A self-returning hinge with limited angle and buffer

Abstract

The present invention discloses a self-returning hinge with limited angle and buffer, comprising a base plate, a rotating assembly mounted on the base plate, a buffer assembly mounted inside the rotating assembly, a mounting mechanism mounted on the rotating assembly, and the rotating assembly comprising a valve body, an axial hole a, an axial hole b, and a rotating shaft, wherein the axial hole a is arranged on both sides of the base plate surface. The present invention has the functions of buffered self-closing, 0-degree positioning, and 90-degree positioning. The self-closing clamp provides the door closing power by compressing the spring when opening the door, and the buffer provides the buffer force when closing the door to slow down the door closing and close the door slowly, thereby realizing the self-closing buffered door closing function. The effect of the spring and the buffer on the crankshaft structure of the rotating shaft is realized to realize the 0-degree and 90-degree positioning functions, thereby preventing the doors and windows from rotating and colliding with the wall, thereby avoiding damage to the doors and windows, and increasing the service life of the doors and windows. The angle overtravel of the hinge is protected by the crankshaft plane structure of the rotating shaft in conjunction with the limit screw.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a self-returning hinge with a limited angle and a buffer. Background Art

[0002] At present, the existing hinges are usually used to fix doors and windows and realize the opening and closing of doors and windows. When the door is opened with too much force, the doors and windows are easily damaged. In addition, the hinges do not have the functions of 0-degree positioning and 90-degree positioning, which causes the doors and windows to rotate easily and collide with the wall, causing damage to the doors and windows, affecting the service life of the doors and windows and causing great inconvenience to users. For this reason, we propose a self-returning hinge with a limited angle and a buffer. Summary of the Invention

[0003] The object of the present invention is to provide a self-returning hinge with a limited angle and a buffer to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a self-returning hinge with a limited angle and a buffer, comprising a base plate, a rotating assembly mounted on the base plate, a buffer assembly mounted inside the rotating assembly, and a mounting mechanism mounted on the rotating assembly;

[0005] The rotating assembly includes a valve body, an axis hole a, an axis hole b, and a rotating shaft. The axis hole a is provided on both sides of the bottom plate surface, the axis hole b is provided on the valve body, the valve body is provided on the top of the bottom plate, the rotating shaft is provided in the axis hole b, the end of the rotating shaft passes through the axis hole b and the axis hole a in sequence and extends to the outside of the axis hole a, the rotating shaft is fixedly connected to the bottom plate by a set screw, a shaft sleeve is provided on the end of the rotating shaft, and a cap is installed on the end of the shaft sleeve away from the rotating shaft;

[0006] The buffer assembly includes a buffer slider, a self-closing slider, an adjusting nut, a spring, and a buffer. The top of the valve body is provided with a channel 1 and a channel 2. The buffer slider is provided inside the channel 1, the buffer is provided on the top of the buffer slider, the two adjusting nuts are provided on the top of the spring and the buffer respectively, the self-closing slider is provided inside the channel 2, the spring is provided on the top of the self-closing slider, and the top of the valve body is provided with a screw cover plate for closing the channel 1 and the channel 2.

[0007] The mounting mechanism includes a gasket, a pressure plate, and a cover plate. The two gaskets are respectively mounted on the valve body and the pressure plate. The pressure plate, gasket, and valve body are fixedly connected by fixing screws. The cover plate is mounted on the outside of the pressure plate.

[0008] Furthermore, the bottom plate is fixed to the wall by screws, and the pressure plate fixes the door leaf and the valve body.

[0009] Furthermore, the valve body is centered on the rotation axis. When the valve body is perpendicular to the bottom plate mounting surface, the head of the self-closing slider on the spring is aligned with the section platform on the rotation axis under the pressure of the spring.

[0010] Furthermore, under the action of external force, the door leaf drives the valve body to rotate around the rotation axis, and the buffer sliding block on the buffer is squeezed by the rotation axis, compressing the buffer.

[0011] Furthermore, a slot is provided on the surface of the rotating shaft, a bottom cover is provided at the bottom of the valve body, a set screw is provided at the bottom of the bottom cover, and the head of the set screw is embedded in the slot to limit the rotation angle of the valve body around the rotating shaft.

[0012] Furthermore, the strength of the spring and the buffer is adjusted by adjusting the nut.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The functions of the present invention include buffered self-closing, 0-degree positioning, and 90-degree positioning. The self-closing clip provides closing power by compressing the spring when opening the door. The buffer provides buffering force when closing the door to slow down the closing of the door and close it slowly, thereby realizing the self-closing buffered door closing function. The effect produced by the spring and the buffer in the crankshaft structure of the rotating shaft is used to achieve the 0-degree and 90-degree positioning functions, preventing doors and windows from rotating and colliding with the wall, avoiding damage to doors and windows, and extending the service life of doors and windows. The crankshaft plane structure of the rotating shaft is used in combination with the limit screw to protect the hinge from overtravel, bringing great convenience to users.

[0015] 2. The present invention provides a slot in which the head of the set screw fixed on the valve body is embedded, thereby limiting the angle of rotation of the valve body around the rotation axis, thereby limiting the opening angle of the door leaf by limiting the relative rotation angle of the rotating component valve body and the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the decomposition structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the installation structure of the present invention;

[0018] Figure 3 It is a structural cross-sectional view of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the rotating shaft of the present invention.

[0020] In the figure: 1 base plate, 2 valve body, 3 positioning screw, 4 buffer slider, 5 self-closing slider, 6 adjusting nut, 7 spring, 8 gasket, 9 screw cover, 10 pressure plate, 11 cover, 12 cover cap, 13 sleeve, 14 rotating shaft, 15 bottom cover, 16 fixing screw, 17 set screw, 18 buffer, 19 marble pin, 20 shaft hole a, 21 shaft hole b, 22 channel 1, 23 channel 2, 24 slot. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of this application document, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying 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 of this patent. In the description of this application document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or connected or set as a whole. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0023] See also Figure 1-3 A self-returning hinge with a limited angle and a buffer comprises a base plate 1, a rotating component is mounted on the base plate 1, a buffer component is mounted inside the rotating component, and a mounting mechanism is mounted on the rotating component.

[0024] The rotating assembly includes a valve body 2, an axial hole a20, an axial hole b21, and a rotating shaft 14. The axial hole a20 is arranged on both sides of the surface of the base plate 1, the axial hole b21 is arranged on the valve body 2, the valve body 2 is arranged on the top of the base plate 1, and the rotating shaft 14 is arranged in the axial hole b21. The end of the rotating shaft 14 passes through the axial hole b21 and the axial hole a20 in sequence and extends to the outside of the axial hole a20. The rotating shaft 14 is fixedly connected to the base plate 1 by a set screw 17. A shaft sleeve 13 is provided on the end of the rotating shaft 14, and a cap 12 is installed on the end of the shaft sleeve 13 away from the rotating shaft 14.

[0025] The buffer assembly includes a buffer slider 4, a self-closing slider 5, an adjusting nut 6, a spring 7, and a buffer 18. The top of the valve body 2 is provided with a channel 1 22 and a channel 2 23. The buffer slider 4 is provided inside the channel 1 22. The buffer 18 is provided on the top of the buffer slider 4. Two adjusting nuts 6 are provided on the top of the spring 7 and the buffer 18 respectively. The self-closing slider 5 is provided inside the channel 2 23. The spring 7 is provided on the top of the self-closing slider 5. The top of the valve body 2 is provided with a screw cover plate 9 that closes the channel 1 22 and the channel 2 23. The valve body 2 is centered on the rotating shaft 14. The valve body 2 is installed with the bottom plate When the surface is vertical, the head of the self-closing slider 5 on the spring 7 matches the cross-sectional platform on the rotating shaft 14 under the pressure of the spring 7. Under the action of external force, the door leaf drives the valve body 2 to rotate around the rotating shaft 14, and the buffer slider 4 on the buffer 18 is squeezed by the rotating shaft 14, compressing the buffer 18. A slot 24 is provided on the surface of the rotating shaft 14, and a bottom cover plate 15 is provided at the bottom of the valve body 2. A set screw 17 is provided at the bottom of the bottom cover plate 15, and the head of the set screw 17 is embedded in the slot 24 to limit the rotation angle of the valve body 2 around the rotating shaft 14. The spring 7 and the buffer 18 adjust the force by adjusting the nut 6.

[0026] The installation mechanism includes a gasket 8, a pressure plate 10, and a cover plate 11. The two gaskets 8 are respectively installed on the valve body 2 and the pressure plate 10. The pressure plate 10, the gasket 8 and the valve body 2 are fixedly connected by fixing screws 16. The cover plate 11 is installed on the outside of the pressure plate 10. The base plate 1 is fixed to the wall by screws. The pressure plate 10 fixes the door leaf to the valve body 2.

[0027] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in actual process is described in detail below.

[0028] When in use, when the valve body 2 is centered on the rotating shaft 14 and is perpendicular to the mounting surface of the bottom plate 1, the head of the self-closing slider 5 of the spring 7 is aligned with the tangential platform on the rotating shaft 14 under the pressure of the spring 7, and the plane contacts the plane, and the relative position is stable. At this time, the position hinge is at zero degree position, and the door leaf is in a closed state; the bottom plate 1 and the rotating shaft 14 are fixed to the wall. When an external force pushes the door leaf, it is fixed. At this time, the door leaf drives the valve body 2 to rotate around the rotating shaft 14, and the head of the self-closing slider 5 of the spring 7 moves from one While gradually leaving the corresponding section platform on the rotating shaft 14, the spring 7 is gradually compressed. At this time, the head of the self-closing slider 5 is in line contact with the section platform, and the contact line deviates from the central axis of the self-closing slider 5. The reaction force of the spring 7 is transmitted to the self-closing slider 5. Through the lever effect, after the external force on the door leaf disappears, the valve body 2 will be pushed to rotate back around the rotating shaft 14 until the plane of the head of the self-closing slider 5 coincides with the section plane on the rotating shaft 14, reaching a stable state, the hinge returns to the zero position, and the door leaf is closed.

[0029] When the door leaf drives the valve body 2 to rotate around the rotating shaft 14 under the action of external force, the buffer slider 4 at the head of the buffer 18 inside the valve body 2 is squeezed by the corresponding platform on the rotating shaft, compressing the buffer 18. At this time, the buffer 18 has a damping effect on the buffer slider 4, offsetting and buffering part of the door opening force, preventing excessive door opening force from damaging the door and window; a slot 24 is provided in the middle of the rotating shaft, and the head of the positioning screw 3 fixed to the valve body 2 is embedded in the slot 24, limiting the angle of rotation of the valve body 2 around the rotating shaft 14, thereby limiting the opening angle of the door leaf by limiting the relative rotation angle of the rotating component valve body 2 and base plate 1. The spring 7 and buffer 18 adjust the force through the adjusting nut 6. All the moving mechanisms of the product are hidden inside the rotating component, with a simple and beautiful appearance.

[0030] All components in the present invention are universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, the standard parts used in this application document can be purchased on the market. Each component in this application document can be customized according to the description and drawings. The specific connection method of each part adopts conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0031] 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-returning hinge with a limited angle and a buffer, comprising a base plate (1), characterized in that: A rotating assembly is mounted on the bottom plate (1), a buffer assembly is mounted inside the rotating assembly, and a mounting mechanism is mounted on the rotating assembly; The rotating assembly comprises a valve body (2), an axial hole a (20), an axial hole b (21), and a rotating shaft (14); the axial hole a (20) is arranged on both sides of the surface of the base plate (1); the axial hole b (21) is arranged on the valve body (2); the valve body (2) is arranged on the top of the base plate (1); the rotating shaft (14) is arranged in the axial hole b (21); the end of the rotating shaft (14) passes through the axial hole b (21) and the axial hole a (20) in sequence and extends to the outside of the axial hole a (20); the rotating shaft (14) is fixedly connected to the base plate (1) by a set screw (17); a shaft sleeve (13) is arranged on the end of the rotating shaft (14); a cover cap (12) is installed on the end of the shaft sleeve (13) away from the rotating shaft (14); The buffer assembly comprises a buffer slider (4), a self-closing slider (5), an adjusting nut (6), a spring (7), and a buffer (18); a channel 1 (22) and a channel 2 (23) are arranged on the top of the valve body (2); the buffer slider (4) is arranged inside the channel 1 (22); the buffer (18) is arranged on the top of the buffer slider (4); the two adjusting nuts (6) are arranged on the top of the spring (7) and the buffer (18) respectively; the self-closing slider (5) is arranged inside the channel 2 (23); the spring (7) is arranged on the top of the self-closing slider (5); and a screw cover plate (9) is arranged on the top of the valve body (2) for closing the channel 1 (22) and the channel 2 (23); The mounting mechanism comprises a gasket (8), a pressure plate (10), and a cover plate (11); the two gaskets (8) are respectively mounted on the valve body (2) and the pressure plate (10); the pressure plate (10), the gasket (8) and the valve body (2) are fixedly connected via fixing screws (16); the cover plate (11) is mounted on the outer side of the pressure plate (10); the bottom plate (1) is fixed to the wall via screws; the pressure plate (10) fixes the door leaf to the valve body (2); a groove (24) is provided on the surface of the rotating shaft (14); a bottom cover plate (15) is provided at the bottom of the valve body; a set screw (17) is provided at the bottom of the bottom cover plate (15); the head of the set screw (17) is embedded in the groove (24) to limit the angle of rotation of the valve body (2) around the rotating shaft (14).

2. The self-returning hinge with limited angle and buffer according to claim 1, characterized in that: The valve body (2) is centered on the rotation axis (14). When the valve body (2) is perpendicular to the bottom plate mounting surface, the head of the self-closing slider (5) on the spring (7) fits into the section platform on the rotation axis (14) under the pressure of the spring (7).

3. The self-returning hinge with limited angle and buffer according to claim 2, characterized in that: Under the action of external force, the door leaf drives the valve body (2) to rotate around the rotation axis (14), and the buffer slider (4) on the buffer (18) is squeezed by the rotation axis (14), thereby compressing the buffer (18).

4. The self-returning hinge with limited angle and buffer according to claim 3, characterized in that: The spring (7) and the buffer (18) are adjusted in force by means of an adjusting nut (6).

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