WO2023284042A1 - Buffering, secure, and automatic door closing hinge - Google Patents

Abstract

A buffering, secure, and automatic door closing hinge, comprising a fixed base (1), a movable base (2), an elastic member (3) provided in the fixed base (1), a damping member (4) provided in the movable base (2), and a connecting member (5) connecting the elastic member (3) and the damping member (4). The connecting member (5) comprises a connecting end (51) hingedly connected to the fixed base (1), a connecting rod (52) connecting the elastic member (3) and the connecting end (51), and a damping connecting end (53) connecting the damping member (4) and the connecting end (51). A hinged connection shaft (6) is provided between the fixed base (1) and the movable base (2), and the hinged connection shaft (6) is not collinear with a rotational axis (7) of the connecting member (5). A first connecting shaft (8a) is provided between the connecting end (51) and the fixed base (1); a second connecting shaft (8b) is provided between the connecting end (51) and the connecting rod (52); and a third connecting shaft (8c) is provided between the connecting end (51) and the damping connecting end (53), wherein the distance between the first connecting shaft (8a) and the second connecting shaft (8b) is smaller than the distance between the first connecting shaft (8a) and the third connecting shaft (8c). The hinge can cause the automatic and slow closing of a door, thereby improving user experience.

Description

A buffer safety automatic door closing hinge technical field

The invention relates to the technical field of hinges, in particular to a buffer safety automatic door closing hinge.

Background technique

The existing shower room usually adopts the following two kinds of doors, one is a closed door without a buffer, which requires the user to close the door manually. It is inconvenient to come and go; if the user exerts too little force, it will be difficult to close the door completely, and an auxiliary push and pull is required. The other is a door with a buffer. The spring and damping strokes of this type of hinge door are synchronized. When the stroke is short, the damper is difficult to work, and even directly affects the life of the damping. In addition, the above-mentioned hinges often have a cam structure on the hinge shaft, which will destroy the integrity of the hinge shaft and increase the difficulty of processing.

Contents of the invention

The technical problem to be solved by the present invention is to provide a buffer safety automatic door closing hinge, which can automatically close the door slowly and improve user experience.

In order to solve the above technical problems, the present invention provides a buffer safety automatic door closing hinge, which includes a fixed seat, a movable seat hinged with the fixed seat, an elastic member arranged in the fixed seat, and a movable seat arranged in the movable seat. The damping part inside, and the connecting part connecting the elastic part and the damping part;

The connecting piece includes a connecting head hinged with the fixing seat, a connecting rod connecting the elastic member and the connecting head, and a damping joint connecting the damping member and the connecting head;

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 piece.

As an improvement of the above technical solution, a first connecting shaft is provided between the connecting head and the fixing seat, a second connecting shaft is provided between the connecting head and the connecting rod, and a connecting shaft is provided between the connecting head and the damping joint. The third connection axis, the distance between the first connection axis and the second connection axis is smaller than the distance between the first connection axis and the third connection axis.

As an improvement of the above technical solution, the connector is a bent plate, and the bent plate includes a short side and a long side;

The first connecting shaft is arranged at the turning point of the bending plate, the second connecting shaft is arranged on the short side of the connecting head, and the third connecting shaft is arranged on the long side of the connecting head .

As an improvement of the above technical solution, an installation groove is provided in the fixing seat, and the elastic member includes a spring arranged in the installation groove, and a push rod member sleeved in the spring;

The push rod is detachably connected to the connecting rod.

As an improvement of the above technical solution, the damping member includes a one-way damping cylinder connected to the movable seat and a damping rod, and the damping rod is detachably connected to the damping joint.

As an improvement of the above technical solution, the fixed base is provided with two hinged bases oppositely arranged, and a connecting base arranged between the two hinged bases;

The hinged seat and the connecting seat are misplaced;

The connecting seat is arranged between the two hinged seats, and the connecting head is connected with the connecting seat.

As an improvement of the above technical solution, the fixed seat is provided with an adjustment waist-shaped hole, and the length direction of the waist-shaped hole is set perpendicular to the axial direction of the first connecting shaft;

A fine-tuning component is arranged in the adjusting waist-shaped hole;

The fine-tuning assembly includes a first elastic adjustment member and a second elastic adjustment member oppositely arranged, and the first connecting shaft is arranged between the first elastic adjustment member and the second elastic adjustment member; the first elastic adjustment The position of the first connecting shaft can be adjusted by the member and the second elastic adjusting member, so as to push the connecting rod and the damping joint to slide along their respective axes.

As an improvement of the above technical solution, both the first elastic adjustment member and the second elastic adjustment member include an arc-shaped abutment plate, and the arc-shaped abutment plate abuts against the first connecting shaft;

An adjustment rod is provided on the arc-shaped abutment plate, and the adjustment rod passes through the connecting seat and is fixed with a nut, and a compression spring is arranged between the arc-shaped abutment plate and the adjustment waist-shaped hole.

As an improvement of the above technical solution, an adjusting screw is provided between the elastic member and the fixing seat, and the adjusting screw can adjust the initial elastic force of the elastic member.

As an improvement of the above-mentioned technical solution, the movable seat is arranged on a hinged joint adapted to the hinged joint, and a limiting plate is provided on the hinged joint;

Both the bottom surface of the fixed seat and the movable seat are connected with a pressure plate;

A rubber pad and a rubber pad cover are provided between the fixed seat and the pressure plate, and between the movable seat and the pressure plate;

Decorative covers are provided on the top surfaces of the fixed seat and the movable seat.

As an improvement of the above technical solution, a rubber strip is provided on the outside of the rubber pad cover, the rubber strip is provided with an insertion portion, and a cutout is provided on the insertion portion.

Implement the present invention, have following beneficial effect:

In the present invention, an elastic piece is arranged in the fixed seat, a damping piece is arranged in the movable seat, and the elastic piece is connected to the damping piece through a connecting piece, the connecting piece is hinged to the fixed seat, the fixed seat is hinged to the movable seat, and the The hinge axis of the fixed seat and the movable seat is misaligned with the hinge axis of the connecting piece and the fixed seat, so as to improve the stroke of the elastic piece and the damping piece. Further, by making the distance between the first connecting shaft and the second connecting shaft smaller than the distance between the first connecting shaft and the third connecting shaft, when the connecting head rotates around the first connecting shaft, the The motion locus of the second connecting shaft is not parallel to the motion locus of the third connecting shaft, the stroke of the damping element is larger than the stroke of the elastic element, and the stroke of the damping element is 1.5-1.5- 2 times, in order to increase the stroke of the damper, thereby improving the reliability and service life of the damper.

Further, the fixed seat is provided with an adjustment waist hole, and a fine adjustment assembly is arranged in the adjustment waist hole, and the first connecting shaft is driven by the fine adjustment assembly to change the position, when the first connecting shaft When the position is changed, the initial compression amount of the elastic member and the initial position of the damping rod will be indirectly changed, thereby adjusting the driving force when opening and closing the door, so as to adjust the speed of opening the door.

Description of drawings

Fig. 1 is an exploded view of the buffer safety automatic door closing hinge related to the present invention;

Fig. 2 is a cross-sectional view of the closed state of the buffer safety automatic door closing hinge of the present invention;

Fig. 3 is a cross-sectional view of the door-opening state of the buffer safety automatic door-closing hinge related to the present invention;

Fig. 4 is a structural schematic diagram of a connector involved in the present invention;

Fig. 5 is a schematic structural diagram of the fine-tuning assembly involved in the present invention;

Fig. 6 is another embodiment of adjusting the speed of door opening involved in the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It is only stated here that the words for directions such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific to the present invention. limited.

Referring to Fig. 1 and Fig. 2, the present invention provides a buffer safety automatic door closing hinge, which includes a fixed seat 1, a movable seat 2 hinged to the fixed seat 1, an elastic member 3 arranged in the fixed seat 1, The damping element 4 provided in the movable seat 2, and the connecting element 5 connecting the elastic element 3 and the damping element 4;

The connecting member 5 includes a connecting head 51 hinged with the fixed seat 1, a connecting rod 52 connecting the elastic member 3 and the connecting head 51, and a damping joint 53 connecting the damping member 4 and the connecting head 51;

A hinge shaft 6 is provided between the fixed seat 1 and the movable seat 2 , and the hinge shaft 6 is not collinear with the rotation axis 7 of the connecting member 5 .

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 door, the damping member 4 arranged in the movable seat 2 is stretched, pushing the connecting head 51 connected through the damping joint 53 to rotate, and the rotating of the connecting head 51 will push the connecting rod 52 Compress the elastic member 3 to store energy. During the whole process of the movable door leaf 106 turning and closing the door, the elastic member 3 releases the elastic force, and pushes the connecting head 51 to rotate through the connecting rod 52, thereby pushing the door to close automatically; The joint 53 compresses the damping member 4 to generate a damping force, and the damping force will offset part of the elastic force for buffering and improve the safety of closing the door. In order to avoid damage to the structure of the hinge shaft 6 caused by directly driving the elastic member 3 and the damping member 4 through the hinge shaft 6 of the fixed seat 1 and the movable seat 2, the processing is difficult, and the travel of the elastic member 3 and the damping member 4 is too small. In the invention, the hinge shaft 6 and the connecting piece 5 are independently provided. The rotation axis 7 of the hinge shaft 6 and the connecting member 5 is not collinear, so that the elastic member 3 and the damping member 4 can obtain a larger movement stroke, so that the buffering is more sensitive; at the same time, the hinge shaft 6 will not be damaged. Integrity, thereby reducing processing costs.

Referring to Fig. 2, further, the connecting head 51 is respectively connected to the fixing seat 1, the elastic member 3 and the damping member 4 through the first connecting shaft 8a, the second connecting shaft 8b and the third connecting shaft 8c, and the first The distance between the connecting axis 8a and the second connecting axis 8b is smaller than the distance between the first connecting axis 8a and the third connecting axis 8c. When the connecting head 51 rotates around the first connecting shaft 8a, the movement track of the second connecting shaft 8b is not parallel to the moving track of the third connecting shaft 8c, so that the connecting rod 52 and the damping joint 53 have different movement strokes along the horizontal direction, specifically, the stroke of the elastic element 3 is smaller than the stroke of the damping element 4 . In this embodiment, the stroke of the damping element 4 is larger than the stroke of the elastic element 3, and the stroke of the damping element 4 is 1.5-2 times the stroke of the elastic element 3, so as to increase the stroke of the damping element 4, Thereby, the reliability and service life of the damping member 4 are improved.

Referring to Fig. 4, in this embodiment, the connecting head 51 is a bent plate, the first connecting shaft 8a is arranged at the turning point of the bent plate, and the bent plate includes a short side 511 and a long side 512 ; the second connecting shaft 8 b is set on the short side 511 of the connecting head 51 , and the third connecting shaft 8 c is set on the long side 512 of the connecting head 51 . Specifically, the connecting head 51 is a bent plate, the first connecting shaft 8a is set at the turning point of the bent plate, the second connecting shaft 8b is set on the short side 511, and the third connecting shaft 8a The shaft 8c is provided on the long side 512 . The radius of rotation of the second connecting shaft 8 b and the third connecting shaft 8 c are different, so that the stroke of the damping element 4 is greater than the stroke of the elastic element 3 .

Further, the bent plate is a concave plate, and the angle between the long side 512 and the short side 511 is 80°-105°. A concave plate is used to avoid motion interference with the fixed seat 1 and the movable seat 2 when the connecting head 51 rotates. The included angle between the long side 512 and the short side 511 is 80°-105°, and a reinforcing rib is provided between the long side 512 and the short side 511 to increase the connection between the long side 512 and the short side 511 strength, so as to improve the service life of the connector 51.

Referring to FIG. 2 , the mounting groove 11 is provided in the fixing seat 1 , the elastic member 3 includes a spring 31 disposed in the mounting groove 11 , and a push rod member 32 socketed with the spring 31 ; The push rod member 32 is detachably connected to the connecting rod 52 . Specifically, one end of the spring 31 is in contact with the mounting groove 11 , and the other end is in contact with the push rod member 32 . The push rod member 32 is provided with a sleeve rod 321 and a mounting seat 322 , and the sleeve rod 321 is sheathed in the spring 31 to prevent the spring 31 from bending and deforming, which affects the normal use of the elastic member 3 . The mounting base 322 defines a mounting hole 323 adapted to the connecting rod 52 . In addition, the number of the springs 31 can be set in multiples according to requirements.

Referring to FIG. 3 , the damping element 4 includes a one-way damping cylinder 41 connected to the movable seat 2 and a damping rod 42 , and the damping rod 42 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 stretched, the damping element 4 does not produce resistance. When compressed, the damping element 4 generates damping to absorb the kinetic energy of closing the door. , to achieve buffered closing.

Referring to Fig. 1 , the fixed base 1 is provided with two hinged bases 12 oppositely arranged, the movable base 2 is provided with a hinged joint 21 adapted to the hinged base 12, and the hinged joint 21 is provided with a stopper 211. Specifically, the two hinge seats 12 are respectively connected to the corresponding hinge heads 21 through the hinge shaft 6 . The fixing seat 1 is further provided with a connecting seat 13 disposed between the two hinged seats 12 . The connecting seat 13 is used to install the connecting head 51, and the hinged seat 12 and the connecting seat 13 are misplaced, so that the rotation axis of the fixed seat 1 and the movable seat 2 is not collinear with the rotation axis of the connector 5, and the The connecting base 13 is arranged between the two hinged bases 12, so that the structure of the hinged shaft 6 will not be damaged due to the arrangement of the elastic member 3 and the damping member 4, and motion interference will not occur.

Referring to FIG. 5 , in order to adjust the elastic force of the elastic member 3 to adjust the speed of opening and closing the door. The fixed base 1 is provided with an adjustment waist-shaped hole 14, and the adjustment waist-shaped hole 14 is provided with a fine-tuning assembly 9; the fine-tuning assembly 9 includes a first elastic adjustment member 9a and a second elastic adjustment member 9b oppositely arranged , the first connecting shaft 8a is arranged between the first elastic adjustment member 9a and the second elastic adjustment member 9b; the first elastic adjustment member 9a and the second elastic adjustment member 9b both include arc-shaped abutment plates 91, the arc-shaped abutment plate 91 abuts against the first connecting shaft 8a; the arc-shaped abutment plate 91 is provided with an adjustment rod 92, and the adjustment rod 92 passes through the connection seat 13 and the nut 93 is fixed, and a compression spring 94 is provided between the arc-shaped abutment plate 91 and the adjustment waist-shaped hole 14 to provide pressing force for the arc-shaped abutment plate 91 . Specifically, the length direction of the waist-shaped hole 14 is set perpendicular to the axial direction of the first connecting shaft 8a, and the first elastic adjustment member 9a and the second elastic adjustment member 9b can both adjust along the waist shape. The length direction of the hole 14 is adjusted; and the first elastic adjustment member 9a and the second elastic adjustment member 9b are applied to the arc-shaped abutment plate 91 through the corresponding compression spring 94 and the corresponding adjustment rod 92 and nut 93 The locking force between them is balanced. The position of the first connecting shaft 8a is adjusted by adjusting the compression amount of the compression spring 94 of the first elastic adjusting member 9a and the second elastic adjusting member 9b. 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, and 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 opening and closing the door.

Referring to FIG. 6 , as a second embodiment for adjusting the speed of opening the door, an adjusting screw 107 is provided between the elastic member 3 and the fixing seat 1, and the adjusting screw 107 is connected with the elastic member 3 to adjust the elastic member 3. The initial position to adjust the speed of opening and closing the door.

Referring to FIG. 1 , the bottom surfaces of the fixed base 1 and the movable base 2 are both connected with a pressure plate 10 . The pressing plate 10 can prevent the elastic part 3 and the damping part 4 from coming out. The pressing plate 10 is arranged on the back side of the movable door leaf 106 and the fixed door leaf 105 .

A rubber pad 101 and a rubber pad cover 102 are provided between the fixed seat 1 and the pressing plate 10 , and between the movable seat 2 and the pressing plate 10 . The rubber pad 101 can make soft contact between the hinge and the fixed door leaf 105 and the movable door leaf 106, so as to avoid damage to the fixed door leaf 105 and the movable door leaf 106 due to excessive pressing force.

Decorative covers 103 are provided on the top surfaces of the fixed seat 1 and the movable seat 2 . The decorative cover 103 is connected to the pressing plate 10 by screws.

The outer side of the rubber pad cover 102 is provided with a rubber strip 20 , the rubber strip 20 is provided with an insertion portion 201 , and the insertion portion 201 is provided with a cutout 202 . Specifically, the fixed seat 12 is connected to the fixed door leaf 105, the movable seat 2 is connected to the movable door leaf 106, the rubber strip 20 is stuck in the door gap between the fixed door leaf 105 and the movable door leaf 106, and the insertion part 201 is inserted into the door gap, in order to avoid interference with the fixed seat 1 and the movable seat 2, the insertion part 201 is provided with a cutout 202 adapted to the positions of the fixed seat and the sliding seat, so as to achieve waterproofing without affecting the switch Door.

In summary, the present invention arranges the elastic member 3 in the fixed seat 1, arranges the damping member 4 in the movable seat 2, and connects the elastic member 3 to the damping member 4 through the connecting member 5, and the connecting member 5 is hinged to the fixed seat 1 , the fixed seat 1 and the movable seat 2 are hinged, and the axis of the hinge shaft 6 of the fixed seat 1 and the movable seat 2 is misaligned with the hinge axis 7 of the connecting member 5 and the fixed seat 1, so as to improve the elasticity of the elastic member 3 With the stroke of the damper 4. Further, by making the distance between the first connecting axis 8a and the second connecting axis 8b smaller than the distance between the first connecting axis 8a and the third connecting axis 8c, the connecting head 51 can be wound around the first connecting axis When the shaft 8a rotates, the movement track of the second connecting shaft 8b is different from the moving stroke of the third connecting shaft 8c, and the stroke of the elastic member 3 is smaller than the stroke of the damping member 4, wherein the stroke of the elastic member 3 It is about 7-8mm, and the stroke of the damping element 4 is about 12-15mm, so as to increase the stroke of the damping element 4, thereby improving the reliability and service life of the damping element 4.

The above description is a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered Be the protection scope of the present invention.

Claims (10)

A buffer safety automatic door-closing hinge, characterized in that it includes a fixed seat, a movable seat hinged to the fixed seat, an elastic member arranged in the fixed seat, a damping member arranged in the movable seat, and a connecting piece connecting the elastic element and the damping element; The connecting piece includes a connecting head hinged with the fixing seat, a connecting rod connecting the elastic member and the connecting head, and a damping joint connecting the damping member and the connecting head; 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 piece; A first connecting shaft is provided between the connecting head and the fixing seat, a second connecting shaft is provided between the connecting head and the connecting rod, a third connecting shaft is provided between the connecting head and the damping joint, and the The distance between the first connection axis and the second connection axis is smaller than the distance between the first connection axis and the third connection axis. The buffer safety automatic door-closing hinge according to claim 1, wherein the connecting head is a bent plate, and the bent plate includes a short side and a long side; The first connecting shaft is arranged at the turning point of the bending plate, the second connecting shaft is arranged on the short side of the connecting head, and the third connecting shaft is arranged on the long side of the connecting head . The buffer safety automatic door-closing hinge according to claim 1, wherein an installation groove is provided in the fixed seat, and the elastic member includes a spring arranged in the installation groove, and is sleeved on the spring Inside the push rod; The push rod is detachably connected to the connecting rod. The cushioning safety automatic door-closing hinge according to claim 1, wherein the damping member includes a one-way damping cylinder connected to the movable seat and a damping rod, and the damping rod is detachably connected to the damping joint . The buffer safety automatic door-closing hinge according to claim 4, characterized in that, the fixed seat is provided with two hinged seats opposite to each other, and a connecting seat arranged between the two hinged seats; The hinged seat and the connecting seat are misplaced; The connecting seat is arranged between the two hinged seats, and the connecting head is connected with the connecting seat. The buffer safety automatic door-closing hinge according to claim 5, characterized in that, the fixed seat is provided with an adjustment waist-shaped hole, and the length direction of the waist-shaped hole is perpendicular to the axial direction of the first connecting shaft set up; A fine-tuning component is arranged in the adjusting waist-shaped hole; The fine-tuning assembly includes a first elastic adjustment member and a second elastic adjustment member oppositely arranged, and the first connecting shaft is arranged between the first elastic adjustment member and the second elastic adjustment member; the first elastic adjustment The position of the first connecting shaft can be adjusted by the member and the second elastic adjusting member, so as to push the connecting rod and the damping joint to slide along their respective axes. The buffer safety automatic door-closing hinge according to claim 6, characterized in that, both the first elastic adjustment member and the second elastic adjustment member include an arc-shaped abutment plate, and the arc-shaped abutment plate is connected to the first elastic adjustment member. a connecting shaft abuts; An adjustment rod is provided on the arc-shaped abutment plate, and the adjustment rod passes through the connecting seat and is fixed with a nut, and a compression spring is arranged between the arc-shaped abutment plate and the adjustment waist-shaped hole. The buffer safety automatic door-closing hinge according to claim 3, wherein an adjusting screw is provided between the elastic member and the fixing seat, and the adjusting screw can adjust the initial elastic force of the elastic member. The buffer safety automatic door-closing hinge according to claim 1, characterized in that, the movable seat is arranged on a hinged joint adapted to the hinged joint, and a limit plate is provided on the hinged joint; Both the bottom surface of the fixed seat and the movable seat are connected with a pressure plate; The top surface of the fixed seat and the movable seat is provided with a decorative cover; A rubber pad and a rubber pad cover are provided between the fixed seat and the pressing plate, and between the movable seat and the pressing plate. The buffer safety automatic door-closing hinge according to claim 1, wherein a rubber strip is provided on the outside of the rubber pad cover, and the rubber strip is provided with an insertion part, and a cutout is provided on the insertion part.

Images