CN2503259Y - Shaft structure that can limit the rotation angle - Google Patents

Abstract

The utility model relates to a can restrict turned angle's pivot structure, the pivot is equipped with a pivot in an article, this article is equipped with a backstop on being close to the position of this pivot, and this pivot is close to and is equipped with at least one salient piece on this article inside one end reason, be equipped with a stopper at this end activity, on a circumferential suitable position of this stopper, be equipped with earlier on the overlap joint portion that this pivot extends, on another suitable position thereof, then be equipped with earlier on the portion of supporting and leaning on that the article extends, the pivoted in-process of this pivot on this article, when this salient piece does not meet together with this overlap joint, this pivot will drive this stopper and rotate, until this portion of supporting and pressing on this backstop, just stall, so, the turned angle of this pivot will be restricted, make this pivot can't last the rotation in same direction of rotation.

Description

Shaft structure that can limit the rotation angle

technical field

The utility model relates to a rotating shaft structure that can limit the rotation angle, in particular to a rotating shaft that is provided with a limiting block between the rotating shaft and a pivoted object. When the rotating shaft rotates on the object, the rotating angle of the rotating shaft will be controlled by the rotating shaft. The limit block restricts the structure that the rotating shaft cannot continue to rotate in the same direction of rotation.

Background of the invention

At present, if an object 1 wants to be installed on another object 2 and can rotate on the other object 2, a technical means must be used to achieve the purpose of rotation, and generally a relatively simple method, as shown in Figure 1 Shown, the article 1 is provided with a rotating shaft 10 in the shape of a round rod, and the other article 2 is provided with a pivot portion 20 that can accommodate the rotating shaft, so that the rotating shaft 10 can be positioned on the pivot. The joint part 20 rotates, and then can drive the article 1 to rotate.

If the article 1 is provided with a circuit board, and the other article 2 is provided with another circuit board, on the circuit board, one end of the signal line is fixed on the article 1, and the other end is fixed through the rotating shaft 10. On the other item 2, when the item 1 rotates in the same direction on the other item 2, the signal wire will continue to wind between the item 1 and the other item 2, and the signal wire will continue to wind up between the item 1 and the other item 2. After the number of coils is wound, the signal line will be broken, so that the circuit boards cannot transmit signals to each other, causing a lot of inconvenience and troubles in use.

Contents of the invention

It can be seen from the above analysis that the main purpose of the present invention is to provide a rotating shaft structure that can limit the rotation angle. In view of the disadvantage that the traditional rotating shaft structure rotates in the same direction, and the signal line will break after exceeding the number of times the signal line can be wound, the creator finally developed and designed the utility model after long-term research and experiments. A rotating shaft structure capable of limiting the rotation angle, the rotating shaft is pivotally arranged on an object, a stop block is provided at an appropriate position inside the object, and at least one protruding block is provided on an end edge of the rotating shaft close to the interior of the object A limit block is movably provided at this end, and at an appropriate position on the periphery of the limit block, an overlapping portion extending toward the rotating shaft is provided, and at another appropriate position, an abutting portion extending toward the object is provided. During the rotation of the rotating shaft on the object, the protruding block can be connected with the overlapping portion, so that the rotating shaft drives the limit block to rotate until the abutting portion presses against the stop block Only when the rotation is stopped, the rotation angle of the rotation shaft will be limited, so that the rotation shaft cannot continue to rotate in the same rotation direction.

At least one movable block is provided on the side of the limiting block away from the shaft, and a pressing portion extending toward the stopping block is provided on the periphery of the moving block, and the abutting portion of the limiting block faces the movable block One end of the movable block can just fit on the edge of the movable block. During the rotation of the rotating shaft, when the protruding block is connected with the overlapping part, the rotating shaft will drive the limit block to rotate, so that the limit block The abutting portion of the block presses against the pressing block until the abutting portion is pressed against the top, and then stops rotating. In this way, the rotating shaft can increase the range of rotation with the quantity of the movable blocks.

The object is a casing of an electronic device, and a circuit board is arranged inside; the end of the rotating shaft facing away from the object is fixed on another object, and the other object is a casing of another electronic device, and a circuit board is arranged inside. Another circuit board is provided with a signal line that can pass through the center of the rotating shaft, and is fixed at an appropriate position in the circuit board.

Description of drawings

FIG. 1 is a structural schematic diagram of a known object and a rotating shaft.

Fig. 2 is an exploded view of the article, the rotating shaft, the limit block and another article of the present invention.

Fig. 3 is an assembly diagram of an article, a rotating shaft, a limiting block and another article of the present invention.

Fig. 4 is an assembly diagram of an article, a rotating shaft, a limiting block, another article and a movable block of the present invention. Main component number:

Shaft ..............3 Flange .......................30

Protruding blocks...................32 Objects...................4

Guide block...40 Recessed part...402

Stop block...42 Limit block...5

Lap joint.....................52 Abutment...................54

Socket...................56 Movable block...................6

Resisting part... 62 Another item ................ 7

Another circuit board ..............72 Signal line ...................74

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model is a rotating shaft that can limit the rotation angle. As shown in Fig. 2 and Fig. 3, the rotating shaft 3 is pivotally arranged in an object 4, and a flange portion 30 is provided at an appropriate position on its periphery, and it is close to the object 4. At least one protruding block 32 is provided on one end edge of the interior, and a limit block 5 is movably provided at this end. At an appropriate position on the periphery of the limit block 5, an overlapping joint extending toward the rotating shaft 3 is provided. part 52, at another appropriate position, there is provided an abutting portion 54 extending toward the object, and the object 4 is provided with two guide blocks 40 at a position relative to the rotating shaft 3 at a suitable distance, the two guide blocks 40 are respectively provided with a recessed part 402 matched with the flange part 30, so that the flange part 30 is attached to the recessed part 402 to rotate, and the protruding block 32 and the overlapping part 52 are placed on the two sides. The displacement between the guide blocks 40 is not blocked by the two guide blocks 40 , and the object 4 is provided with a stop block 42 at one end of the two guide blocks 40 close to the interior of the object 4 .

During the rotation of the rotating shaft 3, when the protruding block 32 and the overlapping portion 52 are connected together, the rotating shaft 3 will drive the limiting block 5 to rotate until the abutting portion 54 is pressed against the stop On block 42, just stop to rotate, like this, the rotation angle of this rotating shaft 3 will be limited, make this rotating shaft 3 cannot continue to rotate in the same direction of rotation.

Because, the rotation angle θ1 of the rotating shaft 3 to the limit block 5 is shown in the following formula 1:

θ ₁ ＝360°-θ ₂ -θ ₃ ..........(1)

Wherein θ ₂ refers to the angle occupied by the protruding block 32 on the rotating shaft 3, and θ ₃ refers to the angle occupied by the overlapping portion 52 on the limit block 5, and the limit block 5 corresponds to the stop block The rotation angle θ ₄ of 42 is shown in the following formula (2):

θ ₄ ＝360°-θ ₅ -θ ₆ .........(2)

Wherein θ ₅ refers to the angle occupied by the abutment portion 54 at the limit block 5, θ ₆ refers to the angle at which the stop block 42 takes up the rotation of the limit block 5, and the maximum rotation angle θ of the rotating shaft 3 is as follows (3 ) as shown:

θ = θ ₁ + θ ₄

＝(360°-θ ₂ -θ ₃ )+(360°-θ ₅ -θ ₆ )

＝720°-θ ₂ -θ ₃ -θ ₅ -θ ₆ ...................(3)

It can be seen from formula (3) that the rotating shaft 3 will be restricted by the protruding portion 32, the movable block 5 and the stop block 42, and only rotate within a fixed angle (less than 720°).

In the embodiment of the present utility model, as shown in FIG. 4 , at least one movable block 6 is provided between the two guide blocks 40 on the side of the limit block 42 facing away from the shaft rod 3 . 6 is provided with a pressing portion 62 extending toward the stop block 42 on the periphery of the stop block 42, and the abutment portion 54 of the limit block 5 faces one end of the movable block 6, and can just fit on the edge of the movable block 6. During the rotation of the rotating shaft 3, when the protruding block 32 and the overlapping portion 52 are connected together, the rotating shaft 3 will drive the limiting block 5 to rotate, so that the abutting portion 54 of the limiting block 5 will press against At the pressing portion 62 , the rotation stops until the pressing portion 62 is pressed against the stop block.

Because at least one movable block 6 is arranged between the rotating shaft 3 and the stop block 42, the maximum rotation angle θ' of the rotating shaft 3 is as shown in the following formula (4):

θ'=θ+n(360°-θ ₇ )..........(4)

Where _θ7 refers to the angle occupied by the pressing portion 62 on the movable block 6, and n refers to the number of the movable block 6, so that the rotating shaft 3 can increase the range of rotation with the number of the movable block 6.

In one embodiment of the present utility model, the rotating shaft 3, the limiting block 5 and the movable block 6 are hollow, wherein the inner edge of the limiting block 5 extends toward the inner edge of the rotating shaft 3 and is provided with a socket portion 56, the socket portion 56 can just extend into and be attached to the inner edge of the rotating shaft 3, so that the limiting block 5 is connected to the rotating shaft 3 without moving arbitrarily in the object 4, and the inner edge of the movable block 6 moves toward the limiting The inner edge of the block 5 is extended with another socket portion (not shown in the figure), which can just extend into the inner edge of the socket portion 56 and fit on the inner edge of the socket portion 56, The limiting block 5 is connected to the movable block 6 without moving arbitrarily in the object 4, so that the rotating shaft 3, the limiting block 5 and the movable block 6 all rotate at the same axis position;

In this embodiment, as shown in Figure 2, the object 3 is a housing of an electronic device, in which a circuit board is arranged; the end of the rotating shaft 3 facing away from the object 4 is fixed on another object 7, This other object 7 is the housing of another electronic device, and another circuit board 72 is arranged in it, and a signal line 74 that can pass through the center of the rotating shaft 3 is provided on the other circuit board 72, and is fixed on the An appropriate position of the circuit board, so that the circuit board can transmit signals to each other through the signal line 74; during the rotation of the rotating shaft 3, the rotation angle of the rotating shaft 3 is limited, so that the signal line 74 will not be caused by the signal line 74. Rotating shaft 3 always rotates in the same direction and breaks.

Claims (6)

1. A rotating shaft structure capable of limiting the angle of rotation, characterized in that it comprises: A rotating shaft, the rotating shaft is pivotally arranged in an object, and at least one protruding block is provided on an end edge close to the interior of the object; A limit block, the limit block is movably arranged on the end of the rotating shaft close to the interior of the object, an appropriate position on the periphery of the limit block is provided with an overlapping portion extending toward the rotating shaft, and the other appropriate position On the top, there is provided an abutting portion extending toward the object; A stop block, the stop block is arranged in the object close to the abutting portion, during the rotation of the rotating shaft on the object, the protruding block can be connected with the overlapping portion, the The rotating shaft will drive the limit block to rotate until the abutting portion presses against the stop block. 2. The rotating shaft structure capable of limiting the rotation angle according to claim 1, characterized in that, the rotating shaft, the limiting block and the movable block are hollow, wherein the inner edge of the limiting block extends toward the inner edge of the rotating shaft with a set of The socket part can just extend into the inner edge of the rotating shaft, and can fit on the inner edge of the rotating shaft, and the limiting block is connected with the rotating shaft. 3. The rotating shaft structure capable of limiting the rotation angle according to claim 1, characterized in that, on the side of the limiting block facing away from the shaft rod, at least one movable block is provided, and the periphery of the movable block is provided with An abutting part extending from the stop block, the abutting part of the limit block faces one end of the movable block, and can fit on the edge of the movable block. During the rotation of the rotating shaft, the protruding block and the overlapping The connecting parts are connected together, the rotating shaft will drive the limit block to rotate, the abutting part of the limit block presses against the pressing part, and the pressing part presses against the stop block to stop rotating. 4. The rotating shaft structure capable of limiting the rotation angle according to claim 3, characterized in that, another socket part is provided extending from the inner edge of the movable block to the inner edge of the limit block, and the other socket part is just It can extend into the inner edge of the socket part, and can fit on the inner edge of the socket part, and the limiting block is in contact with the movable block. 5. The rotating shaft structure capable of limiting the rotation angle as claimed in claim 1, 2 or 3, wherein a flange portion is provided at a proper position on the periphery of the rotating shaft, and the object is at a position relative to the rotating shaft, There are two guide blocks spaced apart at an appropriate distance, and the two guide blocks are respectively provided with a concave part matched with the flange part, and the flange part leans against the rotation of the concave part, and the protruding block and The overlapping portion is displaced between the two guide blocks without being blocked by the two guide blocks. 6. The rotating shaft structure capable of limiting the rotation angle as claimed in claim 1, wherein the object is a casing of an electronic device in which a circuit board is arranged; the end of the rotating shaft facing away from the object is fixed on another On one object, the other object is the casing of another electronic device, and another circuit board is arranged in it, and a signal line that can pass through the center of the rotating shaft is arranged on the other circuit board, and is fixed on the circuit board at an appropriate location within.

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