CN2894369Y - Ventilating umbrella - Google Patents

Abstract

The utility model relates to a ventilation umbrella, wherein the upper nest ring of the main umbrella holder is provided with two-piece stop rings and a sliding pulling nest ring positioned between the two-piece stop rings so that several pull ropes can be fixed in the pulling nest ring correspondingly. The under part of the pulling nest ring is provided with a hole groove that is applied to loading a compression spring. The compression spring is downward and pushes against the downward stop ring. This structure can save umbrella cloth and cost, enhance ventilation effect and make it convenient to furl exumbrella and subumbrella, etc. Besides, the upper part of the pulling nest ring is provided with radicalized radial slot bores that are arranged along the ring periphery and whose interior slots are bigger than exterior slots. As a result, the end of several pull ropes can be inset in the radial slot bores. The waist of several radicalized radial slot bores is provided with ring slot that can tighten a clamping ring in the ring slot to avoid pull ropes getting rid of the pulling nest ring so as to realize the simple installment of the pull rope and tight fix to the pulling nest ring.

Description

Ventilating umbrella

Technical field

The utility model is about a kind of ventilating umbrella, especially about a kind ofly enough make ventilating umbrella save the umbrella cloth area, reduce cost of manufacture, promote ventilation effect, ventilating umbrella easy to assembly.

Background technology

At present, the parachute kit that can strut and pack up (foldable umbrella) on the market, designing multiple structure aspect needing at functions such as windproof or ventilations, as: nineteen fifty-five U.S. Pat Pat.2,522,645, its nest ring (top notch) and slidably descending between the nest ring (runner notch) on being fixed, be provided with a stay cord nest ring (roper notch), and pass ring on the stay cord nest ring by many stay cords or similar concatenator (connector), and make two ends be attached at respectively corresponding main umbrella skeleton on, near the lower end, hold main umbrella skeleton respectively to prevent umbrella cover upset (turninginside out); U.S. Pat Pat.3 in 1962 for another example, 032,047, it is respectively to be provided with an air vent at lower umbrella cloth near in each umbrella cloth unit (being meant the unit that umbrella cloth constituted between two radial main umbrella skeletons) of upper end surface, form the ring-type air vent, cover on the ring-type air vent by a circular umbrella cloth again, and circular umbrella cloth only is fixed on each main umbrella skeleton, make the circular umbrella cloth on the air vent can strut into ventilation state, nest ring (top notch) and slidably descend a stay cord nest ring (roper notch) is set between nest ring (runnernotch) on being fixed again, and be attached at stay cord nest ring respectively to the bottom of corresponding main umbrella skeleton by many elastic threads (flexible cord) or similar coupling chain (chain) two ends, hold main umbrella skeleton respectively to prevent umbrella cover upset (turning insideout); U.S. Pat Pat.4 in 1989 for another example, 979,534, U.S. Pat Pat.5,368,055, and U.S. Pat Pat.5 in 1996,487,401, all be to be provided with, lower umbrella cloth, and each the umbrella cloth unit (i.e. the unit that umbrella cloth constituted between the two radial main umbrella skeletons) in the nearly upper end surface of lower umbrella cloth is respectively established an air vent and is formed the ring-type air vent, cover on the ring-type air vent by umbrella cloth eclipsed form on again, and to go up umbrella cloth be to be (to comprise on interlude or the bottom) on each main umbrella skeleton admittedly, make the last umbrella cloth on the air vent can strut into ventilation state; U.S. Pat Pat.5 in 1999 for another example, 890,506, be to be provided with upper and lower umbrella cloth, and near the upper end surface one proper width is set at lower umbrella cloth and constitutes the ring-type ventilating surface with mesh material (mesh material), cover on the ring-type ventilating surface that mesh material (mesh material) constitutes by umbrella cloth eclipsed form on again, and last umbrella cloth just is (to comprise on interlude or the bottom) on each main umbrella skeleton admittedly, make the last umbrella cloth on mesh material (mesh material) ventilating surface can strut into ventilation state, and promote draught area and drafting efficiency; U.S. Pat Pat.6 in 1999 for another example, 006,769, it is provided with, lower umbrella cloth, and last umbrella cloth is laid in the osteoplastic umbrella cover of main chute top, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, and tie up to the upper peripheral edge centre of each umbrella cloth unit (i.e. the unit that umbrella cloth constituted between the two radial main umbrella skeletons) of supporting umbrella bone and lower umbrella cloth respectively by many elastic threads (flexible rope), make umbrella when strutting fully, lower umbrella cloth can be by the elastic threads stretching that makes progress, make, relative separation between lower umbrella cloth and form a ventilation gap (ventilating space), form the ring-type air vent, and reach ventilation effect; U.S. Pat Pat.6 in 2000 for another example, 039,063, be provided with, lower umbrella cloth, and last umbrella cloth is located at the umbrella cover top that umbrella frame (top rib) forms, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, the end section of umbrella frame respectively forms one and can strut and control of turning valve (control valve) with umbrella on many again, this control valve have an oversleeve (sleeve portion) with plant thereon an elastic component (spring member) and a joint piece (joint member) with set firmly an outer umbrella frame (outer rib) on it, be arranged on the elastic component and go up umbrella cloth, lower umbrella cloth is arranged on outer umbrella frame (outerrib), make umbrella pass through outer umbrella frame (outer rib) when strutting, control valve is opened, and made, open a ring-type ventilating opening by control valve between lower umbrella cloth; U.S. Pat Pat.6 in 2000 for another example, 155,278, be provided with upper and lower umbrella cloth, should go up umbrella cloth and be arranged on the osteoplastic umbrella cover of main chute top, lower umbrella cloth is arranged on the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and forms upper and lower umbrella cloth faying surface, in addition, inner peripheral at lower umbrella cloth extends internally several extension ropes (extension stripes) for being attached on the main umbrella skeleton, make when umbrella struts, but relative separation and form a ventilating opening between upper and lower umbrella cloth; U.S. Pat Pat.6 in 2000 for another example, 167,894, be on main chute bar fixed, with movable nest interannular down nest ring in to be set below the nest ring, and some second umbrella frames shorter than main umbrella skeleton that evenly are pivoted on the middle nest ring, and the other end of second umbrella frame is attached on the outer tail end of main umbrella skeleton, the intensity of therefore promoting main umbrella skeleton when umbrella struts; Calendar year 2001 U.S. Pat Pat.6 for another example, 170,499, be provided with, lower umbrella cloth, and last umbrella cloth is laid in the osteoplastic umbrella cover of main chute top, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, and tie up to the upper peripheral edge centre of each umbrella cloth unit of supporting umbrella bone and lower umbrella cloth respectively by some elastic threads (elastic cord), make lower umbrella cloth can rely on elastic threads and upwards stretching, make, relatively separately form ventilating opening between lower umbrella cloth, and last, the inner face that umbrella cloth should be gone up by lower umbrella cloth faying surface place is provided with several elastic band (elastic loops), and elastic band can be passed a corresponding crack (slit) on the lower umbrella cloth respectively, and penetrate by corresponding main umbrella skeleton more respectively, make, lower umbrella cloth is fixed on the osteoplastic umbrella cover of main chute; Calendar year 2001 U.S. Pat Pat.6 for another example, 250,319, be provided with, lower umbrella cloth, and last umbrella cloth is laid in the osteoplastic umbrella cover of main chute top, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, and make its two ends tie up to one respectively by some ropes (ropes) to be located at and to go up slidably that ring (upper ring) is gone up and upper peripheral edge of each unit (sector) of lower umbrella cloth on the main chute bar, make when launching fully, lower umbrella cloth can rely on elastic threads and upwards stretch, and make, relatively separately form several ventilation openings between lower umbrella cloth, in addition, on fixing, between hub (upper hub) and last ring (upperring) helical spring is set, and at last ring (upper ring) and following nest interannular one lug (tab) is set, but makes helical spring will go up minimum the forcing of ring (upper ring) to lug; Calendar year 2001 U.S. Pat Pat.6 for another example, 202,662, be provided with, lower umbrella cloth, and last umbrella cloth is laid in the osteoplastic umbrella cover of main chute top, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, and make its two ends tie up to one respectively by some elastic threads (elastic ropes) to be installed in that retaining ring (retaining ring) on the main chute bar is gone up and the upper peripheral edge centre of each umbrella cloth unit of lower umbrella cloth, make lower umbrella cloth can rely on elastic threads and upwards stretching, make, relatively separately form gap (gap) between lower umbrella cloth as ventilating opening; Calendar year 2001 U.S. Pat Pat.6 for another example, 397,867, be provided with, lower umbrella cloth, and last umbrella cloth is arranged on the osteoplastic umbrella cover of main chute top, lower umbrella cloth is arranged on the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, and make its two ends tie up to one respectively by some extension ropes (extending ropes) to be arranged on and to go up slidably that ring (upper ring) is gone up and upper peripheral edge of each unit of lower umbrella cloth on the main chute bar, make umbrella when strutting fully, lower umbrella cloth can rely on elastic threads and upwards stretch, and make, relatively separately form several ventilation openings between lower umbrella cloth, and should go up ring (upper ring) and have several end face openings (top opening) and corresponding crack, extension rope one end can be inserted in the crack of end face opening and correspondence, fasten by a loam cake again and finish assembling.And for example: the Taiwan Announcement Number is respectively utility model patents such as 375890,378507,382921,395197,399424,474135,378507, and Chinese patent the 00234023.2nd, 00235970.7,99211643.0,99213873.6,98249795.4,01302360.8,00204009.3,99214356.X, 98241197.9,99203829.4,98241249.5,00425856,00399424,00395196,0375890,99215636.X, No. 99203829.4 etc.

By above-mentioned data comparison as can be known, at present at the ventilating umbrella structural design of (or claiming wind-proof umbrella), the parachute kit dealer utilizes a main umbrella skeleton (main ribs) and a supporting umbrella bone (secondary ribs both at home and abroad, or stretcher) constitutes one and can open up the umbrella frame frame of receipts, and main umbrella skeleton forms a umbrella cover (surface), be divided into several umbrella cover unit (sector) on the umbrella cover, be provided with on the umbrella cover again, lower umbrella cloth (canopy), and last umbrella cloth is arranged on umbrella cover top, lower umbrella cloth is located at the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth, utilize some elasticity or non-resilient stay cord again, make the one end tie up on the upper peripheral edge of lower umbrella cloth or the supporting umbrella bone tail end, the other end ties up on the main chute bar on the fixing or nest ring (notch or ring) that slides, and draw back lower umbrella cloth or hold the outer end of main umbrella skeleton by the stay cord pulling force, ventilate or protection effect to reach; And between above-mentioned each patent main difference point only be the structure kenel of employed nest ring or lower umbrella cloth make flowing mode or angle has different the variation; But above-mentioned windproof or ventilating umbrella with upper and lower umbrella cloth mostly focuses on ventilation or the protection effect after umbrella struts fully, the convenience when folding operation when not considering to use, now with U.S. Pat Pat.6,397,867 is extremely shown in Figure 6 for for example Fig. 1, illustrates that its shortcoming is as follows:

(1) after folding, variation because of relative position (angle) between its stay cord P1 and supporting umbrella bone P2, make the stay cord mooring points P5 place of lower umbrella cloth P3 upper peripheral edge P4 can present slack and undisciplined sagging as shown in Figure 4, make between umbrella cloth P6 and lower umbrella cloth P3 in heaps easily crowded and intertwine, if lower umbrella cloth P3 involves in the umbrella cloth P6, promptly can cause the user to be difficult to furl umbrella cloth (comprising upper and lower umbrella cloth P6, P3), also influence the action that parachute kit struts or folds.

(2) and if will avoid the upper peripheral edge P4 of lower umbrella cloth P3 sagging, then must widen the faying surface P7 between upper and lower umbrella cloth P6, P3, and the mooring points P5 position that must make stay cord P1 hitch lower umbrella cloth P4 upper peripheral edge P4 is located at the horizontal line top of pivoting point (joint) P9 between main umbrella skeleton P8 and supporting umbrella bone P2 as Fig. 1, Fig. 2, shown in Figure 3, but so preparation method can be wasted the umbrella cloth material, raise the cost, and overlapping area increases, and flowing resistance increases relatively, and ventilation effect is reduced relatively.

(3) and for example use nest ring of the prior art (notch) P10 as shown in Figure 4, and the terminal P11 of stay cord is embedded on the nest ring P10 as shown in Figure 5, then not only install inconveniently, and the stay cord end can't fix, and receives in exhibition to be shifted easily in using or to come off; And if another nest ring (notch) P12 as shown in Figure 6 in the use prior art, the terminal P11 of stay cord embeds a mouthful P13 by going up of nest ring P12 and is embedded among the nest ring P12, be buckled in above the nest ring P12 by a loam cake (cap) P14 again and embed mouthful P13 in case stay cord breaks away to cover, then increase the complexity and the cost of structure between nest ring P12 and loam cake P14 again, be unfavorable for the mass production of parachute kit.

Summary of the invention

At foregoing, the utility model purpose promptly is to provide a kind of and can makes ventilating umbrella save the umbrella cloth area, reduces cost of manufacture, promotes ventilation effect, ventilating umbrella easy to assembly.

The purpose of this utility model is achieved through the following technical solutions:

The utility model ventilating umbrella, comprise a umbrella frame frame that can strut and fold and go up umbrella cloth, lower umbrella cloth, this umbrella frame has set up the main chute bar, be installed in the last nest ring of described main chute bar upper end, can on described main chute bar, slide to strut and to fold the following nest ring of umbrella cloth, some Zhi Yiduan are hubbed on the main umbrella skeleton on the nest ring, and some supporting umbrella bones, this each supporting umbrella bone one end is articulated in down on the nest ring, the corresponding pivot joint of the other end and form a pivoting point with main umbrella skeleton, be arranged on the osteoplastic umbrella cover of main chute top and should go up umbrella cloth, lower umbrella cloth is arranged on the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, be divided into several umbrella cover unit by each main umbrella skeleton on some the osteoplastic umbrella covers of main chute, pivoting point between especially described supporting umbrella bone and main umbrella skeleton is the top that is positioned at the upper peripheral edge of lower umbrella cloth, and be provided with below the nest ring on the main chute bar two suitable distances in interval on stop ring and following stop ring, and can be at last stop ring, the stay cord nest ring that slides between following stop ring, some stay cords and a compression spring, wherein: stay cord nest ring bottom is provided with one for the opening tank that is inserted in described compression spring, this opening tank top loop periphery is laid with several radial radially slotted eyes, these several radially the waist of slotted eye be provided with the cannelure that can tighten described tight ring bundle; One end of stay cord is that correspondence is fixed on the stay cord nest ring one radially in the slotted eye, and the other end is the upper peripheral edge centre that ties up to each umbrella cloth unit of lower umbrella cloth; The compression spring is to be set on the main chute bar, and is inserted in the opening tank of stay cord nest ring bottom on it, and its lower ends downward is replaced on following stop ring.

In said structure, wherein:

Described radially slotted eye is provided with and can inserts the radially inside groove at the place, interior bottom of slotted eye by upper end open for the end of stay cord, and is provided with that the terminal block card that can make stay cord is lived and the water jacket that can't radially outward pass.

At the other end of described stay cord is to tie up in the upper peripheral edge centre of each umbrella cloth unit of lower umbrella cloth, and wherein this mooring points is positioned at the horizontal line below of the pivoting point between main umbrella skeleton and supporting umbrella bone.

Wherein this bunching ring can be a ringle or an elasticity polymer ring.

Wherein this stay cord can be elastic drag rope or non-resilient stay cord.

The utility model compared with prior art has following advantage:

(1) the utility model is after the umbrella frame frame folds, because of stay cord nest ring can upwards reset by the elastic-restoring force of compression spring, and upwards draw the upper peripheral edge of whole lower umbrella cloth simultaneously, make the stay cord mooring points place of lower umbrella cloth upper peripheral edge can be slack and undisciplined not sagging, make upper and lower umbrella cloth stretching and leveling and easyly furl apace simultaneously, effectively promote the service efficiency of ventilating umbrella.

(2) mooring points between some stay cords one end of the present utility model and lower umbrella cloth upper peripheral edge is the horizontal line below that is positioned at the pivoting point between main umbrella skeleton and supporting umbrella bone, just the upper peripheral edge of lower umbrella cloth is to be positioned at the formed horizontal below of several pivoting points, faying surface area between upper and lower umbrella cloth is reduced, therefore can save umbrella cloth, reduce cost, and overlapping area reduces, and flowing resistance reduces relatively, and ventilation effect is promoted relatively.

(3) stay cord nest ring of the present utility model is established a cannelure on the waist of several radial radial slots, and tightening in this cannelure by a bunching ring, and can restraint some stay cords simultaneously, make stay cord nest ring structure simplification, easy to assembly, and several stay cords can simple and easyly be mounted and fixed on the stay cord nest ring, help the mass production production of parachute kit.

Description of drawings

In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.

The schematic perspective view of ventilating umbrella in Fig. 1 prior art.

Ventilating umbrella looks up schematic perspective view in Fig. 2 prior art.

The floor map of ventilating umbrella in Fig. 3 prior art.

Schematic diagram when ventilating umbrella folds in Fig. 4 prior art.

The generalized section of ventilating umbrella one stay cord nest ring in Fig. 5 prior art.

The schematic perspective view of another stay cord nest ring of ventilating umbrella in Fig. 6 prior art.

Fig. 7 is the schematic perspective view of a preferred embodiment of the present utility model.

Fig. 8 is the schematic perspective view of looking up of the present utility model.

Fig. 9 is a floor map of the present utility model.

Schematic diagram when Figure 10 is of the present utility model folding.

Figure 11 is the operation chart that folds of the present utility model.

Figure 12 is the back schematic diagram that folds of the present utility model.

Figure 13 is the perspective exploded view of the utility model stay cord nest ring.

Figure 14 is the generalized section of the utility model stay cord nest ring.

The specific embodiment

Please together with reference to figure 7 to shown in Figure 10, the utility model ventilating umbrella mainly comprises the umbrella frame frame (frame) 10 that can strut and fold and reaches, following two umbrella cloths (upper, lower canopy) 20,21, this umbrella frame frame 10 mainly comprises main chute bar (shaft) 11, be installed in the last nest ring (upper notch) 12 of main chute bar 11 upper ends, can on main chute bar 11, slide and reach the following nest ring (runner notch) 13 that struts and fold the umbrella cloth purpose, some Zhi Yiduan evenly articulate the main umbrella skeleton (main rib) 14 that is arranged on the nest ring 12, and some correspondences are supported on main umbrella skeleton 14 and 13 on following nest ring has supporting umbrella bone (stretcher) 15, wherein, should go up umbrella cloth 20 and be arranged on the umbrella cover top that main umbrella skeleton 14 forms, lower umbrella cloth 21 is laid in the umbrella cover bottom of umbrella cloth 20 outer peripheral edges, and the lower periphery 201 that goes up umbrella cloth 20 covers on the upper peripheral edge 211 of lower umbrella cloth 21 and on forming, lower umbrella cloth faying surface 22; And upward be divided into several umbrella cover unit (sector) 23 by each main umbrella skeleton 14 by the umbrella cover (surface) that some main umbrella skeletons 14 form.

Wherein, suitably the upper and lower stop ring 30,31 and of distance can be at the stay cord nest ring (roper notch) 32 of 30,31 slips of upper and lower two stop rings (stopper) at interval to be provided with two on main chute bar 11 has below the nest ring 12, make some stay cords (rope) 40 1 ends respectively correspondence be fixed on the stay cord nest ring 32, and the bottom of this stay cord nest ring 32 is provided with opening tank 321 (shown in Figure 13,14), the voltage supply spring 33 that contracts is inserted in, and the lower ends downward that makes this compression spring 33 is against down on the stop ring 31, relies on elasticity to shore stay cord nest ring 32 upwards; The other end of some stay cords 40 is upper peripheral edge 211 centre that tie up to each umbrella cloth unit 23 of lower umbrella cloth 21 respectively in addition, and make this mooring points 212 be positioned the horizontal line below of the pivoting point (joint) 16 of 15 of main umbrella skeleton 14 and supporting umbrella bones, in other words, the upper peripheral edge 211 of lower umbrella cloth 21 is to be positioned at several pivoting points (joint) 16 formed horizontal belows; Therefore, when umbrella frame frame 10 during at the state that struts fully as shown in Figure 9, stay cord nest ring 32 compresses spring 33 to lower compression to bottom offset and compressing automatically because of being subjected to stay cord 40 pulling force, and the upper peripheral edge 211 of lower umbrella cloth 21 is also because of being stretched towards main chute bar 11 directions by stay cord 40 pulling force, relatively separately forming several ventilations uses opening to make the faying surface 22 of 20,21 of upper and lower umbrella cloths, and reaches ventilation effect; And when umbrella frame frame 10 during at collapse state as shown in figure 10, stay cord nest ring 32 can rely on the elastic-restoring force of compression spring 33 and upwards reset, and upwards draw the upper peripheral edge 211 of whole lower umbrella cloth 21 simultaneously, this moment the user when putting umbrella cloth in order as shown in figure 11, as long as with the stay cord nest ring 32 after rising is fixed point, promptly can be simultaneously as shown in figure 11 with upper and lower umbrella cloth 20,21 stretching and leveling, and easyly apace upper and lower umbrella cloth 20,21 is furled as shown in figure 12.

Again with reference to shown in Figure 13,14, the bottom of stay cord nest ring 32 of the present utility model is provided with an opening tank 321, the voltage supply spring 33 that contracts is inserted in, and its top evenly is laid with several radial radially slotted eyes 322, radially inside groove 323 width of slotted eye 322 are bigger for this, can insert 325 places, interior bottom of radial radially slotted eye 322 by upper end open for the end 41 of stay cord 40, and water jacket 324 width are less, make end 41 block cards of stay cord 40 live and can't pass outwards through; In addition, the waist of several radial radial slots 322 is provided with a cannelure 326, can tighten in this cannelure 326 by a bunching ring 34, and this cannelure 325 is to be positioned at radially 325 tops, bottom of slotted eye 322, make the bunching ring 34 of tightening in cannelure 325 oppress on the some stay cords 40 relatively, form a circumferential band effect, therefore can prevent that stay cord 40 upwards breaks away from radial slot 322; Moreover this bunching ring 34 can be a ringle as shown in figure 13 or an elasticity polymer ring (scheming not shown); Therefore, some stay cords 40 can simple and easyly be mounted and fixed on the stay cord nest ring 32, reach the effect of easy to assembly and strong fix.

Claims (5)

1. ventilating umbrella, comprise a umbrella frame frame that can strut and fold and go up umbrella cloth, lower umbrella cloth, this umbrella frame has set up the main chute bar, be installed in the last nest ring of described main chute bar upper end, can on described main chute bar, slide to strut and to fold the following nest ring of umbrella cloth, some Zhi Yiduan are hubbed on the main umbrella skeleton on the nest ring, and some supporting umbrella bones, this each supporting umbrella bone one end is articulated in down on the nest ring, the corresponding pivot joint of the other end and form a pivoting point with main umbrella skeleton, be arranged on the osteoplastic umbrella cover of main chute top and should go up umbrella cloth, lower umbrella cloth is arranged on the umbrella cover bottom of umbrella cloth outer peripheral edges, and the lower periphery of last umbrella cloth covers on the upper peripheral edge of lower umbrella cloth and on forming, the lower umbrella cloth faying surface, be divided into several umbrella cover unit by each main umbrella skeleton on some the osteoplastic umbrella covers of main chute, it is characterized in that:

Pivoting point between described supporting umbrella bone and main umbrella skeleton is the top that is positioned at the upper peripheral edge of lower umbrella cloth, and be provided with below the nest ring on the main chute bar two suitable distances in interval on stop ring and following stop ring, and can be at last stop ring, the stay cord nest ring that slide between stop ring down, some stay cords and a compression spring, wherein: stay cord nest ring bottom is provided with one for the opening tank that is inserted in described compression spring, this opening tank top loop periphery is laid with several radial radially slotted eyes, these several radially the waist of slotted eye be provided with the cannelure that can tighten described tight ring bundle; One end of stay cord is that correspondence is fixed on the stay cord nest ring one radially in the slotted eye, and the other end is the upper peripheral edge centre that ties up to each umbrella cloth unit of lower umbrella cloth; The compression spring is to be set on the main chute bar, and is inserted in the opening tank of stay cord nest ring bottom on it, and its lower ends downward is replaced on following stop ring.

2. ventilating umbrella as claimed in claim 1, it is characterized in that: described radially slotted eye is provided with and can inserts the radially inside groove at the place, interior bottom of slotted eye by upper end open for the end of stay cord, and is provided with that the terminal block card that can make stay cord is lived and the water jacket that can't radially outward pass.

3. ventilating umbrella as claimed in claim 1 is characterized in that: the other end of described stay cord is the upper peripheral edge centre that ties up to each umbrella cloth unit of lower umbrella cloth, and wherein this mooring points is positioned at the horizontal line below of the pivoting point between main umbrella skeleton and supporting umbrella bone.

4. ventilating umbrella as claimed in claim 1 is characterized in that: wherein this bunching ring can be a ringle or an elasticity polymer ring.

5. ventilating umbrella as claimed in claim 1 is characterized in that: wherein this stay cord can be elastic drag rope or non-resilient stay cord.

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