CN217708389U - Crank arm awning winding device - Google Patents

Abstract

The utility model discloses a crank arm sunshade coiling mechanism, including end cover, winding mechanism, interpolation and central axle. Compared with the prior art, in the device, the winding mechanism adopts the combination of a torsion spring and a concentric shaft pipe, the concentric shaft pipe sleeve is clamped at the center of the torsion spring to realize the stability of preventing eccentric abnormal sound and winding, one end of the torsion spring is fixedly connected on the central shaft, the other end of the torsion spring is fixedly connected on an inner plug, and the inner plug is rotatably arranged on the central shaft. Coiling mechanism still be equipped with the spool that is used for rolling puggaree, can follow the axis dysmorphism when the torsional spring atress, prevent great distortion, also prevent that the atress of torsional spring from deviating from.

Description

Crank arm awning winding device

Technical Field

The utility model belongs to sunshade rolling technique, concretely relates to crank arm sunshade coiling mechanism.

Background

The sunshade, the solar protection devices that the curtain cloth of a soft material and support frame combine, in order to realize pleasing to the eye clean and tidy, the mode that adopts the rolling is mostly taken in to the rolling of curtain cloth. The sunshade is used on the existing motor home, a balcony, a windowsill and the like, and can be unfolded to realize sunshade and avoid direct sunlight.

The framework of the crank arm awning adopts a telescopic form, and the crank arm awning shows that most of the crank arm awning drives the aluminum alloy roller pipe to rotate through the rotation of the motor according to the disclosed prior art, so that the fabric can be folded and unfolded, when the motor loosens the fabric, the spring force in the arm acts on the front rod, the awning cloth is stretched out and tightened, and when the motor is rewound, the motor overcomes the spring force to recover the fabric to the roller pipe.

The torsional spring has extensive application in this type of rolling product, also can relate to in products such as shutter door, to in the awning, its elasticity that bears generally can satisfy the rolling of curtain cloth can, the awning of building on car as a house, sunshine terrace needs more nimble light, accomodates the convenience, the inside torsional spring structure live time of current awning has long will appear becoming flexible, the abnormal sound scheduling problem, the experience effect of use is not good.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: torsional spring structure appears warping easily and the abnormal sound scheduling problem in cranking arm sunshade to the current, the utility model provides a crank arm sunshade coiling mechanism.

The technical scheme is as follows: a winding device of a crank arm awning comprises an end cover, a winding mechanism, an inner insert and a central shaft, wherein the winding mechanism comprises a torsion spring and a concentric shaft pipe, the concentric shaft pipe is clamped in the center of the torsion spring, one end of the torsion spring is fixedly connected to the central shaft, the other end of the torsion spring is fixedly connected to the inner insert, and the inner insert is rotatably arranged on the central shaft; the winding device is further provided with a winding shaft for winding the sunshade cloth, one end of the winding shaft wraps the outer circle of the end cover to rotate, and the other end of the winding shaft is fixed with the inserted outer circle.

Furthermore, the outer circumference of the inner insert is provided with a gear for realizing fixation after meshing with the scroll, and the inner insert and the scroll synchronously rotate together; the structure for fixing one end of the torsion spring on the inner inserting side wall comprises a rectangular frame and a trapezoidal frame. Furthermore, the gear shape of the inner inserting outer side for meshing with the scroll is provided with a concave block part and a radian groove.

Furthermore, one side of the central shaft, which is close to the end cover, is provided with a fixing bar, and the fixing bar is clamped with the shell to prevent the central shaft from rotating.

Has the advantages that: compare with current crank arm sunshade, the utility model discloses cup joint the card to the center of torsional spring and have concentric central siphon, can prevent eccentric abnormal sound, the tip of concentric central siphon cup joints and also realizes convenient fixed torsional spring, prevents that the head atress from deviating from, and the design of interpolation also more makes things convenient for fixed torsional spring opposite side, combines the setting of spool, the device is more stable.

Drawings

Fig. 1 is a schematic structural view of the device of the present invention;

fig. 2 is a schematic diagram of the outside of the device of the present invention after being packaged by a reel.

Detailed Description

In order to explain the technical scheme of the invention in detail, the following is further described with reference to the attached drawings of the specification.

A crank arm awning mainly comprises a scroll used for rolling curtain cloth, wherein the curtain cloth is fixed through clamping or directly fixed on rolling through screws, a torsion spring is arranged inside the rolling to realize rolling control, the framework of the awning is similar to an arm shape, when the awning is unfolded through a motor or a hand-cranking mode, the curtain cloth is unfolded, certain tension exists in the torsion spring inside at the moment, and when the rolling is implemented, the scroll rotates under the action of tension contraction of the torsion spring, and the curtain cloth is rolled.

Combine fig. 1 and fig. 2, the utility model provides a pair of fluffy coiling mechanism of crank arm sunshade, including end cover 1, the winding mechanism 2 that torsional spring 201 and concentric shaft pipe 202 are constituteed realizes the interpolation 3 of torsional spring 201 effort transmission, and interpolation 3 is that the activity sets up on center pin 4, and interpolation 3 is rotatable. The outer side, namely the outer circumference, of the inserted shaft 3 is used for fixing the reel 5, the reel 5 rotates to realize the retraction of the curtain cloth, when the reel 5 retracts the sunshade cloth, the curtain cloth is dragged by the framework expanded by the sunshade cloth, the reel 5 is driven by the curtain cloth to rotate, the inserted shaft 3 inside rotates, the torsion spring 201 rotates and receives the torsion action, and as one end of the torsion spring 201 is fixed on the central shaft 4 and is fixed, the torsion spring 201 expands towards the outer circle and has the tendency to be retracted.

More specifically, the device includes a center shaft 4, and center shaft 4 is the dead axle, and one end is equipped with fixed thick stick 401 and is used for realizing fixing center shaft 4 on the shell of device, and then fixes on the wall. Set up fixed thick stick 401, also convenient adjust suitable position in the installation and fix again, for example in the installation, set up base and shell, through rotating in installation center pin 4, realize the position control of winding mechanism 2, winding mechanism 2 at this moment is the linkage to initial position has conveniently been adjusted in the installation, the curtain cloth is in the smooth initial position of rolling.

In the winding mechanism 2, the concentric shaft tube 202 is sleeved and clamped on the torsion spring 201, as shown in fig. 1, further indicating that one end of the concentric shaft tube 202 is fixed on one side of the central shaft 4 near the torsion spring 201, and one end of the concentric shaft tube 202 is provided with a raised annular portion and a gap for clamping the fixed end of the torsion spring 201. The concentric shaft tube 202 is located in the center of the torsion spring 201, and is fixed, and the arrangement of the concentric shaft tube 202 firstly realizes the separation of the torsion spring 201 from the central shaft 4, and further limits the deformable range of the torsion spring 201. The torsion spring 201 controls the rolling of the curtain cloth, so that the inner ring of the torsion spring 201 is large, the deformation caused by expansion and distortion after being stressed to the outside is large, the torsion spring in the awning is subjected to various distortion deformation, some contact central shafts 4 generate friction, and some contact inner walls of the shell generate abnormal sound.

The inner inserting part 3 fixes one end of the torsion spring 201 and is used for transmitting force to the torsion spring 201 to enable the torsion spring 201 to deform, the outer circumference of the inner inserting part 3 is also fixed with a winding shaft 5 used for winding the curtain cloth, and the winding shaft 5 is fixed at one end of the curtain cloth to realize winding. Interpolation 3 is equipped with rectangle frame 301 and trapezoidal frame 303 on the lateral wall, and the one end of torsional spring 201 is fixed in the frame, and the quantity of rectangle frame 301 and trapezoidal frame 303 also can set up a plurality ofly according to actual need, and the one end of torsional spring 201 is fixed back more stable, and fixed mode includes the clamp, or increases modes such as bolt fastening. For better linking with the external reel 5, the outer ring of the inner insert 3 is provided with a gear-like structure including a concave block 301 and a curved groove 304 as shown in fig. 1. The inside of the scroll 5 is provided with a structure matched with the external shape of the inserted pin 3, and the structure can be directly embedded and matched, and is convenient to install.

With reference to fig. 2, the winding shaft 5 winds the cord fabric, one end of the cord fabric is completely wrapped in the inner insertion part, one end of the cord fabric is in contact with the end cover 1, the wrapping part is arranged on the periphery of the end cover 1 and can rotate, after the cord fabric is unfolded in place, the cord fabric is fixed with the winding shaft 5 by inserting the bolt through the opening part or the through hole arranged on the end cover 1, and the cord fabric cannot be rewound due to the acting force of the torsion spring 201. In the structure shown in fig. 2, the transmission mechanism 6 for manually winding the curtain cloth is shown, the transmission mechanism 6 rotates through a hand-operated gear, then is reversed through a gear meshed with the hand-operated gear, and then is transmitted to the winding shaft 5 to wind the curtain cloth, the transmission mechanism is also applied to the existing awning, and the support 7 is used for better fixing and realizing adjustment.

The sunshade awning with simple and firm structure is more popular with users at the side window and outdoors of the motor home. The utility model discloses for current device, the fixed of torsional spring is more stable, and the coiling mechanism is also more firm, and the life-span that the device used is longer.

Claims (5)

1. The utility model provides a bent arm sunshade coiling mechanism, includes end cover (1), winding mechanism (2), interpolation (3) and central axle (4), its characterized in that: the winding mechanism (2) comprises a torsion spring (201) and a concentric shaft tube (202), the concentric shaft tube (202) is sleeved and clamped in the center of the torsion spring (201), one end of the torsion spring (201) is fixedly connected to the central shaft (4), the other end of the torsion spring is fixedly connected to the inner insertion piece (3), and the inner insertion piece (3) can be rotatably arranged on the central shaft (4); the winding device is further provided with a winding shaft (5) for winding the sunshade cloth, one end of the winding shaft (5) wraps the outer circle of the end cover (1) to rotate, and the other end of the winding shaft is fixedly connected with the outer circle of the inserted pin (3).

2. A crank arm awning retractor as claimed in claim 1, wherein: the outer circumference of the inner insert (3) is provided with a gear shape and is used for being meshed with the scroll (5) to realize fixation and synchronously rotating together with the scroll (5).

3. A crank arm awning retractor as claimed in claim 2, wherein: the structure used for fixing one end of the torsion spring (201) on the side wall of the inner inserting part (3) comprises a rectangular frame (301) and a trapezoidal frame (303).

4. The winding device of claim 2, wherein: the gear-shaped outer side of the inner insert (3) for meshing with the scroll (5) is provided with a concave block part (302) and a radian groove (304).

5. The winding device of claim 1, wherein: one side that center pin (4) are close to end cover (1) is equipped with fixed thick stick (401), prevents the rotation of center pin (4) behind fixed thick stick (401) and the shell joint.

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