An offset rotary mechanism

Abstract

The utility model discloses a kind of offset rotary mechanisms, it is related to the technical field of automobile parts, specifically a kind of offset rotary mechanism, including bottom plate, sliding slot plate, pivot assembly, upper rotary disc and lock catch, sliding slot plate is fixedly installed in the middle position above bottom plate, pivot assembly is installed in the groove in the middle of sliding slot plate, upper rotary disc is fixedly installed above pivot assembly, lock catch is hinged in the side below sliding slot plate, reset spring with another end connected with bottom plate is installed in the side of hinged point where lock catch is located, handle is hinged in the other side of hinged point where lock catch is located. By the cooperation of sliding slot plate, pivot assembly and upper rotary disc, the offset rotary mechanism has the effect of simple structure and simultaneous offset and rotation, by the cooperation of sliding slot plate, pivot assembly, upper rotary disc and lock catch, the offset rotary mechanism has the effect of not easy to shake and low cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an offset rotation mechanism. Background Technology

[0002] With the rapid development of the automotive industry, consumers have put forward higher requirements for the comfort, convenience and space utilization of cars. Among them, front seats with rotating function can effectively improve convenience. For example, during travel and camping, many car owners need to rotate the front seats to form a meeting mode with the rear seats. However, because there is a center console armrest in the middle of the front seats and a B-pillar on the side, the front seats generally cannot be rotated directly in place. If they are to rotate in place, there must be gaps around the front seats. Existing rotating devices mostly rely on bearings for positioning. If the bearing size is small, it is easy to wobble. If the bearing size is large enough, it is not only expensive to manufacture, but also occupies height space. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an offset rotation mechanism that solves the problems mentioned in the background section.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an offset rotation mechanism, comprising a base plate, a slide plate, a rotating shaft assembly, an upper rotating disk, and a latch. The slide plate is fixedly installed in the middle position above the base plate, the rotating shaft assembly is installed in the groove in the middle of the slide plate, the upper rotating disk is fixedly installed above the rotating shaft assembly, and the latch is hinged to one side below the slide plate. A return spring with its other end connected to the base plate is installed on one side of the latch at the hinge point, and a handle is hinged to the other side of the latch at the hinge point.

[0005] Preferably, a front support plate and a rear support plate are fixedly installed on the upper surface of the base plate by welding. The front support plate and the rear support plate have the same height and are greater than the thickness of the rotating shaft assembly. The slide plate is fixedly connected to the front support plate and the rear support plate by welding.

[0006] Preferably, the slide plate has a long waist groove in the middle, and the axis of the long waist groove is set at an angle with the vertical center line of the bottom plate, and the rotating shaft assembly is clearance-fitted with the long waist groove.

[0007] Preferably, the rotating shaft assembly includes a lower rotating disk, an upper rotating disk, a gasket, and bolts. The outer diameter of the lower rotating disk is larger than that of the upper rotating disk, and slots are evenly provided around its perimeter. The thickness of the upper rotating disk is the same as that of the slide plate.

[0008] Preferably, a limit block is provided on the lower surface behind the slide plate, and a lock head is provided on the side of the latch near the rotating shaft assembly. The limit block is embedded in the slot behind the lower turntable, and the lock head is embedded in the slot on the side of the lower turntable.

[0009] Preferably, one end of the handle is hinged to the latch, and the other end is L-shaped and located below the front of the base plate.

[0010] This utility model provides an offset rotation mechanism, which has the following beneficial effects: 1. The offset rotation mechanism, through the cooperation of the slide plate, the rotating shaft assembly and the upper rotating disk, has a simple structure and can achieve the effect of offset and rotation at the same time. The rotating shaft assembly is directly inserted into the long waist groove opened in the middle of the slide plate, so that horizontal movement and rotation can be achieved at the same time. The height restriction and assembly are completed by the slide plate and the upper rotating disk clamping the rotating shaft assembly.

[0011] 2. This offset rotation mechanism, through the coordinated arrangement of the slide plate, rotating shaft assembly, upper rotating disk, and latch, achieves a low-cost and stable performance. The limiting block below the slide plate and the lock head on one side of the latch simultaneously embed into two different slots around the rotating shaft assembly, achieving a stable performance through double locking. Since the lower bottom surface of the upper rotating disk is in direct contact with the slide plate, it is not supported by a shaft and has a large contact area, thus preventing wobbling. Because there is no need to purchase bearings and matching high-precision structures, the manufacturing cost is low. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the overall three-dimensional view of this utility model; Figure 2 This is a structural schematic diagram of the main view of this utility model; Figure 3 This is a structural schematic diagram of the overall cross-sectional view of this utility model; Figure 4 This is a structural schematic diagram of the first partial three-dimensional view of the present invention; Figure 5 This is a structural schematic diagram of the second partial perspective view of the present invention; Figure 6 This is a structural schematic diagram of the third partial perspective view of this utility model.

[0013] In the diagram: 1. Base plate; 101. Front support plate; 102. Rear support plate; 2. Slide plate; 201. Long groove; 202. Limiting block; 3. Rotary shaft assembly; 301. Lower turntable; 302. Upper turntable; 303. Shim; 304. Bolt; 305. Slot; 4. Upper rotating disc; 5. Lock; 501. Lock head; 6. Return spring; 7. Handle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example Please see Figures 1 to 6 The present invention provides a technical solution: an offset rotation mechanism, comprising a base plate 1, a slide plate 2, a rotating shaft assembly 3, an upper rotating disk 4, and a latch 5. The slide plate 2 is fixedly installed in the middle position above the base plate 1. The rotating shaft assembly 3 is installed in the groove opened in the middle of the slide plate 2. The upper rotating disk 4 is fixedly installed above the rotating shaft assembly 3. The latch 5 is hinged to one side below the slide plate 2. A return spring 6 with the other end connected to the base plate 1 is installed on one side of the latch 5 at the hinge point. A handle 7 is hinged to the other side of the latch 5 at the hinge point.

[0016] Specifically, the base plate 1 is fixedly connected to the vehicle, and the seat is fixedly installed above the upper rotating plate 4.

[0017] The upper surface of the base plate 1 is fixedly installed with a front support plate 101 and a rear support plate 102 by welding. The front support plate 101 and the rear support plate 102 have the same height and are greater than the thickness of the rotating shaft assembly 3. The slide plate 2 is fixedly connected to the front support plate 101 and the rear support plate 102 by welding.

[0018] Specifically, the front support plate 101 and the rear support plate 102 lift the slide plate 2 from below, making the slide plate 2 parallel to the bottom plate 1, and forming a cavity between the slide plate 2 and the bottom plate 1, in which the rotating shaft assembly 3 moves.

[0019] The slide plate 2 has a long waist groove 201 in the middle. The axis of the long waist groove 201 is set at an angle with the vertical center line of the base plate 1. The rotating shaft assembly 3 is clearance-fitted with the long waist groove 201.

[0020] Specifically, the angle between the axis of the long waist groove 201 and the vertical center line of the base plate 1 can be selected as 30-45°, and the rear center point of the long waist groove 201 is located on the vertical center line of the base plate 1.

[0021] The rotating shaft assembly 3 includes a lower turntable 301, an upper turntable 302, a washer 303, and a bolt 304. The outer diameter of the lower turntable 301 is larger than that of the upper turntable 302, and slots 305 are evenly distributed around its perimeter. The thickness of the upper turntable 302 is the same as that of the slide plate 2. Specifically, the upper turntable 302 is inserted into the long waist groove 201 from below. The function of the gasket 303 is to prevent the rotating shaft assembly 3 and the upper rotating disk 4 from clamping the slide plate 2. The rotating shaft assembly 3 can rotate and slide within the long waist groove 201.

[0022] A limit block 202 is provided on the lower surface behind the slide plate 2, and a lock head 501 is provided on the side of the latch 5 near the rotating shaft assembly 3. The limit block 202 is embedded in the slot 305 behind the lower turntable 301, and the lock head 501 is embedded in the slot 305 on the side of the lower turntable 301.

[0023] Specifically, when the rotating shaft assembly 3 moves to the center point behind the long waist groove 201 and the angle is appropriate, the limiting block 202 and the locking head 501 can be simultaneously inserted into the slot 305. At this time, the rotating shaft assembly 3 cannot rotate or slide. When only the locking head 501 is disengaged from the slot 305, the rotating shaft assembly 3 cannot rotate but can slide. When both the limiting block 202 and the locking head 501 are disengaged from the slot 305, the rotating shaft assembly 3 can both rotate and slide.

[0024] One end of the handle 7 is hinged to the latch 5, and the other end is L-shaped and located below the front of the base plate 1.

[0025] Specifically, when the handle 7 is pulled outward, the latch 5 rotates counterclockwise, which can disengage the lock head 501 from the slot 305; when the handle 7 is not disturbed by external force, the latch 5 automatically rotates clockwise under the elastic force of the return spring 6, and at this time, as long as the lock head 501 is aligned with the slot 305, it can be automatically inserted.

[0026] In use, first, the offset rotation mechanism is fixedly installed to the vehicle via the base plate 1. Then, the seat is fixedly installed above the upper rotating plate 4. At this time, all the weight of the seat is pressed onto the sliding plate 2 via the upper rotating plate 4. Due to the large contact area between the two surfaces, it is not easy to wobble. When the seat needs to be rotated, first pull the handle 7 forward. During this process, the handle 7 pulls the latch 5 to rotate counterclockwise, and at the same time, the lock head 501 disengages from the slot 305. Further pull the seat forward, and at this time, the rotating shaft assembly 3 moves forward synchronously, causing the limit block 202 to also disengage from the slot 305. The seat can then be rotated backward. After rotating to a suitable angle, push the seat backward. After the position of the limiting block 202 and the slot 305 are aligned, the seat can be pushed all the way back. At the same time, the latch 5 automatically resets under the action of the return spring 6, that is, the lock head 501 automatically inserts into the slot 305. At this time, the rotating shaft assembly 3 is positioned by the lock head 501 and the limiting block 202, so the angle is not easy to deviate. If the seat is not rotated to a suitable angle and cannot be pushed back, the seat can be rotated in both directions at a small angle. The angle at which the seat can be fixed is determined by the distribution of the slots 305. If the slots 305 are four evenly distributed, they can be fixed by rotating 90°. By observing whether the handle 7 is pulled back, it can be determined whether the lock head 501 has been inserted into the slot 305.

[0027] In summary, this offset rotation mechanism allows the rotating shaft assembly 3 to be directly inserted into the elongated groove 201 in the middle of the slide plate 2, thus simultaneously achieving horizontal movement and rotation. The height limitation and assembly are completed by the slide plate 2 and the upper rotating disk 4 clamping the rotating shaft assembly 3. The limiting block 202 below the slide plate 2 and the lock head 501 on one side of the lock 5 are simultaneously embedded into two different slots 305 around the rotating shaft assembly 3, and the double locking can prevent shaking. Since the bottom surface of the upper rotating disk 4 is in direct contact with the slide plate 2, it is not supported by a shaft and has a large contact area, thus preventing shaking. Since there is no need to purchase bearings and matching high-precision structures, the manufacturing cost is low.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An offset rotation mechanism, comprising a base plate (1), a sliding plate (2), a rotating shaft assembly (3), an upper rotating disk (4), and a latch (5), characterized in that: The slide plate (2) is fixedly installed in the middle position above the base plate (1), the rotating shaft assembly (3) is installed in the groove opened in the middle of the slide plate (2), the upper rotating disk (4) is fixedly installed above the rotating shaft assembly (3), the latch (5) is hinged to one side below the slide plate (2), the latch (5) is equipped with a return spring (6) connected to the base plate (1) on the other side of the hinge point, and the latch (5) is hinged with a handle (7) on the other side of the hinge point.

2. The offset rotation mechanism according to claim 1, characterized in that: The upper surface of the base plate (1) is fixedly installed with a front support plate (101) and a rear support plate (102) by welding. The front support plate (101) and the rear support plate (102) have the same height and are greater than the thickness of the shaft assembly (3). The slide plate (2) is fixedly connected to the front support plate (101) and the rear support plate (102) by welding.

3. The offset rotation mechanism according to claim 1, characterized in that: The slide plate (2) has a long waist groove (201) in the middle. The axis of the long waist groove (201) is set at an angle with the vertical center line of the base plate (1). The rotating shaft assembly (3) is fitted with the long waist groove (201) with clearance.

4. The offset rotation mechanism according to claim 3, characterized in that: The rotating shaft assembly (3) includes a lower turntable (301), an upper turntable (302), a gasket (303), and a bolt (304). The outer diameter of the lower turntable (301) is larger than that of the upper turntable (302), and slots (305) are evenly provided around its perimeter. The thickness of the upper turntable (302) is the same as that of the slide plate (2).

5. The offset rotation mechanism according to claim 4, characterized in that: A limit block (202) is provided on the lower surface behind the slide plate (2), and a lock head (501) is provided on the side of the latch (5) near the rotating shaft assembly (3). The limit block (202) is embedded in the slot (305) behind the lower turntable (301), and the lock head (501) is embedded in the slot (305) on the side of the lower turntable (301).

6. The offset rotation mechanism according to claim 5, characterized in that: One end of the handle (7) is hinged to the latch (5), and the other end is L-shaped and located below the front of the base plate (1).

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