Hidden type lifting hinge

Abstract

The utility model relates to the field of parts for doors, in particular to a hidden type lifting hinge. According to the hinge provided by the utility model, the fixed hinge bottom plate and the movable hinge bottom plate are not used as inner layers, and the fixed hinge mounting plate and the movable hinge mounting plate are additionally arranged as inner layers and are respectively mounted on a door frame and a door; an original bottom plate is changed into an outer layer, and the outer plate surface is made into a decorative surface to be exposed, so that attractiveness is realized; the rotating assembly is located between the outer-layer bottom plate and the inner-layer mounting plate and cannot be exposed, and attractiveness is not affected; the rotating assembly can ascend and descend, so that the movable hinge bottom plate automatically ascends in the process of being opened relative to the fixed hinge bottom plate and automatically descends and resets in the process of being closed relative to the fixed hinge bottom plate, and therefore the door leaf automatically ascends in the process of being opened and automatically descends and resets in the process of being closed, and a sealing rubber strip at the bottom of the door leaf is prevented from being abraded. The sealing effect of the door leaf is ensured.

Description

Technical Field

[0001] This utility model relates to the field of door and window parts, and in particular to a concealed liftable hinge. Background Technology

[0002] A door generally consists of a door frame and door panels mounted on the frame. The opening and closing of the door panels relative to the door frame is typically achieved through hinges. Hinges consist of fixed and movable hinges. Fixed hinges include a fixed hinge base plate, and movable hinges include a movable hinge base plate. A rotating assembly connects the inner surfaces of the fixed and movable hinge base plates, allowing the movable hinge base plate to rotate relative to the fixed hinge base plate. The outer surface of the fixed hinge base plate is mounted on the door frame, and the outer surface of the movable hinge base plate is mounted on the door panel. The rotation of the movable hinge base plate relative to the fixed hinge base plate causes the door panel to rotate relative to the door frame, thus opening and closing the door. Currently, hinge products on the market are not perfect: on the one hand, the base plate, as the inner layer, has its outer surface mounted on the door frame / door, while the rotating assembly, as the outer layer, is exposed, which is unsightly; on the other hand, the bottom edge of the door panel has a sealing strip to ensure a tight seal when the door is closed. During the opening and closing process, the sealing strip rubs against the ground, which over time affects the sealing effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a hinge in which the rotating component is not exposed from the back of the hinge as an outer layer, thus having better aesthetics and preventing the sealing strip at the bottom of the door from being worn during the opening and closing of the door, thereby ensuring the sealing effect of the door.

[0004] To solve the above problems, the hinge of this utility model includes a fixed hinge and a movable hinge. The fixed hinge includes a fixed hinge base plate, and the movable hinge includes a movable hinge base plate. The fixed hinge has a fixed hinge mounting plate as an inner layer for mounting onto a door frame, and the movable hinge has a movable hinge mounting plate as an inner layer for mounting onto a door leaf. The fixed hinge base plate and the movable hinge base plate are the outer layers, and their outer surfaces are made into decorative surfaces that are exposed. A rotating component is provided between the outer layer base plate and the inner layer mounting plate to rotatably connect the fixed hinge base plate and the movable hinge base plate, so that the movable hinge base plate can rotate to open and close relative to the fixed hinge base plate. The rotating component is height-adjustable, so that the movable hinge base plate automatically rises during the opening process relative to the fixed hinge base plate and automatically descends to its reset position during the closing process relative to the fixed hinge base plate.

[0005] Furthermore, the inner mounting plate is fixed to the outer base plate with screws.

[0006] Furthermore, the rotating assembly includes a bearing fixedly mounted on the fixed page base plate and a lifting bushing fixedly mounted on the movable page base plate; the top of the bearing is provided with a wedge-shaped groove, and the bottom of the lifting bushing extends downward with a protrusion that mates with the wedge-shaped groove. The inclined surface of the protrusion contacts the wedge-shaped groove, and it rotates upward along the inclined direction, thereby causing the movable page base plate to automatically rise during the opening process relative to the fixed page base plate, and rotates downward along the inclined direction, thereby causing it to automatically descend and reset during the closing process relative to the fixed page base plate.

[0007] Furthermore, the rotating assembly also includes a shaft that connects the lifting bushing and the bearing seat together.

[0008] Furthermore, a shaft mounting position is provided at one end of the inner plate of the fixed page base plate near the movable page base plate, and the shaft is fixedly installed in the shaft mounting position.

[0009] Furthermore, a pivot support extends from the inner surface of the movable page base plate near the fixed page base plate, and has a through hole; the lifting shaft sleeve is fitted into the through hole of the pivot support.

[0010] Furthermore, the through hole wall has an axial groove, and the outer wall of the lifting bushing is correspondingly provided with an axial locking post. When the locking post is engaged in the groove, the rotation of the movable page bottom plate and the rotating shaft support will drive the lifting bushing to rotate.

[0011] Furthermore, this concealed, liftable hinge is a door hinge, with its fixed hinge mounted on the door frame and its movable hinge mounted on the door panel.

[0012] Beneficial effects: This utility model does not use the fixed page base plate and the movable page base plate as inner layers, but instead uses a separate fixed page mounting plate and a movable page mounting plate as inner layers, which are installed on the door frame and the door respectively; the original base plate is changed to the outer layer, and its outer surface is made into a decorative surface for external exposure, achieving aesthetics; the rotating component is located between the outer base plate and the inner mounting plate, and is not exposed, thus not affecting the aesthetics; the rotating component can be raised and lowered, so that the movable page base plate automatically rises when it is opened relative to the fixed page base plate, and automatically lowers and resets when it is closed relative to the fixed page base plate, thereby making the door automatically rise when opening and automatically lower and reset when closing, avoiding wear on the sealing strip at the bottom of the door and ensuring the sealing effect of the door. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the concealed, height-adjustable hinge in its closed state.

[0014] Figure 2 This is a structural diagram of the concealed, height-adjustable hinge in its open state.

[0015] Figure 3 This is an exploded view of a concealed, height-adjustable hinge.

[0016] Figure 4 It is a simplified structural diagram of the lifting bushing, bearing, and rotating shaft.

[0017] Figure 5 It is a simplified schematic diagram showing the assembly of the lifting bushing, bearing, and rotating shaft.

[0018] Symbol explanation:

[0019] 1-Fixed page base plate; 2-Moving page base plate; 3-Rotating assembly; 4-Fixed page mounting plate; 5-Moving page mounting plate; 6-Screw; 11-Inner surface of fixed page base plate; 12-Outer surface of fixed page base plate; 13-Shaft seat mounting position; 21-Inner surface of moving page base plate; 22-Outer surface of moving page base plate; 31-Shaft seat; 32-Lifting bushing; 33-Rotating shaft; 34-Rotating shaft support; 312-Wedge groove; 321-Snap-fit ​​post; 322-Protrusion; 323-Boss; 341-Slot. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments.

[0021] Concealed height-adjustable hinges, such as Figure 1 As shown, the device includes a fixed page and a movable page. The fixed page includes a fixed page base plate 1 and a fixed page mounting plate 4 fixed to the inner plate surface 11 of the fixed page base plate with screws 6. The movable page includes a movable page base plate 2 and a movable page mounting plate 5 fixed to the inner plate surface 21 of the movable page base plate with screws 6. The fixed page base plate 1 and the movable page base plate 2 serve as the outer layers, with their outer plate surfaces 12 and 22 exposed as decorative surfaces. The fixed page mounting plate 4 and the movable page mounting plate 5 serve as the inner layers, respectively installed on the door frame and the door leaf. Thus, the fixed page and the movable page are respectively installed on the door frame and the door leaf. A rotating assembly 3 is provided between the outer base plates 1 and 2 and the inner mounting plates 4 and 5 to rotatably connect the inner plate surface 11 of the fixed page base plate and the inner plate surface 21 of the movable page base plate, allowing the movable page base plate 2 to rotate relative to the fixed page base plate 1 to open and close. Thus, the movable page can rotate relative to the fixed page to open and close. The movable page... Figure 1 The state shown, where the door is closed relative to the fixed page (at which point the door is closed relative to the door frame), is transformed by rotating the fixed page counterclockwise. Figure 2 The door, which is shown as open relative to the fixed page (at this time, the door is open relative to the door frame), is switched back by rotating clockwise relative to the fixed page. Figure 1 The image shows the state where the relatively fixed page is closed.

[0022] For details on the concealed height-adjustable hinge, please refer to [link / reference]. Figure 3 A bearing seat 31 and a lifting bushing 32 are provided between the fixed page base plate 1 and the movable page base plate 2. See details. Figure 4The top of the bearing seat 31 is provided with a wedge-shaped groove 312; the lower part of the lifting bushing 32 has a boss 323 extending radially outward, and the bottom of the boss 323 has a protrusion 322 extending downward to cooperate with the wedge-shaped groove 312. See Figure 3 The inner plate 11 of the fixed page base plate is provided with a shaft mounting position 13 at the end near the movable page base plate 2; the inner plate 21 of the movable page base plate is provided with a rotating shaft support 34 at the end near the fixed page base plate 1, which has a through hole. The installation process of the fixed page base plate 1 and the movable page base plate 2 is as follows: The shaft seat 31 is fixedly installed on the shaft seat mounting position 13 on the fixed page base plate 1. Then, the lifting shaft sleeve 32 is inserted into the through hole of the rotating shaft support 34 from bottom to top until its boss 323 abuts against the bottom surface of the rotating shaft support 34. The through hole wall on the rotating shaft support 34 has an axial groove 341. The outer wall of the lifting shaft sleeve 32 is correspondingly provided with an axial locking post 321. When the lifting shaft sleeve 32 is inserted into the through hole, the locking post 321 is locked into the groove 341. Thus, the rotation of the movable page base plate 2 and the rotating shaft support 34 will drive the lifting shaft sleeve 32 to rotate. Then, the lifting shaft sleeve 32 together with the rotating shaft support 34 is placed on the top of the shaft seat 31. Finally, the fixed page base plate 1, the shaft seat 31 and the lifting shaft sleeve 32 are connected together by the rotating shaft 33. At this point, the bearing seat 31, lifting bushing 32, rotating shaft 33, and rotating shaft support 34 together form the rotating assembly 3, which rotatably connects the inner plate surface 11 of the fixed page base plate and the inner plate surface 21 of the movable page base plate together. Thus, the movable page base plate 2 is rotatably connected to the fixed page base plate 1, and can rotate to open and close relative to the fixed page base plate 1.

[0023] When the fixed page base plate 1 and the movable page base plate 2 are rotatably connected, the fixed page and the movable page are rotatably connected. During the process of the movable page rotating counterclockwise relative to the fixed page to open, the movable page base plate 2 rotates counterclockwise relative to the fixed page base plate 1, and the lifting sleeve 32 rotates counterclockwise relative to the bearing seat 31. The protrusion 322, housed at the bottom of the wedge-shaped groove 312, contacts the wedge-shaped groove 312 on its inclined surface. The protrusion 322 rotates counterclockwise along the inclined direction and gradually rises, causing the lifting sleeve 32 to gradually rise, thus automatically raising the movable page during the opening process relative to the fixed page. During the process of the movable page rotating clockwise relative to the fixed page to close, the movable page base plate 2 rotates clockwise relative to the fixed page base plate 1 to reset, and the lifting sleeve 32 rotates clockwise relative to the bearing seat 31 to reset. The protrusion 322 rotates clockwise along the inclined direction and gradually descends back to the bottom of the wedge-shaped groove 312, causing the lifting sleeve 32 to gradually descend and reset, thus automatically lowering and resetting the movable page during the closing process relative to the fixed page.

[0024] When the door is closed, the active page is closed relative to the fixed page, see Figure 1The movable page and the fixed page form a 180° angle. The rotating component 3 is located between the outer bottom plates 1 and 2 and the inner mounting plates 4 and 5. From the user's perspective, only the outer bottom plate surfaces 12 and 22, which serve as decorative surfaces, are visible; the exposed rotating component 3 is not. In the open state, the movable page is closed relative to the fixed page. Figure 2 The movable and fixed pages form a 90° angle. The rotating component 3 is located at the angle between the door page and the door frame and is concealed by the outer bottom plates 1 and 2, so it remains invisible to the user. When the user opens the door, the movable page rotates counter-clockwise relative to the fixed page and rises, causing the door page to automatically rise during opening. When the user closes the door, the movable page rotates clockwise relative to the fixed page and descends to its original position, causing the door page to automatically descend and return to its original position during closing.

[0025] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A concealed, height-adjustable hinge, comprising a fixed hinge and a movable hinge, wherein the fixed hinge includes a fixed hinge base plate and the movable hinge includes a movable hinge base plate, characterized in that: The fixed page has a mounting plate for mounting onto the door frame as an inner layer, and the movable page has a mounting plate for mounting onto the door page as an inner layer; the fixed page base plate and the movable page base plate are the outer layers, with their outer surfaces made into decorative exposed surfaces; a rotating assembly is provided between the outer base plate and the inner mounting plate to rotatably connect the fixed page base plate and the movable page base plate, allowing the movable page base plate to rotate relative to the fixed page base plate to open and close; the rotating assembly is height-adjustable, so that the movable page base plate automatically rises during the opening process relative to the fixed page base plate and automatically descends to its reset position during the closing process relative to the fixed page base plate.

2. The concealed, height-adjustable hinge as described in claim 1, characterized in that: The inner mounting plate is fixed to the outer base plate with screws.

3. The concealed height-adjustable hinge as described in claim 1, characterized in that: The rotating assembly includes a bearing fixedly mounted on the fixed page base plate and a lifting bushing fixedly mounted on the movable page base plate. The bearing has a wedge-shaped groove at the top and a protrusion extending downwards from the bottom of the lifting bushing that mates with the wedge-shaped groove. The inclined surface of the protrusion contacts the wedge-shaped groove, and the movable page base plate rotates upwards along the inclined direction, thereby automatically rising when it is opened relative to the fixed page base plate. It also rotates downwards along the inclined direction, thereby automatically lowering and resetting when it is closed relative to the fixed page base plate.

4. The concealed height-adjustable hinge according to claim 3, characterized in that: The rotating assembly also includes a rotating shaft that connects the lifting bushing and the bearing seat together.

5. The concealed, height-adjustable hinge as described in claim 3, characterized in that: The inner surface of the fixed page base plate is provided with a shaft seat mounting position at one end near the movable page base plate, and the shaft seat is fixedly installed at the shaft seat mounting position.

6. The concealed height-adjustable hinge as described in claim 3, characterized in that: The inner surface of the movable page base plate has a pivot support extending from the end closest to the fixed page base plate, which has a through hole; the lifting shaft sleeve is fitted into the through hole of the pivot support.

7. The concealed height-adjustable hinge as described in claim 6, characterized in that: The through hole wall has an axial groove, and the outer wall of the lifting bushing is correspondingly provided with an axial locking post. When the locking post is engaged in the groove, the rotation of the movable page bottom plate and the rotating shaft support will drive the lifting bushing to rotate.

8. The concealed height-adjustable hinge as described in any one of claims 1-7, characterized in that: This concealed, liftable hinge is a door hinge, with its fixed hinge mounted on the door frame and its movable hinge mounted on the door panel.

Images