Safety automatic closing hinge with buffer

Abstract

The application discloses a kind of buffer safety automatic door closing hinges, including fixed seat, with the hinge of movable seat of fixed seat, be located in the elastic member of fixed seat, be located in the damping member of movable seat, and the connecting piece of connecting elastic member and damping member;Connecting piece includes connecting head, connecting rod and damping connector, connecting head is hinged with fixed seat, one end of connecting head is connected with elastic member by connecting rod, the other end of connecting head is connected with damping member by damping connector;Fixed seat and movable seat are equipped with hinged shaft, the rotation axis of hinged shaft and connecting piece is not collinear.The hinged shaft of fixed seat and movable seat of the application and the rotation axis of connecting piece are not collinear, so that elastic member and damping member obtain larger running stroke, buffering is more sensitive, reliable, improve the security of closing door.

Description

[0001] This application is a divisional application with the application date of "2021.07.16", application number "202110808341.1", and application title "A Buffered Safety Automatic Door Closing Hinge". Technical Field

[0002] This invention relates to the field of hinge equipment technology, and in particular to a buffered, safe, automatic closing hinge. Background Technology

[0003] Existing shower enclosures typically use hinged doors with dampers. However, the springs and dampers of these hinged doors travel in sync. When the travel is short, the damper is unlikely to function, resulting in ineffective buffering when the door closes. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a buffered, safe, automatic door closing hinge that increases the stroke of the damping element and improves the safety of door closing.

[0005] A buffered safety automatic door closing hinge according to a first aspect of the present invention includes a fixed base, a movable base hinged to the fixed base, an elastic element disposed within the fixed base, a damping element disposed within the movable base, and a connector connecting the elastic element and the damping element; the connector includes a connector head, a connecting rod, and a damping joint, the connector head being hinged to the fixed base, one end of the connector head being connected to the elastic element via the connecting rod, and the other end of the connector head being connected to the damping element via the damping joint; a hinge shaft is provided between the fixed base and the movable base, and the hinge shaft is not collinear with the rotation axis of the connector.

[0006] A buffer-safe automatic door closing hinge according to an embodiment of the present invention has at least the following beneficial effects:

[0007] By setting an elastic element in the fixed seat and a damping element in the movable seat, and connecting the elastic element and the damping element through a connector, the connector is hinged to the fixed seat. A hinge shaft is provided between the fixed seat and the movable seat, and the rotation axis of the hinge shaft is not collinear with that of the connector. This allows the elastic element and the damping element to obtain a larger running stroke, making the buffering more sensitive and reliable, and improving the safety of closing the door.

[0008] According to some embodiments of the present invention, the fixed base is provided with a mounting groove, and the elastic element includes a spring disposed in the mounting groove and a push rod sleeved in the spring; the push rod is detachably connected to the connecting rod.

[0009] According to some embodiments of the present invention, an adjusting screw is provided between the elastic element and the fixed base, and the adjusting screw can adjust the initial elastic force of the elastic element.

[0010] According to some embodiments of the present invention, the damping element includes a one-way damping cylinder connected to the movable seat and a damping rod, the damping rod being detachably connected to the damping joint.

[0011] According to some embodiments of the present invention, the fixed base is provided with two hinge seats arranged opposite to each other, and a connecting seat disposed between the two hinge seats; the hinge seats and the connecting seat are offset; the connecting seat is disposed between the two hinge seats, and the connecting head is connected to the connecting seat.

[0012] According to some embodiments of the present invention, the movable seat is provided with a hinge joint adapted to the hinge seat, and the hinge joint is provided with a limiting plate.

[0013] According to some embodiments of the present invention, pressure plates are connected to the bottom surfaces of both the fixed seat and the movable seat; decorative covers are provided on the top surfaces of the fixed seat and the movable seat; rubber pads and rubber pad covers are provided between the fixed seat and the pressure plate, and between the movable seat and the pressure plate.

[0014] According to some embodiments of the present invention, a first connecting shaft is provided between the connector and the fixed base, a second connecting shaft is provided between the connector and the connecting rod, and a third connecting shaft is provided between the connector and the damping joint; the fixed base is provided with an adjusting waist-shaped hole, the length direction of the waist-shaped hole being orthogonal to the axial direction of the first connecting shaft.

[0015] According to some embodiments of the present invention, a fine-tuning component is provided in the adjusting waist-shaped hole; the fine-tuning component includes a first elastic adjusting member and a second elastic adjusting member disposed opposite to each other, and the first connecting shaft is disposed between the first elastic adjusting member and the second elastic adjusting member.

[0016] According to some embodiments of the present invention, the first elastic adjusting member and the second elastic adjusting member can adjust the position of the first connecting shaft to push the connecting rod and the damping joint to slide along their respective axes.

[0017] According to some embodiments of the present invention, both the first elastic adjusting member and the second elastic adjusting member include an arc-shaped abutment plate, the arc-shaped abutment plate abutting against the first connecting shaft; an adjusting rod is provided on the arc-shaped abutment plate, the adjusting rod passing through the connecting seat and fixed with a nut, and a compression spring is provided between the arc-shaped abutment plate and the adjusting waist-shaped hole.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is an exploded view of the buffer safety automatic closing hinge that relates to the present invention;

[0021] Figure 2 This is a cross-sectional view of the closed state of the buffer safety automatic closing hinge involved in this invention;

[0022] Figure 3 This is a cross-sectional view of the open state of the buffer safety automatic closing hinge of the present invention;

[0023] Figure 4 This is a schematic diagram of the connector involved in the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the fine-tuning component involved in this invention;

[0025] Figure 6 This is another embodiment of the invention relating to adjusting the speed of door opening. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] See Figure 1 and Figure 2The present invention provides a buffer safety automatic closing hinge, including a fixed base 1, a movable base 2 hinged to the fixed base 1, an elastic element 3 disposed in the fixed base 1, a damping element 4 disposed in the movable base 2, and a connecting element 5 connecting the elastic element 3 and the damping element 4.

[0031] The connector 5 includes a connector 51 hinged to the fixed base 1, a connecting rod 52 connecting the elastic member 3 and the connector 51, and a damping joint 53 connecting the damping member 4 and the connector 51.

[0032] A hinge shaft 6 is provided between the fixed seat 1 and the movable seat 2. The hinge shaft 6 is not collinear with the rotation axis 7 of the connecting piece 5.

[0033] Specifically, the fixed seat 1 is connected to the fixed door leaf 105, and the movable seat 2 is connected to the movable door leaf 106. When the movable door leaf 106 rotates to open, the damping element 4 located in the movable seat 2 is stretched, pushing the connecting head 51 connected through the damping joint 53 to rotate. The rotation of the connecting head 51 pushes the connecting rod 52 to compress the elastic element 3 to store energy. During the entire process of the movable door leaf 106 rotating to close, the elastic element 3 releases its elastic force, which pushes the connecting head 51 to rotate through the connecting rod 52, thereby pushing the door to close automatically. During the closing process, the connecting head 51 compresses the damping element 4 through the damping joint 53, causing it to generate a damping force. The damping force will offset part of the elastic force, providing buffering and improving the safety of closing the door. To avoid the problems of damaging the hinge shaft 6 structure, making processing difficult, and having too small a stroke for the elastic element 3 and damping element 4 caused by directly driving the elastic element 3 and damping element 4 through the hinge shaft 6 of the fixed seat 1 and the movable seat 2, the present invention sets the hinge shaft 6 and the connecting element 5 independently. By ensuring that the hinge shaft 6 and the rotation axis 7 of the connecting member 5 are not collinear, the elastic member 3 and the damping member 4 can obtain a larger stroke, making the buffer more sensitive; at the same time, the integrity of the hinge shaft 6 will not be damaged, thereby reducing the processing cost.

[0034] See Figure 2 Furthermore, the connector 51 is connected to the fixed base 1, the elastic element 3, and the damping element 4 via the first connecting shaft 8a, the second connecting shaft 8b, and the third connecting shaft 8c, respectively. The distance between the first connecting shaft 8a and the second connecting shaft 8b is less than the distance between the first connecting shaft 8a and the third connecting shaft 8c. When the connector 51 rotates around the first connecting shaft 8a, the movement trajectory of the second connecting shaft 8b is not parallel to the movement trajectory of the third connecting shaft 8c, so that the horizontal travel of the connecting rod 52 and the damping connector 53 is different. Specifically, the travel of the elastic element 3 is less than the travel of the damping element 4. In this embodiment, the travel of the damping element 4 is greater than the travel of the elastic element 3, approximately 1.5-2 times the travel of the elastic element 3, to increase the travel of the damping element 4, thereby improving the reliability and service life of the damping element 4.

[0035] See Figure 4In this embodiment, the connector 51 is a bent plate, with a first connecting shaft 8a located at the bend of the bent plate. The bent plate includes a short side 511 and a long side 512. A second connecting shaft 8b is located on the short side 511 of the connector 51, and a third connecting shaft 8c is located on the long side 512 of the connector 51. Specifically, the connector 51 is a bent plate, with the first connecting shaft 8a located at the bend of the bent plate, the second connecting shaft 8b located on the short side 511, and the third connecting shaft 8c located on the long side 512. This ensures that the rotation radii of the second connecting shaft 8b and the third connecting shaft 8c are different, thereby making the stroke of the damping member 4 greater than the stroke of the elastic member 3.

[0036] Furthermore, the bending plate is a concave plate, and the angle between the long side 512 and the short side 511 is 80°-105°. The concave plate is used to prevent motion interference between the connector 51 and the fixed seat 1 and the movable seat 2 when the connector 51 rotates. The angle between the long side 512 and the short side 511 is 80°-105°, and reinforcing ribs are provided between the long side 512 and the short side 511 to increase the connection strength between them and improve the service life of the connector 51.

[0037] See Figure 2 The fixed base 1 has a mounting groove 11. The elastic element 3 includes a spring 31 disposed in the mounting groove 11 and a push rod 32 sleeved with the spring 31. The push rod 32 is detachably connected to the connecting rod 52. Specifically, one end of the spring 31 abuts against the mounting groove 11, and the other end abuts against the push rod 32. The push rod 32 has a sleeve rod 321 and a mounting base 322. The sleeve rod 321 is sleeved inside the spring 31 to prevent the spring 31 from bending and deforming, which would affect the normal use of the elastic element 3. The mounting base 322 has a mounting hole 323 adapted to the connecting rod 52. In addition, the number of springs 31 can be set to multiple as needed.

[0038] See Figure 3 The damping element 4 includes a one-way damping cylinder 41 connected to the movable seat 2 and a damping rod 42, which is detachably connected to the damping joint 53. Specifically, the damping element 4 used in this device is a one-way damping element 4. When subjected to tension, the damping element 4 does not generate resistance. When subjected to compression, the damping element 4 generates damping to absorb the kinetic energy of the closing door, thereby achieving buffered closing.

[0039] See Figure 1The fixed base 1 has two hinge seats 12 arranged opposite each other, and the movable base 2 has a hinge joint 21 adapted to the hinge seats 12. The hinge joint 21 has a limiting part 211. Specifically, the two hinge seats 12 are respectively connected to the corresponding hinge joints 21 through hinge shafts 6. The fixed base 1 also has a connecting seat 13 located between the two hinge seats 12. The connecting seat 13 is used to install the connector 51. The hinge seats 12 and the connecting seat 13 are staggered so that the rotation axis of the fixed base 1 and the movable base 2 is not collinear with the rotation axis of the connector 5. The connecting seat 13 is located between the two hinge seats 12, so that the structure of the hinge shaft 6 will not be damaged by the setting of the elastic element 3 and the damping element 4, and motion interference will not occur.

[0040] See Figure 5 To facilitate adjustment of the elastic force of the elastic element 3 and thus regulate the speed of door opening and closing, the fixed base 1 is provided with an adjustment waist-shaped hole 14, and a fine-tuning component 9 is provided inside the adjustment waist-shaped hole 14. The fine-tuning component 9 includes a first elastic adjustment element 9a and a second elastic adjustment element 9b arranged opposite to each other, and a first connecting shaft 8a is located between the first elastic adjustment element 9a and the second elastic adjustment element 9b. Both the first elastic adjustment element 9a and the second elastic adjustment element 9b include an arc-shaped abutment plate 91, which abuts against the first connecting shaft 8a. An adjustment rod 92 is provided on the arc-shaped abutment plate 91, which passes through the connecting base 13 and is fixed with a nut 93. A compression spring 94 is provided between the arc-shaped abutment plate 91 and the adjustment waist-shaped hole 14 to provide a clamping force to the arc-shaped abutment plate 91. Specifically, the length direction of the oblong hole 14 is orthogonal to the axial direction of the first connecting shaft 8a. Both the first elastic adjusting member 9a and the second elastic adjusting member 9b can be adjusted along the length direction of the oblong hole 14. Furthermore, the force exerted on the arc-shaped abutment plate 91 by the corresponding compression spring 94 and the locking force between the corresponding adjusting rod 92 and the nut 93 are balanced. By adjusting the compression amount of the compression spring 94 of the first elastic adjusting member 9a and the second elastic adjusting member 9b, the position of the first connecting shaft 8a is adjusted. When the position of the first connecting shaft 8a changes, the positions of the connecting rod 52 and the damping joint 53 also change accordingly. The initial compression amount of the elastic member 3 and the initial position of the damping rod 42 change synchronously, thereby adjusting the elastic force of the elastic member 3 when the door is opened and closed.

[0041] See Figure 6 As a second implementation method for adjusting the speed of door opening, an adjusting screw 107 is provided between the elastic element 3 and the fixed base 1. The adjusting screw 107 is connected to the elastic element 3 to adjust the initial position of the elastic element 3, thereby adjusting the speed of door opening and closing.

[0042] See Figure 1 Both the fixed seat 1 and the movable seat 2 have pressure plates 10 connected to their bottom surfaces. The pressure plates 10 prevent the elastic element 3 and the damping element 4 from coming off. The pressure plates 10 are located on the back of the movable door leaf 106 and the fixed door leaf 105.

[0043] Rubber pads 101 and rubber pad covers 102 are provided between the fixed seat 1 and the pressure plate 10, and between the movable seat 2 and the pressure plate 10. The rubber pads 101 allow for soft contact between the hinge and the fixed door leaf 105 and the movable door leaf 106, preventing damage to the fixed door leaf 105 and the movable door leaf 106 due to excessive clamping force.

[0044] The top surfaces of the fixed base 1 and the movable base 2 are provided with decorative covers 103. The decorative covers 103 are connected to the pressure plate 10 by screws.

[0045] The outer side of the rubber pad cover 102 is provided with a rubber strip 20, and the rubber strip 20 is provided with an insertion part 201, and the insertion part 201 is provided with a cut 202. Specifically, the fixed seat 12 is connected to the fixed door leaf 105, and the movable seat 2 is connected to the movable door leaf 106. The rubber strip 20 is stuck in the gap between the fixed door leaf 105 and the movable door leaf 106. The insertion part 201 is inserted into the gap. In order to avoid interference with the fixed seat 1 and the movable seat 2, the insertion part 201 is provided with a cut 202 that matches the position of the fixed seat and the sliding seat, so as to achieve waterproofing without affecting the opening and closing of the door.

[0046] In summary, this invention improves the stroke of the elastic element 3 and damping element 4 by providing an elastic element 3 in the fixed seat 1 and a damping element 4 in the movable seat 2, and connecting the elastic element 3 and damping element 4 by a connecting element 5. The connecting element 5 is hinged to the fixed seat 1, and the fixed seat 1 is hinged to the movable seat 2. The axis of the hinge axis 6 between the fixed seat 1 and the movable seat 2 is misaligned with the hinge axis 7 between the connecting element 5 and the fixed seat 1. Furthermore, by making the distance between the first connecting shaft 8a and the second connecting shaft 8b smaller than the distance between the first connecting shaft 8a and the third connecting shaft 8c, when the connector 51 rotates around the first connecting shaft 8a, the movement trajectory of the second connecting shaft 8b is different from the movement stroke of the third connecting shaft 8c. The stroke of the elastic element 3 is less than the stroke of the damping element 4, where the stroke of the elastic element 3 is approximately 7mm-8mm and the stroke of the damping element 4 is approximately 12mm-15mm, thereby improving the stroke of the damping element 4 and thus enhancing its reliability and service life.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A buffer-safe automatic door closing hinge, characterized in that, It includes a fixed base, a movable base hinged to the fixed base, an elastic element disposed within the fixed base, a damping element disposed within the movable base, and a connecting element connecting the elastic element and the damping element; The connector includes a connector head, a connecting rod, and a damping joint. The connector head is hinged to the fixed base. One end of the connector head is connected to the elastic element through the connecting rod, and the other end of the connector head is connected to the damping element through the damping joint. A hinge shaft is provided between the fixed seat and the movable seat, and the hinge shaft is not collinear with the rotation axis of the connecting member; A first connecting shaft is provided between the connector and the fixed base, a second connecting shaft is provided between the connector and the connecting rod, and a third connecting shaft is provided between the connector and the damping joint. The connector is connected to the fixed base, the elastic element, and the damping element through the first connecting shaft, the second connecting shaft, and the third connecting shaft, respectively. The distance between the first connecting shaft and the second connecting shaft is less than the distance between the first connecting shaft and the third connecting shaft. The connector is a bent plate, and the first connecting shaft is located at the bend of the bent plate.

2. The buffered safety automatic closing hinge as described in claim 1, characterized in that, The fixed base is provided with a mounting groove, and the elastic element includes a spring provided in the mounting groove and a push rod sleeved in the spring; The push rod is detachably connected to the connecting rod.

3. The buffered safety automatic closing hinge as described in claim 2, characterized in that, An adjusting screw is provided between the elastic element and the fixed base, and the adjusting screw can adjust the initial elastic force of the elastic element.

4. The buffered safety automatic closing hinge as described in claim 1, characterized in that, The damping component includes a one-way damping cylinder connected to the movable seat and a damping rod, wherein the damping rod is detachably connected to the damping joint.

5. The buffered safety automatic closing hinge as described in claim 4, characterized in that, The fixed base is provided with two hinge seats arranged opposite each other, and a connecting seat disposed between the two hinge seats; The hinged seat and the connecting seat are misaligned; The connecting seat is located between the two hinge seats, and the connecting head is connected to the connecting seat.

6. The buffered safety automatic closing hinge as described in claim 5, characterized in that, The movable seat is provided with a hinge joint that is adapted to the hinge seat, and a limiting plate is provided on the hinge joint.

7. The buffered safety automatic closing hinge as described in claim 6, characterized in that, The bottom surfaces of both the fixed seat and the movable seat are connected to pressure plates; the top surfaces of the fixed seat and the movable seat are provided with decorative covers; rubber pads and rubber pad covers are provided between the fixed seat and the pressure plate, and between the movable seat and the pressure plate.

8. The buffered safety automatic closing hinge as described in claim 5, characterized in that, The fixed base is provided with an adjustable waist-shaped hole, the length direction of which is orthogonal to the axial direction of the first connecting shaft.

9. The buffered safety automatic closing hinge as described in claim 8, characterized in that, The adjustable waist-shaped hole is equipped with a fine-tuning component; The fine-tuning component includes a first elastic adjustment member and a second elastic adjustment member disposed opposite to each other, and the first connecting shaft is disposed between the first elastic adjustment member and the second elastic adjustment member.

10. The buffered safety automatic closing hinge as described in claim 9, characterized in that, The first and second elastic adjusting members can adjust the position of the first connecting shaft to push the connecting rod and the damping joint to slide along their respective axes.

11. The buffered safety automatic closing hinge as described in claim 10, characterized in that, Both the first elastic adjusting member and the second elastic adjusting member include an arc-shaped abutment plate, which abuts against the first connecting shaft; An adjusting rod is provided on the arc-shaped abutment plate. The adjusting rod passes through the connecting seat and is fixed with a nut. A compression spring is provided between the arc-shaped abutment plate and the adjusting waist-shaped hole.

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