CN210918631U

CN210918631U - Door hinge with automatic door closing function

Info

Publication number: CN210918631U
Application number: CN201921181566.3U
Authority: CN
Inventors: 廖祥驹
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-07-03
Anticipated expiration: 2029-07-25

Abstract

A door hinge with an automatic door closing function comprises an upper door hinge and a lower door hinge, wherein the upper door hinge and the lower door hinge are connected with a door body through a connecting plate arranged on one side of the upper door hinge and the lower door hinge to connect the door body with the door hinge; the rotary seat lower end face be provided with the direction inclined plane, be provided with the fixing base on the articulated shaft down, the up end of fixing base is provided with down the direction inclined plane, when the hinge rotates, go up direction inclined plane and down the direction inclined plane and extrude each other and promote the rotary seat and produce axial displacement relative to the fixing base, produce and close the door and reset power. The utility model has the advantages that: the ball is used as a medium, so that the door can smoothly move upwards and rotate without resistance, the resistance of the door body is greatly reduced, and the door is opened and closed lightly and flexibly.

Description

Door hinge with automatic door closing function

Technical Field

The utility model relates to a hinge specifically is a hinge with automatic function of closing door.

Background

A door is one of the necessary components of a building, and is typically pivoted to a door frame by a door hinge to effect opening and closing of the door. Although most people have developed a good habit of closing the door at any time in life, the door closing operation needs to be performed by people in the whole process, which is time-consuming, labor-consuming and troublesome, and is especially embarrassed under certain pressing conditions, so that various automatic door closing devices which utilize springs to store the energy for opening the door for closing the door are produced. The door is rotated so that the spring is compressed and the door moves upward to open. Among the prior art, reset mainly relies on elasticity, because the door is heavier, and bulky, consequently when the spring resets, receives inertial influence extremely easily, leads to the door speed of resetting unstable, causes the acceleration very fast, frequently strikes the stopper for the stopper is worn and torn for a long time. Even part door does not have the restriction stopper, belongs to two-way switching, and when the door was closed, it can be static gradually to need the back and forth switching many times, stayed the position of closing, caused unnecessary wearing and tearing. The same door body receives certain resistance in the in-process that reciprocates for the dynamics that the switch door body needs becomes, and the switch door body is not smooth and easy. Meanwhile, the door hinge capable of automatically closing the door is complex in structure and difficult to install, certain professional technology is needed for maintenance and replacement, the cost is increased invisibly, and in order to solve the defects, the door hinge with the automatic door closing function is urgently needed to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, convenient to use safety has the automatic door hinge that closes the door function in one kind of having of closing the door function.

The utility model discloses the purpose is realized with following mode: the utility model provides a hinge with automatic function of closing door, its includes hinge and lower hinge, and upper and lower hinge is through locating the connecting plate and the door body coupling of its one side, with the door body and hinge connection, its characterized in that: a lower shaft sleeve is arranged on one side of the lower door hinge, a rotating seat is embedded in the lower shaft sleeve, and the rotating seat is rotatably sleeved on the lower hinge shaft; the lower end face of the rotating seat is provided with an upper guide inclined plane, the lower articulated shaft is provided with a fixed seat, the upper end face of the fixed seat is provided with a lower guide inclined plane, and when the door hinge rotates, the upper guide inclined plane and the lower guide inclined plane mutually extrude to push the rotating seat to axially move relative to the fixed seat so as to generate door closing reset power; an upper shaft sleeve is arranged on one side of the upper door hinge and is hinged with the upper hinge shaft; the upper shaft sleeve is internally sleeved with a push cylinder, a spring is arranged between the push cylinder and the upper hinge shaft and generates thrust to push the upper hinge shaft upwards all the time, a ball frame is arranged between the bottom of the upper hinge shaft and the spring, a plurality of balls are arranged on the cylindrical surface of the ball frame and protrude out of the cylindrical surface of the ball frame, the balls are in contact with an inner hole of the upper shaft sleeve, and the upper shaft sleeve rotates and axially moves relative to the upper hinge shaft under the action of the balls.

The upper guide inclined plane and the lower guide inclined plane are respectively high on one side and low on the other side, the high point and the low point are connected through an oblique arc surface, and the left arc surface and the right arc surface are symmetrically arranged.

The low point of the intersection of the upper guide inclined plane is clamped in the groove of the fixed seat.

The outer cylindrical surface of the upper end of the rotating seat is provided with an anti-rotating platform which is clamped in an anti-rotating groove at the inner end of the lower shaft sleeve.

The push cylinder is internally provided with a spring hole, one end of the spring is propped against the spring hole, and the other end of the spring is propped against the ball frame.

The ball frame comprises an upper support and a lower support, wherein concave ball grooves are formed in the opposite end faces of the upper support and the lower support, and balls are installed in the ball grooves.

The upper end of the push cylinder is outwards provided with an anti-drop ring, and the upper shaft sleeve is clamped below the anti-drop ring.

The upper end of the upper hinge shaft is sleeved with a positioning ring, and the upper shaft sleeve is clamped on the lower end face of the positioning ring.

The utility model has the advantages that: 1. simple structure, the cost of manufacture is low, improves market competition. 2. The ball is used as a medium, so that the door can smoothly move upwards and rotate without resistance, the resistance of the door body is greatly reduced, and the door is opened and closed lightly and flexibly. 3. By means of the guide inclined plane and the dead weight of the door body, the door body can automatically reset after being opened, and does not need to be closed by means of external force, so that the door body can be kept normally closed.

Drawings

Fig. 1 is a door hinge state diagram when the door body of the utility model is closed.

Fig. 2 is the door hinge state diagram when the door body of the utility model is opened.

Fig. 3 is a cross-sectional view of the middle door hinge of the present invention.

Fig. 4 is an enlarged view of a portion a of fig. 3 according to the present invention.

Fig. 5 is a structural assembly view of the middle door hinge of the present invention.

Fig. 6 is an assembly view of the rotary seat and the fixing seat of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides a hinge with automatic function of closing door, its includes hinge and lower hinge, and upper and lower hinge is through locating 1 AND gate body coupling of connecting plate and the hinge body coupling of its one side, with the door body and hinge connection, its characterized in that: a lower shaft sleeve 2 is arranged on one side of the lower door hinge, a rotating seat 3 is embedded in the lower shaft sleeve 2, and the rotating seat 3 is rotatably sleeved on a lower hinge shaft 4; the lower end face of the rotating seat 3 is provided with an upper guide inclined plane 31, the lower articulated shaft 4 is provided with a fixed seat 5, the upper end face of the fixed seat 5 is provided with a lower guide inclined plane 51, and when the door hinge rotates, the upper guide inclined plane 31 and the lower guide inclined plane 51 mutually extrude to push the rotating seat 3 to axially move relative to the fixed seat 5 to generate door closing reset power; an upper shaft sleeve 6 is arranged on one side of the upper door hinge, and the upper shaft sleeve 6 is hinged with an upper hinge shaft 7; the upper shaft sleeve 6 is internally sleeved with a push cylinder 8, a spring 11 is arranged between the push cylinder 8 and the upper hinge shaft 7, the spring 11 generates thrust to push the upper hinge shaft 7 upwards all the time, a ball frame 9 is arranged between the bottom of the upper hinge shaft 7 and the spring 11, a plurality of balls 10 are arranged on the cylindrical surface of the ball frame 9 and protrude out of the cylindrical surface of the ball frame 9, the balls 10 are in contact with the inner hole of the upper shaft sleeve 6, and the upper shaft sleeve 6 rotates and axially moves relative to the upper hinge shaft 7 under the action of the balls 10.

The upper guide inclined plane 31 and the lower guide inclined plane 51 are both high on one side and low on the other side, the high point and the low point are connected through an oblique arc surface, and the left arc surface and the right arc surface are symmetrically arranged.

The low point of the intersection of the upper guiding inclined plane 31 is clamped in the groove 52 of the fixed seat 5.

The outer cylindrical surface of the upper end of the rotating seat 3 is provided with an anti-rotation platform 32, and the anti-rotation platform 32 is clamped in the anti-rotation groove 21 at the inner end of the lower shaft sleeve 2.

The push cylinder 8 is internally provided with a spring hole 81, one end of the spring 11 is pressed in the spring hole 81, and the other end is pressed on the ball frame 9.

The ball frame 9 comprises an upper bracket 91 and a lower bracket 92, wherein concave ball grooves are arranged on the opposite end surfaces of the upper and

lower brackets

91 and 92, and the balls 10 are arranged in the ball grooves.

The upper end of the push cylinder 8 is outwards provided with an anti-falling ring 82, and the upper shaft sleeve 6 is clamped below the anti-falling ring 82.

The upper end of the upper hinge shaft 7 is sleeved with a positioning ring 12, and the upper shaft sleeve 6 is clamped on the lower end face of the positioning ring 12.

The working principle is as follows: when the door body need be opened, the door body is rotated to the hand, and lower hinge when rotating round articulated shaft down, the roating seat of the embedded installation of lower axle sleeve extrudees the rotation each other through the last direction inclined plane of locating its lower extreme and the lower direction inclined plane of setting up the fixing base on articulated shaft down, promotes the ascending removal of the relative fixing base production axial of roating seat, and the drive door body is when opening to the axial displacement one end distance that makes progress improves power that resets for closing.

Wherein, in order to make the switching of the door body nimble light and handy more, be provided with the ball frame in the upper shaft cover in this case, when the door body shifts up, the cylinder of ball frame is provided with a plurality of ball and outstanding ball frame cylinder setting, the ball contacts with the hole of last axle sleeve, under the effect of ball, the articulated shaft makes circumferencial rotation and axial displacement relatively last axle sleeve for the upper shaft cover shifts up the in-process by the ball as the medium, can smoothly move up without hindrance, the resistance greatly reduced that the door body received, the switch door becomes easy light and handy.

When the door body is opened, the user loosens hands, the door body moves upwards to enable the upper guide inclined plane and the lower guide inclined plane to be mutually extruded, the acting force of the door body is located between the upper guide surface and the lower guide surface which are contacted, after the user looses hands, the gravity of the door body forces the upper guide surface and the lower guide surface to generate torsion in the circumferential direction, the door body is closed, and in the closing process of the door body, the door body can move axially downwards until the door body is closed.

Compared with the prior art, the door body in the scheme can realize automatic closing and resetting by self-weight and extrusion between the upper guide inclined plane and the lower guide inclined plane, and has the advantages of simple and reliable resetting structure, high working efficiency and the like. Simultaneously, because the area of contact between last axle sleeve and last articulated shaft is big, and the door body during switching, not only has the circular rotation, axial motion in addition, for reducing frictional force between the two, be provided with the ball between the two in this case, the ball has played the effect of keeping apart last axle sleeve and last articulated shaft for relative motion between the two is more smooth and easy stable.

Further: in order to facilitate the installation of the door hinge, the spring hole 81 is arranged in the push cylinder 8 arranged at the bottom of the upper shaft sleeve 6, one end of the spring 11 is pressed in the spring hole 81, the other end of the spring is pressed on the ball frame 9, and the spring always pushes the upper hinge shaft 7 upwards by utilizing the ball frame, so that the top end of the upper hinge shaft 7 is inserted into the hinge hole 14 of the upper hinge seat 13. When a user needs to disassemble the door body, the user only needs to press the upper hinge shaft 7 downwards with force to separate the upper hinge shaft from the hinge hole 14 in the upper hinge base 13, so that the door body is convenient to assemble and disassemble, and the door body can be widely popularized and used.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a hinge with automatic function of closing door, its includes hinge and lower hinge, and upper and lower hinge is through locating connecting plate (1) and the door body coupling of its one side, with the door body and hinge connection, its characterized in that: a lower shaft sleeve (2) is arranged on one side of the lower door hinge, a rotating seat (3) is embedded in the lower shaft sleeve (2), and the rotating seat (3) is rotatably sleeved on the lower hinge shaft (4); an upper guide inclined plane (31) is arranged on the lower end face of the rotating seat (3), a fixed seat (5) is arranged on the lower hinged shaft (4), a lower guide inclined plane (51) is arranged on the upper end face of the fixed seat (5), and when the door hinge rotates, the upper guide inclined plane (31) and the lower guide inclined plane (51) are mutually extruded to push the rotating seat (3) to axially move relative to the fixed seat (5) to generate door closing reset power; an upper shaft sleeve (6) is arranged on one side of the upper door hinge, and the upper shaft sleeve (6) is hinged with an upper hinge shaft (7); the upper shaft sleeve (6) is internally sleeved with a push cylinder (8), a spring (11) is arranged between the push cylinder (8) and an upper hinged shaft (7), the spring (11) generates thrust to push the upper hinged shaft (7) upwards all the time, a ball frame (9) is arranged between the bottom of the upper hinged shaft (7) and the spring (11), a plurality of balls (10) are arranged on the cylindrical surface of the ball frame (9) and protrude out of the cylindrical surface of the ball frame (9), the balls (10) are in contact with an inner hole of the upper shaft sleeve (6), and under the action of the balls (10), the upper shaft sleeve (6) rotates and moves axially relative to the upper hinged shaft (7).

2. A door hinge with an automatic door closing function according to claim 1, wherein: the upper guide inclined plane (31) and the lower guide inclined plane (51) are high on one side and low on the other side, the high point and the low point are connected through an oblique arc surface, and the left arc surface and the right arc surface are symmetrically arranged.

3. A door hinge with an automatic door closing function according to claim 1, wherein: the low point of the intersection of the upper guide inclined plane (31) is clamped in the groove (52) of the fixed seat (5).

4. A door hinge with an automatic door closing function according to claim 1, wherein: the outer cylindrical surface of the upper end of the rotating seat (3) is provided with an anti-rotation platform (32), and the anti-rotation platform (32) is clamped in an anti-rotation groove (21) at the inner end of the lower shaft sleeve (2).

5. A door hinge with an automatic door closing function according to claim 1, wherein: a spring hole (81) is arranged in the push cylinder (8), one end of the spring (11) is pressed in the spring hole (81), and the other end of the spring is pressed on the ball frame (9).

6. A door hinge with an automatic door closing function according to claim 1, wherein: the ball frame (9) comprises an upper support (91) and a lower support (92), wherein concave ball grooves are formed in the opposite end faces of the upper support (91) and the lower support (92), and balls (10) are arranged in the ball grooves.

7. A door hinge with an automatic door closing function according to claim 1, wherein: the upper end of the push cylinder (8) is outwards provided with an anti-falling ring (82), and the upper shaft sleeve (6) is clamped below the anti-falling ring (82).

8. A door hinge with an automatic door closing function according to claim 1, wherein: the upper end of the upper hinge shaft (7) is sleeved with a positioning ring (12), and the upper shaft sleeve (6) is clamped on the lower end face of the positioning ring (12).