Lifting hinge convenient for oil injection

Abstract

The lifting hinge comprises a first positioning plate, a second positioning plate, a rotating shaft and a rotating cylinder, an oil nozzle is arranged at one end of the rotating cylinder, and a lifting face in smooth transition is arranged on the rotating shaft and / or the rotating cylinder. The opposite end faces of the rotating shaft and / or the rotating drum are provided with the lifting faces extending in the axial direction, so that the rotating shaft and the rotating drum can move back to back or face to face in the rotating process to lift or restore the hinge; by arranging the oil nozzles, oil can be directly sprayed to the rotating shaft and gradually permeate to the inner wall of the rotating drum and the lifting face under the condition that the relative positions of the two positioning plates are not changed, operation is convenient and fast, the oil injection amount is small, the infiltration speed is low, the oil is not prone to seeping, and then the dirt phenomenon is avoided or relieved; the two positioning plates are arranged to be of a bent structure, the relative position relation of the positioning hole grooves in the positioning plates can be changed, a relatively large space is reserved for the rotating shaft and the rotating cylinder, and the supporting and fixing requirements of the heavy door plate can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting hinges, in particular to a lifting hinge which is convenient for oil injection. Background Art

[0002] A lifting hinge is a type of lifting hinge, primarily used to install and secure door panels in situations where there's no threshold at the bottom of the door but sealing is required, such as various sealed soundproof doors. To mitigate wear on the lifting hinge during use, it needs to be lubricated regularly. Currently, the lubrication process for lifting hinges typically involves adding oil to the internal rotating shaft from the separation point or upper end when the two locating plates on the hinge are relatively separated (i.e., the hinge is raised). However, when the two locating plates slide toward each other (i.e., the hinge is restored), the oil can easily be squeezed and overflow from between the plates, causing contamination. Furthermore, when the door panels are large and heavy, the lubrication operation requires the cooperation of two people, making it inconvenient. Utility Model Content

[0003] In response to the problems existing in the above-mentioned prior art, the utility model provides a lifting hinge that is easy to oil. The oil can be directly sprayed onto the rotating shaft and gradually penetrated into the inner wall of the rotating drum and the lifting surface without changing the relative positions of the two positioning plates. The operation is convenient, the oil injection amount is small and the infiltration speed is slow. The oil is not easy to seep out, thereby avoiding or slowing down the dirt phenomenon.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is as follows:

[0005] A lifting hinge for facilitating oil injection comprises a first positioning plate and a second positioning plate, wherein a rotating shaft extending in the same direction as the first positioning plate is provided on one side of the first positioning plate, and a rotating drum extending in the same direction as the second positioning plate is provided on one side of the second positioning plate, wherein the rotating drum is fitted over one end of the rotating shaft and can slide relative to the rotating shaft, and a matching lifting structure is provided between the rotating shaft and the rotating drum; the characteristics of the invention are as follows:

[0006] An oil nozzle is detachably fixed to the end of the rotating drum away from the rotating shaft, and one end of the oil nozzle extends into the rotating drum and is arranged beside the rotating shaft;

[0007] The lifting structure includes lifting surfaces with smooth transitions provided on the opposite end surfaces of the rotating shaft and / or the rotating drum. Each of the lifting surfaces is an arc surface or an inclined surface extending along the axial direction. The first positioning plate and the second positioning plate can rotate relative to each other under the action of external force and slide toward or away from each other along the axial direction under the guidance of the lifting surfaces.

[0008] As a further elaboration of the above technical solution:

[0009] In the above technical solution, the rotating shaft is provided with a base, a sliding sleeve and a connecting rod with decreasing diameters in sequence along the axial direction. The base is connected to the first positioning plate, and the end surface of the sliding sleeve facing the connecting rod is the lifting surface.

[0010] In the above technical solution, the base, the sliding sleeve and the connecting rod are integrally formed.

[0011] In the above technical solution, the inner wall of the rotating drum is a stepped structure, and its shoulder end face is the lifting surface. The inner wall with a larger aperture on the rotating drum is slidably connected to the sliding sleeve, and the inner wall with a smaller aperture is slidably connected to the connecting rod. The oil nozzle is arranged at the end with a smaller aperture on the rotating drum.

[0012] In the above technical solution, a sliding barrel is further provided on the inner wall of the rotating drum, which is fixedly connected to the rotating drum and slidably connected to the connecting rod. The oil nozzle is provided at one end thereof, and the other end extends to the side of the sliding sleeve and its end face is the lifting surface.

[0013] In the above technical solution, the rotating shaft and the rotating drum are respectively arranged beside one end of the first positioning plate and the second positioning plate and are integrally formed therewith, and a plurality of positioning hole grooves are arrayed on the first positioning plate and the second positioning plate.

[0014] In the above technical solution, the first positioning plate and the second positioning plate both include a bending connection portion and a positioning portion, the two connecting portions are respectively connected to the side walls of the rotating shaft or the rotating drum, and the two positioning portions are both provided with a plurality of positioning hole grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are: by providing axially extending lifting surfaces on the facing end faces of the rotating shaft and / or the rotating drum, the two can move away from or towards each other during rotation to raise or restore the hinge; by providing an oil nozzle, the oil can be directly sprayed onto the rotating shaft and gradually penetrate into the inner wall of the rotating drum and the lifting surface without changing the relative positions of the two positioning plates. The operation is convenient, the oil injection amount is small and the infiltration speed is slow, the oil is not easy to seep out, thereby avoiding or slowing down the dirt phenomenon; by setting the two positioning plates as a bent structure, the relative position relationship of the positioning holes thereon can be changed, and a relatively large space is reserved for the rotating shaft and the rotating drum, which can meet the support and fixation needs of heavy door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of a partially dissected front view of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a partially dissected structure of another embodiment of the present invention;

[0019] Figure 4 It is a side structural schematic diagram of an embodiment of the present utility model.

[0020] In the figure: 10, first positioning plate; 20, rotating shaft; 21, base; 22, sliding sleeve; 23, connecting rod; 30, second positioning plate; 40, rotating drum; 50, oil nozzle; 60, sliding barrel; 1, lifting surface; 2, positioning hole groove; 3, connecting part; 4, positioning part. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] The embodiments described with reference to the accompanying drawings are illustrative and intended to explain the present application, and should not be construed as limiting the present application. In the description of this application, it should be understood that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features referred to. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" and "a plurality" mean two or more, unless otherwise specifically defined. In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly below or diagonally below the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0023] like Figure 1As shown, a lifting hinge for facilitating oil filling comprises a first positioning plate 10 and a second positioning plate 30. A rotating shaft 2 extending in the same direction as the first positioning plate 10 is provided on one side of the first positioning plate 10, and a rotating drum 40 extending in the same direction as the second positioning plate 30 is provided on one side of the second positioning plate 30. The rotating drum 40 is matched with one end of the rotating shaft 20 and can slide relative to the rotating shaft 20. A matching lifting structure is provided between the rotating shaft 20 and the rotating drum 40. The end of the rotating drum 40 away from the rotating shaft 20 is detachably fixed with an oil nozzle 50. One end of the oil nozzle 50 extends into the rotating drum 40 and is provided on the rotating shaft 20. ; the lifting structure includes a lifting surface 1 with a smooth transition provided on the opposite end surfaces of the rotating shaft 20 and / or the rotating drum 40, each lifting surface 1 is an arc surface or an inclined surface extending in the axial direction, and the first positioning plate 10 and the second positioning plate 30 can rotate relative to each other under the action of external force and slide toward or away from each other in the axial direction under the guidance of the lifting surface 1; the rotating shaft 20 and the rotating drum 40 are respectively provided on the side of one end of the first positioning plate 10 and the second positioning plate 30 and are integrally formed with them, and a plurality of positioning hole grooves 2 are arrayed on the first positioning plate 10 and the second positioning plate 30.

[0024] The oil nozzle 50 can only be opened toward one side and has good sealing performance, which belongs to the existing technology and its specific structure will not be described in detail here.

[0025] During use, external force pushes the door panel to drive the first positioning plate 10 and the second positioning plate 30 to rotate relative to each other, and synchronously drives the rotating shaft 20 and the rotating drum 40 to rotate relative to each other. Under the guidance of the lifting surface 1, the first positioning plate 10 and the second positioning plate 30 move away from or close to each other to realize the lifting function; when filling oil, there is no need to change the relative positions of the two positioning plates. The refueling gun is directly inserted into the oil nozzle 50 to refuel. The oil is directly sprayed onto the end of the rotating shaft 20 and gradually penetrates into the inner wall of the rotating drum 40 and the lifting surface 1. The operation is convenient, the oil filling amount is small and the infiltration speed is slow. The oil is not easy to seep out, thereby avoiding or slowing down the dirt phenomenon.

[0026] like Figure 2 As shown, in one embodiment of the present invention, the rotating shaft 20 is axially provided with a base 21, a sleeve 22, and a connecting rod 23, each having a decreasing diameter. The base 21 is connected to the first connecting plate 10, and the end surface of the sleeve 22 facing the connecting rod 23 serves as the lifting surface 1. The inner wall of the rotating cylinder 40 has a stepped structure, and its shoulder end surface serves as the lifting surface 1. The inner wall of the rotating cylinder 40 with a larger aperture is slidably connected to the outer wall of the sleeve 22, while the inner wall with a smaller aperture is slidably connected to the connecting rod 23. The oil nozzle 50 is located at the end of the rotating cylinder 40 with a smaller aperture. In this embodiment, the base 21, sleeve 22, and connecting rod 23 are integrally formed.

[0027] like Figure 3 As shown, in another embodiment of the present invention, a sliding barrel 60 is provided between the rotating drum 40 and the rotating shaft 20. The sliding barrel 60 is fixedly connected to the rotating drum 40 and is slidably connected to the connecting rod 23. An oil nozzle 50 is provided at one end thereof, and the other end extends to the side of the sliding sleeve 22 and its end face is a lifting surface 1.

[0028] like Figure 4 As shown, in another embodiment of the present invention, the first positioning plate 10 and the second positioning plate 30 both include a bent connecting portion 3 and a positioning portion 4, the two connecting portions 3 are respectively connected to the side walls of the rotating shaft 20 or the rotating drum 40, and the two positioning portions 4 are provided with a plurality of positioning hole grooves 2.

[0029] It is understandable that the bending structure can change the relative position relationship of the positioning hole grooves 2 on the first positioning plate 10 and the third positioning plate 30, and reserve a relatively large space for the rotating shaft 20 and the rotating drum 40 to meet the support and fixation needs of the heavy door panel.

[0030] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A lifting hinge for facilitating oil injection, comprising a first positioning plate and a second positioning plate, wherein a rotating shaft extending in the same direction as the first positioning plate is provided on one side of the first positioning plate, and a rotating drum extending in the same direction as the second positioning plate is provided on one side of the second positioning plate, the rotating drum being matingly sleeved on one end of the rotating shaft and capable of sliding relative thereto, and a matching lifting structure being provided between the rotating shaft and the rotating drum; characterized in that: An oil nozzle is detachably fixed to the end of the rotating drum away from the rotating shaft, and one end of the oil nozzle extends into the rotating drum and is arranged beside the rotating shaft; The lifting structure includes lifting surfaces with smooth transitions provided on the opposite end surfaces of the rotating shaft and / or the rotating drum. Each of the lifting surfaces is an arc surface or an inclined surface extending along the axial direction. The first positioning plate and the second positioning plate can rotate relative to each other under the action of external force and slide toward or away from each other along the axial direction under the guidance of the lifting surfaces.

2. A lifting hinge that is easy to oil according to claim 1, characterized in that: The rotating shaft is provided with a base, a sliding sleeve and a connecting rod in sequence along the axial direction, the base is connected to the first positioning plate, and the end surface of the sliding sleeve facing the connecting rod is the lifting surface.

3. A lifting hinge that facilitates oil filling according to claim 2, characterized in that: The base, the sliding sleeve and the connecting rod are integrally formed.

4. The lifting hinge for easy oil filling according to claim 2, characterized in that: The inner wall of the rotating drum is a stepped structure, and its shoulder end surface is the lifting surface. The inner wall with a larger aperture on the rotating drum is slidably connected to the sliding sleeve, and the inner wall with a smaller aperture is slidably connected to the connecting rod. The oil nozzle is provided at the end with a smaller aperture on the rotating drum.

5. The lifting hinge that is easy to oil-fill according to claim 2, characterized in that: A sliding barrel is further provided on the inner wall of the rotating drum. The sliding barrel is fixedly connected to the rotating drum and slidably connected to the connecting rod. The oil nozzle is provided at one end of the sliding barrel, and the other end extends to the side of the sliding sleeve and its end surface is the lifting surface.

6. A lifting hinge for easy oil filling according to any one of claims 1 to 5, characterized in that: The rotating shaft and the rotating drum are respectively arranged beside one end of the first positioning plate and the second positioning plate and are integrally formed therewith. The first positioning plate and the second positioning plate are both arrayed with a plurality of positioning hole grooves.

7. The lifting hinge for easy oil filling according to claim 6, characterized in that: The first positioning plate and the second positioning plate both include a connecting portion and a positioning portion that are bent and connected. The two connecting portions are respectively connected to the side walls of the rotating shaft or the rotating drum. The two positioning portions are both provided with a plurality of positioning hole grooves.

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