CN115387554A - Adjusting mechanism for pitching angle of crank arm sunshade - Google Patents
Adjusting mechanism for pitching angle of crank arm sunshade Download PDFInfo
- Publication number
- CN115387554A CN115387554A CN202211004763.4A CN202211004763A CN115387554A CN 115387554 A CN115387554 A CN 115387554A CN 202211004763 A CN202211004763 A CN 202211004763A CN 115387554 A CN115387554 A CN 115387554A
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- crank arm
- hole
- seat
- arm
- adjusting screw
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 230000009471 action Effects 0.000 claims abstract description 13
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- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0611—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0611—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind
- E04F10/0618—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind whereby the pivot axis of the articulation is perpendicular to the roller
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0637—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for adjusting the inclination of the blind
- E04F10/064—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for adjusting the inclination of the blind whereby the mechanism changes the inclination of the blind during unrolling
Abstract
The invention discloses a pitch angle adjusting mechanism of a crank arm awning, which comprises a wall seat, a crank arm and a hinged seat connected between the wall seat and the crank arm; an adjusting screw is arranged between the wall seat and the hinged seat, and the adjusting screw is rotated to change the thread fit distance between the adjusting screw and the adjusting nut so as to adjust the pitch angle of the unfolded crank arm; the hinged support is provided with a U-shaped pin capable of transversely and elastically moving, and a return spring is arranged between the U-shaped pin and the hinged support; when the crank arm is unfolded, the U-shaped pin has a double locking function, the first is locking of the adjusting function of the adjusting screw, the second is locking of the moving capacity of the hinged support, therefore, the position of the hinged support is locked, no matter how large the external acting force is, the rotation of the hinged support cannot be realized, so that the crank arm is prevented from shaking up and down under the action of wind force, the damage to the matching relation between the adjusting screw and the adjusting nut due to the action of the external force is also avoided, the structure of the whole mechanism is more stable and firm, and the service life is longer.
Description
Technical Field
The invention relates to a crank arm awning, in particular to a pitch angle adjusting mechanism of the crank arm awning.
Background
Outdoor awnings are installed in balconies, yards or public leisure areas to block rainwater or strong light.
Structurally, the awning comprises a support column and a sunshade component positioned above the support column; the sunshade component is divided into a fixed type and a movable type; the movable sunshade component is divided into a winding retractable type, a translation push-pull type and a turnover louver type so as to realize the opening or closing of the sunshade component.
An authorized notice number is CN 212562227U's bent arm type sunshade, is including being used for being fixed in back beam, bent arm, leading edge and the tarpaulin of wall.
Most of the angle adjustment of the awning in the current market is realized by adjusting the angle of the fixed awning of the wall seat, the adjustment is complicated, and the awning is likely to be damaged easily. In addition, the angle of the awning is adjusted by the partial awning through the arm seat adjuster, and meanwhile, the angle of the front edge is also adjusted, so that the front edge is matched with the cover when the awning is folded.
An authorized announcement number is CN 212453389U's pitch angle adjusting structure, the rear end of disclosing the bent arm is equipped with a rotating part, rotating part hub connection is on the base, rotating part is on the base through the round pin axle hub connection, be equipped with on the base with the round pin axle parallel and the rotation axis of off normal position round pin axle, the angle adjusting nail passes rotating part and the cooperation of the shaft hole on the rotation axis to adjust the pitch angle of bent arm through the stroke that penetrates of angle adjusting nail. And the rear end of the crank arm is provided with a movable limiting nail, and when the crank arm is unfolded, the movable limiting nail is pressed above the angle adjusting nail to limit the angle adjusting nail to move upwards.
However, in the actual use process, the awning in the unfolded state has a large area and is easy to shake up and down under the influence of wind power, so that the crank arm is subjected to the up-and-down acting force. Although the movable stopper pin in the above patent restricts the upward movement of the angle adjusting pin, the downward movement thereof is not restricted. Consequently under the exogenic action, the crank arm still takes place to rock from top to bottom easily, and the displacement of non-manpower effect takes place for angle modulation nail and rotation axis to make the screw thread wearing and tearing of angle modulation nail and rotation axis, and then lead to pitching angle and adjust the structure inefficacy.
Disclosure of Invention
In view of the technical problems, the invention provides a pitch angle adjusting mechanism for a crank arm awning, which can automatically position a crank arm in an unfolded state of the crank arm, prevent the crank arm from shaking up and down under the action of external force, improve the supporting stability of the awning, simultaneously prevent the mechanism from being worn by the action of the external force, and further prolong the service life of the mechanism.
The technical scheme adopted by the invention for solving the technical problems is as follows: the pitch angle adjusting mechanism of the crank arm awning comprises a wall seat, a crank arm and a hinged seat connected between the wall seat and the crank arm;
the hinged support is transversely pivoted on the wall seat, and the crank arm is longitudinally pivoted on the hinged support;
a rotatable adjusting nut is transversely arranged on the wall seat, and a rotatable screw rod seat is transversely arranged in the hinged seat;
an adjusting screw rod is arranged between the wall seat and the hinged seat, and the adjusting screw rod penetrates through the screw rod seat from the outer side of the hinged seat and extends into the adjusting nut;
the front end of the adjusting screw rod is matched with a threaded hole of the adjusting nut, and the rear end of the adjusting screw rod is limited outside the hinged support;
the hinged support is provided with a U-shaped pin capable of transversely and elastically moving, and a return spring is arranged between the U-shaped pin and the hinged support;
the U-shaped pin comprises a long arm and a short arm, the adjusting screw is provided with an annular clamping groove, and a shaft connecting end of the crank arm is provided with a boss;
the long arm penetrates through the hinged support, the tail end of the long arm extends to the shaft connection end of the crank arm, and the short arm penetrates through the hinged support, and the tail end of the short arm extends to the adjusting screw rod;
by rotating the adjusting screw rod, the thread fit distance between the adjusting screw rod and the adjusting nut can be changed to adjust the pitch angle of the unfolded crank arm;
when the crank arm is unfolded, the protruding part is far away from the U-shaped pin, the acting force applied to the tail end of the long arm is released, the U-shaped pin moves towards the shaft connection end of the crank arm through the reset spring, the tail end of the short arm is clamped into the annular clamping groove of the adjusting screw rod, the adjusting screw rod is abutted by the U-shaped pin and cannot move back and forth relative to the adjusting nut, and the unfolding angle of the crank arm is locked;
when the crank arm retracts, the protruding portion is close to the U-shaped pin, the tail end of the long arm is extruded by the protruding portion to enable the U-shaped pin to be forced to move outwards, the return spring is compressed, the tail end of the short arm leaves the annular clamping groove of the adjusting screw rod, and the crank arm can return to the initial position under the action of tensile force.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: a first through hole and a second through hole which are parallel to each other are arranged in the hinged support;
the screw rod seat is arranged in the first through hole, and the long arm of the U-shaped pin penetrates through the second through hole;
the screw rod seat is provided with a third through hole vertical to the first through hole and a fourth through hole vertical to and communicated with the third through hole;
the adjusting screw penetrates through the third through hole, the annular clamping groove is located at the intersection of the third through hole and the fourth through hole, and the short arm of the U-shaped pin extends into the third through hole to be matched with the annular clamping groove.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the middle section of the long arm of the U-shaped pin is provided with a propping part protruding from the peripheral surface of the long arm;
the hinged support is provided with an installation cavity for accommodating the return spring, and the return spring is sleeved outside the long arm;
one end of the return spring is abutted against the abutting part, and the other end of the return spring is abutted against the wall of the mounting cavity.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the abutting part is formed by an abutting pin which transversely penetrates through the long arm.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the adjusting screw rod comprises a limiting part, a neck part, a connecting part and a matching part provided with external threads from outside to inside;
the outer diameter of the limiting part is larger than that of the third through hole, and the outer diameters of the neck part, the connecting part and the matching part are smaller than that of the third through hole;
the external diameter of neck is less than spacing portion and connecting portion, the neck forms the ring groove who is located between spacing portion and the connecting portion outward.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the periphery of the screw rod seat is provided with an annular limiting groove, and the hinged support is provided with a limiting screw matched with the limiting groove;
the limiting screw is inserted into the limiting groove, so that the screw seat can rotate in the first through hole and cannot move transversely.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the crank arm shaft-connecting end comprises an arc-shaped side wall, and the bulge part is an arc-shaped cam sheet with gradually thickened thickness outside the arc-shaped side wall;
the side part of the hinged support is provided with a first shaft joint seat, and the shaft joint end of the crank arm is connected in a longitudinal shaft joint groove of the first shaft joint seat in a shaft joint way;
the tail end of the long arm of the U-shaped pin extends into the longitudinal shaft connecting groove and is matched with the arc-shaped cam piece rotated into the longitudinal shaft connecting groove.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the wall seat comprises a shaft connection part at the lower side and an adjusting part positioned above the rear side of the shaft connection part;
the adjusting part is provided with a transverse fifth through hole for arranging the adjusting nut and a sixth through hole which is vertical to and penetrates through the fifth through hole;
the shaft connecting part is connected in a second shaft connecting seat at the lower part of the hinged support through a transverse rotating shaft in a shaft mode;
the adjusting screw rod is matched with the threaded hole in the adjusting nut through the sixth through hole.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the wall seat is provided with an inwards concave avoiding area between the shaft connecting part and the adjusting part, so that the hinged support can rotate to a vertical position.
The invention adopts a further preferable technical scheme for solving the technical problems as follows: the front end of the adjusting screw is provided with an anti-falling pin, the front end of the adjusting screw penetrates through a threaded hole of the adjusting nut, and the anti-falling pin is limited by the outer wall of the adjusting nut.
Compared with the prior art, the invention has the advantages that: when the crank arm is unfolded, the U-shaped pin has a double locking function, the first is locking of the adjusting function of the adjusting screw, the second is locking of the moving capacity of the hinged support, therefore, the position of the hinged support is locked, no matter how large the external acting force is, the rotation of the hinged support cannot be realized, so that the crank arm is prevented from shaking up and down under the action of wind force, the damage to the matching relation between the adjusting screw and the adjusting nut due to the action of the external force is also avoided, the structure of the whole mechanism is more stable and firm, and the service life is longer.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a schematic view of a crank arm awning;
FIG. 2 is a schematic view of the tilt and tilt angle adjustment mechanism of the crank arm sunshade;
FIG. 3 is a schematic view of the crank arm deployed and retracted positions;
FIG. 4 is a schematic view of the crank arms in an extended and horizontal position;
FIG. 5 is a schematic view of the crank arms in an expanded and tilted state;
FIG. 6 is an exploded view of the tilt angle adjustment mechanism of the crank arm awning;
FIG. 7 is a schematic view of the hinged support of the pitch angle adjustment mechanism of the crank arm awning;
FIG. 8 is a schematic view of the U-pin of the tilt angle adjustment mechanism for the crank arm sunshade;
FIG. 9 is a schematic view of the tilt angle adjustment mechanism of the crank arm awning when the crank arm is deployed and tilted;
FIG. 10 is a first cross-sectional view of the tilt angle adjustment mechanism of the crank arm sunshade when the crank arm is deployed and tilted;
FIG. 11 is a second cross-sectional view of the tilt angle adjustment mechanism of the crank arm sunshade with the crank arm deployed and tilted;
FIG. 12 is a schematic view of the tilt and tilt angle adjustment mechanism of the crank arm awning with the crank arm retracted;
FIG. 13 is a cross-sectional view of the tilt angle adjustment mechanism of the crank arm awning with the crank arm retracted;
FIG. 14 is a schematic view of the pitch angle adjustment mechanism of the crank arm awning with the crank arm retracted;
fig. 15 is a diagram showing an actual inclination state when the crank arms are unfolded after adjustment based on fig. 14.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the crank arm awning includes a box-type rear beam H fixed to a wall and an awning body. The front side of the box-type back beam H is provided with an opening, and the sunshade tent body can extend out of the opening of the box-type back beam H to realize the unfolding purpose and can also be folded into the box-type back beam H from the opening of the box-type back beam H to realize the storage purpose.
And the awning body comprises a crank arm 9, a supporting front beam Q and awning cloth. The rear end of the crank arm 9 is attached inside the box-type rear beam H, and the front end of the crank arm 9 is attached to the support front beam Q. The tarpaulin is connected between box-type back beam H and support front beam Q. The crank arm 9 has a supporting function on the tarpaulin.
This embodiment provides a bent arm sunshade pitch angle adjustment mechanism 100, changes the pitch angle of the sunshade body through the regulation to the pitch angle of the bent arm 9 to realize different shielding effects as required.
As shown in fig. 2 to 6, the crank arm sunshade pitch angle adjusting mechanism 100 includes a wall mount 1, a crank arm 9, and a hinge mount 6 connected between the wall mount 1 and the crank arm 9. The wall base 1 is fixed in the box-type rear beam H, but it should be understood that the pitch angle adjusting mechanism of the crank arm awning is not limited to be applied to the crank arm awning with the box-type rear beam H, so the wall base 1 can be directly fixed on the wall.
As shown in fig. 3-5 and 14-15, the hinge base 6 is transversely pivoted on the wall base 1, and the crank arm 9 is longitudinally pivoted on the hinge base 6. Based on this, the hinged support 6 can drive the crank arm 9 to rotate up and down to realize the adjustment of the pitch angle, and the crank arm 9 can rotate left and right relative to the hinged support 6 to realize the unfolding and the retraction.
And the wall seat 1 is transversely provided with an adjusting nut 2, and a rotatable screw seat 5 is transversely arranged in the hinged seat 6. It should be noted that the axis of the adjusting nut 2, the axis of the screw seat 5 and the axis of rotation of the hinge seat 6 are all transverse and in a substantially parallel relationship. This is to adjust the rotation of the nut 2 and the screw boss 5 to the rotation of the hinge boss 6.
Furthermore, an adjusting screw 7 is arranged between the wall seat 1 and the hinged seat 6, and the adjusting screw 7 penetrates through the screw seat 5 from the outer side of the hinged seat 6 and extends into the adjusting nut 2; the front end of the adjusting screw 7 is matched with the threaded hole of the adjusting nut 2, and the rear end is limited outside the hinged support 6.
So far, as it is understood in connection with fig. 3-6, 14-15, the depth of the adjusting screw 7 extending into the adjusting nut 2 is different, and the length of the adjusting screw exposed to the adjusting nut 2 is adjusted. This means that the adjusting screw 7 provides a limited travel for the hinge support 6 to rotate outwards, which in turn limits the angle of rotation of the hinge support 6. By rotating the adjusting screw rod 7, the thread fit distance between the adjusting screw rod 7 and the adjusting nut 2 can be changed to adjust the pitch angle of the unfolded crank arm 9, so that the crank arm is in an inclined state. Preferably, the pitch angle adjustment angle is 0-30 °.
Meanwhile, the hinge base 6 is provided with a U-shaped pin 3,U which can move transversely and elastically, and a return spring 4 is arranged between the pin 3 and the hinge base 6. The movement of the clevis pin 3 causes the return spring 4 to compress or return to shape, and the return spring 4 compresses and accumulates shape energy to apply a force to the clevis pin 3 to cause the clevis pin 3 to move when released.
As shown in fig. 6 and 8, the U-shaped pin 3 comprises a long arm 32 and a short arm 33 connected by a bent arm 31.
As shown in fig. 10 and 13, the curved arm 31 is located on the side of the hinge base 6 away from the crank arm 9, and the long arm 32 and the short arm 33 extend through the hinge base 6 toward the side of the crank arm 9, respectively.
Wherein, adjusting screw 7 is equipped with ring groove S1 with U type round pin 3 complex, and crank arm axle connects end 90 and is equipped with bellying 8 with U type round pin 3 complex. The long arm 32 passes through the hinge base 6 and has a distal end extending toward the pivot end of the crank arm 9, and the short arm 33 passes through the hinge base 6 and has a distal end extending toward the adjusting screw 7.
Referring to fig. 9-11, when the crank arm 9 is unfolded, the protruding portion 8 is away from the U-shaped pin 3, the acting force applied to the end of the long arm 32 is released, the return spring 4 moves the U-shaped pin 3 toward the crank arm shaft end 90, the end of the short arm 33 is clamped into the annular clamping groove S1 of the adjusting screw 7, the adjusting screw 7 is supported by the U-shaped pin 3 and cannot move back and forth relative to the adjusting nut 2, and the unfolding angle of the crank arm 9 is locked.
As shown in fig. 12-13, when the crank arm 9 is retracted, the protrusion 8 is close to the U-shaped pin 3, the end of the long arm 32 is pressed by the protrusion 8 to force the U-shaped pin 3 to move outward, the return spring 4 is compressed, the end of the short arm 33 is separated from the ring-shaped slot S1 of the adjusting screw 7, and the crank arm 9 can return to the initial position under the action of the pulling force.
Therefore, when the crank arm 9 is spread by applying a rotational force, the U-shaped pin 3 is triggered by the long arm 32 losing its compression so that the end of the short arm 33 is caught in the ring-shaped catching groove S1 of the adjusting screw 7. Thus, a double locking function is achieved, wherein the first is locking of the adjusting function of the adjusting screw 7, and the adjusting screw 7 can not be rotationally adjusted forwards or backwards at the moment, so that the unfolding angle of the crank arm 9 is determined; secondly, the moving capacity of the hinged support 6 is locked, and the two ends of the U-shaped pin 3 fixed with the hinged support 6 in the rotating direction are limited by the adjusting screw rod 7, so that the hinged support 6 is locked, and cannot rotate no matter how large the external acting force is, so that the crank arm 9 is prevented from shaking up and down under the action of wind force, and the damage to the matching relation between the adjusting screw rod 7 and the adjusting nut 2 due to the action of the external force is also avoided. It can be seen that the structure of the whole mechanism is more stable and firm, and the service life is longer.
When the crank arm 9 is retracted by applying a rotational force, the boss 8 is rotated inward to press the long arm 32 of the U-pin 3, thereby releasing the lock of the U-pin 3 on the adjusting screw 7 and the lock of the hinge base 6. At this point, the adjusting screw 7 provides a limited rotation stroke of the hinge support 6, and exerts a pulling force on the crank arm 9 to move the hinge support 6 close to the wall mount 1, so that the crank arm 9 returns to the initial position. This function ensures that the crank arm 9 is always in line with the initial angle when retracted to close or about to close at any sunshade angle. Normally, in the initial position, the hinge base 6 is in a vertical state and the crank arm 9 is in a horizontal state.
In conclusion, no extra action is needed for unfolding and retracting, the pitch angle can be set only by rotating the adjusting screw rod 7, and the operation is very simple and convenient.
Specifically, as shown in fig. 6 and 7, a first through hole K1 and a second through hole K2 are provided in the hinge base 6 and are parallel to each other; the screw rod seat 5 is arranged in the first through hole K1, and the long arm 32 of the U-shaped pin 3 penetrates through the second through hole K2. The screw rod seat 5 is provided with a third through hole K3 vertical to the first through hole K1 and a fourth through hole K4 vertical to and communicated with the third through hole K3; adjusting screw 7 passes through third through-hole K3, and ring groove S1 is located the crossing department of third through-hole K3 and fourth through-hole K4, and the short arm 33 of U type round pin 3 stretches into third through-hole K3 and ring groove S1 cooperation.
As shown in fig. 6, the wall base 1 includes a lower shaft coupling portion 11 and an adjusting portion 12 located above the rear side of the shaft coupling portion 11; the adjusting part 12 is provided with a transverse fifth through hole K5 for arranging the adjusting nut 2 and a sixth through hole K6 which is vertical to and penetrates through the fifth through hole K5; the shaft-connecting part 11 is connected to the lower part of the hinged support 6 through a transverse rotating shaft 10; the adjusting screw 7 is matched with a threaded hole in the adjusting nut 2 through a sixth through hole K6.
As shown in fig. 6, the wall socket 1 is provided with a recessed escape area B between the shaft connection 11 and the adjustment part 12 so that the hinge socket 6 can be rotated to the vertical position.
Preferably, the coupling portion 11 and the adjustment portion 12 are cylindrical structures parallel to each other, and are connected by an arc-shaped wall, and an area above the arc-shaped wall forms an avoidance area. And the lower area of the arc-shaped wall forms a hollow L. The hollow L is arranged to reduce the material consumption of the wall seat 1, save the processing cost and reduce the weight of the wall seat 1.
As shown in fig. 6, the adjusting screw 7 includes, from outside to inside, a limiting portion 71, a neck portion 72, a connecting portion 73, and a fitting portion 74 provided with external threads; the outer diameter of the limiting part is larger than that of the third through hole K3, and the outer diameters of the neck part 72, the connecting part 73 and the matching part 74 are smaller than that of the third through hole K3; the neck portion 72 has an outer diameter smaller than the stopper portion 71 and the connecting portion 73, and the neck portion 72 is formed with a ring-shaped groove S1 between the stopper portion 71 and the connecting portion 73.
The limiting part 71 limits the position relation between the outer end of the adjusting screw 7 and the hinged support 6, and when the hinged support 6 is unfolded angularly, the limiting part 71 abuts against the lower surface of the hinged support 6 so as to limit the hinged support 6 to rotate further. The stop portion 71 furthermore provides an operating end for adjusting the adjusting screw 7. In this embodiment, preferably, the end surface of the limiting portion 71 is provided with an inner hexagonal groove, and the inner hexagonal groove cooperates with an inner hexagonal wrench to realize rotation adjustment.
As shown in fig. 6 to 7, the hinge base 6 is provided at a side thereof with a first bearing seat 61, and the crank arm shaft-receiving end 90 is journaled in a longitudinal shaft-receiving groove C1 of the first bearing seat 61. The lower part of the hinged support 6 is provided with a second shaft joint seat 62, and the shaft joint part 11 of the wall seat 1 is axially connected in a transverse shaft joint groove C2 of the second shaft joint seat 62.
Preferably, as shown in fig. 6, the transverse rotating shaft 10 of the wall socket 1 and the hinge socket 6 is a hexagon socket head cap screw. A hexagon socket head cap screw is inserted into the shaft hole of the second bearing block 62 from the side of the hinge block 6 remote from the crank arm 9 to provide a rotation shaft. It should be noted that the socket head cap bolts are coupled in such a manner as to facilitate the disassembly and maintenance of the wall socket 1 and the hinge socket 6.
As shown in fig. 6 and 7, for the installation of the screw base 5, the screw base 5 has a cylindrical structure so that it can rotate in the first through hole K1. The periphery of the screw rod seat 5 is provided with an annular limiting groove S2, and the hinged support 6 is provided with a limiting screw F1 matched with the limiting groove S2. This limit screw F1 can be inserted into the first through hole K1 from the outer surface of the anchor 6. When the limiting screw F1 is inserted into the limiting groove S2, the screw seat 5 can rotate in the first through hole K1 and cannot move laterally. In this way, the lateral position of the screw seat 5 is determined, while its rotational capacity is not limited. Further, the cooperation of limiting screw F1 and spacing groove S2 can also play the guide effect to the screw base 5 rotation for whole mechanism operation is more stable smooth.
As shown in fig. 10 and 15, the hinge base 6 is provided with a mounting cavity for accommodating the return spring 4, the mounting cavity should be concentric with the second through hole K2 penetrating the long arm 32, the return spring 4 is sleeved outside the long arm 32, and the return spring 4 is limited in the mounting cavity. Wherein, the middle section of the long arm 32 of the U-shaped pin 3 is provided with a butting part protruding from the peripheral surface of the long arm 32; one end of the return spring 4 is propped against the propping part, and the other end is propped against the wall of the mounting cavity. Therefore, when the long arm 32 retreats outwards, the return spring 4 is compressed by the pressing of the abutting part and the cavity wall, and after the acting force on the long arm 32 is removed, the return spring 4 restores to be deformed in the direction away from the cavity wall.
Preferably, this abutment is formed by an abutment pin F2 which crosses the long arm 32. It should be understood that the mounting cavity of the hinge base 6 also provides a space for avoiding the pin F2, thereby ensuring the movement of the long arm 32.
As shown in fig. 6, the front end of the adjusting screw 7 is provided with an anti-drop pin F3, the front end of the adjusting screw 7 passes through the threaded hole of the adjusting nut 2, and the anti-drop pin F3 is limited by the outer wall of the adjusting nut 2. The anti-drop pin F3 is arranged to prevent the adjusting screw 7 from being separated by transitional rotation, so that the complex operation of installation after separation is avoided.
As shown in fig. 6, the crank arm pivot end 90 includes an arc-shaped sidewall T, and the protrusion 8 is an arc-shaped cam piece 8 whose thickness is gradually increased outside the arc-shaped sidewall T; the end of the long arm 32 of the clevis pin 3 extends into the longitudinal pivot slot C1 and engages the arcuate cam segment 8 that rotates into the longitudinal pivot slot C1. The arc cam piece 8 with gradually increased thickness enables the U-shaped pin 3 to move gradually in the process of unfolding the crank arm 9, and the U-shaped pin can play a role in damping in addition to a locking function by matching with the elastic force of the return spring 4.
The present invention has been described above with reference to a crank arm awning pitch angle adjustment mechanism, and the principles and embodiments of the present invention are described herein with reference to specific examples, which are provided only to assist understanding of the present invention and the core concepts.
It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. Crank arm sunshade pitching angle adjustment mechanism, its characterized in that:
comprises a wall seat, a crank arm and a hinged support connected between the wall seat and the crank arm;
the hinged support is transversely pivoted on the wall seat, and the crank arm is longitudinally pivoted on the hinged support;
the wall seat is transversely provided with an adjusting nut, and a rotatable screw rod seat is transversely arranged in the hinged support;
an adjusting screw rod is arranged between the wall seat and the hinged seat, penetrates through the screw rod seat from the outer side of the hinged seat and extends into the adjusting nut;
the front end of the adjusting screw rod is matched with a threaded hole of the adjusting nut, and the rear end of the adjusting screw rod is limited outside the hinged support;
the hinged support is provided with a U-shaped pin capable of transversely and elastically moving, and a return spring is arranged between the U-shaped pin and the hinged support;
the U-shaped pin comprises a long arm and a short arm, the adjusting screw is provided with an annular clamping groove, and a shaft connecting end of the crank arm is provided with a boss;
the long arm penetrates through the hinged support, the tail end of the long arm extends to the shaft-connecting end of the crank arm, and the short arm penetrates through the hinged support, and the tail end of the short arm extends to the adjusting screw rod;
by rotating the adjusting screw rod, the thread fit distance between the adjusting screw rod and the adjusting nut can be changed to adjust the pitch angle of the unfolded crank arm;
when the crank arm is unfolded, the protruding part is far away from the U-shaped pin, the acting force applied to the tail end of the long arm is released, the U-shaped pin moves towards the shaft connection end of the crank arm through the reset spring, the tail end of the short arm is clamped into the annular clamping groove of the adjusting screw rod, the adjusting screw rod is abutted by the U-shaped pin and cannot move back and forth relative to the adjusting nut, and the unfolding angle of the crank arm is locked;
when the crank arm retracts, the protruding portion is close to the U-shaped pin, the tail end of the long arm is extruded by the protruding portion to enable the U-shaped pin to be stressed and retract outwards, the return spring is compressed, the tail end of the short arm leaves the annular clamping groove of the adjusting screw, and the crank arm can return to the initial position under the action of pulling force.
2. The tilt angle adjustment mechanism for a crank arm awning according to claim 1, wherein:
a first through hole and a second through hole which are parallel to each other are arranged in the hinged support;
the screw rod seat is arranged in the first through hole, and the long arm of the U-shaped pin penetrates through the second through hole;
the screw rod seat is provided with a third through hole vertical to the first through hole and a fourth through hole vertical to and communicated with the third through hole;
the adjusting screw penetrates through the third through hole, the annular clamping groove is located at the intersection of the third through hole and the fourth through hole, and the short arm of the U-shaped pin extends into the third through hole to be matched with the annular clamping groove.
3. The tilt angle adjustment mechanism for a crank arm awning according to claim 1, wherein:
the middle section of the long arm of the U-shaped pin is provided with a propping part protruding from the peripheral surface of the long arm;
the hinged support is provided with an installation cavity for accommodating the return spring, and the return spring is sleeved outside the long arm;
one end of the return spring is abutted against the abutting part, and the other end of the return spring is abutted against the wall of the installation cavity.
4. A crank arm awning pitch angle adjustment mechanism according to claim 3, wherein said abutment is formed by an abutment pin traversing the long arm.
5. A crank arm awning pitch angle adjustment mechanism according to claim 2, wherein:
the adjusting screw rod comprises a limiting part, a neck part, a connecting part and a matching part provided with external threads from outside to inside;
the outer diameter of the limiting part is larger than that of the third through hole, and the outer diameters of the neck part, the connecting part and the matching part are smaller than that of the third through hole;
the external diameter of neck is less than spacing portion and connecting portion, the neck forms the ring groove who is located between spacing portion and the connecting portion outward.
6. The tilt angle adjustment mechanism for a crank arm awning according to claim 2, wherein:
the periphery of the screw rod seat is provided with an annular limiting groove, and the hinged support is provided with a limiting screw matched with the limiting groove;
the limiting screw is inserted into the limiting groove, so that the screw seat can rotate in the first through hole and cannot move transversely.
7. The tilt angle adjustment mechanism for a crank arm awning according to claim 1, wherein:
the crank arm shaft-connecting end comprises an arc-shaped side wall, and the bulge part is an arc-shaped cam sheet with gradually thickened thickness outside the arc-shaped side wall;
the side part of the hinged support is provided with a first shaft joint seat, and the shaft joint end of the crank arm is connected in a longitudinal shaft joint groove of the first shaft joint seat in a shaft joint way;
the tail end of the long arm of the U-shaped pin extends into the longitudinal shaft connecting groove and is matched with the arc-shaped cam piece rotated into the longitudinal shaft connecting groove.
8. A crank arm awning pitch angle adjustment mechanism according to claim 1, wherein:
the wall seat comprises a shaft connection part at the lower side and an adjusting part positioned above the rear side of the shaft connection part;
the adjusting part is provided with a transverse fifth through hole for arranging the adjusting nut and a sixth through hole which is vertical to and penetrates through the fifth through hole;
the shaft connecting part is connected in a second shaft connecting seat at the lower part of the hinged support through a transverse rotating shaft in a shaft mode;
the adjusting screw rod is matched with the threaded hole in the adjusting nut through the sixth through hole.
9. The tilt angle adjustment mechanism for a crank arm awning as claimed in claim 8, wherein said wall mount is provided with a recessed relief area between the pivot portion and the adjustment portion to allow said hinged mount to be pivoted to an upright position.
10. The pitch angle adjusting mechanism of a crank arm awning as claimed in claim 1, wherein an anti-drop pin is provided at the front end of the adjusting screw, the front end of the adjusting screw passes through a threaded hole of the adjusting nut, and the anti-drop pin is restricted by the outer wall of the adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004763.4A CN115387554A (en) | 2022-08-22 | 2022-08-22 | Adjusting mechanism for pitching angle of crank arm sunshade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004763.4A CN115387554A (en) | 2022-08-22 | 2022-08-22 | Adjusting mechanism for pitching angle of crank arm sunshade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115387554A true CN115387554A (en) | 2022-11-25 |
Family
ID=84119711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211004763.4A Pending CN115387554A (en) | 2022-08-22 | 2022-08-22 | Adjusting mechanism for pitching angle of crank arm sunshade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115387554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116411685A (en) * | 2023-04-07 | 2023-07-11 | 浙江湖州森富机电有限责任公司 | Ceiling awning curtain motor control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030108259A1 (en) * | 1999-10-14 | 2003-06-12 | Karl Hesener | Arm bearing for an articulated-arm awning |
| US20120273144A1 (en) * | 2010-10-26 | 2012-11-01 | Llaza, S.A. | Pivoting support assembly with locking device for an awning arm |
| CN203247936U (en) * | 2013-05-07 | 2013-10-23 | 浙江美佳机电科技有限公司 | Angle adjuster for awning |
| CN211172771U (en) * | 2019-11-07 | 2020-08-04 | 十千遮阳科技(佛山)有限公司 | Sunshade crank arm mounting structure, folding crank arm and box-packed sunshade |
| CN113719040A (en) * | 2020-05-26 | 2021-11-30 | 中标(浙江)智能技术有限公司 | Anti-shake structure and crank arm type awning |
-
2022
- 2022-08-22 CN CN202211004763.4A patent/CN115387554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030108259A1 (en) * | 1999-10-14 | 2003-06-12 | Karl Hesener | Arm bearing for an articulated-arm awning |
| US20120273144A1 (en) * | 2010-10-26 | 2012-11-01 | Llaza, S.A. | Pivoting support assembly with locking device for an awning arm |
| CN203247936U (en) * | 2013-05-07 | 2013-10-23 | 浙江美佳机电科技有限公司 | Angle adjuster for awning |
| CN211172771U (en) * | 2019-11-07 | 2020-08-04 | 十千遮阳科技(佛山)有限公司 | Sunshade crank arm mounting structure, folding crank arm and box-packed sunshade |
| CN113719040A (en) * | 2020-05-26 | 2021-11-30 | 中标(浙江)智能技术有限公司 | Anti-shake structure and crank arm type awning |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116411685A (en) * | 2023-04-07 | 2023-07-11 | 浙江湖州森富机电有限责任公司 | Ceiling awning curtain motor control system |
| CN116411685B (en) * | 2023-04-07 | 2023-08-29 | 浙江湖州森富机电有限责任公司 | Ceiling awning curtain motor control system |
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