Side-mounted limiting hinge
By designing a side-mounted limiting hinge, using a shaft connection between a fixed plate and a rotating plate, and incorporating a slot design and a stop block for limiting, the sealing and limiting issues are resolved, thereby improving the installation stability and sealing performance of the hinge.
Patent Information
- Application Number
- CN202521701696.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-11
AI Technical Summary
Existing exposed and concealed hinges have insufficient sealing during installation, affecting airtightness and appearance integrity, and the lack of angle limiting design causes the door leaf to collide with the door frame, making it inconvenient to use.
Design a side-mounted limiting hinge, including a fixed plate and a rotating plate, connected by a pivot. The slot design reduces space occupation, the stop block limits the rotation angle, and the folding plate provides a fixed connection, improving installation stability and sealing.
The hinge installation achieves high sealing performance and limited opening, reducing space occupation and improving the heat insulation performance and ease of use of the door leaf.
Smart Images

Figure CN224679337U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hardware accessories technology, and in particular relates to a side-mounted limiting hinge. Background Technology
[0002] Currently, most exposed and concealed hinges on the market are installed by opening holes in the front of the door frame and inserting them into the door. This installation method breaks the sealing strip and installs it in sections on both sides of the hinge, resulting in insufficient sealing. At the same time, the front of the hinge opening is exposed, affecting airtightness and appearance integrity. In addition, hinges without angle limit design can cause the door leaf to collide with the door frame, making them inconvenient to use.
[0003] An existing invention patent with publication number CN105401811A discloses a hinge including a first hinge head and a second hinge head, characterized by further including a connecting block. One end face of the connecting block is arc-shaped, and the other end face is flat. One end of the first hinge head has a first groove with a flat bottom. One end of the connecting block is embedded in the first groove and hinged to the first hinge head. One end of the second hinge head has a second groove with a flat bottom. The other end of the connecting block is embedded in the second groove and hinged to the second hinge head. A gap exists between the end face of the other end of the connecting block and the bottom of the second groove. While this design limits the opening angle, it still cannot improve the sealing performance during hinge installation. Therefore, it is necessary to provide a side-mounted limiting hinge to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to design a side-mounted limiting hinge with high sealing performance and limited opening to overcome the shortcomings of the above-mentioned technology.
[0005] To address the aforementioned problems, this utility model presents a side-mounted limiting hinge, comprising a fixed plate and a rotating plate. The fixed plate includes a fixed body, with its two sides bent in the same direction to form a first rotating end and a connecting end, respectively. The connecting end of the fixed plate is used to fix it to a hinge seat. The rotating plate includes a rotating body, with one side bent to form a second rotating end and the other side being a fixed end. The first rotating end and the second rotating end are rotatably connected. The fixed end of the rotating plate is fixed to the door leaf, thereby driving the door leaf to rotate. The second rotating end has a slot that extends to the fixed end to form a movable space for the fixed body of the fixed plate to pass through, reducing the space occupied by the hinge and facilitating side-mounted hinge installation.
[0006] As a further solution of this utility model, the first rotating end of the fixed plate and the second rotating end of the rotating plate are rotatably connected by a rotating shaft. The slot divides the second rotating end into a first rotating part and a second rotating part. The front end of the first rotating end is provided with a first stop block. The first rotating end is inserted into the slot and is coaxially arranged with the first rotating part and the second rotating part for the rotating shaft to pass through. The second rotating part is provided with a second stop block at a position corresponding to the first stop block. When the rotating plate rotates to a certain angle, the first stop block and the second stop block abut against each other, limiting the rotation angle of the rotating plate and playing a limiting role.
[0007] As a further solution of this utility model, the front and rear ends of the fixing body are both provided with notches, so that the width of the connecting end of the fixing piece is wider than the width of the fixing body. When the fixing body rotates through the movable space inside the rotating body, the connecting end abuts against the rotating body, thereby increasing rotational stability.
[0008] As a further solution of this utility model, the first stop block and the first rotating end are integrally formed, and the second stop block and the second rotating end are integrally formed, which facilitates the production and transportation of the hinge.
[0009] As a further solution of this utility model, a shim is fitted on the rotating shaft and abuts against the rear end of the first rotating end and the first rotating part to reduce wear and make the fixed plate and rotating plate rotate more smoothly.
[0010] As a further solution of this utility model, the connecting end is further folded outward to form a folding plate, the folding plate has bolt holes, the fixing piece is inserted into the hinge seat through the folding plate, and is fixedly connected to the hinge seat by bolts.
[0011] As a further solution of this utility model, the fixed body is bent at a right angle to the first rotating end and the connecting end, which improves the rigidity of the fixed body and makes it more stable under force. The connecting end is bent at a right angle to the folding plate, which facilitates fixing with the hinge seat. The rotating body is bent at an obtuse angle to the second rotating end, which provides a larger opening range and movement space for the door leaf.
[0012] In summary, this utility model has at least one of the following beneficial technical effects: Firstly, this utility model describes a side-mounted limiting hinge, which has a slot at the second rotating end. The slot extends to the fixed end to form an active space for the fixed body of the fixing piece to pass through, reducing the space occupied by the hinge and facilitating concealed installation of the hinge on the side. Concealed installation of the hinge does not require cutting the sealing strip, thus improving the heat insulation performance of the door leaf.
[0013] Secondly, this utility model describes a side-mounted limiting hinge, which describes that when the rotating piece rotates to a certain angle, the first stop block and the second stop block abut against each other, limiting the rotation angle of the rotating piece and playing a limiting role. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a side-mounted limiting hinge according to this utility model; Figure 2 This is an exploded view of a side-mounted limiting hinge according to this utility model.
[0015] Reference numerals: 1. Fixing plate; 101. Fixing body; 102. First rotating end; 103. Connecting end; 104. Folding plate; 105. First stop block; 2. Rotating plate; 206. Rotating body; 201. Second rotating end; 202. Second rotating part; 203. First rotating part; 204. Second stop block; 205. Groove; 3. Rotating shaft; 4. Gasket. Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0016] like Figures 1 to 2 As shown in the figure, the side-mounted limiting hinge described in this embodiment includes a fixed piece 1 and a rotating piece 2. The fixed piece 1 includes a fixed body 101. The fixed body 101 is bent in the same direction on both sides to form a first rotating end 102 and a connecting end 103, respectively. The connecting end 103 of the fixed piece 1 is used to fix it to the hinge seat. The rotating piece 2 includes a rotating body 206. One side of the rotating body 206 is bent to form a second rotating end 201, and the other side is a fixed end. The first rotating end 102 and the second rotating end 201 are rotatably connected. The fixed end of the rotating piece 2 is fixed to the door leaf, thereby driving the door leaf to rotate. The second rotating end 201 has a slot 205. The slot 205 extends to the fixed end to form an active space for the fixed body 101 of the fixed piece 1 to pass through, reducing the space occupied by the hinge and facilitating the side-mounted hinge.
[0017] The first rotating end 102 of the fixed plate 1 and the second rotating end 201 of the rotating plate 2 are rotatably connected by a rotating shaft 3. The slot 205 divides the second rotating end 201 into a first rotating part 203 and a second rotating part 202. The front end of the first rotating end 102 is provided with a first stop block 105. The first rotating end 102 is inserted into the slot 205 and is coaxially arranged with the first rotating part 203 and the second rotating part 202 for the rotating shaft 3 to pass through. The second rotating part 202 is provided with a second stop block 204 at a position corresponding to the first stop block 105. When the rotating plate 2 rotates to a certain angle, the first stop block 105 and the second stop block 204 abut against each other, limiting the rotation angle of the rotating plate 2 and playing a limiting role.
[0018] The fixed body 101 has notches at both ends, so that the width of the connecting end 103 of the fixing piece 1 is wider than the width of the fixed body 101. When the fixed body 101 rotates through the movable space inside the rotating body 206, the connecting end 103 abuts against the rotating body 206, increasing rotational stability.
[0019] The first stop block 105 and the first rotating end 102 are integrally formed, and the second stop block 204 and the second rotating end 201 are integrally formed, which facilitates the production and transportation of the hinge.
[0020] A shim 4 is fitted on the rotating shaft 3 and abuts against the rear end of the first rotating end 102 and the first rotating part 203 to reduce wear and make the fixed plate 1 and the rotating plate 2 rotate more smoothly.
[0021] The connecting end 103 is further folded outward to form a folding plate 104. The folding plate 104 has bolt holes. The fixing piece 1 is inserted into the hinge seat through the folding plate 104 and is fixedly connected to the hinge seat by bolts.
[0022] The fixed body 101 is bent at a right angle to the first rotating end 102 and the connecting end 103, which improves the rigidity of the fixed body 101 and makes it more stable under force. The connecting end 103 is bent at a right angle to the folding plate 104, which facilitates fixing to the hinge seat. The rotating body 206 is bent at an obtuse angle to the second rotating end 201, which provides a larger opening range and movement space for the door leaf.
[0023] The working principle of the side-mounted limiting hinge provided by this utility model is as follows: The rotating shaft 3 passes through the first rotating part 203 of the rotating plate 2, the pad 4, the first rotating end 102 of the fixed plate 1 and the second rotating part 202 of the rotating plate 2 in sequence, so that the fixed plate 1 and the rotating plate 2 are rotatably connected. When the rotating plate 2 rotates to a certain angle, the first stop block 105 and the second stop block 204 abut against each other, limiting the rotation angle of the rotating plate 2 and playing a limiting role.
[0024] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.
Claims
1. A side-mounted limiting hinge, comprising a fixed plate (1) and a rotating plate (2), characterized in that, The fixing piece (1) includes a fixing body (101). The fixing body (101) is bent in the same direction on both sides to form a first rotating end (102) and a connecting end (103) respectively. The connecting end (103) of the fixing piece (1) is used to fix it to the hinge seat. The rotating piece (2) includes a rotating body (206). One side of the rotating body (206) is bent to form a second rotating end (201), and the other side is a fixed end. The first rotating end (102) and the second rotating end (201) are rotatably connected. The fixed end of the rotating piece (2) is fixed to the door leaf. The second rotating end (201) has a slot (205). The slot (205) extends to the fixed end to form an active space for the fixing body (101) of the fixing piece (1) to pass through.
2. The side-mounted limiting hinge according to claim 1, characterized in that: The first rotating end (102) of the fixed plate (1) and the second rotating end (201) of the rotating plate (2) are rotatably connected by a rotating shaft (3). The slot (205) divides the second rotating end (201) into a first rotating part (203) and a second rotating part (202). The front end of the first rotating end (102) is provided with a first stop block (105). The first rotating end (102) is inserted into the slot (205) and is coaxially arranged with the first rotating part (203) and the second rotating part (202) for the rotating shaft (3) to pass through. The second rotating part (202) is provided with a second stop block (204) at a position corresponding to the first stop block (105).
3. A side-mounted limiting hinge according to claim 2, characterized in that, The fixed body (101) has notches at both ends, so that the width of the connecting end (103) of the fixing piece (1) is wider than the width of the fixed body (101). When the fixed body (101) rotates through the movable space inside the rotating body (206), the connecting end (103) abuts against the rotating body (206).
4. A side-mounted limiting hinge according to claim 3, characterized in that, The first stop block (105) and the first rotating end (102) are integrally formed, and the second stop block (204) and the second rotating end (201) are integrally formed.
5. A side-mounted limiting hinge according to claim 3 or 4, characterized in that, A gasket (4) is fitted on the rotating shaft (3) and abuts against the rear end of the first rotating end (102) and the first rotating part (203).
6. A side-mounted limiting hinge according to claim 5, characterized in that, The connecting end (103) is further folded outward to form a folding plate (104). The folding plate (104) has bolt holes. The fixing piece (1) is inserted into the hinge seat through the folding plate (104) and is fixedly connected to the hinge seat by bolts.
7. A side-mounted limiting hinge according to claim 6, characterized in that, The fixed body (101) is bent at a right angle to the first rotating end (102) and the connecting end (103), the connecting end (103) is bent at a right angle to the folding plate (104), and the rotating body (206) is bent at an obtuse angle to the second rotating end (201).
Citation Information
Patent Citations
Hinge
CN105401811A