CN216202057U - Rotary positioning structure - Google Patents

Abstract

The utility model is a rotating positioning structure, which mainly includes a connecting piece, the connecting piece has a plurality of positioning parts; The front end is located at the rear end of the connector, and the front end has a pivot hole and a through hole; a pivot assembly has a pivot, the front end of the pivot is connected to the connector, and passes through the pivot hole to pivot the front end of the seat, and the pivot assembly The rear end has a friction positioning component; the frame of a positioning module is fixed in the seat body, a pressing member is positioned in the middle of the frame, and the pressing part at the front end of the pressing member can move back and forth relative to the frame. After passing through the hole in the base, any positioning part of the connecting piece is positioned so that the connecting piece can be rotated and positioned at a fixed angle.

Description

Rotary positioning structure

technical field

The utility model relates to a rotary positioning structure, in particular to a structure capable of selectively rotating and positioning a supported object such as a display.

Background technique

Most of the traditional monitors have the function of adjusting the elevation angle to meet the viewing requirements of users of different sizes. The structure for adjusting the elevation angle is mainly arranged between the screen and the top of the bracket. For the existing dual-touch screen computer, liquid crystal display, liquid crystal TV or plasma TV, etc., the display can also be rotated 90 degrees relative to the support frame through a rotating component, so as to be placed horizontally or vertically, so that the user can The screen can be viewed from different angles.

Among them, such as the patent application for "display orientation adjustment device" with the publication number of CN1333587C, it is through the push and a pressure of a pair of concave cams (the first engaging part and the second engaging part) coaxially arranged on the shaft part The elastic action of the component makes the pin snap into the U-shaped notch to generate the automatic closing and positioning function, so that the display screen can be stagnant at a fixed angle when rotating.

In practice, the CN1333587C patent case is mainly connected by a pair of concave cams of the "first engaging part" and the "second engaging part" to generate an automatic closing and positioning function, so that the display screen can be stagnant at a fixed angle when rotating. superior. However, due to the difficulty of manufacturing precision and long-term wear and tear, after the two concave cams are butted against each other and rotated and worn, a gap is easily generated between the two concave cam elements, causing the screen to shake, even due to the sudden positioning function. The phenomenon of idling caused by loss of function.

Utility model content

In view of the above, in order to provide a structure that is different from the prior art and improve the above shortcomings, the inventor has accumulated many years of experience and continuous research and development improvement, so the present utility model is produced.

One object of the present invention is to provide a rotating positioning structure to solve the problem that the existing display orientation adjustment device uses a pair of concave cams for positioning, causing the screen to shake and even cause idling. A structure that tightly connects a connector and a base, and uses the pressing part of a positioning module to position the connector, so as to improve the stability of the screen when it rotates, and to make the display screen stably stagnate at a fixed angle after rotating. .

In order to achieve the above purpose, the rotation positioning structure provided by the present invention includes a connecting piece, a base, a pivot assembly and a positioning module. The connector has a plurality of positioning parts; the seat body has a front end, a left part and a right part, the left part and the right part are respectively formed by extending backward from both sides of the front end, and the front end is located in the connecting part. The rear end of the component, the front end has a pivot hole and a through hole; the pivot assembly has a pivot shaft, the front end of the pivot shaft is connected to the connecting piece, the pivot shaft passes through the pivot hole of the seat body for pivoting the front end of the seat body, The rear end of the pivot assembly has a friction positioning assembly; the positioning module includes a frame and a pressing member, the frame is fixed in the seat body, the pressing member is positioned in the frame, and the front end of the pressing member has a pressing portion, The pressing portion can move forward and backward relative to the frame, and the pressing portion passes through the perforation of the seat body for positioning any positioning portion of the connecting piece.

During implementation, the peripheral edge of the connecting piece has a first stopper portion and a second stopper portion, and the front end portion of the seat body has a protruding portion, and the protruding portion is located between the first stopper portion and the second stopper portion. During the time, when the base body rotates relative to the connecting piece, it can be limited to an angle.

During implementation, the present invention also includes a first damping sheet and a second damping sheet that are close to each other, the pivot shaft is coaxially pivoted to the first damping sheet and the second damping sheet, and one end of the first damping sheet has a first convex One end of the second damping sheet has a second convex part for clamping a second limiting groove on the periphery of the front end of the seat body.

During implementation, the friction positioning assembly includes at least one friction sheet coaxially positioned on the pivot shaft, a plurality of spring sheets and a cap for connecting the connecting piece and the seat body.

During implementation, the frame includes a left side plate, a right side plate and a rear end plate, and the left side plate and the right side plate are respectively formed by extending forward from two sides of the rear end plate.

During implementation, the front end of the left side plate has at least one first clamping block for clamping at least one first clamping groove on the periphery of the front end of the seat body; the front end of the side plate has at least one second clamping block for clamping the seat At least one second slot on the periphery of the front end of the body.

During implementation, the left side plate of the frame also has a left screw hole for connecting the left side plate and the left side after a left screw passes through the left side part of the base body; the right side plate of the frame also has a right screw hole. A screw hole is provided for connecting the right side plate and the right side after passing a right screw through the right side of the base body.

During implementation, the pressing member includes a pressing portion, an elastic portion and a limiting portion, the rear end of the pressing portion presses against the front end of the elastic portion, the rear end of the elastic portion presses the front end of the limiting portion, and the limit The part is connected to the rear end plate, and the pressing part can move forward and backward relative to the frame.

In implementation, the limiting portion has a shaft hole, the rear end plate has a screw hole, an adjusting screw passes through the screw hole to lock and connect the rear end plate, and the front end of the adjusting screw is pivotally connected to the shaft hole to connect the limiting portion.

When implemented, the pressing part includes a headed cover seat and a headed plug, one end of the headed cover passes through the perforation of the seat body, the headed cover has a through hole, the headed plug includes a head and a plug portion, and the plug portion passes through. There is a through hole of the head cover seat, and a ring groove is arranged on the outer peripheral edge of the plug portion for socketing an elastic sleeve ring.

During implementation, the outer peripheral edge of the plug portion is further sleeved with at least one elastic bushing set, and the at least one elastic bushing set is sandwiched between the head of the headed plug and the rear end of the headed socket.

During implementation, at least one elastic bushing set includes a first elastic bushing set and a second elastic bushing set which are superimposed on each other, the first elastic bushing set is close to the rear end of the headed socket, and the second elastic bushing set is close to the head of the headed plug. The thickness of the second elastic bushing set is greater than the thickness of the first elastic bushing set.

During implementation, the present invention further comprises a connecting seat, the front end of the connecting seat has at least one fork piece, and at least one fork piece pivots the left and right parts of the seat body in a reversible manner.

During implementation, at least one of the left side part and the right side part of the seat body also has a protruding rod, the front end of at least one fork piece has an upper stop part and a lower stop part, and any protruding rod is located on the upper stop part. Between it and the lower stop part, it is used to limit the pitching rotation angle of the seat body.

In order to facilitate a more in-depth understanding of the present utility model, it is now described in detail later.

Description of drawings

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the three-dimensional appearance schematic diagram before the preferred embodiment of the present invention is respectively connected with the back plate and the support frame;

FIG. 2 is an exploded view of part of the components of the preferred embodiment of the present invention;

3 is an exploded view of the components of the positioning module according to the preferred embodiment of the present invention;

4 is a cross-sectional view of another preferred embodiment of the elastic bushing set of the present invention;

Fig. 5 is the side view of the preferred embodiment of the present utility model;

6 is a side view of the preferred embodiment of the present utility model after the back plate is rotated by 90 degrees;

FIG. 7 is a schematic diagram of the three-dimensional appearance of the preferred embodiment of the present invention after the back plate is rotated by 90 degrees.

Description of reference numerals

1. Rotational positioning structure; 2. Connecting piece; 21. Shaft hole; 22. Positioning part; 22', positioning part; 3, seat body; 31, front end; 311, pivot hole; 312, perforation; 313, first slot; 314, second limit slot; 315, second slot; 316, protruding part; 32, Left side part; 33, right side part; 34, convex rod; 4, first damping sheet; 41, first convex part; 5, second damping sheet; 51, second convex part; 6, pivot assembly; 61 , pivot; 62, friction positioning assembly; 63, friction plate; 64, spring plate; 65, cap; 7, positioning module; 71, frame; 72, pressing part; 73, left side plate; 731, first 1 block; 732, left screw hole; 733, left screw; 74, right side plate; 741, second block; 742, right screw hole; 743, right screw; 75, rear end plate; 76, pressing part ;761, headed socket; 762, headed latch; 763, head; 764, latch part; 765, collar; 766, first elastic bushing set; 767, second elastic bushing set; 768, adjusting screw; 77, Elastic part; 78, limit part; 8, connecting seat; 81, fork piece; 811, upper stop part; 812, lower stop part; 9, back plate; 91, sleeve seat; 92, support frame.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described here, and those skilled in the art can do so without departing from the connotation of the present utility model. Therefore, the present invention is not limited by the specific embodiments disclosed below.

Please refer to FIG. 1 and FIG. 2, which is a preferred embodiment of the rotating positioning structure 1 of the present invention, which mainly includes a connecting piece 2, a base 3, a first damping sheet 4, a second damping sheet 5, A pivot assembly 6 , a positioning module 7 and a connecting seat 8 . In implementation, the direction of the present invention toward the connector 2 is defined as the front end, the direction opposite to the front end and toward the connection seat is defined as the rear end, and the left and right sides are respectively defined in the top view direction. Wherein, the connecting member 2 is a flat plate for locking on a backboard 9 on the rear side of a supported object such as a monitor or a photo frame; the connecting seat 8 is a rectangular frame body for locking and fixing in a sleeve seat 91 , one end of the sleeve seat 91 is combined with one side of the top end of a support frame 92 .

Please refer to FIG. 2-FIG. 5. The plate surface of the connector 2 has a positioning shaft hole 21 and two circular holes. The two circular holes are centered on the positioning shaft hole 21 and are distributed in a 90-degree direction. On the board surface of the connecting piece 2, the two circular holes serve as two positioning portions 22, 22'; the top of the peripheral edge of the connecting piece 2 has a first limiting groove 23; the oblique lower end of the peripheral edge of the connecting piece 2 There is an arc-shaped groove, and two sides of the arc-shaped groove are respectively used as the first stop part 24 and the second stop part 25 .

The seat body 3 is a continuously bent U-shaped plate body, which has a front end portion 31 , a left side portion 32 and a right side portion 33 . Both sides extend back to form. The front end portion 31 is located at the rear end of the connecting piece 2 , the central area of the front end portion 31 has a circular pivot hole 311 and a circular through hole 312 , and the left side of the peripheral edge of the front end portion 31 has a notch. As the first card slot 313 ; the right side of the peripheral edge of the front end portion 31 has two slots spaced apart from the top and the bottom, wherein the upper slot serves as the second limit slot 314 , and the lower slot serves as the second slot. Slot 315. A protruding piece extends forward from the bottom of the peripheral edge of the plate surface of the front end portion 31 . The protruding piece serves as a protruding portion 316 . The rear end plates of the left side portion 32 and the right side portion 33 are respectively provided with a screw hole, so that after a bolt is passed through, the right side surface of the left side portion 32 and the left side surface of the right side portion 33 are respectively provided with a screw hole. The axially opposed protruding rods 34 are respectively formed.

The first damping sheet 4 and the second damping sheet 5 are plates with a plurality of holes, respectively, and the two plates are close to each other and sandwiched between the connecting piece 2 and the front end 31 of the base body 3, so that the two damping The damping oil applied between the sheets can be retained in the plurality of holes. The top end of the first damping sheet 4 extends forward with a protruding piece, which serves as the first protruding portion 41 , and the first protruding portion 41 is snap-connected. The first limiting groove 23 at the top of the peripheral edge of the member 2; the right side of the second damping sheet 5 extends rearward with a protruding piece, the protruding piece serves as the second protruding portion 51, and the second protruding portion 51 is engaged with the front end portion 31 of the seat body 3. The second limiting groove 314 on the periphery.

The pivot assembly 6 includes a pivot shaft 61 and a friction positioning assembly 62. The pivot shaft 61 passes through the positioning shaft hole 21 of the connecting member 2, the first damping sheet 4, the second damping sheet 5 and the front end 31 in sequence from front to back. The circular pivot hole 311 is formed, so that the front end of the pivot shaft 61 is fixedly connected to the connecting piece 2, so that the pivot shaft 61 and the connecting piece 2 rotate synchronously, and the pivot shaft 61 is coaxially pivoted to the first damping sheet 4 and the second damping sheet 5 and the front end 31 of the seat body 3 . The friction positioning assembly 62 mainly includes a plurality of friction plates 63 coaxially positioned at the rear end of the pivot shaft 61 , a plurality of spring plates 64 and a cap 65 for tightly connecting the connecting piece 2 , the first damping plate 4 and the second damping plate 5 and the front end 31 of the base body 3 to prevent loosening, and can adjust the rotational frictional torque between the connecting piece 2 and the base body 3 .

The positioning module 7 includes a frame 71 and a pressing member 72. The frame 71 is a continuously bent U-shaped plate body, which has a left side plate 73, a right side plate 74 and a rear end plate 75. The left side plate 73 and the right side plate 74 are respectively formed by extending forwardly from the left and right sides of the rear end plate 75 . The front end of the left side plate 73 has two spaced first locking blocks 731, wherein the first locking block 731 located above is inserted into the first locking groove 313 on the left side of the peripheral edge of the front end 31 of the base body 3; the right side plate The front end of 74 has two spaced second locking blocks 741 , wherein the upper second locking block 741 is inserted into the second locking groove 315 on the right side of the periphery of the front end 31 of the base body 3 . In addition, the left side plate 73 also has a left screw hole 732 for connecting the left side plate 73 and the left side portion 32 after a left screw 733 passes through the left side portion 32; the right side plate 74 also has a right screw hole The hole 742 is used to connect the right side plate 74 and the right side portion 33 after a right screw 743 passes through the right side portion 33 , and to fix the frame 71 in the base body 3 .

The pressing member 72 is positioned in the frame 71 , and the pressing member 72 includes a pressing portion 76 , an elastic portion 77 and a limiting portion 78 arranged in sequence from front to back. The pressing portion 76 includes a headed cover seat 761 and a headed plug 762. The front end of the headed cover seat 761 passes through the through hole 312 of the front end 31 of the base body 3, and the headed cover seat 761 has a through hole; the headed plug 762 includes a head 763 And a pin part 764, the pin part 764 passes through the through hole of the headed socket 761, and the outer periphery of the pin part 764 is provided with a ring groove for socketing an elastic collar 765 such as positioning rubber, so that the pin part 764 is in the belt. The through hole of the head cover seat 761 moves stably and is not easy to tilt, and at least one elastic bushing set is sleeved on the outer periphery of the plug part 764, so that the at least one elastic bushing set is sandwiched between the head 763 of the headed plug 762 and the head 763 of the head plug 762. Between the rear ends of the headgear seat 761 to improve the situation of collision and abnormal noise. Wherein, in addition to being implemented as a single part as shown in FIG. 4 , at least one elastic bushing set may further include a first elastic bushing set 766 and a second elastic bushing set 767 which are superimposed on each other as shown in FIG. 3 . An elastic bushing set 766 is close to the rear end of the headed socket 761, and a second elastic bushing set 767 is close to the head 763 of the headed plug 762. The thickness of the second elastic bushing set 767 is greater than that of the first elastic bushing set 766 to share the To reduce the impact force, but not limited to this, in order to improve the flexibility of use, the thickness of the two elastic bushings can also be opposite, or choose to use any one of the same thickness, the same hardness and different hardness. Alternatively, a single elastic bushing can be formed into structural layers of different hardness. The elastic part 77 is a compression spring, the front end of the elastic part 77 presses the rear end head 763 of the headed plug 762 , the rear end of the elastic part 77 presses the front end protrusion of the limiting part 78 , and the limiting part 78 has a shaft hole There is a screw hole on the plate surface of the rear end plate 75, an adjustment screw 768 passes through the screw hole of the rear end plate 75 to lock and connect the rear end plate 75, and the front end of the adjustment screw 768 is connected to the shaft hole to connect the limit After the adjusting screw 768 is rotated, it is helpful to slightly adjust the compression amount of the elastic part 77 (adjust the elastic force); 764 locates one of the positioning portions 22 of the connector 2 .

A fork piece 81 is respectively provided on the left and right sides of the front end of the rectangular frame body of the connecting seat 8, and the two fork pieces 81 are pivotally connected to the left side 32 of the seat body 3 in a reversible manner through the elastic action of a torsion spring. with the right side part 33 on. The front end of any fork piece 81 has an arc-shaped groove, and the upper and lower ends of the arc-shaped groove have an upper stop portion 811 and a lower stop portion 812 respectively. The two protruding rods 34 are respectively located between the two sets of upper stop parts 811 and lower stop parts 812 , so as to limit the base body 3 to an angle when the base body 3 tilts relative to the connecting base 8 .

Please refer to FIG. 6 and FIG. 7 , when a supported object such as a display or a photo frame drives the connector 2 to rotate 90 degrees, the side of the protruding part 316 of the front end 31 of the base body 3 presses against the connector 2 . The second stop portion 25 and the latch portion 764 of the pressing portion 76 locate the other positioning portion 22 ′ of the connector 2 , so that the supported object and its back plate 9 can be stopped from continuing to rotate so as to be stably positioned at an angle.

To sum up, the utility model can not only pass the first and second double stop structures of the connecting piece and the latching part of the pressing part after the supported object such as the display or the photo frame is horizontally rotated relative to the support frame, Plug positioning, so that the supported object can be rotated to be firmly positioned in a horizontal or vertical position. And when the connector rotates relative to the base, the pin part of the pressing part can press the side plate surface of the connector tightly to achieve the effect of stable rotation; and by adjusting the tightness of the friction positioning component, the pin can be adjusted at the same time. The amount of pressing force of the plug portion and the rotational frictional torsion between the connector and the seat body make the stable rotation effect better; Double protection to ease the collision force from the axial and radial directions, and the elastic collar can also prevent the pin part from tilting in the through hole of the headed socket, so that when the abutting part moves forward and backward relative to the frame, it can form a drop. noise effect, and prolong the service life; and because the positioning module has a frame structure, it is not only more convenient for modular assembly, but also convenient for adjustment.

Although the present utility model discloses preferred specific embodiments to achieve the above-mentioned purpose, it is not intended to limit the structural features of the present utility model. Those skilled in the art should know that under the technical spirit of the present utility model, any easy Variations or modifications contemplated are all possible, and are all covered by the scope of the patent application of the present invention.

Claims (14)

1. A rotational positioning structure, having a front end and a rear end opposite to the front end, comprising:

a connecting piece, which is provided with a plurality of positioning parts;

a seat body, it has a front end, a left side and a right side, the left side and the right side are extended backward from two sides of the front end respectively, the front end is located at the back end of the connecting piece, the front end has a pivot hole and a through hole;

a pivot assembly having a pivot, the front end of the pivot being connected to the connecting member, the pivot passing through the pivot hole of the base for pivotally connecting the front end of the base, the rear end of the pivot assembly having a friction positioning assembly; and

and the positioning module comprises a frame and a pressing part, the frame is fixed in the seat body, the pressing part is positioned in the frame, the front end of the pressing part is provided with a pressing part, the pressing part can move back and forth relative to the frame in a telescopic manner, and the pressing part penetrates through the through hole of the seat body to position any positioning part of the connecting piece.

2. The rotational positioning structure of claim 1, wherein the connecting member has a first stop portion and a second stop portion at a periphery thereof, and the front end portion of the base has a protruding portion located between the first stop portion and the second stop portion, so that the base is limited to an angle when rotating relative to the connecting member.

3. The rotational positioning structure of claim 2, further comprising a first damping plate and a second damping plate adjacent to each other, wherein the pivot is coaxially pivoted with the first damping plate and the second damping plate, and one end of the first damping plate has a first protrusion for engaging with a first limiting groove at the periphery of the connecting member; one end of the second damping sheet is provided with a second convex part for clamping a second limit groove at the periphery of the front end part of the seat body.

4. A rotational positioning structure as claimed in claim 1, wherein said friction positioning assembly comprises at least one friction plate coaxially positioned on said pivot, a plurality of spring blades and a cap for connecting said connecting member with said housing.

5. The rotational positioning structure of claim 1, wherein the frame comprises a left side plate, a right side plate and a rear end plate, the left side plate and the right side plate are respectively formed by extending forward from two sides of the rear end plate.

6. The rotational positioning structure of claim 5, wherein the front end of the left side plate has at least one first engaging block for engaging with at least one first engaging groove on the periphery of the front end of the seat; the front end of the right side plate is provided with at least one second clamping block for clamping at least one second clamping groove on the periphery of the front end part of the seat body.

7. The rotational positioning structure according to claim 5 or 6, wherein the left side plate of the frame further has a left screw hole for connecting the left side plate and the left side portion after a left screw passes through the left side portion of the base; the right side plate of the frame is also provided with a right screw hole for connecting the right side plate and the right side part after a right screw passes through the right side part of the seat body.

8. The rotational positioning structure according to claim 5 or 6, wherein the pressing member includes a pressing portion, an elastic portion and a limiting portion, a rear end of the pressing portion presses against a front end of the elastic portion, a rear end of the elastic portion presses against a front end of the limiting portion, and the limiting portion is connected to the rear end plate for the pressing portion to move back and forth in a telescopic manner relative to the frame.

9. The rotational positioning structure of claim 8, wherein the position-limiting portion has an axial hole, the rear plate has a screw hole, an adjusting screw passes through the screw hole to connect with the rear plate in a locking manner, and the front end of the adjusting screw is coupled to the axial hole to connect with the position-limiting portion.

10. The rotational positioning structure of claim 8, wherein the pressing portion comprises a head sleeve seat and a head pin, one end of the head sleeve seat passes through the through hole of the seat body, the head sleeve seat has a through hole, the head pin comprises a head portion and a pin portion, the pin portion passes through the through hole of the head sleeve seat, and an annular groove is formed on an outer periphery of the pin portion for receiving an elastic sleeve ring.

11. The rotational positioning structure of claim 10, wherein the plug pin portion further comprises at least one elastic bushing member sleeved around an outer periphery thereof, the at least one elastic bushing member being interposed between the head portion of the headed plug pin and the rear end of the headed bushing seat.

12. The rotational positioning structure of claim 11, wherein the at least one resilient bushing member comprises a first resilient bushing member and a second resilient bushing member stacked on each other, the first resilient bushing member being proximate to the rear end of the headed socket, the second resilient bushing member being proximate to the head portion of the headed pin, the second resilient bushing member having a thickness greater than a thickness of the first resilient bushing member.

13. The rotational positioning structure of claim 1, further comprising a connecting base, wherein the connecting base has at least one fork piece at a front end thereof, and the at least one fork piece pivotally connects the left side portion and the right side portion of the base in a manner of returning to rotate.

14. The rotational positioning structure of claim 13, wherein at least one of the left side portion and the right side portion of the base further has a protruding rod, the front end of at least one fork has an upper stop portion and a lower stop portion, and any protruding rod is located between the upper stop portion and the lower stop portion for limiting the pitch angle of the base.

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