Opening limiting mechanism for hinge in sliding door
By designing the sliding door's middle hinge opening limit mechanism of the limit bracket and buffer block at the rear end of the sliding rail in the sliding door, the problem of the middle hinge breaking out when the sliding door is over-opened or excessive force is exerted, and the stability of the sliding door is achieved Improved performance and safety while reducing the complexity of engineering design.
Patent Information
- Application Number
- CN202420307030.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-20
AI Technical Summary
The existing sliding door mid-hinge lacks a limiting mechanism, which causes the middle hinge to easily break out when the sliding door is over-opened or excessive force is applied, affecting the stability and safety of the sliding door, and increasing the complexity of the engineering design.
Design a sliding door mid-hinge opening limit mechanism, including setting a limit bracket and a buffer block on the middle slide rail. The limit bracket is composed of a horizontal bracket and a side bracket, and the buffer block is stuck with the side bracket through the clamp joint and neck. Connect, form an L-shaped structure, and is fixed by convex welding bolts and nuts.
Effectively prevent the middle hinge from breaking out when the sliding door is opened at the maximum opening, protect the hinge roller from collision with hard objects, reduce the space occupied by the engineering design, and improve the stability and safety of the sliding door.
Smart Images
Figure CN222513433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile design and manufacture, and more specifically, to an opening limit mechanism of a hinge in a sliding door. Background Art
[0002] like Figure 1 As shown, the rear end of the middle hinge of the sliding door in the prior art does not have a limiting mechanism. In order to ensure that the middle hinge 2 will not be separated from the middle slide rail 3 when the sliding door is opened too much or too hard, the solution is to lengthen the rear end of the middle slide rail, so that the sliding door is limited at the upper hinge and lower hinge positions when the sliding door reaches the maximum opening, and then reserve a certain length at the middle slide rail position to prevent the hinge from falling out. Moreover, if the length of the middle slide rail is extended by a small amount, the middle hinge is at risk of falling out of the guide rail. If the length of the extension is large, it will occupy too much space in the X direction, resulting in no space for the rear guide wheel of the middle slide rail. At the same time, the vehicle body structure is also greatly restricted, which is not conducive to engineering design. Utility Model Content
[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a hinge opening limit mechanism for a sliding door.
[0004] The utility model discloses a sliding door middle hinge opening limit mechanism, comprising a limit bracket arranged on a middle slide rail and a buffer block arranged on the limit bracket; the limit bracket is composed of a horizontal bracket and a side bracket, the horizontal bracket is located above the end of the middle slide rail, and the side bracket is located behind the end of the middle slide rail, and the buffer block is clamped on the side bracket; the buffer block comprises a clamping joint and a buffer body, a neck portion is arranged between the clamping joint and the buffer body, and the clamping joint passes through the mounting hole on the side bracket and is clamped on the side bracket through the neck portion.
[0005] Wherein, the buffer body is in the shape of a cuboid.
[0006] Wherein, the clamping joint is in the shape of a truncated cone.
[0007] Wherein, the horizontal support and the side support form an L-shaped structure.
[0008] Wherein, two projection welding bolts are arranged above the end of the middle slide rail, and the horizontal bracket is arranged on the projection welding bolts and fixed by nuts.
[0009] Wherein, the nut is a hexagonal flange surface mounting nut.
[0010] Wherein, the buffer block is a rubber buffer block.
[0011] Compared with the prior art, the hinge opening limit mechanism of the sliding door of the utility model has the following beneficial effects:
[0012] 1. The movable middle hinge opening limit mechanism will not affect the installation of the middle hinge and sliding door;
[0013] 2. If the sliding door is opened too hard, the middle hinge will not fall off the middle slide rail or the sliding door will not fall off the vehicle body. At the same time, the buffer block installed on the limit mechanism can effectively protect the middle hinge roller from collision with hard objects, which will affect the roller life;
[0014] 3. The center hinge limit mechanism occupies less space in the X direction, which can free up more space for the layout of the rear guide wheels of the center slide rail and the vehicle body structure design. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the installation of the middle slide rail assembly in the prior art;
[0016] Figure 2 It is a structural schematic diagram of the hinge opening limit mechanism of the sliding door in Example 1;
[0017] Figure 3 It is an axonometric view of the hinge opening limit mechanism of the sliding door in Example 1;
[0018] Figure 4 It is a cross-sectional structural diagram of the hinge opening limit mechanism of the sliding door in Example 1;
[0019] Figure 5 It is an exploded structural diagram of the hinge opening limit mechanism of the sliding door in Example 1;
[0020] Figure 6 It is a schematic diagram of the installation of the middle slide rail assembly with the limiting mechanism of Example 1. DETAILED DESCRIPTION
[0021] The following will further describe the hinge opening limit mechanism of the sliding door of the utility model in combination with specific embodiments and drawings to help those skilled in the art have a more complete, accurate and in-depth understanding of the technical solution of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0022] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings. In the description of the embodiment of the utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when used, it is only for the convenience of describing the utility model 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 cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. If the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the embodiments of the present utility model, "multiple" means at least 2. In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense. For example, it 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, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0024] Example 1
[0025] like Figure 2-5As shown, the hinge opening limit mechanism of the sliding door in this embodiment includes a limit bracket 52 arranged on the middle slide rail 30 and a buffer block 51 arranged on the limit bracket 52. The limit bracket 52 is composed of a horizontal bracket 521 and a side bracket 522. The horizontal bracket 521 and the side bracket 522 form an L-shaped structure. The horizontal bracket 521 is located above the end of the middle slide rail 30, and the side bracket 522 is located behind the end of the middle slide rail 30. The buffer block 51 is clamped on the side bracket 522. Two projection welding bolts 54 are arranged above the end of the middle slide rail 30. The horizontal bracket 521 is arranged on the projection welding bolts 54 and fixed by nuts 53. In this embodiment, the projection welding bolts and nuts are standard parts, and the nuts can be installed with hexagonal flange nuts. The buffer block 51 is a rubber buffer block, such as a buffer block made of EPDM material. The buffer block 51 includes a clamping joint 511 and a buffer body 512. A constricted portion is provided between the clamping joint 511 and the buffer body 512. The clamping joint 511 passes through the mounting hole on the side bracket 522 and is clamped on the side bracket 522 through the constricted portion. The buffer body 512 is in a rectangular parallelepiped shape, and the clamping joint 511 is in a truncated cone shape.
[0026] This embodiment adds a movable middle hinge opening limit mechanism composed of a bracket and a buffer block at the rear end of the middle slide rail of the sliding door, and adds two convex welding bolts on the middle slide rail, and screws the limit mechanism directly to the middle slide rail for fixing; when assembling the sliding door, first insert the middle hinge into the slide rail from the rear end of the middle slide rail, then fix the middle hinge and the sliding door by screwing, and finally assemble and fix the limit mechanism to the middle slide rail, so that the limit mechanism will not restrict and affect the disassembly and assembly of the sliding door. At the same time, the Z-direction height of the opening limit mechanism only covers the height of the middle hinge guide wheel and should not be too long, so as not to affect the movement of the motor cable back and forth, that is, the limit mechanism needs to ensure a certain safety gap with the cable in the Z direction; Figure 6 As shown, when the door is opened vigorously, the traction force of the middle pulley rear guide wheel 10 through the pull wire 40 will cause the middle hinge 20 on the middle slide rail 30 to touch the buffer block device on the limiting mechanism 50, thereby realizing the hinge limiting. At the same time, because the buffer block is made of rubber, the contact will not cause wear and damage to the middle hinge roller. The opening limiting mechanism of the sliding door middle hinge of this embodiment will not affect the disassembly and assembly of the sliding door middle hinge, and at the same time, it can limit the middle hinge in the maximum opening state, so that the sliding door cannot fall off from the rear end of the guide rail.
Claims
1. A hinge opening limit mechanism for a sliding door, characterized in that: It includes a limit bracket arranged on the middle slide rail and a buffer block arranged on the limit bracket; the limit bracket is composed of a horizontal bracket and a side bracket, the horizontal bracket is located above the end of the middle slide rail, and the side bracket is located behind the end of the middle slide rail, and the buffer block is clamped on the side bracket; the buffer block includes a clamping joint and a buffer body, a neck portion is arranged between the clamping joint and the buffer body, and the clamping joint passes through the mounting hole on the side bracket and is clamped on the side bracket through the neck portion.
2. The hinge opening limit mechanism for a sliding door according to claim 1, characterized in that: The buffer body is in a rectangular parallelepiped shape.
3. The hinge opening limit mechanism for a sliding door according to claim 1, characterized in that: The card joint is in a truncated cone shape.
4. The sliding door hinge opening limit mechanism according to claim 1, characterized in that: The horizontal support and the side support form an L-shaped structure.
5. The sliding door hinge opening limit mechanism according to claim 1, characterized in that: Two projection welding bolts are arranged above the end of the middle slide rail, and the horizontal bracket is arranged on the projection welding bolts and fixed by nuts.
6. The sliding door hinge opening limit mechanism according to claim 5, characterized in that: The nut is a hexagonal flange mounting nut.
7. The hinge opening limit mechanism for a sliding door according to claim 1, characterized in that: The buffer block is a rubber buffer block.