixedly connected to a spring (326) at one end inside the movable block (322), and the other end of the spring (326) is fixedly connected to the inner wall of the movable block (322).

7. The aluminum-plastic casement window hinge with buffer pad according to claim 2, characterized in that, The replacement component (330) includes a plug (331) fixedly installed on the side of the buffer pad (323) near the movable block (322), and a socket (332) is provided on the other side of the movable block (322). The plug (331) is fixedly engaged with the socket (332).

8. The aluminum-plastic casement window hinge with buffer pad according to claim 7, characterized in that, Multiple snap-fit ​​rings (333) are fixedly installed on the outer side of the insert (331), and the multiple snap-fit ​​rings (333) are equidistantly distributed.

Images