CN202065333U - Pivot Angle Limiting Device - Google Patents

Abstract

The utility model discloses a pivot corner limiting device, which is mainly characterized in that a shaft sleeve part with a shaft hole is arranged on a support, and a hollow opening communicated with the shaft hole is arranged on the shaft sleeve part, so that the shaft hole has elasticity; the support is provided with a first connecting part at the outer side of the shaft hole, one end of the pivot extends into the shaft hole, one end of the pivot is provided with a second connecting part, and the second connecting part is positioned outside the shaft hole when the pivot extends into the shaft hole; two ends of a linkage piece are respectively provided with a pin joint part and a guide sliding part, and the pin joint part and the guide sliding part are respectively combined with the first connecting part and the second connecting part so that the pivot can slide along the guide sliding part or link the linkage piece; the length of the slide guide part is shorter than the diameter of the pivot shaft, and the pivot shaft is limited to pivot back and forth within a fixed angle by the stop at the two ends of the slide guide part. Pivot device, by simple structure and convenient equipment mode, reach restriction pivot turned angle's function, effectively ensure the firm after the combination, difficult production is rocked or is not hard up during the operation.

Description

Pivot Angle Limiting Device

technical field

The utility model relates to a pivot device, in particular to a pivot angle limiting device which is simple in structure, stable in combination and not easy to shake, and can limit the pivot angle.

Background technique

A common pivot structure with a pivot angle limiting function, as shown in Figure 1 and Figure 2, mainly includes: a support 4 and a pivot 5, and the support 4 can be combined with an electronic device (such as: a notebook On the body of the computer); a support portion 41 is bent at one end of the support 4, and a circular shaft hole 42 is provided on the support portion 41, and at least one protrusion 43 is provided on the side of the shaft hole 42, and the periphery of the pivot shaft 5 It has at least one flattened surface, one end is provided with an external thread 53, and the other end is connected to a joint part 52 via a stopper part 51, and the joint part 52 is combined on a component (such as a screen) to be pivoted in the electronic device; the pivot shaft 5 penetrates After the shaft hole 42, combine and synchronously move a limiter 54, then fit an elastic component 55 (spring), combine with a non-slip washer 56 that is synchronously pivoted with the pivot 5 and has a relatively large friction characteristic , with a nut 57 screwed on the external thread 53, so that the pivot 5 forms a tight combination with the support 4 due to the elastic resistance of the elastic component 55. The local concave notch 541, the concave notch 541 corresponds to accommodate the convex part 43; during operation, since the limiter 54 will pivot synchronously with the pivot 5, the convex part 43 will be opposite to the two ends of the concave notch 541 respectively. A stop is formed to limit the rotation angle of the pivot shaft 5 .

Since the contact between the pivot 5 and the support 4 in the above structure is limited to the inside of the shaft hole 42, as well as the stopper 51 and the side of the support 41, etc., such an unstable combination structure lacking large-area conflict needs to rely on the elastic component 55 Use strong elasticity to push against the limiter 54 and cooperate with the stopper 51 to clamp the support part 41 to reduce the shaking or loosening of the pivot 5 when pivoting. 55 is proportional to the elasticity of the action; however, excessive elastic compression will not only increase the applied force during operation and affect the convenience of use; it will also cause serious wear and tear on each component (especially the stopper 54), resulting in loose In this situation, in addition to the need to frequently tighten the nut 57 to ensure fastening, it is more likely to cause damage and failure of each component; too many components and complicated structures make the overall structure more complicated and difficult to assemble, resulting in production Increased costs are detrimental to competition.

Utility model content

The technical problem solved by the utility model is to provide a pivot angle limiting device with fewer components, simple structure, easy assembly and low production cost.

The first technical solution of the utility model includes: a support, a shaft hole is provided on the support, and a first connecting part is provided outside the shaft hole; a pivot extends into the shaft hole of the support, and the pivot The end of the shaft is provided with a second connecting part, and when the pivot is inserted into the shaft hole, the second connecting part protrudes out of the shaft hole; a linking part is provided with a pivot joint and a guide sliding part at both ends, and the pivot joint Combined with the first connecting part of the support, the sliding guide part is combined with the second connecting part of the pivot. The length of the sliding guide part is shorter than the diameter of the pivot shaft. The part slides, and the two ends of the sliding part block the second connecting part, so that the pivot can be limited to reciprocating pivoting within a fixed angle.

In the above-mentioned pivot angle limiting device, wherein: the length of the linkage member enables one end of the sliding part to move within a semicircle range on the side of the edge of the shaft hole close to the connecting part.

In the above-mentioned pivot angle limiting device, wherein: the length of the linkage member enables one end of the sliding part to move within a semicircle range on the side of the edge of the shaft hole away from the connecting part.

The second technical solution of the utility model includes: a support, a shaft hole is provided on the support, and a first connecting part is provided outside the shaft hole; a pivot extends into the shaft hole of the support, the One end of the pivot is provided with a second connecting portion, and when the pivot is inserted into the shaft hole, the second connecting portion protrudes out of the shaft hole; The connecting part is combined with the second connecting part of the pivot, and the sliding guide part is combined with the first connecting part of the support. The length of the guiding and sliding part is shorter than the diameter of the pivot, and the second connecting part rotates with the pivot. Drive the linkage to pivot, so that the first connecting part slides along the sliding guide part, and the reciprocating pivoting of the pivot shaft within a fixed angle is restricted by the two ends of the guiding sliding part blocking the first connecting part.

In the above-mentioned pivot angle limiting device, wherein: the length of the linkage member enables one end of the pivot joint to move within a semicircle range on the edge of the shaft hole close to the side of the joint joint.

In the above-mentioned pivot angle limiting device, wherein: the length of the linkage member enables one end of the pivot joint to move within a semicircle range on the edge of the shaft hole away from the side of the joint joint.

The pivot angle limiting device, wherein: the support has a shaft sleeve part, a shaft hole is arranged on the shaft sleeve part, an opening extending along the axis direction and communicating with the shaft hole is provided on the shaft sleeve part, the shaft The sleeve portion has the elasticity of the jacket pivot.

Said pivot angle restricting device, wherein: the pivot joint is a pivot hole, and the first connection part and the second connection part are protrusions fitted into the pivot hole.

Said pivot angle restricting device, wherein: the sliding guide part is a long slotted hole, and the first connecting part and the second connecting part are protrusions that can extend into the long slotted hole.

Said pivot angle restricting device, wherein: the pivot joint is a pivot hole, and the first connection part and the second connection part are protrusions capable of fitting into the pivot hole.

Said pivot angle restricting device, wherein: the sliding guide part is a long slotted hole, and the first connecting part and the second connecting part are protrusions that can extend into the long slotted hole.

The pivot angle limiting device provided by the utility model achieves the function of limiting the pivot angle by means of a simple structure and a convenient assembly method, effectively ensures the stability after assembly, is not easy to shake or loose during operation, and effectively reduces production costs. manufacturing cost.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Fig. 1 is an exploded view of an existing pivot structure with a pivot angle limiting function.

FIG. 2 is a combined schematic diagram of the pivot structure shown in FIG. 1 .

Fig. 3 is an exploded view of the structure of the first embodiment of the utility model.

Fig. 4 is an overall combined appearance view of the first embodiment of the utility model.

5A to 5C are schematic diagrams of the action of the first embodiment of the present invention.

Fig. 6 is an exploded view of the structure of the second embodiment of the present invention.

Fig. 7 is an overall combined appearance view of the second embodiment of the present invention.

8A to 8C are schematic diagrams of the action of the second embodiment of the present invention.

Fig. 9 is an exploded view of the structure of the third embodiment of the present invention.

Fig. 10 is an overall combined appearance view of the third embodiment of the present invention.

11A to 11C are schematic diagrams of the action of the third embodiment of the present invention.

Fig. 12 is an exploded view of the fourth embodiment of the utility model.

Fig. 13 is an overall combined appearance view of the fourth embodiment of the present utility model.

14A to 14C are action diagrams of the fourth embodiment of the present invention.

reference sign

1. 4 supports 11 hubs

12, 42 shaft hole 121 opening

13 first connecting part 2, 20, 5 pivots

21, 201 joint part 22, 202 second joint part

3, 30, 6, 60 linkages

31, 301, 61, 601 pivot joints

32, 302, 62, 602 slide guide

41 Support part 43 Convex part

51 Stopper 52 Joint

53 external thread 54 limit piece

541 concave notch 55 elastic component

56 Non-slip washer 57 Nut

Detailed ways

As shown in Fig. 3 and Fig. 4, the structure of the first embodiment of the present utility model mainly includes parts such as a support 1, a pivot 2 and a linkage 3, wherein the support 1 can be fixed to an electronic device (such as: Notebook computer) on the body, the support 1 is provided with a shaft sleeve portion 11, the shaft sleeve portion 11 is provided with a shaft hole 12, and the shaft hole 12 is provided with an opening 121 extending in the axial direction and communicating with the outside, so that the shaft sleeve Part 11 has the effect of forming an elastic jacket around the shaft hole 12; the outer side of the shaft sleeve part 11 is provided with a first connecting part 13 (which can be a convex part or a post), and one end of the pivot shaft 2 is provided with an electronic The joint part 21 of the accessory structure (such as: screen) combination of the device, the other end of the pivot 2 stretches in the shaft hole 12, and the end of the pivot shaft 12 stretching into the shaft hole 12 is provided with a second connecting part 22 (can It is a convex portion or a convex post) extending out of the shaft hole 12, and the two ends of the linkage 3 are respectively provided with a pivot portion 31 (which can be a pivot hole) and a sliding portion 32 (which can be a long groove) hole), the pivot joint 31 (pivot hole) is pivotally sleeved on the first connecting portion 13 (protruding post) of the support 1, and the sliding guide portion 32 (long slot hole) fits the second connecting portion 22 of the pivot 2 (Protruding post); the length of the guide slide part 32 is shorter than the diameter of the pivot 2, and the length of the link 3 makes the end with the guide slide part 32 move within the semicircle range of the shaft hole 12 edge near the connecting part 13 side.

As shown in Figures 5A to 5C, when the structure of the first embodiment of the present invention is in operation, the second connecting part 22 (protruding post) can slide along the guide and slide part 32 (long slot hole) with the rotation of the pivot 2 Due to the position limitation of the sliding part 32, the second connecting part 22 only pivots within the semicircle range close to the side of the connecting part 13; The design of the guide slide part 32 (long slot hole) absorbs the position change of the second connecting part 22 (protruding post) with the rotation of the pivot 2 (as shown in Figure 6), and the guide slide part 32 (long slotted hole) The stop (as shown in FIG. 7 ) at the end of the slotted hole) to the second connecting portion 22 (protruding post) restricts the pivot 2 to pivot reciprocally within a fixed angle.

As shown in Fig. 6 and Fig. 7, the structure of the second embodiment of the utility model mainly includes: a linkage 30, a support 1, a pivot 2 and other components, the combination of the support 1 and the pivot 2 is the first embodiment The example is the same; wherein the two opposite ends of the linking member 30 are respectively provided with a pivot joint 301 and a guide slide 302, the pivot joint 301 is pivotally sleeved on the second connecting portion 22 of the pivot shaft 2, and the guide slide 302 is sleeved and supported. In the first connecting part 13 of the seat 1, the length of the sliding part 302 is shorter than the diameter of the pivot 2, and the length of the linkage 30 is such that the end with the pivot part 301 is close to the semicircle on the side of the connecting part 13 at the edge of the shaft hole 12 activities within the range.

As shown in Figures 8A to 8C, when the structure of the second embodiment of the present invention is in operation, the second connecting part 22 rotates with the pivot 2, and drives the linkage 30 to pivot through the sliding guide part 302, so that the first connecting part 13 produces relative sliding in the slide guide part 302. Due to the position limitation of the slide guide part 302, the second connecting part 22 only pivots within the semicircle range close to the side of the connect part 13. By the end of the slide guide part 302 The blocking of the first connecting portion 13 by the portion restricts the reciprocating pivoting of the pivot shaft 2 within a fixed angle.

As shown in Figure 9 and Figure 10, the structure of the third embodiment of the utility model mainly includes: a pivot 20, a link 6, a support 1 and other components, wherein the pivot 20 has a joint 201 and a first Two connecting parts 202 (with different positions from the second connecting part 22), and the two ends of the linkage member 6 are respectively provided with a pivoting part 61 (which can be a pivot hole) and a sliding part 62 (which can be a long groove) hole), the pivot joint 61 (pivot hole) is pivotally sleeved on the first connecting portion 13 of the support 1, the sliding guide portion 62 (long slot hole) fits the second connecting portion 202 of the pivot 20, and the sliding guide portion The length of 62 is shorter than the diameter of the pivot 20 , and the length of the linkage 6 enables the end with the sliding portion 62 to move within a semicircle on the side of the shaft hole 12 away from the connecting portion 13 .

As shown in Figures 11A to 11C, when the structure of the third embodiment of the present invention is in operation, the second connecting part 202 (protruding post) slides along the sliding guide part 62 with the rotation of the pivot shaft 20, because the sliding guide part 62 The position is limited so that the second connecting part 202 pivots only within a semicircle range away from the connecting part 13, and the design of the linkage 6 with the first connecting part 13 as the axis makes the guide slide part 62 absorb the second The amount of position change produced by the connecting part 202 as the pivot 20 rotates is restricted by the end of the guide slide part 62 to the second connecting part 202 (protruding post), so that the pivot 20 is limited to a reciprocating pivot within a fixed angle. change.

As shown in Figure 12 and Figure 13, the structure of the fourth embodiment of the utility model mainly includes: a pivot 20, a link 60, a support 1 and other components, wherein the pivot 20 has a joint 201 and a first Two connecting parts 202 (with different positions from the second connecting part 22), the two ends of the linkage 60 are respectively provided with a pivoting part 601 (which can be a pivot hole) and a sliding part 602 (which can be a long groove) hole), the pivot joint part 601 is pivoted on the second connecting part 202 of the pivot shaft 20, the sliding guide part 602 is sleeved on the first connecting part 13 of the support 1, and the length of the sliding guide part 602 is shorter than that of the pivot shaft 20 Diameter, the length of the linking member 60 is such that one end with the pivoting portion 601 moves within a semicircle on the edge of the shaft hole 12 away from the side of the connecting portion 13 .

As shown in Figures 14A to 14C, when the structure of the fourth embodiment of the present invention is in operation, the second connecting part 202 rotates with the pivot 20, and drives the linkage 60 to pivot through the sliding guide part 602, so that the first connecting part 13 generates relative sliding in the sliding guide part 602. Due to the position limitation of the sliding guide part 602, the second connecting part 202 only pivots within a semicircle range away from the side of the connecting part 13, and the end of the sliding guide part 602 The blocking of the first connecting portion 13 by the portion can restrict the reciprocating pivoting of the pivot shaft 2 within a fixed angle.

The utility model has been described in detail through specific implementation methods and examples above, but these do not constitute a limitation to the utility model. Without departing from the principle of the utility model, those skilled in the art can also make many modifications and improvements, which should also be regarded as the protection scope of the utility model.

Claims (11)

1. a pivot corner restricting means is characterized in that, comprising:

One bearing, bearing are provided with an axis hole, and the outer side of axis hole is provided with one first joint;

One pivot stretches in the axis hole of described bearing, and second joint stretched out outside the axis hole when this pivot one end was provided with one second joint pivot insertion axis hole;

One coupling component, two ends are respectively equipped with a pin-joint part and a guide sliding part, the pin-joint part is incorporated on first joint of described bearing, guide sliding part combines with second joint of pivot, the diameter that is shorter in length than pivot of guide sliding part utilizes second joint with pivoted, along the guide sliding part slippage, by the block of guide sliding part two ends to second joint, the restriction pivot back and forth pivots in a tilt fixing.

2. pivot corner restricting means as claimed in claim 1 is characterized in that: the end that the length of described coupling component makes guide sliding part is movable near the semicircle scope of joint one side at the axis hole edge.

3. pivot corner restricting means as claimed in claim 1 is characterized in that: the end that the length of described coupling component makes guide sliding part is movable in away from the semicircle scope of joint one side at the axis hole edge.

4. a pivot corner restricting means is characterized in that, comprising:

One bearing, bearing are provided with an axis hole, and the outer side of axis hole is provided with one first joint;

One pivot stretches in the axis hole of described bearing, and second joint stretched out outside the axis hole when this pivot one end was provided with one second joint pivot insertion axis hole;

One coupling component, two ends are respectively equipped with a pin-joint part and a guide sliding part, the pin-joint part is incorporated into second joint of described pivot, guide sliding part combines with first joint of bearing, and the diameter that is shorter in length than pivot of guide sliding part utilizes the rotation of second joint with pivot, the drive coupling component pivots, make first joint along the guide sliding part slippage, by the block of guide sliding part end to first joint, the restriction pivot back and forth pivots in a tilt fixing.

5. pivot corner restricting means as claimed in claim 4 is characterized in that: the end that the length of described coupling component makes the pin-joint part is movable near the semicircle scope of joint one side at the axis hole edge.

6. pivot corner restricting means as claimed in claim 4 is characterized in that: the end that the length of coupling component makes the pin-joint part is movable in away from the semicircle scope of joint one side at the axis hole edge.

7. as any one described pivot corner restricting means of claim 1 to 6, it is characterized in that: described bearing has a shaft sleeve part, one axis hole is arranged at shaft sleeve part, and shaft sleeve part is provided with an opening that axially extends and be communicated with axis hole, and described shaft sleeve part has the elasticity of chuck pivot.

8. pivot corner restricting means as claimed in claim 7 is characterized in that: the pin-joint part is a pivot hole, and first joint, second joint are the projection with the pivot hole fit.

9. pivot corner restricting means as claimed in claim 7 is characterized in that: guide sliding part is a slotted hole, and first joint, second joint are for stretching into the projection in the slotted hole.

10. as any one described pivot corner restricting means of claim 1 to 4, it is characterized in that: the pin-joint part is a pivot hole, first joint, second joint be can with the projection of pivot hole fit.

11. as right 1 or 4 any one described pivot corner restricting means, it is characterized in that: guide sliding part is a slotted hole, first joint, second joint are for stretching into the projection in the slotted hole.

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