Middle hinge device of sliding door and processing technology of middle hinge device
By setting connection brackets on both sides of the weighing bracket of the hinge in the sliding door, the problem that the hinges in the existing sliding doors cannot take into account both the electric sliding doors, and the maximum and commonality of electric drive and ordinary hinges are achieved, reducing costs and production cycles.
Patent Information
- Application Number
- CN202510332833.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-17
AI Technical Summary
The existing sliding doors have the hinges that cannot take into account both the electric sliding doors and require a new hinge device, which is costly and difficult to meet the growing user needs.
A mid-hinge connection bracket is provided on both sides of the mid-hinge weighing bracket, which is used to connect the electric drive pull wire to maximize the common rate of the mid-hinge electric drive of the sliding door.
The hinge electric drive and ordinary commonality rate of sliding doors is maximized, which reduces R&D and manufacturing costs, shortens the production cycle, makes operation more convenient, and adapts to different configurations of sliding doors.
Smart Images
Figure CN120159255A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of hinges in sliding doors, and more specifically, it relates to a hinge device in a sliding door and its processing technology. Background Art
[0002] A car door hinge is a component connecting the car door and the vehicle body. On the one hand, the car door hinge bears the weight of the car door, and on the other hand, the car door hinge serves as a hub for opening or closing the car door. Since a sliding door can reduce the space in the width direction of the vehicle body when opened, it is widely used in models such as small passenger cars and mini cargo vans. Generally, the car door and the vehicle body are connected by three hinges, namely upper, middle, and lower hinges. Among them, the middle hinge of the sliding door is a component that cooperates with the middle guide rail of the vehicle body. On the one hand, the middle hinge of the sliding door bears the weight of the sliding door, and on the other hand, the middle hinge of the sliding door serves as a hub for opening or closing the sliding door.
[0003] However, the existing middle hinges of sliding doors cannot accommodate electric sliding doors, and new hinge devices need to be developed, resulting in high costs and difficulty in meeting the growing user needs.
[0004] Therefore, a solution is needed to solve this problem. Summary of the Invention
[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a hinge device in a sliding door and its processing technology. By setting middle hinge connection brackets on both sides of the middle hinge weighing bracket for the wire ropes of two sections of electric drives, the generalization rate of the electric drive of the sliding door middle hinge and the common one can be maximized.
[0006] The above technical purpose of the present invention is achieved through the following technical solutions: A hinge device in a sliding door includes a middle hinge mounting seat and a middle hinge rotating arm mounted on the middle hinge mounting seat. The middle hinge rotating arm is rotatably connected to the hinge mounting seat. A middle hinge load-bearing bracket is mounted on the middle hinge rotating arm, and middle hinge connection brackets are arranged on both sides of the middle hinge load-bearing bracket. The middle hinge connection brackets are used to connect the electric drive wire ropes.
[0007] The present invention is further arranged as: The middle hinge load-bearing bracket and the middle hinge rotating arm are fixedly connected by bolts.
[0008] The present invention is further arranged as: Three threaded holes for installation are provided on the middle hinge mounting seat.
[0009] The above technical object of the present invention is also achieved by the following technical solution: A processing technology for the middle hinge device of a sliding door. Step S1: Processing of the middle hinge mounting seat: The material of the middle hinge mounting seat of the sliding door is QSTE420TM, the surface treatment method is black electrophoresis, and it is made by forging process. Its surface is connected to the vehicle body by three M8 bolts, and an M6 adjusting bolt and an adjusting bolt sheath (PA66) are installed on it;
[0010] Step S2: Processing of the middle hinge swing arm: The material of the middle hinge swing arm is selected as QSTE420TM, the surface treatment method is black electrophoresis, and it is made by forging process. The middle hinge swing arm is connected to the middle hinge mounting seat by a riveting shaft process. The material of the middle hinge shaft is ML40CR, the middle hinge torsion spring is made of spring stainless steel wire, the self-lubricating bushing is a copper-backed bushing, and the middle hinge shaft sheath is PA66;
[0011] Step S3: Processing of the middle hinge load-bearing bracket: The material of the middle hinge load-bearing bracket is selected as QSTE420TM, the surface treatment method is black electrophoresis, and it is made by stamping process. It is connected to the middle hinge swing arm by three M8 bolts;
[0012] Step S4: Processing of the middle hinge connecting bracket: The material of the middle hinge connecting bracket is selected as SAPH440, the surface treatment method is black electrophoresis, and it is made by stamping process. It is riveted to the middle hinge load-bearing bracket through a roller; Step S5: Installation: Install the middle hinge mounting seat, the middle hinge swing arm, the middle hinge load-bearing bracket and the middle hinge connecting bracket precisely according to the above steps, and then use three M8 bolts and three threaded holes arranged on the mounting seat to tighten them on the sliding door with a force of 33 ± 3 Nm. Check that there are no defects on the surface that affect installation, function and aesthetics. After the inspection is completed, install the middle hinge on the rigid mechanism and determine the movement trajectory of the sliding door. Hang the end of the wire rope on the middle hinge connecting bracket. After the installation is completed, pull the sliding door to check the smoothness of the sliding door. After the debugging is completed, open and close the electric sliding door switch, and the electric sliding door hinge can work normally
[0013] In summary, the present invention has the following beneficial effects:
[0014] 1. By arranging middle hinge connecting brackets on both sides of the middle hinge load-bearing bracket for the wire ropes of the two-section electric drive, the present invention can maximize the general utilization rate of the electric drive of the sliding door middle hinge, not only reducing the R & D cost and manufacturing cost, but also shortening the production cycle of the electric drive middle hinge;
[0015] 2. The operation of the present invention is more convenient, making it more labor-saving for the staff to install the end of the wire rope. At the same time, for the electric drive of the sliding door middle hinge and the ordinary middle hinge, only an additional electric drive bracket is needed, which can adapt to sliding doors with different configurations. Description of the Drawings
[0016] Figure 1 This is the overall structural schematic diagram of the present invention.
[0017] In the figure: 1. Middle hinge mounting seat; 2. Middle hinge rotating arm; 3. Middle hinge load-bearing bracket; 4. Middle hinge connecting bracket. Specific embodiments
[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0020] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0022] A middle hinge device for a sliding door, as Figure 1 shown, includes a middle hinge mounting seat 1 and a middle hinge rotating arm 2 mounted on the middle hinge mounting seat 1. The middle hinge rotating arm 2 is rotatably connected to the hinge mounting seat. A middle hinge load-bearing bracket 3 is mounted on the middle hinge rotating arm 2. Middle hinge connecting brackets 4 are provided on both sides of the middle hinge load-bearing bracket 3. The middle hinge connecting brackets 4 are used to connect the electric drive wire rope. The middle hinge load-bearing bracket 3 is fixedly connected to the middle hinge rotating arm 2 by bolts. Three threaded holes for installation are provided on the middle hinge mounting seat 1.
[0023] A processing technology for a middle hinge device of a sliding door, step S1: Processing of the middle hinge mounting seat 1: The material of the middle hinge mounting seat 1 of the sliding door is QSTE420TM, the surface treatment method is black electrophoresis, and it is made by forging process. Its surface is connected to the vehicle body by three M8 bolts, and an M6 adjusting bolt and a PA66 adjusting bolt sheath are installed on it;
[0024] Step S2: Machining of the middle hinge swing arm 2: The material of the middle hinge swing arm 2 is selected as QSTE420TM, the surface treatment method is black electrophoresis, and it is made by forging process. The middle hinge swing arm 2 is connected with the middle hinge mounting seat 1 by riveting shaft process. The material of the middle hinge shaft is ML40CR, the middle hinge torsion spring is made of spring stainless steel wire, the self-lubricating bushing is a copper-backed bushing, and the middle hinge shaft sheath is PA66;
[0025] Step S3: Machining of the middle hinge load-bearing bracket 3: The material of the middle hinge load-bearing bracket 3 is selected as QSTE420TM, the surface treatment method is black electrophoresis, and it is made by stamping process. It is connected with the middle hinge swing arm 2 by three M8 bolts;
[0026] Step S4: Machining of the middle hinge connecting bracket 4: The material of the middle hinge connecting bracket 4 is selected as SAPH440, the surface treatment method is black electrophoresis, and it is made by stamping process. It is riveted with the middle hinge load-bearing bracket 3 through a roller;
[0027] Step S5: Installation: Install the middle hinge mounting seat 1, the middle hinge swing arm 2, the middle hinge load-bearing bracket 3 and the middle hinge connecting bracket 4 precisely according to the above steps. Then, through three M8 bolts and three threaded holes arranged on the mounting seat, tighten it on the sliding door with a force of 33 ± 3 Nm. Check that the surface is not allowed to have any defects that affect installation, function and aesthetics, and the surface shall not have rust, paint peeling, etc.; After the inspection is completed, install the middle hinge (including the upper and lower hinges and the guide rail) on the rigid mechanism and determine the movement trajectory of the sliding door. The operator hangs the end of the wire rope on the middle hinge connecting bracket 4. After the installation is completed, pull the sliding door to check the smoothness of the sliding door. After the debugging is completed, open and close the electric sliding door switch, and the electric sliding door hinge can work normally.
[0028] Through the above structure, processing technology and installation steps, the present invention sets the middle hinge connecting bracket 4 on both sides of the middle hinge weighing bracket for the wire ropes of the two-section electric drive, which can maximize the commonization rate of the electric drive of the sliding door middle hinge. It not only reduces the R & D cost and manufacturing cost, but also can shorten the production cycle of the electric drive middle hinge; the operation is more convenient, making it more labor-saving for the staff to install the end of the wire rope. At the same time, only an additional electric drive bracket is needed for the electric drive of the sliding door middle hinge and the ordinary middle hinge, which can adapt to sliding doors with different configurations.
[0029] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A hinge device for a sliding door, characterized in that: The invention comprises a middle hinge mounting seat (1) and a middle hinge rotating arm (2) mounted on the middle hinge mounting seat (1), wherein the middle hinge rotating arm (2) is rotatably connected to the hinge mounting seat, a middle hinge load-bearing bracket (3) is mounted on the middle hinge rotating arm (2), middle hinge connecting brackets (4) are arranged on both sides of the middle hinge load-bearing bracket (3), and the middle hinge connecting bracket (4) is used to connect an electric drive cable.
2. A sliding door hinge device according to claim 1, characterized in that: The middle hinge load-bearing bracket (3) is fixedly connected to the middle hinge rotating arm (2) by means of bolts.
3. The sliding door hinge device according to claim 1, characterized in that: The middle hinge mounting seat (1) is provided with three threaded holes for mounting.
4. The processing technology of the hinge device of a sliding door according to claim 1 is characterized in that: Step S1: Processing of the middle hinge mounting seat (1): The sliding door middle hinge mounting seat (1) is made of QSTE420TM, with a surface treatment of black electrophoresis, and is made by forging technology. Its surface is connected to the vehicle body by three M8 bolts, and an M6 adjusting bolt and an adjusting bolt sleeve (PA66) are installed thereon; Step S2: Processing of the middle hinge arm (2): The material of the middle hinge arm (2) is QSTE420TM, the surface treatment method is black electrophoresis, and it is made by forging process. The middle hinge arm (2) is connected to the middle hinge mounting seat (1) by riveting shaft process. The material of the middle hinge shaft is ML40CR, the middle hinge torsion spring is spring stainless steel wire, the self-lubricating bushing is a copper back bushing, and the middle hinge shaft sleeve is PA66; Step S3: Processing of the middle hinge load-bearing bracket (3): The middle hinge load-bearing bracket (3) is made of QSTE420TM material, with a black electrophoresis surface treatment method, and is made by a stamping process and connected to the middle hinge rotating arm (2) by three M8 bolts; Step S4: Processing of the middle hinge connecting bracket (4): The middle hinge connecting bracket (4) is made of SAPH440 material, with a surface treatment method of black electrophoresis, and is manufactured by a stamping process and riveted to the middle hinge load-bearing bracket (3) by a roller; Step S5: Installation: Install the middle hinge mounting base (1), the middle hinge arm (2), the middle hinge load-bearing bracket (3) and the middle hinge connecting bracket (4) precisely according to the above steps, and then tighten them on the sliding door with a force of 33±3Nm through three M8 bolts and three threaded holes set on the mounting base. Check that there are no defects on the surface that affect the installation, function and aesthetics. After the inspection is completed, install the middle hinge on the rigid structure and determine the movement trajectory of the sliding door. Hang the pull wire end on the middle hinge connecting bracket (4). After the installation is completed, pull the sliding door to check the stability of the sliding door. After the debugging is completed, turn on and off the electric sliding door switch, and the electric sliding door hinge can work normally.