TWM623739U - Rotation positioning structure - Google Patents

Abstract

The present invention is a rotating positioning structure, which mainly includes a connecting piece, and the connecting piece has a plurality of positioning parts; The rear end, 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 connecting piece, and passes through the pivot hole to pivot the front end of the seat, and the rear end of the pivot assembly has a friction positioning The frame of a positioning module is fixed in the seat body, and a pressing member is positioned in the frame. The pressing part at the front end of the pressing member can move forward and backward relative to the frame, and the pressing part passes through the perforation of the seat body. Afterwards, any positioning portion of the connecting piece is positioned, so that the connecting piece can be rotated and positioned at a fixed angle.

Description

Rotational positioning structure

This work is about a rotary positioning structure, especially a kind of rotary positioning device that can selectively rotate a supported object such as a display.

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

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

In practical use, the CN1333587C patent is mainly connected by a pair of concave cams of the "first joint part" and the "second joint part", so as 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 the long-term wear factor, after the two concave cams are connected to each other and rotated and worn, a gap is easily formed between the two concave cam elements, causing the screen to shake, even due to the positioning function. The sudden loss of function causes the phenomenon of idling. In view of this, in order to provide a structure that is different from the conventional technology and improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvement, so this creation came into being.

The purpose of this invention is to provide a rotating positioning structure, so as to solve the problem of using a pair of concave cams for positioning in the conventional display orientation adjustment device, which will cause the screen to shake and even cause the phenomenon of idling. The structure of tightly connecting a connecting piece and a base, and positioning the connecting piece with the pressing part of a positioning module, can improve the stability of the screen when it rotates, and make the display screen stably stagnate in a fixed position after rotating. angle.

In order to achieve the purpose of the above creation, the rotation positioning structure set in this creation includes a connecting piece, a base, a pivoting component 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 respectively extend backward from both sides of the front end, the front end is located at the rear end of the connector, and the front end part is located at the rear end of the connector. There is a pivot hole and a through hole; the pivot assembly has a pivot, the front end of the pivot is connected to the connecting piece, the pivot passes through the pivot hole of the seat body for pivoting the front end of the seat, and the rear end of the pivot assembly has a The 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, and the pressing portion can be opposite to the front and rear of the frame. During telescopic movement, the pressing portion passes through the perforation of the base 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.

When implemented, the present invention further 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 portion, One end of the second damping piece has a second convex portion for clamping a second limiting groove on the periphery of the front end portion of the base.

During implementation, the friction positioning assembly includes at least one friction plate coaxially positioned on the pivot shaft, a plurality of spring plates 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 respectively extend 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 body. At least one second slot on the periphery of the front end.

When implemented, the left side plate of the frame has a left screw hole for connecting the left side plate and the left side after a left screw passes through the left side of the base body; the right side plate of the frame has a right screw hole for After a right screw is passed through the right side of the base body, the right side plate and the right side are connected.

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

When implemented, 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 portion includes a headed cover seat and a headed plug, one end of the headed cover passes through the through hole of the base body, the headed cover base 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 sleeve seat, and a ring groove is arranged on the outer periphery of the plug portion for sleeved with 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 lining set is greater than the thickness of the first elastic lining set.

When implemented, the present invention further includes a connecting seat, the front end of the connecting seat has at least one fork piece, and the at least one fork piece is pivotally connected to the left side and the right side of the base body in a rotatable manner.

During implementation, at least one of the left side part and the left side part of the seat body 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 and the lower stop part. Between the stop parts, it is used to limit the pitching rotation angle of the seat body.

In order to facilitate a deeper understanding of this creation, it is detailed below:

Please refer to FIG. 1 and FIG. 2 , which is a preferred embodiment of the rotational positioning structure 1 created, which mainly includes a connecting piece 2 , a base 3 , a first damping sheet 4 , a second damping sheet 5 , a A pivot assembly 6 , a positioning module 7 and a connecting seat 8 . In implementation, the direction facing the connector 2 is defined as the front end, the direction opposite to the front end and toward the connecting 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 to 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 parts (22, 22'); the top of the peripheral edge of the board surface of the connecting piece 2 has a first limiting groove 23; the board surface of the connecting piece 2 The oblique lower end of the peripheral edge has an arc-shaped groove, and two side surfaces of the arc-shaped groove are used as the first stopper portion 24 and the second stopper portion 25 respectively.

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 . The left side portion 32 and the right side portion 33 respectively extend backward from the left and right sides of the front end portion 31 . . 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, the notch serves as a The first card slot 313; the right side of the peripheral edge of the front end portion 31 has two notches spaced above and below, wherein the upper groove is used as the second limiting groove 314, and the lower groove is used as the second card 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 left side portion 32 and the right side portion 33 are respectively provided with a screw hole on the rear end plate, so that after a bolt is passed through respectively, axially opposite protrusions are formed on the right side surface of the left side portion 32 and the left side surface of the right side portion 33 respectively. Rod 34.

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 clamped. The first limiting groove 23 at the top of the peripheral edge of the connecting piece 2; the right side of the second damping sheet 5 extends rearward with a protruding piece, the protruding piece is used as the second protruding part 51, and the second protruding part 51 is engaged with the front end 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 sequentially from front to back. The circular pivot hole 311 allows the front end of the pivot shaft 61 to be fixedly connected to the connecting piece 2, allowing the pivot shaft 61 to rotate synchronously with the connecting piece 2, and allowing the pivot shaft 61 to coaxially pivot 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 75. The plate 74 is formed by extending forward from the left and right sides of the rear end plate 75 respectively. The front end of the left side plate 73 has two spaced first locking blocks 731 , wherein the upper first locking block 731 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 front end of the right side plate 74 There are 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 further has a left screw hole 732, so that after a left screw 733 passes through the left side portion 32, the left side plate 73 and the left side portion 32 are connected; After a right screw 743 passes through the right side portion 33 , the right side plate 74 and the right side portion 33 are connected, and the frame 71 is fixed 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 (766, 767) is sleeved on the outer periphery of the plug portion 764, so that at least one elastic bushing set (766, 767) is clamped on the headed plug. Between the head 763 of the 762 and the rear end 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 lining set ( 766 , 767 ) may further include a first elastic lining set 766 and a second elastic lining which are overlapped with each other as shown in FIG. 3 . Set 767, the first elastic lining set 766 is close to the rear end of the headed socket 761, the second elastic lining set 767 is close to the head 763 of the headed plug 762, the thickness of the second elastic lining set 767 is greater than the thickness of the first elastic lining set 766, In order to share and reduce the collision 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 It can also be implemented by forming a single elastic bushing group into a structural layer of different hardness. The elastic portion 77 is a compression spring, the front end of the elastic portion 77 presses against the rear end head 763 of the headed plug 762, the rear end of the elastic portion 77 presses against the front end protruding column of the limiting portion 78, and the limiting portion 78 has a shaft hole, the rear end There is a screw hole on the plate surface of the 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 pivoted to the shaft hole to connect with the limiting portion 78, After the adjusting screw 768 is rotated, it is helpful to slightly adjust the amount of compression of the elastic portion 77 (adjust the amount of elastic force); allow the pressing portion 76 to move forward and backward relative to the frame 71, and allow the pin portion 764 of the pressing portion 76 to be positioned and connected One of the positioning parts 22 of the piece 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 connection seat 8, and the two fork pieces 81 are pivotally connected to the left side portion 32 of the seat body 3 and the left side portion 32 of the seat body 3 through the elastic action of a torsion spring. on the right side portion 33 . The front end of any fork piece 81 has an arc-shaped slot, and the upper and lower ends of the arc-shaped slot 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 protrusion 316 of the front end 31 of the base body 3 presses against the connector 2 . The second stopper portion 25 and the latch portion 764 of the pressing portion 76 locate the other positioning portion 22 ′ of the connecting member 2 , so as to stop the supported object and the back plate 9 from continuing to rotate, so as to be stably positioned at an angle .

To sum up, the present invention can not only rotate horizontally relative to the support frame, but also through the first and second double stop structures of the connecting piece and the insertion of the latch portion of the pressing portion. Then, let the supported object rotate to stabilize it in a horizontal or vertical position. And when the connector rotates relative to the base, the pin part of the pressing part can tightly press the side surface of the connector to achieve the effect of stable rotation; and by adjusting the tightness of the friction positioning component, the pin part can be adjusted at the same time. The amount of resisting force and the rotational frictional torque between the connecting piece and the base body make the stable rotation effect better; furthermore, at least one elastic collar and at least one elastic bushing are sleeved on the outer peripheral edge of the pin part to form 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 reduce the pressure. 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 this creation discloses preferred specific embodiments to achieve the above-mentioned purpose, it is not intended to limit the structural features of this creation. Variations or modifications thereof are possible and are all covered by the scope of the patent application for this creation.

1: Rotation positioning structure 2: Connector 21: Shaft hole 22,22': positioning part 23: The first limit slot 24: The first stop 25: Second stop 3: seat body 31: Front end 311: Pivot hole 312: Perforation 313: The first card slot 314: The second limit slot 315: The second card slot 316: Projection 32: Left side 33: Right side 34: Protruding rod 4: The first damping sheet 41: The first convex part 5: Second damping sheet 51: Second convex part 6: Pivot components 61: Pivot 62: Friction positioning assembly 63: Friction disc 64: spring leaf 65: cap 7: Positioning module 71: Frame 72: Pressing parts 73: Left side panel 731: The first block 732: Left screw hole 733: Left screw 74: Right side panel 741: Second block 742: Right screw hole 743: Right screw 75: Rear end plate 76: Pressing part 761: With head cover 762: Headed plug 763: Head 764: Latch Department 765: Collar 766: First Elastic Bushing Kit 767: Second Elastic Bushing Kit 768: Adjustment screw 77: Elastic part 78: Limiting part 8: Connector 81: Fork piece 811: Upper stop 812: Lower stop 9: Backplane 91: Socket seat 92: Support frame

﹝ FIG. 1 ﹞ is a three-dimensional appearance schematic diagram of the preferred embodiment of the present creation before it is connected with the back plate and the support frame respectively ﹝ FIG. 2 ﹞ is an exploded view of some components of the preferred embodiment of this creation. ﹝ FIG. 3 ﹞ is an exploded view of the components of the positioning module of the preferred embodiment of this creation. ﹝ FIG. 4 ﹞ is a cross-sectional view of another preferred embodiment of the elastic lining set of this creation. (Fig. 5) is a side view of the preferred embodiment of this creation. (Fig. 6) is a side view of the preferred embodiment of the present creation after the back plate is rotated 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 90 degrees.

1: Rotation positioning structure

2: Connector

3: seat body

6: Pivot components

7: Positioning module

8: Connector

9: Backplane

91: Socket seat

92: Support frame

Claims (14)

A rotary positioning structure has a front end and a rear end opposite to the front end, the rotary positioning structure comprising: a connecting piece, which has a plurality of positioning parts; A seat, which has a front end, a left side and a right side, the left side and the right side respectively extend backward from both sides of the front end, the front end is located at the rear end of the connecting piece, and the front end has a pivot hole and a perforation; a pivot assembly, which has a pivot, the front end of the pivot is connected to the connecting piece, the pivot passes through the pivot hole of the base for pivoting the front end of the base, the pivot is after the the end has a friction positioning assembly; and A 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, the front end of the pressing member has a pressing portion, the pressing portion It can telescopically move back and forth relative to the frame, and the pressing portion passes through the through hole of the base body for positioning any one of the positioning portions of the connecting piece. The rotation positioning structure of claim 1, wherein the peripheral edge of the connecting member has a first stopper portion and a second stopper portion, the front end portion of the base body has a protruding portion, and the protruding portion is located at the Between the first stop portion and the second stop portion, when the base body rotates relative to the connecting piece, it is limited to an angle. The rotational positioning structure of claim 2, further comprising a first damping sheet and a second damping sheet close to each other, the pivot shaft is coaxially pivoted to the first damping sheet and the second damping sheet, and the first damping sheet One end has a first convex portion for clamping a first limiting groove on the peripheral edge of the connecting piece; one end of the second damping sheet has a second convex portion for clamping the front end of the base body. a second limit slot. The rotation positioning structure of claim 1, wherein the friction positioning assembly comprises at least one friction plate coaxially positioned on the pivot shaft, a plurality of spring plates and a cap for connecting the connecting member and the base. The rotation positioning structure of claim 1, wherein the frame includes a left side plate, a right side plate and a rear end plate, the left side plate and the right side plate respectively extend forward from two sides of the rear end plate. The rotation positioning structure of claim 5, wherein the front end of the left side plate has at least one first latching block for engaging at least one first latching groove on the periphery of the front end portion of the base; the front end of the right side plate has at least one first latching block; The second clamping block is used for clamping at least one second clamping groove on the periphery of the front end portion of the base body. According to the rotation positioning structure of 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 part after a left screw passes through the left side part of the base body ; The right side plate of the frame has a right screw hole for connecting the right side plate and the right side portion after a right screw passes through the right side portion of the base body. The rotation positioning structure of claim 5 or 6, wherein the pressing member comprises a pressing portion, an elastic portion and a limiting portion, the rear end of the pressing portion abuts the front end of the elastic portion, and the rear end of the elastic portion The front end of the limiting portion is pressed, and the limiting portion is connected with the rear end plate, so that the pressing portion can move forward and backward relative to the frame. The rotation positioning structure of claim 8, wherein the limiting portion has a shaft hole, the rear end plate has a screw hole, an adjustment screw passes through the screw hole to lock and connect the rear end plate, and the front end of the adjustment screw The shaft is connected to the shaft hole to connect the limiting portion. The rotation positioning structure of claim 8, wherein the pressing portion comprises a headed socket and a headed plug, one end of the headed socket passes through the through hole of the base body, the headed socket has a through hole, the headed plug It includes a head and a pin part, the pin part passes through the through hole of the socket with the head, and the outer periphery of the pin part is provided with a ring groove for socketing an elastic collar. The rotational positioning structure of claim 10, wherein at least one elastic bushing set is sleeved on the outer periphery of the latch portion, 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 between. The rotational positioning structure of claim 11, wherein the at least one elastic bushing set comprises 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 housing, the A second elastic bushing set is close to the head of the headed plug, and the thickness of the second elastic bushing set is greater than that of the first elastic bushing set. The rotation positioning structure of claim 1, further comprising a connecting seat, the front end of the connecting seat has at least one fork piece, and the at least one fork piece is pivotally connected to the left side portion and the right side of the base body in a rotatable manner Department. The rotation positioning structure of claim 13, wherein at least one of the left side portion and the left side portion of the base body further has a protruding rod, and the front end of the at least one fork piece has an upper stop portion and a lower stop portion, The any one of the protruding rods is located between the upper stop portion and the lower stop portion for restricting the pitching rotation angle of the base.

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