Hinge with buffer

Abstract

The present invention discloses a hinge with a buffer, comprising a movable valve body and a fixed valve body, wherein one end of the movable valve body is connected to one end of the fixed valve body by a rotating shaft, the movable valve body comprises a slider, a pressure wheel and a spring sheet, the pressure wheel is connected to the slider, the pressure wheel can rotate in the slider, one end of the pressure wheel protrudes from the upper surface of the slider, the lower surface of the slider is provided with the spring sheet, the surface of the rotating shaft is provided with a plurality of arc-shaped grooves, the slider is provided at the bottom end of the rotating shaft, the pressure wheel contacts the surface of the rotating shaft, a convex block is provided on the surface of the movable valve body, the fixed valve body comprises a buffer and a swing hook, one end of the buffer is connected to the fixed valve body, the other end of the buffer is provided with a movable rod, the movable rod is connected to the lower end of the swing hook, the other end of the swing hook is connected to the fixed valve body, the surface of the swing hook is provided with a linkage groove, and the convex block of the movable valve body can be embedded in the linkage groove of the swing hook.

Description

Technical Field

[0001] The invention relates to the field of hinges, and in particular to a hinge provided with a buffer capable of reducing the closing speed when closing doors and windows. Background Art

[0002] Common hinges on the market generally use metal springs as a power mechanism to push the hinges to open or close doors and windows. However, the metal springs used as a power mechanism have poor buffering performance for doors and windows. After a long period of use, the elasticity of the metal springs is easily reduced, affecting the use effect of the product. Installing a buffer structure in the hinge, the common micro-pneumatic / hydraulic buffer that can be hidden inside the hinge cannot be directly used for door and window hinges that require a large force for opening and closing doors due to its small force. It cannot achieve the effect of reducing the buffering of doors and windows. If the buffering force is too large when opening and closing doors and windows, it will cause damage to the doors and windows and the accessories in the hinges. This is the main disadvantage of traditional technology. Summary of the invention

[0003] The problem solved by the present invention is that the buffering performance between the movable valve body and the fixed valve body of the hinge is poor. A buffer with a small volume and small damping is installed and used in the hinge, and the buffering effect of a buffer with a large volume and large damping is achieved by forming a lever principle between the swing hook and the buffer. At the same time, since the built-in buffer has a small volume, the overall outer size of the hinge can be effectively reduced.

[0004] To achieve the above-mentioned purpose, the present invention provides a hinge with a buffer, comprising a movable valve body and a fixed valve body, one end of the movable valve body is connected to one end of the fixed valve body by a rotating shaft, the movable valve body comprises a slider, a pressure wheel and a spring sheet, the pressure wheel is connected to the sliding, the pressure wheel can rotate in the slider, one end of the pressure wheel protrudes from the upper surface of the slider, the lower surface of the slider is provided with the spring sheet, the surface of the rotating shaft is provided with a plurality of arc-shaped grooves, the slider is provided at the bottom end of the rotating shaft, the pressure wheel contacts the surface of the rotating shaft, a convex block is provided on the surface of the movable valve body, the fixed valve body comprises a buffer and a swing hook, one end of the buffer is connected to the fixed valve body, the other end of the buffer is provided with a movable rod, the movable rod is connected to the lower end of the swing hook, the other end of the swing hook is connected to the fixed valve body, the surface of the swing hook is provided with a linkage groove, and the convex block of the movable valve body can be embedded in the linkage groove of the swing hook.

[0005] The technical effects and advantages of the present invention are as follows: a buffer with a smaller volume and damping is adopted, and a lever structure is formed by the buffer and the swing hook as a buffer component to output a larger resistance. When closing the door and window, when the angle of the hinge reaches a specified angle, the buffer component starts to work and reduces the closing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a stereogram of the present invention.

[0007] Figure 2 It is a schematic diagram of the decomposition structure of the present invention.

[0008] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0009] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention.

[0010] Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating shaft, the pressure wheel, the sliding block and the spring sheet of the present invention.

[0011] Figure 6 It is a schematic diagram of the cross-sectional structure of the buffer and the swing hook of the present invention.

[0012] Figure 7 It is a schematic diagram of the open state 1 between the movable valve body and the fixed valve body of the present invention.

[0013] Figure 8 It is a schematic diagram of the open state 2 between the movable valve body and the fixed valve body of the present invention.

[0014] Fig. 9 It is a schematic diagram of the open state 3 between the movable valve body and the fixed valve body of the present invention.

[0015] Fig.10 It is a schematic diagram of the opening to closing between the movable valve body and the fixed valve body of the present invention.

[0016] Reference numerals: movable valve body 10; fixed valve body 20; rotating shaft 30; flat-end set screw 1; arc groove 31; slider 11; pressure wheel 12; spring sheet 13; shaft 2; buffer 21; swing hook 22; convex block 111; linkage groove 221; DETAILED DESCRIPTION

[0017] like Figures 1 to 10 As shown, a hinge with a buffer includes a movable valve body 10 and a fixed valve body 20. One end of the movable valve body 10 is connected to one end of the fixed valve body 20 through a rotating shaft 30. When in use, the movable valve body 10 is connected to the door and window, and the fixed valve body 20 is connected to the fixed frame.

[0018] The rotating shaft 30 is connected to the movable valve body 10 via a flat-end set screw 1 . A plurality of arc-shaped grooves 31 are provided on the surface of the rotating shaft 30 . The angles between the arc-shaped grooves 31 are 90°.

[0019] The movable valve body 10 includes a slider 11, a pressure wheel 12 and a spring sheet 13. The slider 11 is provided with a groove, and the pressure wheel 12 is arranged in the groove. The pressure wheel 12 is connected to the side walls at both ends of the groove through the shaft 2, so that the pressure wheel 12 is connected to the slider 11. The pressure wheel 12 can rotate in the slider 11, and one end of the pressure wheel 12 protrudes from the upper surface of the slider 11.

[0020] The slider 11 is disposed at the bottom end of the rotating shaft 30 , and the pressing wheel 12 is in contact with the surface of the rotating shaft 30 .

[0021] The spring sheet 13 is disposed on the lower surface of the slider 11 , and the other end of the spring sheet 13 is connected to the movable valve body 10 via a screw.

[0022] One end of the spring sheet 13 presses against the slider 11, pushing the pressure wheel 12 to squeeze the rotating shaft 30. When the pressure wheel 12 just enters the arc groove 31, it contacts and squeezes the edge of the arc groove 31, and the tangential force pushes the rotating shaft 30 to rotate. The rotating shaft 30 rotates until the pressure wheel 12 rolls to the bottom of the arc groove 31. The pressure of the pressure wheel 12 on the arc groove 31 and the reaction force it receives are in a straight line, and the relative position of the pressure wheel 12 and the arc groove 31 is in a stable state. At this time, the hinge is in a normally closed state, and the relative position of the movable valve body 10 and the fixed valve body 20 is 180°.

[0023] When external force pushes the movable valve body 10 of the door and window, the movable valve body 10 interactive components on the hinge rotate, and the rotating shaft 30 is also rotated. The radial force on the pressure wheel 12 is greater than the pressure on the spring sheet 13 through the lower end of the slider 11, so that it is pushed out of the original arc groove 31 and then rolls on the surface of the rotating shaft 30 until it rolls into the bottom of another arc groove 31 on the surface of the rotating shaft 30. The pressure of the pressure wheel 12 on the arc groove 31 and the reaction force it receives are in a straight line, and the relative position of the pressure wheel 12 and the arc groove 31 is in a stable state. At this time, the hinge is in a normally open state, and the relative position of the movable valve body 10 and the fixed valve body 20 is 90°.

[0024] After the hinge is installed, due to the problem of the reference surface on site or the installation problem, the relative position of the movable valve body 10 and the fixed valve body 20 may be greater than or less than 180° when the hinge is in the closed state.

[0025] At this time, the flat-end set screw 1 on the movable valve body 10 can be loosened, the rotating shaft 30 can be loosened, and the movable valve body 10 can be rotated by external force. After the relative position between the movable valve body 10 and the fixed valve body 20 is 180°, the flat-end set screw 1 can be re-tightened to re-fix the rotating shaft 30 and the movable valve body 10 as one. At this time, the closing angle of the door leaf when closed is 180°, and the movable valve body 10 and the fixed valve body 20 are in the same plane.

[0026] The fixed valve body 20 includes a buffer 21 and a swing hook 22. One end of the buffer 21 is connected to the fixed valve body 20 through a rivet. The other end of the buffer 21 is provided with a movable rod 211. The movable rod 211 is connected to the lower end of the swing hook 22 through a rivet. The other end of the swing hook 22 is connected to the fixed valve body 20 through a rivet. At this time, the swing hook 22 is equivalent to a special-shaped lever.

[0027] A protrusion 111 is disposed on a surface of the movable valve body 10 facing the fixed valve body 20 .

[0028] A linkage groove 221 is formed on a surface of the swing hook 22 facing the movable valve body 10 , and the protrusion 111 of the movable valve body 10 can be embedded in the linkage groove 221 of the swing hook 22 .

[0029] When the hinge is opened, the projection 111 of the movable valve body 10 and the swing hook 22 are relatively displaced, causing the swing hook 22 to rotate around the lever fulcrum formed with the rivet, and one end of the swing hook 22 pushes the movable rod 211 to retract into the buffer 21. At this time, the one-way valve of the buffer 21 opens to discharge the gas / liquid in the cylinder, and the movable rod 211 has no resistance. The projection 111 of the movable valve body 10 is disengaged from the linkage groove 221 of the swing hook 22, and then the movable rod 211 continues to open, and the state of the buffer 21 remains stable.

[0030] When the hinge is closed, the projection 111 of the movable valve body 10 and the linkage groove 221 of the swing hook 22 are separated and then begin to contact. When both sides are separated, the door and window are closed without resistance.

[0031] When the protrusion 111 of the movable valve body 10 begins to fit into the linkage groove 221 of the swing hook 22, the swing hook 22 is driven to rotate, pulling the movable rod 211 of the buffer 21. At this time, the one-way valve of the buffer 21 is closed, a vacuum is formed in the cavity, and the movable rod 211 applies resistance to the protrusion 111 of the movable valve body 10 through the swing hook 22, slowing down the closing speed until the closing angle of the door and window is 180°, the movable valve body 10 and the fixed valve body 20 are in the same plane, and the door and window are closed.

[0032] The design structure of the lever arm of the swing hook 22 can amplify the force of the micro air pressure / hydraulic buffer so that it can have greater damping to delay the closing action of larger doors and windows.

[0033] The buffer 21 starts to output resistance only when the protrusion 111 of the movable valve body 10 starts to fit into the linkage groove 221 of the swing hook 22. Through different design schemes of the force points and curved surfaces of the swing hook 22, the specific position where the protrusion 111 of the movable valve body 10 starts to fit into the linkage groove 221 of the swing hook 22 can be set, thereby setting the hinge closing angle when the buffer 21 starts to output resistance.

[0034] In summary, in order to safely close doors and windows and prevent damage to the hinges, the hinges provided with buffers of the present invention use the buffer 21 and the swing hook 22 to form a lever structure as a buffer component. When closing the doors and windows, when the angle of the hinge reaches a specified angle, the buffer component starts to work and reduces the closing speed.

Claims

1. A hinge with a buffer, characterized in that: It comprises a movable valve body (10) and a fixed valve body (20), wherein one end of the movable valve body (10) is connected to one end of the fixed valve body (20) via a rotating shaft (30). The movable valve body (10) comprises a slider (11), a pressure wheel (12) and a spring sheet (13); the pressure wheel (12) is connected to the slider (11); the pressure wheel (12) is rotatable in the slider (11); one end of the pressure wheel (12) protrudes from the upper surface of the slider (11); the spring sheet (13) is provided on the lower surface of the slider (11); The surface of the rotating shaft (30) is provided with a plurality of arc-shaped grooves (31), the sliding block (11) is provided at the bottom end of the rotating shaft (30), and the pressing wheel (12) is in contact with the surface of the rotating shaft (30). A protrusion (111) is provided on the surface of the movable valve body (10). The fixed valve body (20) comprises a buffer (21) and a swing hook (22), one end of the buffer (21) being connected to the fixed valve body (20), the other end of the buffer (21) being provided with a movable rod (211), the movable rod (211) being connected to the lower end of the swing hook (22), and the other end of the swing hook (22) being connected to the fixed valve body (20). A linkage groove (221) is provided on the surface of the swing hook (22), and the protrusion (111) of the movable valve body (10) can be embedded in the linkage groove (221) of the swing hook (22).

2. The hinge with a buffer according to claim 1, characterized in that: The sliding block (11) is provided with a groove, the pressing wheel (12) is arranged in the groove, and the pressing wheel (12) is connected to the side walls at both ends of the groove via a shaft (2).

3. The hinge with a buffer according to claim 1, characterized in that: The rotating shaft (30) is connected to the movable valve body (10) via a flat-end set screw (1).

4. The hinge with a buffer according to claim 1, characterized in that: One end of the buffer (21) is connected to the fixed valve body (20) via a rivet.

5. The hinge with a buffer according to claim 1, characterized in that: The movable rod (211) is connected to the lower end of the swing hook (22) via a rivet.

6. The hinge with a buffer according to claim 5, characterized in that: The other end of the swing hook (22) is connected to the fixed valve body (20) via a rivet.

7. The hinge with a buffer according to claim 1, characterized in that: The angle between the arc-shaped grooves (31) is 90°.

Images