Rotating blade plate

Abstract

The utility model discloses a rotating blade plate, and relates to the technical field of automobile door hinges. According to the scheme, the device comprises a fixed blade plate fixed on a fixed body; the movable blade plate is rotationally connected with the fixed blade plate and is used for connecting a movable body; the two ends of the damping cylinder are hinged to the fixed blade plate and the movable blade plate correspondingly, and the damping cylinder is used for limiting the rotating speed of the movable blade plate. A damping cylinder is installed between a fixed blade plate and a movable blade plate, a piston shaft is connected into the damping cylinder in a telescopic mode, a speed reduction piston is installed at the end of the piston shaft, and when the movable blade plate rotates on the fixed blade plate, the piston shaft needs to be driven to push the speed reduction piston to slide in the damping cylinder; the sliding speed of the speed reduction piston in the damping cylinder can be limited, and therefore the rotating speed of the movable vane plate is passively limited.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile door hinges, in particular to a rotating blade. Background Art

[0002] The rotating blade is also called a hinge. It is mostly used for connecting movable parts in automobiles, such as doors and hoods. For example, the authorization announcement number is: CN106223755B, which discloses a car door hinge with a limiting function, including a fixed seat, a rotating blade, a fixed shaft, a needle roller, a hoop spring, a sleeve and an end cover. The fixed seat is fixedly mounted on both ends of the fixed shaft, and the rotating blade is movably mounted on both ends of the fixed shaft and located on the inner side of the fixed seat. The fixed shaft is provided with a limiting groove, and the needle roller is movably mounted in the limiting groove. The hoop spring and the sleeve are sequentially sleeved on the fixed shaft and the needle roller, and the end covers are fixedly mounted on both ends of the sleeve respectively. A guide groove is provided on the inner side of the end cover, and the two ends of the needle roller are respectively accommodated in the guide groove. A first latching tooth is provided on the outer side of the end cover, and a second latching tooth is provided on the inner side of the rotating blade corresponding to the first latching tooth of the end cover, and the first latching tooth of the end cover is meshed with the second latching tooth of the rotating blade.

[0003] This patent limits the rotation angle of the rotating blade by setting a limit groove on the rotating blade and cooperating with the limit limit column on the fixed seat. If used on the car door, the opening angle of the car door can be limited to prevent the car door from opening too wide and affecting the surrounding people or objects. However, the current rotating blades used on car doors still have some safety hazards. The rotation speed of the current rotating blades cannot be passively controlled. When the user opens and closes the car door vigorously, the rotating blade also rotates quickly accordingly. This results in the car door often opening too quickly, and pedestrians or vehicles behind the car cannot avoid it in time, and collide with pedestrians or vehicles. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of the present invention is to provide a rotating blade to passively limit the rotation speed of the rotating blade and reduce safety hazards.

[0006] (II) Technical solution

[0007] In order to achieve the above technical purpose, the utility model provides a rotating blade:

[0008] It includes:

[0009] A fixed blade is fixed on the fixed body;

[0010] The movable blade is rotatably connected to the fixed blade and is used to connect the movable body;

[0011] The damping cylinder has two ends respectively hinged to the fixed blade and the movable blade, and is used to limit the rotation speed of the movable blade.

[0012] Preferably, a first connection seat is fixed on the outer surface of the fixed blade, a second connection seat matching with the first connection seat is fixed on the outer surface of the movable blade, and the first connection seat is rotatably connected with the second connection seat.

[0013] Preferably, a connecting shaft is inserted into the first connecting seat, and the second connecting seat is rotatably connected to the first connecting seat via the connecting shaft, one end of the connecting shaft is T-shaped, and the other end of the connecting shaft is threadedly connected with a nut.

[0014] Preferably, a first fixing pile is provided on an outer surface of the fixing blade.

[0015] Preferably, a second fixing pile is provided on the outer surface of the movable blade.

[0016] Preferably, the end of the damping cylinder is telescopically sealed and connected to a piston shaft, a deceleration piston is fixed to the end of the piston shaft, and through holes are evenly opened on the outer surface of the deceleration piston, and a buffer body is filled in the damping cylinder.

[0017] Preferably, a first connecting pile is fixed to one end of the damping cylinder away from the piston shaft, a second connecting pile is fixed to one end of the piston shaft away from the deceleration piston, and the first connecting pile and the second connecting pile are hinged to the first fixed pile and the second fixed pile respectively.

[0018] Preferably, a first oval hole is fixed on the outer surface of the fixed blade, and a second oval hole is fixed on the outer surface of the movable blade.

[0019] It can be seen from the above technical solutions that the present application has the following beneficial effects:

[0020] A damping cylinder is installed between the fixed vane and the movable vane, a piston shaft is telescopically connected in the damping cylinder, and a deceleration piston is installed at the end of the piston shaft. When the movable vane rotates on the fixed vane, the piston shaft needs to be driven to push the deceleration piston to slide in the damping cylinder. By adding a buffer body in the damping cylinder, the sliding speed of the deceleration piston in the damping cylinder can be limited, thereby passively limiting the rotation speed of the movable vane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of a rotating blade provided by the utility model;

[0023] Figure 2 A schematic diagram of the exploded structure of a rotating blade provided by the utility model;

[0024] Figure 3 A schematic cross-sectional structure diagram of a rotating blade provided by the utility model;

[0025] Figure 4 The utility model is a partial cross-sectional structural schematic diagram of a damping cylinder of a rotating blade.

[0026] Description of the drawings: 1. Fixed blade; 11. First connecting seat; 12. First fixed pile; 13. First waisted hole; 2. Movable blade; 21. Second connecting seat; 22. Second fixed pile; 23. Second waisted hole; 3. Damping cylinder; 31. Piston shaft; 32. First connecting pile; 312. Deceleration piston; 3121. Through hole; 311. Second connecting pile; 4. Connecting shaft; 41. Nut. DETAILED DESCRIPTION

[0027] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0028] Embodiment 1

[0029] See also Figure 1 As shown, a rotating vane includes a fixed vane 1, a movable vane 2 and a damping cylinder 3, the fixed vane 1 is hinged to the movable vane 2, the two ends of the damping cylinder 3 are hinged to the fixed vane 1 and the movable vane 2 respectively, and the damping cylinder 3 is used to limit the rotation speed of the movable vane 2; illustratively, when in use, the fixed vane 1 is fixed to a fixed body, and the movable vane 2 is used to connect the movable body; taking a car door as an example, the fixed vane 1 is fixed to a vehicle frame, and the movable vane 2 is fixedly connected to the vehicle door, so that the vehicle door can be opened and closed on the vehicle frame through the cooperation of the movable vane 2 and the fixed vane 1, and the rotation speed of the movable vane 2 is limited by the damping cylinder 3, so that the vehicle door can only be opened slowly. If the vehicle door is opened instantly, the damping cylinder 3 will intervene to reduce the speed or limit the movable vane 2; the purpose is to prevent the user from opening the door too quickly, resulting in untimely reaction of people around the door, resulting in safety hazards.

[0030] For details, see Figure 1 and Figure 2As shown, a first connecting seat 11 is fixed to the outer surface of the fixed leaf plate 1, and a second connecting seat 21 matching with the first connecting seat 11 is fixed to the outer surface of the movable leaf plate 2. A connecting shaft 4 is inserted into the first connecting seat 11, and the second connecting seat 21 is rotatably connected to the first connecting seat 11 through the connecting shaft 4. One end of the connecting shaft 4 is T-shaped, and the other end of the connecting shaft 4 is threadedly connected with a nut 41, which is convenient for connecting and assembling the fixed leaf plate 1 and the movable leaf plate 2.

[0031] For more details, see Figure 2 , Figure 3 and Figure 4 As shown, a first fixing pile 12 is provided on the outer surface of the fixed blade 1, a second fixing pile 22 is provided on the outer surface of the movable blade 2, the end of the damping cylinder 3 is telescopically sealed and connected with a piston shaft 31, a deceleration piston 312 is fixed to the end of the piston shaft 31, and through holes 3121 are evenly provided on the outer surface of the deceleration piston 312, a buffer body is filled in the damping cylinder 3, a first connecting pile 32 is fixed to the end of the damping cylinder 3 away from the piston shaft 31, and a second connecting pile 311 is fixed to the end of the piston shaft 31 away from the deceleration piston 312, and the first connecting pile 32 is fixed to the end of the piston shaft 31 away from the deceleration piston 312. The connecting pile 32 and the second connecting pile 311 are hinged to the first fixed pile 12 and the second fixed pile 22 respectively; illustratively, the present embodiment takes the buffer body as a non-Newtonian fluid as an example. The characteristics of the non-Newtonian fluid are that when subjected to an instantaneous squeezing force, it will be like a solid. Therefore, when the movable vane 2 rotates instantaneously, the piston shaft 31 will bring the deceleration piston 312 to instantly squeeze the non-Newtonian fluid, thereby producing a deceleration effect on the deceleration piston 312. If the movable vane 2 rotates slowly and uniformly, the non-Newtonian fluid flows through the through hole 3121, and no deceleration effect will be produced.

[0032] Furthermore, a first elliptical hole 13 is fixed on the outer surface of the fixed vane 1, and a second elliptical hole 23 is fixed on the outer surface of the movable vane 2. The purpose is that when the fixed vane 1 or the movable vane 2 is installed by bolts, the bolts can adjust the installation position in the first elliptical hole 13 and the second elliptical hole 23.

[0033] Embodiment 2

[0034] See also Figure 1 and Figure 4 As shown, based on the above embodiments, this embodiment takes the buffer body as oil as an example. Since the outer surface of the deceleration piston 312 is evenly provided with through holes 3121, if the movable vane 2 rotates instantaneously, the piston shaft 31 will bring the deceleration piston 312 with oil instantly. Since the oil can only flow to the other side of the deceleration piston 312 through the through hole 3121, the deceleration piston 312 can slide in the damping cylinder 3. At an excessively fast speed, the oil will also produce a large resistance to the deceleration piston 312, thereby producing a deceleration effect on the deceleration piston 312.

[0035] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. A rotating blade, characterized in that: include: A fixed blade (1) fixed on the fixed body; The movable blade (2) is rotatably connected to the fixed blade (1) and is used to connect the movable body; The damping cylinder (3) has two ends respectively hinged to the fixed blade (1) and the movable blade (2) and is used to limit the rotation speed of the movable blade (2).

2. A rotating blade according to claim 1, characterized in that: A first connecting seat (11) is fixed on the outer surface of the fixed blade (1), and a second connecting seat (21) matching with the first connecting seat (11) is fixed on the outer surface of the movable blade (2), and the first connecting seat (11) is rotatably connected to the second connecting seat (21).

3. A rotating blade according to claim 2, characterized in that: A connecting shaft (4) is inserted into the first connecting seat (11), and the second connecting seat (21) is rotatably connected to the first connecting seat (11) via the connecting shaft (4); one end of the connecting shaft (4) is T-shaped, and the other end of the connecting shaft (4) is threadedly connected to a nut (41).

4. The rotating blade according to claim 1, characterized in that: The outer surface of the fixed blade (1) is provided with a first fixing pile (12).

5. The rotating blade according to claim 1, characterized in that: A second fixing pile (22) is provided on the outer surface of the movable blade (2).

6. The rotating blade according to claim 1, characterized in that: The end of the damping cylinder (3) is telescopically sealed and connected to a piston shaft (31), a deceleration piston (312) is fixed to the end of the piston shaft (31), and through holes (3121) are evenly formed on the outer surface of the deceleration piston (312), and a buffer body is filled in the damping cylinder (3).

7. The rotating blade according to claim 6, characterized in that: A first connecting pile (32) is fixed to one end of the damping cylinder (3) away from the piston shaft (31), and a second connecting pile (311) is fixed to one end of the piston shaft (31) away from the deceleration piston (312). The first connecting pile (32) and the second connecting pile (311) are respectively hinged to the first fixed pile (12) and the second fixed pile (22).

8. The rotating blade according to claim 7, characterized in that: A first oval hole (13) is fixed on the outer surface of the fixed blade (1), and a second oval hole (23) is fixed on the outer surface of the movable blade (2).

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