CN109998247B

CN109998247B - Umbrella handle mechanism of rainproof sunshade umbrella

Info

Publication number: CN109998247B
Application number: CN201910278478.3A
Authority: CN
Inventors: 万军; 巩显勇
Original assignee: Jinan Jiangfuwan Automation Technology Co ltd
Current assignee: Jinan Jiangfuwan Automation Technology Co ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2021-02-23
Anticipated expiration: 2039-04-08
Also published as: CN109998247A

Abstract

The invention discloses an umbrella handle mechanism of a rainproof and sunshade umbrella, which comprises an umbrella bin, wherein a lifting mechanism is arranged in the umbrella bin, a turnover mechanism is arranged on the lifting mechanism, and the turnover mechanism is connected with an umbrella cover; the lifting mechanism comprises a lifting motor, the lifting motor drives a third screw rod to be connected, the third screw rod is coaxially sleeved with a third screw tube matched with the third screw rod, a nut is arranged outside the third screw tube in a matched mode, and the nut is connected with the turnover mechanism; the umbrella cover comprises fixed umbrella ribs, movable umbrella ribs and side ribs, wherein the fixed umbrella ribs, the movable umbrella ribs and the side ribs are hinged at the center of the umbrella cover, and the umbrella cloth is attached to a support formed after the fixed umbrella ribs, the movable umbrella ribs and the side ribs are unfolded. The umbrella cover is unfolded and folded in a folding fan mode. Can accomodate into umbrella stick mechanism with the umbrella face after folding in, connect the umbrella face in one side of umbrella face in addition, do not occupy too many warehousing and transportation space, do not occupy the space that the wheelchair took the people, adopt automatically controlled mode to realize unfolding by oneself and accomodating of this device, and accomodate the back and do not have obvious influence to wheelchair overall dimension and outward appearance to conveniently carry and wheelchair user operates by oneself.

Description

Umbrella handle mechanism of rainproof sunshade umbrella

Technical Field

The invention relates to the technical field of rain prevention and sun shading of electric wheelchairs, in particular to an umbrella handle mechanism of a rain-proof and sun-shading umbrella.

Background

The existing large non-handheld rainproof sunshade is basically long in handle, not telescopic, inconvenient to install in the center of an umbrella cover to divide the space below the umbrella cover, and needs a mechanism capable of retracting and storing the umbrella cover.

The existing wheelchair does not basically have the functions of shading sun and rain, the required umbrella surface of the wheelchair is large, the umbrella is basically impossible to hold for a long time, and the people sitting in the wheelchair are very inconvenient to hold the umbrella by hands, the existing umbrella is installed on the wheelchair, although the umbrella is convenient, the umbrella does not have the functions of unfolding and accommodating by self, manual operation is needed, the condition that the umbrella cannot be operated is likely to occur to people who cannot stand, namely, the umbrella cannot be unfolded and accommodated by the people using the wheelchair at any time according to the needs, and a great deal of inconvenience is brought to the people who use the wheelchair due to the inconvenience of moving, so that the safety, the comfort and the use convenience are poor. The rainproof sunshade umbrella is high in automation degree and convenient to fold, particularly an umbrella handle mechanism which can stretch and store a folded umbrella cover is needed, large umbrella storage space is large after the large umbrella is stored, and the problem that the large umbrella is stored automatically when being mounted on a wheelchair is solved.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides the umbrella handle mechanism of the rainproof sunshade. The foldable umbrella cover can be stored in the umbrella handle mechanism, one side of the umbrella cover is connected with the umbrella cover, too much storage and transportation space is not occupied, the space of a wheelchair user is not occupied, the device is automatically unfolded and stored in an electric control mode, and the appearance size and the appearance of the wheelchair are not obviously affected after the device is stored, so that the device is convenient to carry and is convenient for wheelchair users to operate.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an umbrella handle mechanism of a rainproof and sunshade umbrella comprises an umbrella bin, wherein a lifting mechanism is arranged in the umbrella bin, a turnover mechanism is arranged on the lifting mechanism, and the turnover mechanism is connected with an umbrella cover; the lifting mechanism comprises a lifting motor, the lifting motor drives a third screw rod to be connected, the third screw rod is coaxially sleeved with a third screw tube matched with the third screw rod, a nut is arranged outside the third screw tube in a matched mode, and the nut is connected with the turnover mechanism;

the umbrella cover comprises fixed umbrella ribs, movable umbrella ribs and side ribs, wherein the fixed umbrella ribs, the movable umbrella ribs and the side ribs are hinged at the center of the umbrella cover, and the umbrella cloth is attached to a support formed after the fixed umbrella ribs, the movable umbrella ribs and the side ribs are unfolded. The umbrella cover is unfolded and folded in a folding fan mode.

The lower end of the screw cylinder is provided with an internal thread matched with the lead screw III, and the top of the lead screw III is provided with a lead screw limit matched with the internal thread at the lower end of the screw cylinder. The screw rod is limited by an inverted cone part arranged at the top of the screw rod, an inverted cone is formed at the top of the screw rod to be expanded, a corresponding thread is arranged on the inverted cone part, and the screw rod is used for clamping an internal thread at the lower part of the screw cylinder when rotating to a limit position.

The structure form that the screw cylinder is sleeved with the screw rod is adopted, the basic idea is that a lifting motor drives and is connected with a screw rod III, a section of internal thread matched with the screw rod III is arranged in the screw cylinder, and therefore the screw rod drives the screw cylinder to ascend, and the screw cylinder drives the nut and the turnover mechanism on the nut to ascend. After the lifting motor drives the screw barrel to ascend, the screw barrel stops ascending and then rotates along with the screw rod III, the nut and the turnover mechanism on the nut are driven to ascend, and the sliding sleeve for assisting in ascending and descending is arranged in the umbrella bin to assist the screw barrel to convert from ascending to rotating, so that two sections of ascending generated by the driving of the lifting motor are formed, the structure is ingenious, and the cost is saved.

The turnover mechanism comprises an umbrella supporting motor, the umbrella supporting motor is fixed on a nut, the umbrella supporting motor is connected with a first lead screw in a driving mode, the upper end of the first lead screw is hinged to the outer end of an umbrella surface fixing rib, a turnover nut is arranged on the first lead screw in a matching mode, and the turnover nut is hinged to the umbrella surface fixing rib through a support rod; a first support and a second support are respectively arranged on the umbrella surface fixing ribs, the first lead screw is connected with a positioning seat at the upper end of the first lead screw through a bearing, the positioning seat is hinged with the first support, and the turnover nut is connected with the second support through a support rod.

When the last step of the wire barrel drives the nut and the turnover mechanism on the nut to the top end of the wire barrel, the lifting motor stops rotating, the umbrella supporting motor rotates to drive the turnover nut to ascend, then the turnover nut drives the supporting rod to support an umbrella cover (fixed umbrella ribs in the umbrella cover) which is combined together, and a corresponding sliding sleeve is also arranged to guarantee that the turnover nut does not rotate and only ascends.

The lifting mechanism comprises a second sliding sleeve and a first sliding sleeve, the lifting motor is fixed at the bottom of the umbrella bin, the second sliding sleeve is arranged in the umbrella bin in a sliding manner, the second sliding sleeve is connected to the wire barrel through an upper positioning seat at the top end of the wire barrel, the umbrella opening motor is fixed at one side of the nut, and the nut and the umbrella opening motor are arranged in the second sliding sleeve in a sliding manner; the first sliding sleeve is arranged in the second sliding sleeve in a sliding mode, the first sliding sleeve is connected to the first screw rod through a positioning seat at the upper end of the first screw rod, and the turnover nut is arranged in the first sliding sleeve in a sliding mode; the lower end of the third lead screw is connected to the umbrella bin through the lower positioning seat.

The second sliding sleeve slides up and down in the umbrella bin along with the upper positioning seat at the top end of the screw tube, the third screw rod and the screw tube are supported and limited by the upper positioning seat, and similarly, the first sliding sleeve slides in the second sliding sleeve along with the positioning seat at the upper end of the first screw rod, so that the turning nut is guided.

The first sliding sleeve is provided with a first long hole matched with the turnover nut to slide up and down, and the second sliding sleeve is provided with a second long hole matched with the turnover nut to slide up and down; the lower portion of the turnover nut is connected with a first dustproof sheet of the first plugging long hole, a second dustproof sheet mounting plate is mounted on the umbrella supporting motor, a second dustproof sheet of the second plugging long hole is connected to the second dustproof sheet mounting plate, and limiting edges which play a role in guiding the first dustproof sheet and the second dustproof sheet are arranged on the inner sides of the first long hole and the second long hole respectively.

When the umbrella opening action is carried out, the turnover nut needs to slide in the first sliding sleeve, the position connected with the support rod slides on the first long hole, and after the umbrella cover is folded and turned down, the position connected with the first sliding sleeve and the turnover nut support rod slides in the second long hole together. In order to prevent dust from entering from the two long holes after the umbrella is unfolded, corresponding dustproof sheets are arranged.

A first dustproof sheet seat is fixed at the lower end of the sliding sleeve, the first dustproof sheet seat is a U-shaped seat with a guide groove inside, limiting edges matched with the first dustproof sheet seat are arranged on two sides of the first dustproof sheet seat, and the limiting edges of the first dustproof sheet seat are in butt joint with the limiting edges on the inner side of the first long hole; the lower end of the second sliding sleeve is fixedly provided with a limiting seat, the position of the limiting seat matched with the second dustproof sheet is a U-shaped seat with a guide groove therein, the two sides of the limiting seat are provided with limiting edges matched with the second dustproof sheet, and the limiting edges of the limiting seat are in butt joint with the limiting edges on the inner side of the second long hole.

Because the dustproof sheet length is longer, when elevating system withdrawed, the folding condition of dustproof sheet in the lower part bending can appear, need carry out the turn of leading in corresponding sliding sleeve bottom, will choose flexible material for use to do the dustproof sheet, set up dustproof sheet one and spacing seat in the bottom of sliding sleeve one and sliding sleeve two respectively, guaranteed that the dustproof sheet turns to gently at this corresponding U-shaped seat.

The umbrella bin comprises a sleeve used for sliding guide of the sliding sleeve II and used for storing an umbrella cover bin of a folded umbrella cover, the limiting seat is fixed at the bottom of the sliding sleeve II, a dustproof inner cover shaft is arranged at the upper part of the U-shaped seat of the limiting seat, which extends out of the limiting seat towards the umbrella cover bin, a dustproof inner cover is hinged on the dustproof inner cover shaft through a torsion spring, the dustproof inner cover is matched with and seals the umbrella bin after the umbrella cover extends out, and a dustproof cover is hinged at the opening of the umbrella bin through the torsion spring;

the dustproof inner cover slides along with the limiting seat, namely moves with the sliding sleeve in a two-in-one mode. When the sliding sleeve II rises to the highest position, the umbrella cover turnover mechanism does not slide and rise (namely, when the screw cylinder rises to the highest position and does not rotate along with the screw rod III), and the dustproof inner cover is connected with the bin opening of the umbrella cover bin along with the limiting seat. The lifting motor continues to rotate, the umbrella cover turnover mechanism rises and is not pressed on the dustproof inner cover any more, and the dustproof inner cover bounces under the elasticity of the torsion spring to be blocked. The dustproof inner cup is lifted along with the limiting seat to realize storage, and the structure is ingenious. On the contrary, the dustproof cover is pushed open by the second sliding sleeve, and then covers the sleeve after the lifting mechanism is completely accommodated, and is matched with the dustproof inner cover.

The limiting seat is fixed with a pin seat which is blocked at the bottom of the sliding sleeve II, the pin seat is provided with an elastic limiting pin II, and the upper limit position of the pin seat of the sleeve is provided with a pin hole which is matched with the elastic limiting pin II; the nut is provided with a first elastic limiting pin, and the lower limit position of the nut of the second sliding sleeve is provided with a pin hole matched with the first elastic limiting pin.

The working process of the two elastic limiting pins is as follows:

the two elastic limiting pins are round-head pins and can automatically fall out of the pin holes when the force of sliding up and down is large. When the screw cylinder drives the nut to ascend, the elastic limit pin I on the nut is separated from the nut, and then the turnover mechanism ascends.

When the lifting motor descends, the lifting motor drives the third screw rod, the third screw rod rotates along with the third screw rod, the first sliding sleeve slides downwards along with the nut, the nut slides downwards to the first elastic limiting pin to be matched with the pin hole of the first elastic limiting pin (at the moment, the nut also slides downwards to the lower limit position of the first screw rod, the first screw rod cannot rotate any more), the lifting motor continues to rotate, the internal thread at the lower part of the first screw rod is separated from the limiting position of the first screw rod, meanwhile, the second elastic limiting pin is separated from the corresponding pin hole under the descending power of the.

The bottom of the sliding sleeve is connected to the upper end of a sleeve in the umbrella cabin through a flat cable, a flat cable weight for preventing the flat cable from winding is hung on the flat cable, a sliding groove matched with the flat cable movable weight is formed in the inner wall of the sleeve, and a connecting flat cable fixing lead is arranged on one wall of the sliding sleeve. The line weight prevents the winding phenomenon after the winding displacement from deforming in the lifting process, and the line weight is used for enabling the winding displacement to move regularly in the line weight sliding groove.

The invention has the beneficial effects that:

1. the structure form that the screw cylinder is sleeved with the screw rod is adopted, the basic idea is that the lifting motor drives the connecting screw rod III, a section of internal thread matched with the screw rod III is arranged in the screw cylinder, and therefore the screw rod drives the screw cylinder to ascend, and the screw cylinder drives the nut and the turnover mechanism on the nut to ascend. After the lifting motor drives the screw barrel to ascend, the screw barrel stops ascending and then rotates along with the screw rod III, the nut and the turnover mechanism on the nut are driven to ascend, and the sliding sleeve for assisting in ascending and descending is arranged in the umbrella bin to assist the screw barrel to convert from ascending to rotating, so that two sections of ascending generated by the driving of the lifting motor are formed, the structure is ingenious, and the cost is saved.

2. When the wire barrel drives the nut and the turnover mechanism on the nut to the top end of the wire barrel, the lifting motor stops rotating, the umbrella supporting motor rotates to drive the turnover nut to ascend, then the turnover nut drives the supporting rod to support an umbrella cover (fixed umbrella ribs in the umbrella cover) which is combined together, and a corresponding sliding sleeve is also arranged to guarantee that the turnover nut does not rotate and only ascends.

3. The second sliding sleeve slides up and down in the umbrella bin along with the upper positioning seat at the top end of the screw tube, the third screw rod and the screw tube are supported and limited by the upper positioning seat, and similarly, the first sliding sleeve slides in the second sliding sleeve along with the positioning seat at the upper end of the first screw rod, so that the turning nut is guided.

4. Because the dustproof sheet length is longer, when elevating system withdrawed, the folding condition of dustproof sheet in the lower part bending can appear, need carry out the turn of leading in corresponding sliding sleeve bottom, will choose flexible material for use to do the dustproof sheet, set up dustproof sheet one and spacing seat in the bottom of sliding sleeve one and sliding sleeve two respectively, guaranteed that the dustproof sheet turns to gently at this corresponding U-shaped seat.

5. The dustproof inner cover slides along with the limiting seat, namely moves with the sliding sleeve in a two-in-one mode. When the sliding sleeve II rises to the highest position, the umbrella cover turnover mechanism does not slide and rise (namely, when the screw cylinder rises to the highest position and does not rotate along with the screw rod III), and the dustproof inner cover is connected with the bin opening of the umbrella cover bin along with the limiting seat. The lifting motor continues to rotate, the umbrella cover turnover mechanism rises and is not pressed on the dustproof inner cover any more, and the dustproof inner cover bounces under the elasticity of the torsion spring to be blocked. The dustproof inner cup is lifted along with the limiting seat to realize storage, and the structure is ingenious. On the contrary, the dustproof cover is pushed open by the second sliding sleeve, and then covers the sleeve after the lifting mechanism is completely accommodated, and is matched with the dustproof inner cover.

6. The line weight prevents the winding phenomenon after the winding displacement from deforming in the lifting process, and the line weight is used for enabling the winding displacement to move regularly in the line weight sliding groove.

Drawings

FIG. 1 is a view of the assembly of the handle mechanism and canopy of the present invention;

FIG. 2 is a partial view of the canopy of the present invention;

FIG. 3 is a view showing the combination of the lifting mechanism and the turnover mechanism with the umbrella cover;

FIG. 4 is a view of the umbrella chamber and the sliding sleeve cooperating with the lifting mechanism and the turnover mechanism of the present invention;

FIG. 5 is a cross-sectional view of the turnover mechanism and the retracting sleeve of the lifting mechanism of the present invention;

FIG. 6 is an extended view of the lift mechanism of the present invention;

FIG. 7 is a view of the dust guard and corresponding seat position with the present invention extended;

FIG. 8 is a view of the dust tab and corresponding seat position when the present invention is retracted;

FIG. 9 is a view showing the relative positions of the folding umbrella cover, the limiting seat and the inner dust cover;

FIG. 10 is a view of the extended dust tab mounting position of the present invention;

FIG. 11 is a view of the spacing block of the present invention;

FIG. 12 is a view showing the position of the flat cable when the sliding sleeve of the present invention is extended;

FIG. 13 is a view showing the position of the wire harness when the sliding sleeve is retracted in accordance with the present invention;

FIG. 14 is a view of the dust cap and inner cover of the present invention after being extended integrally;

FIG. 15 is a partial view of the dust cap of FIG. 9 in accordance with the present invention;

FIG. 16 is a partial view of the dust cover of FIG. 14 in accordance with the present invention;

FIG. 17 is a view of the first resilient limiting pin and the pin opening of the present invention;

FIG. 18 is a view showing the engagement between the second elastic limiting pin and the pin opening of the present invention.

In the figure: 1-umbrella surface, 3-turnover mechanism, 4-lifting mechanism, 5-umbrella chamber,

11-fixed umbrella ribs, 12-movable umbrella ribs, 14-side ribs,

111-support one, 112-support two,

31-sliding sleeve I, 32-positioning seat, 33-supporting rod, 34-leading screw I, 35-umbrella supporting motor, 36-turnover nut,

311-one dustproof sheet, 312-one dustproof sheet, 313-flat cable, 314-line weight,

41-a second sliding sleeve, 42-a screw tube, 43-an upper positioning seat, 44-a nut, 45-a third screw rod, 46-a lower positioning seat, 47-a lifting motor, 48-a screw rod limit, 49-a limit seat,

411-a second dustproof sheet mounting plate, 412-a second dustproof sheet, 441-a first elastic limit pin, 491-a second elastic limit pin, 492-a pin seat, 493-a limit edge, 494-a guide groove, 495-a dustproof inner cover shaft, 496-a dustproof inner cover, 497-a dustproof cover,

51-sleeve, 511-wire sinker runner.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An umbrella handle mechanism of a rainproof and sunshade umbrella comprises an umbrella bin 5, wherein a lifting mechanism 4 is arranged in the umbrella bin 5, a turnover mechanism 3 is arranged on the lifting mechanism 4, and the turnover mechanism 3 is connected with an umbrella cover 1; the lifting mechanism 4 comprises a lifting motor 47, the lifting motor 47 is in driving connection with a third screw rod 45, the third screw rod 45 is coaxially sleeved with a screw cylinder 42 matched with the third screw rod 45, a nut 44 is installed outside the screw cylinder 42 in a matched mode, and the nut 44 is connected with the turnover mechanism 3;

the umbrella cover comprises a fixed umbrella rib 11, a movable umbrella rib 12 and a side rib 14, wherein the fixed umbrella rib 11, the movable umbrella rib 12 and the side rib 14 are hinged at the center of the umbrella cover, and umbrella cloth is attached to a support formed after the fixed umbrella rib 11, the movable umbrella rib 12 and the side rib 14 are unfolded. The umbrella cover 1 is unfolded and folded in a folding fan mode.

The lower end of the screw cylinder 42 is provided with an internal thread matched with the screw rod III 45, and the top of the screw rod III 45 is provided with a screw rod limit 48 matched with the internal thread at the lower end of the screw cylinder 42. The screw rod limiting 48 is an inverted cone-shaped part arranged at the top of the screw rod III 45, an inverted cone is formed at the top of the screw rod III 45 to be expanded, corresponding threads are arranged on the inverted cone-shaped part, and the inverted cone-shaped part is used for clamping internal threads at the lower part of the screw cylinder 42 when rotating to a limit position.

The structural form that the screw cylinder 42 is sleeved with the screw is adopted, the basic idea is that the lifting motor 47 is connected with the third screw 45 in a driving mode, a section of internal thread matched with the third screw 45 is arranged in the screw cylinder 42, and therefore the screw drives the screw cylinder 42 to ascend, and the screw cylinder 42 drives the nut 44 and the turnover mechanism 3 on the nut 44 to ascend. After the lifting mechanism rises to the top of the third screw rod 45, the wire barrel 42 stops rising and then rotates along with the third screw rod 45, so that the nut 44 and the turnover mechanism 3 on the nut 44 are driven to rise, and a sliding sleeve for assisting in lifting is arranged in the umbrella bin 5 to assist in converting the wire barrel from rising to rotating, so that a lifting motor 47 is driven to generate two-section rising, the structure is ingenious, and the cost is saved.

Umbrella face 1 includes fixed rib 11, movable rib 12, side bone 14, and fixed rib 11, movable rib 12, side bone 14 are articulated at umbrella face 1 center, and the umbrella cloth is connected on the support that fixed rib 11, movable rib 12, side bone 14 formed.

The turnover mechanism 3 comprises an umbrella opening motor 35, the umbrella opening motor 35 is fixed on a nut 44, the umbrella opening motor 35 is in driving connection with a first lead screw 34, the upper end of the first lead screw 34 is hinged with the outer end of a fixed umbrella rib 11 of the umbrella cover 1, a turnover nut 36 is arranged on the first lead screw 34 in a matching way, and the turnover nut 36 is hinged with the fixed umbrella rib 11 of the umbrella cover 1 through a support rod 33; a first support 111 and a second support 112 are respectively arranged on a fixed rib 11 of the umbrella cover 1, a first lead screw 34 is connected with a positioning seat 32 at the upper end of the first lead screw 34 through a bearing, the positioning seat 32 is hinged with the first support 111, and a turnover nut 36 is connected with the second support 112 through a support rod 33.

When the screw tube 42 in the previous step drives the nut 44 and the turnover mechanism 3 on the nut 44 to the top end of the screw tube 42, the lifting motor 47 stops rotating, the umbrella supporting motor 35 rotates to drive the turnover nut 36 to ascend, then the turnover nut 36 drives the support rod 33 to support the umbrella cover 1 (the fixed umbrella ribs 11 in the umbrella cover 1) which is combined together, and a corresponding sliding sleeve is also arranged to ensure that the turnover nut 36 does not rotate and only ascends.

The lifting mechanism 4 comprises a second sliding sleeve 41 and a first sliding sleeve 31, the lifting motor 47 is fixed at the bottom of the umbrella bin 5, the second sliding sleeve 41 is arranged in the umbrella bin 5 in a sliding manner, the second sliding sleeve 41 is connected to the wire barrel 42 through the upper positioning seat 43 at the top end of the wire barrel 42, the umbrella opening motor 35 is fixed at one side of the nut 44, and the nut 44 and the umbrella opening motor 35 are arranged in the second sliding sleeve 41 in a sliding manner; the first sliding sleeve 31 is arranged in the second sliding sleeve 41 in a sliding mode, the first sliding sleeve 31 is connected to the first lead screw 34 through the positioning seat 32 at the upper end of the first lead screw 34, and the turnover nut 36 is arranged in the first sliding sleeve 31 in a sliding mode; the lower end of the third screw rod 45 is connected to the umbrella bin 5 through a lower positioning seat 46.

The second sliding sleeve 41 slides up and down in the umbrella bin 5 along with the upper positioning seat 43 at the top end of the screw tube 42, the third screw rod 45 and the screw tube 42 are supported and limited by the upper positioning seat 43, and similarly, the first sliding sleeve 31 slides in the second sliding sleeve 41 along with the positioning seat 32 at the upper end of the first screw rod 34, so that the turning nut 36 is guided.

The sliding sleeve I31 is provided with a long hole I which is matched with the turnover nut 36 to slide up and down, and the sliding sleeve II 41 is provided with a long hole II which is matched with the turnover nut 36 to slide up and down; the lower portion of the turnover nut 36 is connected with a first dustproof sheet 311 for blocking the first long hole, a second dustproof sheet mounting plate 411 is mounted on the umbrella supporting motor 35, a second dustproof sheet 412 for blocking the second long hole is connected to the second dustproof sheet mounting plate 411, and limiting edges 493 which have guiding effects on the first dustproof sheet 311 and the second dustproof sheet 412 are arranged on the inner sides of the first long hole and the second long hole respectively.

When the umbrella opening action is carried out, the turnover nut 36 needs to slide in the sliding sleeve I31, the position connected with the support rod 33 slides on the long hole I, and after the umbrella cover 1 is folded and turned down, the position connected with the sliding sleeve I31 and the support rod 33 of the turnover nut 36 slides in the long hole II together. In order to prevent dust from entering from the two long holes after the umbrella is unfolded, corresponding dustproof sheets are arranged.

A first dustproof sheet seat 312 is fixed at the lower end of the first sliding sleeve 31, the first dustproof sheet seat 312 is a U-shaped seat with a guide groove 494 inside, limiting edges 493 matched with the first dustproof sheet 311 are arranged on two sides of the first dustproof sheet seat 312, and the limiting edges 493 of the first dustproof sheet seat 312 are butted with the limiting edges 493 on the inner side of the first long hole; the lower end of the second sliding sleeve 41 is fixed with a limiting seat 49, the position of the limiting seat 49 matched with the second dustproof sheet 412 is a U-shaped seat with a guide groove 494 arranged inside, limiting edges 493 matched with the second dustproof sheet 412 are arranged on two sides of the limiting seat 49, and the limiting edges 493 of the limiting seat 49 are butted with the limiting edges 493 on the inner sides of the second long holes.

Because the dustproof sheet length is longer, will choose for use flexible material to do the dustproof sheet, nevertheless when elevating system 4 withdraws, the crooked folding condition in lower part of dustproof sheet can appear, need carry out the direction turn in corresponding sliding sleeve bottom, set up dustproof sheet one seat 312 and spacing seat 49 in the bottom of sliding sleeve one 31 and sliding sleeve two 41 respectively, guaranteed that the dustproof sheet turns to gently at this corresponding U-shaped seat.

The umbrella bin 5 comprises a sleeve 51 used for sliding and guiding the sliding sleeve II 41 in the umbrella bin 5 and an umbrella cover bin used for storing the folded umbrella cover 1, the limiting seat 49 is fixed at the bottom of the sliding sleeve II 41, the upper part of the U-shaped seat of the limiting seat 49, which extends out of the limiting seat 49 towards the umbrella cover bin, is provided with a dustproof inner cover shaft 495, the dustproof inner cover shaft 195 is hinged with a dustproof inner cover 196 through a torsion spring, the dustproof inner cover 496 is matched with the umbrella bin 5 after the umbrella cover 1 extends out, and the opening position of the umbrella bin is hinged with a dustproof cover 497 through the torsion spring;

the inner dust cover 496 slides along with the limit seat 49, i.e. moves integrally with the sliding sleeve 41. When the sliding sleeve II 41 rises to the highest position, the umbrella cover 1 turnover mechanism 3 does not slide and rise (i.e. the screw tube 42 rises to the highest position and does not rotate along with the screw rod III 45), and the dustproof inner cover 496 reaches the bin opening of the umbrella cover bin along with the limiting seat 49. The lifting motor 47 continues to rotate, the umbrella cover 1 turnover mechanism 3 rises and is no longer pressed on the dustproof inner cover 496, and the dustproof inner cover 496 is bounced up and blocked under the elasticity of the torsion spring. The dustproof inner cover 496 goes up and down along with spacing seat 49 and realizes accomodating, and the structure is ingenious. On the contrary, the dust cover 497 is pushed open by the second sliding sleeve 41 and then covers the sleeve 51 after the elevator mechanism 4 is completely accommodated, and is engaged with the inner dust cover 496.

The limit seat 49 is fixed with a pin seat 492 plugged at the bottom of the sliding sleeve II 41, the pin seat 492 is provided with an elastic limit pin II 491, and a pin hole matched with the elastic limit pin II 491 is arranged at the limit position on the pin seat 492 of the sleeve 51; the nut 44 is provided with a first elastic limit pin 441, and the lower limit position of the nut 44 of the second sliding sleeve 41 is provided with a pin hole matched with the first elastic limit pin 441.

The working process of the two elastic limiting pins is as follows:

the two elastic limiting pins are round-head pins and can automatically fall out of the pin holes when the force of sliding up and down is large. When the screw cylinder 42 is driven to ascend, the elastic limit pin 441 on the nut 44 is disengaged, and then the turnover mechanism 3 ascends.

When the lifting motor 47 drives the third screw rod 45 to descend, the screw cylinder 42 rotates along with the third screw rod 45, the first sliding sleeve 31 slides down along with the nut 44, the nut 44 slides down to the elastic limit pin 441 to be matched with the pin hole of the first elastic limit pin (at the moment, the nut 44 also slides down to the lower limit position of the screw cylinder 42, the screw cylinder 42 cannot rotate any more), the lifting motor 47 continues to rotate, the internal thread at the lower part of the screw cylinder 42 is separated from the screw rod limit 48, meanwhile, the elastic limit pin 491 is separated from the corresponding pin hole under the downward power of the screw cylinder 42 driven by the third screw rod 45, and the second sliding sleeve.

The bottom of the sliding sleeve 31 is connected to the upper end of a sleeve 51 in the umbrella bin 5 through a flat cable 313, a weight 314 for preventing the flat cable 313 from winding is hung on the flat cable 313, a movable weight sliding groove 511 matched with the flat cable 313 is arranged on the inner wall of the sleeve 51, and a connecting flat cable 313 fixing lead is arranged on the wall of the sliding sleeve 31. The cable weight 314 prevents the cable 313 from being deformed and wound during the lifting process, and the cable 313 is regularly moved in the cable weight sliding slot 511 by using the cable weight 314.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. An umbrella handle mechanism of a rainproof and sunshade umbrella is characterized by comprising an umbrella bin, wherein a lifting mechanism is arranged in the umbrella bin, a turnover mechanism is arranged on the lifting mechanism, and the turnover mechanism is connected with an umbrella cover; the lifting mechanism comprises a lifting motor, the lifting motor drives a third screw rod to be connected, the third screw rod is coaxially sleeved with a third screw tube matched with the third screw rod, a nut is arranged outside the third screw tube in a matched mode, and the nut is connected with the turnover mechanism;

the turnover mechanism comprises an umbrella supporting motor, the umbrella supporting motor is fixed on a nut, the umbrella supporting motor is connected with a first lead screw in a driving mode, the upper end of the first lead screw is hinged to the outer end of an umbrella surface fixing rib, a turnover nut is arranged on the first lead screw in a matching mode, and the turnover nut is hinged to the umbrella surface fixing rib through a support rod;

the lifting mechanism comprises a second sliding sleeve and a first sliding sleeve, the lifting motor is fixed at the bottom of the umbrella bin, the second sliding sleeve is arranged in the umbrella bin in a sliding manner, the second sliding sleeve is connected to the wire barrel through an upper positioning seat at the top end of the wire barrel, the umbrella opening motor is fixed at one side of the nut, and the nut and the umbrella opening motor are arranged in the second sliding sleeve in a sliding manner;

the first sliding sleeve is arranged in the second sliding sleeve in a sliding mode, the first sliding sleeve is connected to the first screw rod through a positioning seat at the upper end of the first screw rod, and the turnover nut is arranged in the first sliding sleeve in a sliding mode; the lower end of the lead screw III is connected to the umbrella bin through a lower positioning seat;

2. The handle mechanism of a sunshade according to claim 1, wherein the umbrella surface fixing ribs are respectively provided with a first support and a second support, the first screw is connected with a positioning seat at the upper end of the first screw through a bearing, the positioning seat is hinged with the first support, and the turnover nut is connected with the second support through a support rod.

3. The handle mechanism of a rainproof sunshade according to claim 1, wherein a first dust-proof piece seat is fixed at a lower end of the sliding sleeve, the first dust-proof piece seat is a U-shaped seat with a guide groove therein, limiting edges matched with the first dust-proof piece are arranged at two sides of the first dust-proof piece seat, and the limiting edges of the first dust-proof piece seat are butted with the limiting edges at the inner side of the first long hole;

the lower end of the second sliding sleeve is fixedly provided with a limiting seat, the position of the limiting seat matched with the second dustproof sheet is a U-shaped seat with a guide groove therein, the two sides of the limiting seat are provided with limiting edges matched with the second dustproof sheet, and the limiting edges of the limiting seat are in butt joint with the limiting edges on the inner side of the second long hole.

4. The umbrella handle mechanism of the rainproof sunshade umbrella according to claim 3, wherein the umbrella bin comprises a sleeve pipe used for sliding guiding of a sliding sleeve II and used for storing an umbrella cover bin of the folded umbrella cover, the limiting seat is fixed at the bottom of the sliding sleeve II, a dustproof inner cover shaft is arranged at the upper part of a U-shaped seat of the limiting seat extending out of the limiting seat towards the umbrella cover bin, a dustproof inner cover is hinged on the dustproof inner cover shaft through a torsion spring, the dustproof inner cover is matched with and seals the umbrella bin after the umbrella cover extends out, and a dustproof cover is hinged at the opening of the umbrella bin through the torsion spring;

the limiting seat is fixed with a pin seat which is blocked at the bottom of the sliding sleeve II, the pin seat is provided with an elastic limiting pin II, and the upper limit position of the pin seat of the sleeve is provided with a pin hole which is matched with the elastic limiting pin II;

the nut is provided with a first elastic limiting pin, and the lower limit position of the nut of the second sliding sleeve is provided with a pin hole matched with the first elastic limiting pin.

5. The umbrella handle mechanism of a sunshade umbrella as claimed in claim 3, wherein a bottom of the sliding sleeve is connected to an upper end of a sleeve in the umbrella chamber through a cable, a weight for preventing the cable from winding is hung on the cable, a sliding groove for fitting the cable is provided on an inner wall of the sleeve, and a connecting cable fixing wire is provided on a wall of the sliding sleeve.

6. The handle mechanism of a rainproof sunshade according to claim 1, wherein the lower end of the screw tube is provided with internal threads matched with the lead screw, and the top of the lead screw is provided with a lead screw limit matched with the internal threads at the lower end of the screw tube.