Hinge capable of positioning opening and closing angle
By introducing a friction positioning surface and an opening and closing groove structure into the hinge, the problem of the hinge's inability to fix the angle is solved, achieving adjustable and low-cost positioning of the hinge and avoiding door panel collisions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-20
AI Technical Summary
Existing hinges cannot maintain a fixed angle after opening, causing the door and frame to collide, or requiring additional fixing struts or high-cost products for positioning.
A hinge shaft with a friction positioning surface and an opening and closing groove structure were designed. The hinge angle positioning is achieved by the friction positioning surface of the hinge shaft abutting against the inner wall of the connecting part, combined with the sliding of the opening and closing groove and the opening and closing abutting protrusion.
This design allows for adjustable and fixed hinge angles, reducing product costs and preventing damage to the door panel and frame.
Smart Images

Figure CN224017044U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hinge technical field, especially a hinge that can position open and close angle. BACKGROUND
[0002] Hinge, also known as hinge, is used to connect two solids and allow the relative rotation between two. Hinge is composed of movable components, or by foldable material. Mainly installed on the door and window, cabinet.
[0003] At present, most of the hinges cannot be fixed after opening, causing the door and the frame to knock, or need to be fixed with a support rod, or use an arbitrary stop hinge to position, but the cost of such products is high. INVENTION CONTENTS
[0004] The utility model discloses a hinge that can position open and close angle to solve the technical problems in the background art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A hinge that can position open and close angle, comprising hinge left, hinge right and hinge shaft, the hinge left comprises connecting part one, the hinge right comprises connecting part two, the hinge shaft is fixedly installed in the installation cavity of connecting part two and extends to the outside of connecting part two, the end of the hinge shaft extends into the installation cavity of connecting part one, the end of the hinge shaft is provided with a friction positioning surface, the friction positioning surface abuts with the inner wall of the installation cavity of connecting part one, the side end surface of connecting part one abuts with the side end surface of connecting part two, the side end surface of connecting part one is provided with an opening and closing slot, the side end surface of connecting part two is fixedly connected with an opening and closing abutting block, the opening and closing abutting block is in the opening and closing slot and slides in the opening and closing slot.
[0007] The following is the further defined technical scheme of the utility model, the angle of the opening and closing slot is a, wherein, 60°≤a≤180°.
[0008] The following is the further defined technical scheme of the utility model, along the axial direction of the connecting part one, the groove depth of the opening and closing slot is equal to the thickness of the opening and closing abutting block.
[0009] The following is the further defined technical scheme of the utility model, the hinge shaft penetrates the installation cavity of connecting part two, and the hinge shaft and the installation cavity of connecting part two are interference connected.
[0010] The hinge left comprises a hinge leaf left and two connecting parts one, the two connecting parts one are fixedly arranged at the two sides of the hinge leaf left, the hinge right comprises a hinge leaf right and a connecting part two, the connecting part two is fixedly arranged at the middle position of the hinge leaf right, and the two connecting parts one are located at the two sides of the connecting part two.
[0011] The hinge left comprises a hinge leaf left and two connecting parts one, the two connecting parts one are fixedly arranged at the two sides of the hinge leaf left, the hinge right comprises a hinge leaf right and a connecting part two, the connecting part two is fixedly arranged at the middle position of the hinge leaf right, and the two connecting parts one are located at the two sides of the connecting part two.
[0012] Compared with the prior art, the hinge has the following technical effects:
[0013] The hinge shaft with the friction positioning surface is designed, and the positioning of the hinge is realized, so that the overall structure is simple, and the product cost is reduced.
[0014] The utility model is further explained below in combination with the drawings and the embodiments. DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without paying creative labor for the person skilled in the art.
[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the three-dimensional structure schematic diagram of another view of the utility model;
[0018] Figure 3 It is the structure split schematic diagram of the utility model;
[0019] Figure 4 It is the structure split schematic diagram of another view of the utility model;
[0020] Figure 5 It is the main view structure split schematic diagram of the hinge in one opening and closing angle in the utility model;
[0021] Figure 6 It is Figure 5 The main view structure split schematic diagram of the hinge right after being positioned;
[0022] Figure 7is another opening and closing angle of the hinge of the utility model main view structure split schematic diagram;
[0023] Figure 8 is Figure 7 The hinge right after hinge positioning main view structure split schematic diagram.
[0024] The figure mark: 1, hinge left; 101, connecting part one; 102, page piece left; 2, hinge right; 201, connecting part two; 202, page piece right; 3, hinge shaft; 4, friction positioning surface; 5, opening and closing groove; 6, opening and closing abutment bump. DETAILED DESCRIPTION
[0025] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the following disclosed specific embodiments.
[0026] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0027] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0028] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication or interaction between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0029] As shown in Figures 1-8 The utility model provides a hinge that can position the opening and closing angle, which is mainly composed of hinge left 1, hinge right 2 and hinge shaft 3.
[0030] Hinge left 1 includes leaf left 102 and two connecting parts one 101, and the two connecting parts one 101 are fixedly arranged on both sides of leaf left 102. Hinge right 2 includes leaf right 202 and connecting part two 201, and connecting part two 201 is fixedly arranged at the middle position of leaf right 202. When hinge left 1 and hinge right 2 are hinged through hinge shaft 3, the two connecting parts one 101 are respectively located on both sides of connecting part two 201.
[0031] Hinge shaft 3 is fixedly installed in the mounting cavity of connecting part two 201 and extends to the outside of connecting part two 201, specifically: hinge shaft 3 penetrates the mounting cavity of connecting part two 201, and hinge shaft 3 is connected with the mounting cavity of connecting part two 201 in an interference fit.
[0032] The two ends of hinge shaft 3 respectively extend into the mounting cavities of the two connecting parts one 101, and one or both of the two end portions of hinge shaft 3 are provided with a friction positioning surface 4, which abuts against the inner wall of the mounting cavity of connecting part one 101.
[0033] The side end face of connecting part one 101 abuts against the side end face of connecting part two 201, the side end face of connecting part one 101 is provided with an opening and closing groove 5, the side end face of connecting part two 201 is fixedly connected with an opening and closing abutting protrusion 6, the opening and closing abutting protrusion 6 is located in the opening and closing groove 5 and slides in the opening and closing groove 5. Along the axial direction of connecting part one 101, the groove depth of opening and closing groove 5 is equal to the thickness of opening and closing abutting protrusion 6, and along the circumferential direction, the two side end faces of opening and closing abutting protrusion 6 abut against or separate from the two side groove walls of opening and closing groove 5. The angle of opening and closing groove 5 is a, wherein 60° ≤ a ≤ 180°. It should be noted that in actual application, the hinge product of the embodiment can be opened and closed by 120°, 135° and 150°.
[0034] When the equipment door connected with the hinge is opened, it can be directly opened to the required angle and fixed, which is convenient for operation and avoids knocking and the like between the door plate and the box (frame).
[0035] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art, without departing from the technical scheme of the present application, can make many possible changes and modifications to the technical scheme of the present application by using the disclosed methods and technical contents, or modify equivalent embodiments. Therefore, any equivalent changes made according to the shape, structure and principle of the present application, without departing from the technical scheme of the present application, should be covered by the protection scope of the present application.
Claims
1. A hinge with a positionable opening and closing angle, characterized in that, The device includes a left hinge (1), a right hinge (2), and a hinge shaft (3). The left hinge (1) includes a first connecting part (101), and the right hinge (2) includes a second connecting part (201). The hinge shaft (3) is fixedly installed in the mounting cavity of the second connecting part (201) and extends to the outside of the second connecting part (201). The end of the hinge shaft (3) extends into the mounting cavity of the first connecting part (101), and the end of the hinge shaft (3) is provided with a friction positioning surface. (4) The friction positioning surface (4) abuts against the inner wall of the mounting cavity of the first connecting part (101). The side end face of the first connecting part (101) abuts against the side end face of the second connecting part (201). The side end face of the first connecting part (101) is provided with an opening and closing groove (5). The side end face of the second connecting part (201) is fixedly connected to an opening and closing abutting protrusion (6). The opening and closing abutting protrusion (6) is located in the opening and closing groove (5) and slides in the opening and closing groove (5).
2. The hinge with a positionable opening angle as described in claim 1, characterized in that, The angle of the opening and closing groove (5) is a, where 60°≤a≤180°.
3. A hinge with a positionable opening and closing angle as described in claim 1, characterized in that, Along the axial direction of the connecting part (101), the groove depth of the opening and closing groove (5) is equal to the thickness of the opening and closing abutment protrusion (6).
4. A hinge with a positionable opening angle as described in claim 1, characterized in that, The hinge shaft (3) passes through the mounting cavity of the second connecting part (201) and the hinge shaft (3) is interference-fitted with the mounting cavity of the second connecting part (201).
5. A hinge with a positionable opening and closing angle as described in claim 1, characterized in that, The left hinge (1) includes a left leaf piece (102) and two connecting parts (101), which are fixedly disposed on both sides of the left leaf piece (102). The right hinge (2) includes a right leaf piece (202) and a connecting part (201), which is fixedly disposed in the middle of the right leaf piece (202). The two connecting parts (101) are located on both sides of the connecting part (201).
6. A hinge with a positionable opening and closing angle as described in claim 1, characterized in that, Along the circumferential direction, the two end faces of the opening and closing abutting protrusion (6) abut against or separate from the two side groove walls of the opening and closing groove (5).