Rotary support with clamping function
By setting a boss and a limiting rod inside the arc-shaped clip of the rotating bracket body, combined with a rubber pad, the problem of collision noise between the upper and lower ladders when the roof ladder is closed is solved, achieving a more stable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU YUANLU AUTO PARTS CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-03
AI Technical Summary
Existing roof ladders are prone to collisions and abnormal noises when closed, and existing solutions on the market have the problem of rubber pads falling off.
A rotating bracket with clamping function is designed. By setting a boss and a limiting rod in the arc-shaped clasp of the rotating bracket body, combined with a rubber pad, the lower ladder mechanism and the upper ladder mechanism are firmly connected in the closed state to avoid collision and abnormal noise.
It effectively avoids collisions and noises between the upper and lower steps, improves the stability and firmness of the connection, and avoids the risk of the rubber pad falling off.
Smart Images

Figure CN224447643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile roof rack technology, specifically a rotating bracket with clamping function. Background Technology
[0002] Roof racks can not only be used to carry large luggage, but also greatly expand their functionality by combining them with various special accessories to meet a variety of needs such as self-driving, camping, and sports.
[0003] The ladder is a crucial component of the roof rack. Currently, four-link ladders on the market mainly consist of the ladder body assembly, upper ladder assembly, four-link (i.e., rotating bracket), lower ladder assembly, hinge seat, hinge, and fasteners. The upper and lower ladder assemblies are secured using a locking tongue on the body assembly (located in the upper right corner) and a latch on the right longitudinal beam of the lower ladder assembly. Additionally, the four rounded lugs of the rotating bracket hook the lower ladder for fixation. Due to manufacturing errors and hinge structure issues, the four rounded lugs of the rotating bracket do not actually hook the lower ladder as ideally as designed after assembly, resulting in gaps. This causes the lower and upper ladders to collide and produce abnormal noises during vehicle movement. The existing solution on the market is to add rubber pads between the upper and lower ladders to eliminate the gaps, but the drawback is that the rubber pads will fall off when the adhesive fails, thus requiring improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a rotating bracket with clamping function to solve the problem mentioned in the background art that the ladder is prone to collision and abnormal noise when it is closed.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotating bracket with clamping function, comprising an upper ladder mechanism, a connecting hinge connected to one side of the upper ladder mechanism, a lower ladder mechanism rotatably connected to the connecting hinge, and a first rotating locking component and a second rotating locking component provided at one end of the upper ladder mechanism.
[0006] The first rotary locking assembly includes a rotary support body. Both the upper and lower ladder mechanisms have slots on their frames. An arc-shaped latch is integrally connected to the top side of the rotary support body. A boss is provided on the inner wall of the arc-shaped latch. One end of the arc-shaped latch passes through the slot of the upper ladder mechanism and is located in the lower ladder mechanism frame. The boss fits against the surface of the lower ladder mechanism frame. A first limiting rod and a second limiting rod are provided on the top side of the arc-shaped latch.
[0007] Preferably, the second rotary locking assembly has the same structure as the first rotary locking assembly, and both the first and second rotary locking assemblies are symmetrically distributed about the bisector of the upper ladder mechanism.
[0008] Preferably, a rubber pad is fixedly connected to the outer wall of the upper ladder mechanism, and the rubber pad is located on one side of the opening of the upper ladder mechanism frame.
[0009] Preferably, one end of the rotating support body is rotatably connected to the ladder mechanism, and the other end of the rotating support body is rotatably connected to the ladder body assembly.
[0010] Preferably, a first limiting rod and a second limiting rod are fixedly connected to the frame of the lowering ladder mechanism, and the first limiting rod and the second limiting rod are located at the top of the bayonet of the frame of the lowering ladder mechanism.
[0011] Preferably, a second limiting rod is provided on one side of the first limiting rod, and both the first limiting rod and the second limiting rod are cylindrical structures.
[0012] Preferably, the boss has a wedge-shaped structure and is made of an elastic material.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This device uses the arc-shaped locking lugs of multiple rotating bracket bodies to limit the lower ladder mechanism. By adding a structure to the arc-shaped locking lugs, the lower ladder mechanism and the upper ladder mechanism are firmly locked together in the closed state, avoiding collision and abnormal noise.
[0015] (2) This device sets protrusions on the inner wall of the arc-shaped clasp of multiple rotating support bodies, and sets a first limiting rod and a second limiting rod on the inner wall of the lower ladder mechanism to limit the top of the arc-shaped clasp. The protrusions are supported on the top side of the clasp of the lower ladder mechanism frame, thereby ensuring the firmness of the connection between the arc-shaped clasp and the lower ladder mechanism, and avoiding collisions and abnormal noises between the lower ladder mechanism and the upper ladder mechanism.
[0016] (3) This device reduces the gap between the lower ladder mechanism and the upper ladder mechanism by setting a rubber pad between them. The rubber pad, together with the boss, the first limit rod and the second limit rod, can improve the stability of the connection between the lower ladder mechanism and the upper ladder mechanism. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a rotating bracket structure with clamping function according to the present invention;
[0018] Figure 2 This utility model relates to a rotating bracket with clamping function. Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is a front view of the main body of a rotating bracket with clamping function according to the present invention.
[0020] In the figure: 1. Lowering ladder mechanism; 2. Connecting hinge; 3. First rotating locking assembly; 31. Boss; 32. Rubber pad; 33. First limiting rod; 34. Second limiting rod; 35. Arc-shaped locking lug; 36. Rotating bracket body; 4. Upper ladder mechanism; 5. Second rotating locking assembly. Detailed Implementation
[0021] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3This utility model provides a technical solution: a rotating bracket with clamping function, including an upper ladder mechanism 4, a connecting hinge 2 connected to one side of the upper ladder mechanism 4, a lower ladder mechanism 1 rotatably connected to the connecting hinge 2, a first limiting rod 33 and a second limiting rod 34 fixedly connected to the frame of the lower ladder mechanism 1, the first limiting rod 33 and the second limiting rod 34 being located at the top of the clamping opening of the frame of the lower ladder mechanism 1, the second limiting rod 34 being provided on one side of the first limiting rod 33, both the first limiting rod 33 and the second limiting rod 34 being cylindrical structures, the second limiting rod 34 being provided on the right side of the first limiting rod 33, the arc-shaped clamping lugs can be clamped through the first limiting rod 33 and the second limiting rod 34. The horizontal and curved surfaces on the top side of the 35 are used for limiting, improving the stability of the arc-shaped locking lug 35. One end of the upper ladder mechanism 4 is equipped with a first rotary locking component 3 and a second rotary locking component 5. The second rotary locking component 5 has the same structure as the first rotary locking component 3. Both the first and second rotary locking components 3 and 5 are symmetrically distributed about the bisector of the upper ladder mechanism 4. A total of four second rotary locking components 5 and first rotary locking components 3 are provided. These four second rotary locking components 5 and first rotary locking components 3 ensure the stability of the rotation and fixation of the lower ladder mechanism 1. A rubber pad 32 is fixedly connected to the outer wall of the upper ladder mechanism 4. Rubber pad 32, located on one side of the opening of the upper ladder mechanism 4 frame, prevents excessive gaps between the upper ladder mechanism 4 and the lower ladder mechanism 1, thereby improving the stability between them. The first rotary locking assembly 3 includes a rotary support body 36, one end of which is rotatably connected to the upper ladder mechanism 4, and the other end of which is rotatably connected to the ladder body assembly. This rotary support body 36 can rotate on the ladder body assembly, which is not shown in the accompanying drawings and is prior art, so it will not be described in detail here. Both the upper ladder mechanism 4 and the lower ladder mechanism 1 frame have latches. The top side of the rotating bracket body 36 is integrally connected with an arc-shaped latch 35. The inner wall of the arc-shaped latch 35 is provided with a boss 31. One end of the arc-shaped latch 35 passes through the upper ladder mechanism 4 and is located in the latch of the lower ladder mechanism 1. The boss 31 fits against the surface of the lower ladder mechanism 1 and has a wedge-shaped structure. The boss 31 is made of elastic material. This structure allows the boss 31 to easily engage with the latch of the lower ladder mechanism 1 and also to easily separate from the latch of the lower ladder mechanism 1. The boss 31 can make the arc-shaped latch 35 more tightly connected to the lower ladder mechanism 1, thereby improving the firmness of the connection between the lower ladder mechanism 1 and the upper ladder mechanism 4. The top side of the arc-shaped latch 35 is provided with a first limiting rod 33 and a second limiting rod 34.
[0023] Working principle: When using this rotating bracket with clamping function, if it is necessary to retract and lock the lower ladder mechanism 1 and the upper ladder mechanism 4, rotate the lower ladder mechanism 1 so that it rotates closer to the upper ladder mechanism 4 through the connecting hinge 2. After the lower ladder mechanism 1 and the upper ladder mechanism 4 are in contact, the bottom of the lower ladder mechanism 1 is in contact with the rubber pad 32. At this time, the rotating bracket body 36 is retracted, so that the arc-shaped latch 35 on the rotating bracket body 36 is located in the latch of the lower ladder mechanism 1. At the same time, the protrusion 31 on the inner side of the arc-shaped latch 35 is in contact with the lower ladder mechanism 1. The first limiting rod 33 and the second limiting rod 34 are located on the top side of the arc-shaped latch 35, which can ensure the stability of the connection between the arc-shaped latch 35 and the lower ladder mechanism 1, thereby ensuring the firmness of the lower ladder mechanism 1 and the upper ladder mechanism 4 and avoiding abnormal noise.
[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rotating support with a clamping function, comprising an up-ladder mechanism (4), characterized in that: The upper ladder mechanism (4) is connected to a connecting hinge (2) on one side, and a lower ladder mechanism (1) is rotatably connected to the connecting hinge (2). One end of the upper ladder mechanism (4) is provided with a first rotating locking component (3) and a second rotating locking component (5). The first rotating locking assembly (3) includes a rotating bracket body (36), and slots are provided on the frames of the upper ladder mechanism (4) and the lower ladder mechanism (1). An arc-shaped latch (35) is integrally connected to the top side of the rotating bracket body (36). A boss (31) is provided on the inner wall of the arc-shaped latch (35). One end of the arc-shaped latch (35) passes through the upper ladder mechanism (4) and is located in the slot of the frame of the lower ladder mechanism (1). The boss (31) fits against the surface of the frame of the lower ladder mechanism (1). A first limiting rod (33) and a second limiting rod (34) are provided on the top side of the arc-shaped latch (35).
2. The rotating stand with clamping function according to claim 1, characterized in that: The second rotary locking assembly (5) has the same structure as the first rotary locking assembly (3). Both the first rotary locking assembly (3) and the second rotary locking assembly (5) are symmetrically distributed about the bisector of the upper ladder mechanism (4).
3. The rotating stand with clamping function according to claim 1, characterized in that: A rubber pad (32) is fixedly connected to the outer wall of the upper ladder mechanism (4), and the rubber pad (32) is located on one side of the opening of the frame of the upper ladder mechanism (4).
4. A rotating bracket with clamping function according to claim 1, characterized in that: One end of the rotating support body (36) is rotatably connected to the ladder mechanism (4), and the other end of the rotating support body (36) is rotatably connected to the ladder body assembly.
5. The rotating stand with clamping function according to claim 1, characterized in that: The frame of the lowering mechanism (1) is fixedly connected with a first limiting rod (33) and a second limiting rod (34), which are located at the top of the frame of the lowering mechanism (1).
6. The rotating stand with clamping function according to claim 1, characterized in that: A second limiting rod (34) is provided on one side of the first limiting rod (33), and both the first limiting rod (33) and the second limiting rod (34) are cylindrical structures.
7. The rotating stand with clamping function according to claim 1, characterized in that: The boss (31) has a wedge-shaped structure and is made of elastic material.