A kind of elevating mechanism of parasols
The utility model belongs to the umbrella technical field, relates to a kind of parasols, particularly relates to a kind of elevating mechanism of parasols.
Parasols also is parasol, is mainly used in the umbrella that blocks direct irradiation of sunlight, and this parasol mainly is made of umbrella cover, skeleton and vertical rod, and its umbrella cover mainly is made with woven dacron, has ultraviolet effect.
Parasol is because the umbrella cover area is big, the column height of support umbrella cover, it is artificial that directly folding is very painstaking, at this situation, a kind of parasols appears in the market, its China Patent No. is: a kind of " parasol elevating mechanism assembly " represented technical scheme of 02215837.5, comprise that one is installed in the housing in the lower umbrella tube, level is installed following two rope-winding wheels in the housing, two-wheeled passes through gears engaged, wherein going up the rope-winding wheel axis hole is shaped on internal thread and constitutes swivel nut, its wheel shaft is the screw rod that cooperates with swivel nut, and the screw rod external part is equipped with rocking handle.The elevating mechanism of its above parasol is to reach the purpose of parasol lifting by two rope-winding wheels by wiring, and its personnel operation lifting is relatively required great effort, parasol poor stability in the process of lifting, and rope is easily around partially.
Summary of the invention
The purpose of this utility model is at existing deficiency, and the elevating mechanism of the parasols that a kind of lifting is laborsaving, stability is high is provided.
The purpose of this utility model can realize by following technical proposal: a kind of elevating mechanism of parasols, comprise the bushing pipe of being responsible for and being socketed in being responsible for, the person in charge can be on the bushing pipe axial direction, move down, it is characterized in that: be provided with screw mandrel in the described bushing pipe, the upper end mouth of pipe of bushing pipe is stretched out in the upper end of screw mandrel, be socketed with on the described screw mandrel and be fixed on screw thread stator on the bushing pipe, described bushing pipe circumferentially is fixed on the person in charge, be provided with between the described screw mandrel upper end and the person in charge and can drive the gear transmission structure that screw mandrel rotates, this drive mechanism is provided with crank, and described screw mandrel can drive above-mentioned drive mechanism and be responsible for and move up and down together when rotating.
The elevating mechanism of this parasols mainly is made up of the person in charge and bushing pipe, in being responsible for, be socketed with bushing pipe, be provided with screw mandrel in the bushing pipe, screw mandrel is provided with drive mechanism and drives the screw mandrel rotation, its operation principle is: clockwise rotate crank, crank drives screw mandrel by drive mechanism and clockwise rotates, the screw thread stator moves up on the axial direction of screw mandrel, its screw thread stator and bushing pipe are fixed, bushing pipe moves downward with respect to the person in charge, same as above, rotate counterclockwise crank, bushing pipe moves upward with respect to the person in charge.
In the elevating mechanism of above-mentioned parasols, described gear transmission structure comprises the power rail that radially is located on the person in charge and the conical gear one, the conical gear two that become the vertical configuration engagement in being responsible for, described conical gear one is fixed on the power rail, and described conical gear two is fixed on above-mentioned screw mandrel external part.Conical gear one and conical gear two are Vertical Meshing and transmission, when power rail rotates, by conical gear one, conical gear two with power transmission to screw mandrel and drive screw mandrel and rotate.
In the elevating mechanism of above-mentioned parasols, an end of described power rail is axially fixed on the person in charge by jump ring, and the other end is fixed with above-mentioned crank.Power rail is axially fixed on the person in charge, and can do on being responsible for and upwards can rotate in week.
In the elevating mechanism of above-mentioned parasols, described screw thread stator is fixed on an end of bushing pipe, is equipped with location-plate, fixation clip and bearing successively on the screw mandrel between screw thread stator and the conical gear two.Location-plate is that the screw mandrel axial restraint is responsible for, and prevents that screw mandrel from moving axially, and fixation clip and bearing are used for reducing the frictional force that screw mandrel circumferentially rotates.
In the elevating mechanism of above-mentioned parasols, the two ends of described location-plate are fixed on to be responsible on the wall.The two ends of location-plate are that the mode by clamping is fixed on and is responsible on the wall.
In the elevating mechanism of above-mentioned parasols, axially have slideway on described person in charge's wall, bushing pipe wears slideway by bolt it circumferentially is fixed on the person in charge.When bushing pipe moved axially with respect to the person in charge, bushing pipe circumferentially was fixed on it on slideway of being responsible for wall by bolt, when bushing pipe and person in charge's relative motion, and bolt also relative motion on the slideway of being responsible for.
In the elevating mechanism of above-mentioned parasols, the inner of described screw mandrel has the qualification bushing pipe to move axially the limiting plate of distance by bolting.This limiting plate is used for limiting the distance that bushing pipe relatively moves on being responsible for.
Compared with prior art, the elevating mechanism of this parasols, in bushing pipe, be provided with screw mandrel, be socketed with the screw thread stator that is fixed on the bushing pipe on the screw mandrel, bushing pipe circumferentially is fixed on the person in charge, is provided with between the screw mandrel upper end and the person in charge and can drives the gear transmission structure that screw mandrel rotates, and the utility model is finished the lifting of this parasol by the cooperation of screw mandrel and screw thread stator, its elevating mechanism is simple, this parasol rapid operation of personnel lifting, and parasol lifting stability is high.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the elevating mechanism of this parasols.
Fig. 2 is the perspective view of the elevating mechanism of this parasols.
Among the figure, 1, be responsible for; 1a, slideway; 2, bushing pipe; 3, screw mandrel; 4, screw thread stator; 5, crank; 6, power rail; 7, conical gear one; 8, conical gear two; 9, jump ring; 10, location-plate; 11, fixation clip; 12, bearing; 13, limiting plate.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As Fig. 1, shown in Figure 2, the elevating mechanism of this parasols mainly is made up of the person in charge 1 and bushing pipe 2, its person in charge 1 and bushing pipe 2 are made cylindric respectively, being responsible for 1 is socketed in outside the bushing pipe 2, its both can relative motion, in bushing pipe 2, be provided with screw mandrel 3, the upper end mouth of pipe of bushing pipe 2 is stretched out in the upper end of screw mandrel 3, the external part of its screw mandrel 3 is installed with conical gear 8, on conical gear 8, be provided with conical gear 1, conical gear 1 and conical gear 28 are the vertical configuration engagement, conical gear 1 passes its installing hole by power rail 6 and is fixed on the person in charge 1, power rail 6 is located in to be responsible on 1, and an end is axially fixed in it on person in charge 1 by the mode of jump ring 9 clampings, and the other end is fixed with and can drives the crank 5 that power rail 6 rotates.
On the person in charge 1 tube wall, be axially arranged with the slideway 1a of band opening, be installed with bolt on the bushing pipe 2 corresponding with being responsible for slideway 1a, bushing pipe 2 passes person in charge's slideway 1a by bolt it circumferentially is fixed on the person in charge 1, be fixed with screw thread stator 4 at bushing pipe 2 one ends, this screw thread stator 4 is socketed on the screw mandrel 3 and matches with screw mandrel 3 and is spirally connected, screw mandrel 3 is axially fixed in it by location-plate 10 and is responsible on 1, location-plate 10 is between screw thread stator 4 and conical gear 28, and the mode by clamping is fixed on it to be responsible on 1 wall.When screw mandrel 3 forward or reverse, bushing pipe 2 can be along axially the moving back and forth of screw mandrel 3, and also is equipped with fixation clip 11 and bearing 12 successively in order to reduce the frictional force that screw mandrel 3 rotates on the screw mandrel 3 between screw thread stator 4 and the conical gear 28.In order to limit bushing pipe 2, by bolting limiting plate 13 is arranged in the inner of screw mandrel 3 being responsible for the distance that relatively moves on 1.
The motion process of the elevating mechanism of this parasols is: when clockwise rotating crank 5, crank 5 drives conical gear 1 by power rail 6 and cooperates rotation with conical gear 28, conical gear 28 is fixed on the screw mandrel 3, conical gear 28 drives screw mandrel 3 and clockwise rotates, screw thread stator 4 moves up on the axial direction of screw mandrel 3, its screw thread stator 4 is fixing with bushing pipe 2, bushing pipe 2 moves downward with respect to being responsible for 1, same as above, when rotating counterclockwise crank 5, bushing pipe 2 moves upward with respect to being responsible for 1.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.