TWI839905B - Door hinge with transition angle for one-way door leaf and arm plate - Google Patents

Abstract

A door hinge with transition angle for one-way door leaves, which comprises a hinge main body, an arm plate and a joint base, wherein the interior of the hinge main body is arranged with a reset unit. The reset unit is connected with a convex shaft whose outer circumference is polygon on one side, and the convex shaft protrudes from the hinge main body. The arm plate penetrates a set of hole rings to cover the convex shaft, the arm plate pivots with a sliding piece. The joint base forms a long chute, the sliding piece is arranged in the chute to define a virtual plane, defines a virtual first line passing through both ends of the hinge main body and the center of the convex shaft, and defines a virtual second line passing through both ends of the arm plate and the center of the sleeve hole. The front projection of the first line and the second line on the plane intersects along the axis of the convex axis to form a transition angle, which makes the door leaf close to the convex part of the door frame to form a better blocking effect.

Description

Door hinges and arm plates with transition angles for one-way opening and closing of doors

The present invention relates to a door hinge for connecting a door leaf and a door frame; in particular, it relates to an innovative structural form of a door hinge and an arm plate with an excessive angle which is specially used for one-way opening and closing of a door leaf, wherein the door leaf specifically refers to one-way rotation opening and closing.

The door hinge is a component used to connect the door leaf and the door frame. The door hinge is used to support the door leaf and enable the door leaf to rotate, thereby opening and closing the door on which the door leaf is installed. A one-way rotating door leaf means that the door leaf can only be rotated in a limited direction to open. After the door leaf is rotated open, it can only be rotated in the opposite direction to close.

A door leaf is configured to be opened and closed in one direction, and a door frame forms one to several protrusions of varying sizes on one side of the door leaf in the closing direction. When the door leaf is closed, the door leaf abuts against the side of the protrusion facing the opening direction of the door leaf, and the protrusion forms a stop for the door leaf to prevent the door leaf from excessive rotation. The relative abutment between the door leaf and the protrusion can form a better barrier effect.

A conventional door hinge that can cause a door leaf to automatically rotate in the reverse direction and return to close after rotating to open comprises a long hinge body, an arm plate and a receiving seat, wherein a return unit is provided inside the hinge body, the return unit is mainly composed of a hydraulic structure and a spring, and the return unit is connected to a cam that protrudes from the top edge of the hinge body and is lateral to the outer periphery of the hinge body. shaped columnar body, after the cam rotates under the action of external force, the reset unit causes the cam to rotate in the opposite direction, the arm plate is an elongated plate body, and the arm plate near one end cooperates with the cam to penetrate a quadrilateral sleeve hole, and a slide block is pivotally arranged at the other end of the arm plate, the cam is axially inserted into the sleeve hole, and the seat forms an elongated slide groove, the slide block is arranged in the slide groove, and the slide block can slide back and forth along the slide groove.

It is known that when the door hinge is set on the door leaf and the door frame that rotates to open and close, the hinge body can be set on the door leaf, and the socket can be set on the door frame. When the door leaf is opened, the arm plate rotates relative to the hinge body based on the cam as the center, and drives the cam to rotate. The cam is linked to the reset unit, and the reset unit accumulates energy to cause the door leaf to reset and close. The arm plate drives the slide block to slide toward one end of the slide slot. When the control of the door leaf is released, the reset unit provides reset energy to cause the cam and the arm plate to rotate in the opposite direction, so that the door leaf can be reset and closed. The arm plate also drives the slide block to slide toward the other end of the slide slot. When the door leaf contacts the protruding portion of the door frame, the door leaf closes the door.

It is found that the known door hinge still has the following problems and disadvantages in actual application experience: the relative fit of the hinge body, the cam, the arm plate and the sleeve hole in space, and the setting and positioning of the hinge body on the door leaf all affect whether the door leaf can actually contact the protrusion when the door leaf is closed. If the door leaf fails to actually contact the protrusion, the barrier effect of the door leaf on the door after closing is affected. The setting and construction of the known door hinge requires high skills and experience of the construction personnel.

Therefore, in view of the problems existing in the above-mentioned known door hinge technology, how to develop an innovative structure that can be more ideal and practical is indeed waiting for the relevant industry to further think about the goal and direction of breakthrough; in view of this, the inventor, based on many years of experience in manufacturing, developing and designing related products, has designed and carefully evaluated the above-mentioned goals and finally obtained this invention which is truly practical.

The main purpose of the present invention is to provide a door hinge and arm plate with an excessive angle for one-way opening and closing of door leaves. The technical problem to be solved is to explore and innovate a new door hinge with a more ideal and practical performance.

Based on the above purpose, the technical features of the present invention for solving the problem are mainly that the door hinge with an excessive angle dedicated to one-way opening and closing of the door leaf includes:

A long hinge body, a reset unit is arranged inside the hinge body, the reset unit is mainly composed of a hydraulic structure and a spring, the reset unit is connected to a cam, the cam protrudes from the hinge body from the top edge side of the hinge body, the cam is a columnar body with a polygonal outer periphery, after the cam rotates under the action of an external force, the reset unit causes the cam to rotate in the opposite direction;

An arm plate, which is an elongated plate body, has a polygonal sleeve hole passing through one end of the arm plate to cooperate with the cam shaft, and a sliding member is pivotally arranged at the other end of the arm plate, and the sleeve hole surrounds the cam shaft, so that the cam shaft and the arm plate rotate in conjunction; and

A connecting seat, the connecting seat forms an elongated sliding groove, the sliding member is arranged on a side of the arm plate facing the connecting seat, and the sliding member is arranged in the sliding groove, so that the sliding member slides back and forth along the sliding groove; its characteristics are:

A virtual plane is defined, the axial extension of the cam is orthogonal to the plane, a virtual first line is defined along the longitudinal direction of the hinge body passing through the two ends of the hinge body and the center of the cam, and a virtual second line is defined along the longitudinal direction of the arm plate passing through the two ends of the arm plate and the center of the sleeve hole;

When the hinge body and the arm plate are in a free state without external force, the first line and the second line intersect along the axial direction of the cam shaft at an orthographic projection on the plane to form a transition angle, and the transition angle is 2∘ to 5∘;

The lateral periphery of the cam shaft has two side surfaces, the first line passes between each of the side surfaces, and each of the side surfaces is parallel to the first line, the hole wall of the sleeve hole has two wall surfaces, each of the wall surfaces is opposite to each of the side surfaces, the second line passes between each of the wall surfaces, and the extension of each of the wall surfaces in the tangential direction obliquely intersects with the second line.

The main effect and advantage of the present invention is that it can be applied to the occasion where the door leaf is opened unidirectionally with different rotation directions, and the transition angle is used to make the door leaf close to the convex part of the door frame to form a better barrier effect.

Please refer to the drawings, which are preferred embodiments of the present invention. However, these embodiments are for illustrative purposes only and are not limited to these structures in patent applications.

As shown in FIGS. 1 to 5 , the preferred embodiment comprises a long hinge body 10, an arm plate 20 and a seat 30, wherein a reset unit (not shown) is provided inside the hinge body 10. The reset unit is mainly composed of a hydraulic structure and a spring. The reset unit is connected to a cam 12. The cam 12 is formed by the top edge of the hinge body 10. The hinge main body 10 protrudes from the side, and the cam 12 is a columnar body with a polygonal outer circumference. When the cam 12 is rotated by an external force, the cam 12 drives the reset unit to operate. After the external force is removed, the reset unit causes the cam 12 to rotate in the opposite direction. The reset unit is an existing technology familiar to the technical field of the present invention, and its specific structure is not described in detail.

The arm plate 20 is an elongated plate body. A polygonal sleeve hole 22 is passed through one end of the arm plate 20 to cooperate with the cam 12. A sliding member 24 is pivotally arranged at the other end of the arm plate 20. The sleeve hole 22 surrounds the cam 12, so that the cam 12 and the arm plate 20 rotate in conjunction.

The receiving seat 30 forms an elongated slide groove 32, and the sliding member 24 is disposed in the slide groove 32. When the arm plate 20 and the cam 12 rotate, the sliding member 24 slides back and forth along the slide groove 32. The lateral periphery of the sliding member 24 is selected to be circular, which can improve the smoothness of the sliding member 24 sliding back and forth along the slide groove 32.

A virtual plane 42 is defined, and the axial extension of the cam 12 is orthogonal to the plane 42. A virtual first line 44 is defined to pass through the two ends of the hinge body 10 along the elongated direction of the hinge body 10, and the first line 44 passes through the center of the cam 12. A virtual second line 46 is defined to pass through the two ends of the arm plate 20 along the elongated direction of the arm plate 20, and the second line 46 passes through the center of the sleeve hole 22.

When the hinge body 10 and the arm plate 20 are in a free state without external force, the first line 44 and the second line 46 intersect along the axial direction of the cam 12 at the orthographic projection of the plane 42 to form a transition angle θ, and the transition angle θ is 2∘ to 5∘, and the preferred implementation of the transition angle θ is 3∘.

The arm plate 20 has a first surface 26 and a second surface 28, and the first surface 26 and the second surface 28 are opposite to each other along the thickness direction of the arm plate 20; Figures 4 and 5 illustrate two usage states of the preferred embodiment connected to a door frame 92 and a one-way rotating door leaf 94, wherein Figure 4 illustrates the preferred embodiment as shown in Figure 3, which is set on the door frame 92 and the door leaf 94, and the door leaf 94 is in the clockwise direction shown in the figure. The first surface 26 faces the hinge body 10 when the door leaf 94 is rotated in the counterclockwise direction to open and in the counterclockwise direction to close. FIG. 5 illustrates that the door leaf 94 is rotated in the counterclockwise direction to open and in the clockwise direction to close, and the second surface 28 faces the hinge body 10. At this time, the slide 24 is replaced and arranged on the side of the arm plate 20 facing the receiving seat 30, so that the slide 24 can enter the slide groove 32 and slide back and forth.

When the preferred embodiment is used, in conjunction with the direction in which the door leaf 94 rotates to open, the arm plate 20 is connected to the hinge body 10 in a state in which the first surface 26 or the second surface 28 faces the hinge body 10, and the transition angle θ is changed relative to the spatial structure of the hinge body 10. The preferred embodiment only needs to change the relative structure of the arm plate 20 and the hinge body 10 to be applicable to the occasion where the door leaf 94 is opened unidirectionally in different rotation directions. The preferred embodiment has high economic benefits in the scope of application.

When the hinge body 10 and the arm plate 20 are in a free state without external force, the transition angle θ is formed between the hinge body 10 and the arm plate 20. When the hinge body 10 and the arm plate 20 are respectively arranged on the door leaf 94 and the door frame 92, the reset unit drives the cam 12 to rotate, thereby driving the arm plate 20 to rotate, and when the door leaf 94 is closed, the energy stored in the reset unit has not been completely released, and the convex portion 96 of the door frame 92 forms a stop for the door leaf 94, and the door leaf 94 stops rotating. The reset unit still has the power to cause the door leaf 94 to close. The energy of continuing to move in the closing direction causes the arm plate 20 to push against the cam 12 and the socket 30. The pushing effect causes the door leaf 94 to press against the convex portion 96, so that the door leaf 94 can form a better barrier effect. Furthermore, when the hinge body 10 and the socket 30 are respectively installed on the door leaf 94 and the door frame 92, the transition angle θ can make the hinge body 10 and the socket 30 have a larger allowable deviation range in angle relative to the door leaf 94 and the door frame 92, thereby reducing the difficulty of installation and use of the preferred embodiment.

The arm plate 20 passes through a setting hole 29, and the setting hole 29 has a hole wall that is straight in the thickness direction of the arm plate 20. In this example, the setting hole 29 is selected to be a square hole. An assembly part 25 axially penetrates the sliding part 24, and the assembly part 25 has an embedded part 27, and the embedded part 27 is fitted and embedded in the setting hole 29, so that the arm plate 20 is pivoted with the sliding part 24.

Based on the fact that the cam 12 is a square columnar body, the lateral periphery of the cam 12 has two side surfaces 14, the first line 44 passes between the side surfaces 14, and the side surfaces 14 and the first line 44 are parallel, the hole wall of the sleeve hole 22 has two wall surfaces 23, and the wall surfaces 23 are respectively opposite to the side surfaces 14, and the second line 46 passes between the wall surfaces 23, and the extension of the wall surfaces 23 in the tangential direction respectively intersects the second line 46 obliquely.

10: Hinge body 12: Protruding shaft 14: Side surface 20: Arm plate 22: Hole 23: Wall surface 24: Sliding member 25: Assembly member 26: First surface 27: Embedded part 28: Second surface 29: Setting hole 30: Seat 32: Slide groove 42: Plane 44: First line 46: Second line 92: Door frame 94: Door leaf 96: Protruding part θ: Transition angle

Figure 1 is a three-dimensional diagram of a preferred embodiment of the present invention. Figure 2 is a three-dimensional exploded diagram of a preferred embodiment of the present invention. Figure 3 is a partial top view of a preferred embodiment of the present invention. Figure 4 is a schematic top view of a preferred embodiment of the present invention in a state of use. Figure 5 is a schematic top view of another state of use of a preferred embodiment of the present invention.

10: Hinge body

12: Camshaft

20: Arm plate

22: Hole

24: Sliding parts

25: Components

26: First page

27: Embedded part

28: Second side

29: Setting hole

30: Take the seat

32: Chute

42: Plane

44: The front line

46: Second Line

Claims (4)

A door hinge with a transition angle, which is specially used for one-way opening and closing of a door leaf, comprises: a long hinge main body, a reset unit is arranged inside the hinge main body, the reset unit is mainly composed of a hydraulic structure and a spring, the reset unit is connected to a cam, the cam protrudes from the hinge main body from the top edge side of the hinge main body, the cam is a columnar body with a polygonal outer periphery, and after the cam rotates under the action of an external force, the reset unit causes the cam to rotate. The cam rotates in the opposite direction; an arm plate, which is a long plate body, and a polygonal sleeve hole is passed through the cam near one end of the arm plate, and a sliding member is pivoted at the other end of the arm plate, and the sleeve hole surrounds the cam, so that the cam and the arm plate rotate in conjunction; and a seat, which forms an elongated slide groove, and the sliding member is arranged on a side of the arm plate facing the seat, and the sliding member is arranged in the slide groove, so that the sliding member moves along the slide groove The invention relates to a method for sliding the hinge chain body and the method for sliding the hinge chain body. The method is characterized in that: a virtual plane is defined, the axial extension of the cam is orthogonal to the plane, a virtual first line is defined along the longitudinal direction of the hinge chain body through the two ends of the hinge chain body and the center of the cam, and a virtual second line is defined along the longitudinal direction of the arm plate through the two ends of the arm plate and the center of the sleeve hole; when the hinge chain body and the arm plate are in a free state without external force, the first line and the second line are along the longitudinal direction of the arm plate. The axial direction of the cam intersects with the orthographic projection of the plane to form a transition angle, and the transition angle is 2°~5°; the lateral periphery of the cam has two side surfaces, the first line passes between each of the side surfaces, and each of the side surfaces is parallel to the first line, the hole wall of the sleeve hole has two wall surfaces, each of the wall surfaces is opposite to each of the side surfaces, the second line passes between each of the wall surfaces, and the extension of each of the wall surfaces in the tangent direction obliquely intersects with the second line. A door hinge with an excessive angle specifically used for one-way opening and closing of door leaves as described in claim 1, wherein the protruding shaft is a square column. As described in claim 1, the door hinge with an angle specially used for one-way opening and closing of door leaves, wherein the arm plate passes through a setting hole, the setting hole has a hole wall that is straight in the thickness direction of the arm plate, an assembly part axially penetrates the sliding part, and the assembly part has an embedded part, the embedded part cooperates and fits into the setting hole, so that the arm plate is hinged to the sliding part. An arm plate used to constitute a door hinge with an over-angle for one-way opening and closing of a door leaf as described in claim 1, wherein the arm plate is an elongated plate body, wherein a polygonal sleeve hole is penetrated near one end of the arm plate, and the sleeve hole is used to encircle the convex shaft of the hinge main body of the door hinge chain, and the convex shaft is a columnar body with a polygonal outer periphery on the side, and a virtual second line is defined along the elongated direction of the arm plate through the two ends of the arm plate and the center of the sleeve hole, and the hole wall of the sleeve hole has two wall surfaces, and the second line passes between each of the wall surfaces, and the extension of each of the wall surfaces in the tangential direction respectively intersects the second line obliquely; the arm plate penetrates a setting hole, and the setting hole has a hole wall that is straight in the thickness direction of the arm plate.

Images