A kind of inflation umbrella
Technical field
The invention belongs to parachute kit field, and in particular to a kind of inflation umbrella.
Background technology
Document number is that CN2386679Y Chinese patent discloses a kind of inflatable, pumping gasbag frame umbrella, and its is main
Purpose is that solve:When umbrella cover is wound after inflatable umbrella use, a small amount of air of residual causes winding difficulty is increased to ask in gasbag frame
Topic.In the program, the air storage bag lower end of its lower end connects intake valve, air bleeding valve, is set on compound air-control head by bouncing plate, rubber
The relief valve of the compositions such as piece, lid, valve inside;Upon inflation, the gas outlet on valve inside and it is nested with the rubber outside gas outlet
Sleeve pipe forms a check valve, coordinates the intake valve of air storage bag lower end, and when pulling down air storage bag, gas storage intraluminal pressure reduces,
Intake valve is opened(Exhaust valve closure), air enters air storage bag, and when pushing up air storage bag, air is discharged into compound by gas outlet
In air-control head;After inflatable umbrella use, air bleeding valve is opened(Intake valve is closed), push up air storage bag, the air in air storage bag from
Air bleeding valve is discharged, but when pulling down air storage bag, gas outlet on valve inside and the gum sleeve structure being nested with outside gas outlet
Into check valve and can not be from being turned on to air storage bag direction in compound air-control head, i.e.,:Pressure relief device in compound air-control head is in gas
When the intraskeletal pressure of capsule does not transfinite and the function of exhaust can not be realized.
Those skilled in the art are required to two conducting sides it is to be understood that when needing to realize multiple inflation or pumping
It can be realized to opposite check valve, the scheme in above-mentioned patent document simultaneously can not realize its technical problem to be solved,
Those skilled in the art can not also realize its scheme according to the record of its specification.
The content of the invention
The technical problems to be solved by the invention are:Inflation is facilitated to put in view of the deficienciess of the prior art, offer is a kind of
The inflatable umbrella of gas.
To realize the purpose of the present invention, it is achieved using following technical scheme:A kind of inflation umbrella, including umbrella handle portion,
The slip pushing cylinder being slidably connected at below umbrella handle portion, the swivel on umbrella handle portion top is rotatably connected on, is fixedly connected on rotation
The gas control unit of upper end of joint, the umbrella stand fixture of the gas control unit upper end is fixedly connected on, is arranged on the umbrella stand
The inflated supporting pipe of fixture periphery, and it is connected to the umbrella cover of the inflated supporting pipe upper end.Connected on the slip pushing cylinder
There is piston;The piston is in cylinder;The centre position of the piston lower surface forms threaded portion;In the side wall of the piston
Portion's fixed cover is provided with least two rubber ring b;The lower sidewall of the piston forms the inclined-plane of back taper;On the outside of the inclined-plane
It is arranged with elastic tape a.
Umbrella handle portion lower end outside is provided with collar;The collar includes being set in the cylindrical portion on the outside of umbrella handle portion, with
And it is molded over the spacing collar of cylindrical portion lower end inner circumferential;The spacing collar is fixedly connected with umbrella handle portion outer wall;It is described slip pushing cylinder be in
Cylinder;Upper end forms nut portions in the slip pushing cylinder;The nut portions are connected with threaded portion;The slip pushing cylinder
Top, which is located at below nut portions along slip pushing cylinder diametric(al), forms slot;Limited block is slidably connected in the slot;Institute
State the internal diameter that spacing block length is more than spacing collar;The periphery for sliding pushing cylinder upper end forms driving circle.In the umbrella handle portion
The centre position of end face forms fixing pipe;The centre position of the fixing pipe upper surface forms the check valve installation of truncated cone-shaped
Seat;The unidirectional valve housing lower surface diameter is more than fixed pipe diameter;Unidirectional valve housing lower surface forms centring ring;It is described
Two symmetrically arranged check valves are installed with unidirectional valve housing;The check valve includes umbrella handle portion and turned on from inside to outside
Check valve a, and the check valve b opposite with check valve a conducting direction;Umbrella handle portion upper surface is located at the outer of fixing pipe
The symmetric position in week forms positioning convex a and positioning convex b.Positioned at the positioning convex a and positioning under the swivel
Raised b position forms positioning port a and positioning port b respectively;The swivel is made up of two identical halfbodies;Described two
Individual halfbody is bolted to connection;The swivel inner wall lower forms spring positioning shoulder;The fixing pipe outer sheath
Provided with spring;The spring one end offsets with centring ring, and one end offsets with spring positioning shoulder;The swivel upper inside wall into
Type has mating groove.
The gas control unit lower end forms the outer flange collar being fixedly connected with the mating groove;The outer flange collar is with coordinating
Groove is interference fitted;Passage a and passage b are formed on the gas control unit;The passage a upper ends and umbrella stand fixture
Connection, lower end offset with check valve sealing;The passage b upper ends extend to the side wall of gas control unit, lower end and check valve
Offset.The umbrella stand fixture side wall circumferentially uniformly forms multiple umbrella stand joints;Each umbrella stand joint intermediary form
There is gas passage;The inflated supporting pipe is connected to the corresponding umbrella stand joint outer end;It is connected with the outside of the inflated supporting pipe
Inflated supporting pipe to be fixedly connected on to the umbrella stand fixed cover on umbrella stand joint;The umbrella stand is fixed and is set in outside umbrella stand joint
Side, and be connected with umbrella stand joint screw thread.
Preferably:The inflated supporting pipe is formed by two panels plastic sheeting thermal welding, in being in inflated supporting pipe
Empty air bag, inflated supporting pipe both sides and one end end are welded edge, and inflated supporting pipe other end end is and umbrella stand fixture
The openend of connection;The inflated supporting pipe side also forms a magnetic stripe accommodating chamber, be provided with magnetic stripe accommodating chamber to
The first soft magnetic stripe and the second soft magnetic stripe of folding assisted umbrella cover.
Preferably:The inflated supporting tube opening end inwall is adhesively fixed with umbrella stand joint outer wall by glue.
Preferably:In the slip pushing cylinder storage chamber is formed below slot;Under the slip pushing cylinder
End releasable connection has fixed seat;The pushing cylinder lower end of sliding forms the mounting seat coordinated with fixed seat;The mounting seat inwall
Form internal thread;The fixed seat includes forming the rotating part being threadedly coupled with mounting seat, and is molded under rotating part
The base at end.
Present invention also offers a kind of inflation umbrella, including umbrella handle portion, with the sliding connection of umbrella handle portion inwall
Pushing cylinder is slided, is rotatably connected on the umbrella cover connector on umbrella handle portion top, and be connected on umbrella cover connector and be connected with umbrella cover
The hollow umbrella cover or multiple inflated supporting pipes that part is connected;It is each when what is connected on umbrella cover connector is inflated supporting pipe
Umbrella cover is connected with inflated supporting pipe.Piston is threaded with the slip pushing cylinder;The lower sidewall of the piston forms
The inclined-plane of back taper;The inclined-plane outer sheath is provided with elastic tape;The periphery for sliding pushing cylinder upper end forms driving circle.It is described
Umbrella handle portion upper end is installed with two symmetrically arranged check valves;The check valve includes the list that umbrella handle portion turns on from inside to outside
To valve a, and the check valve b opposite with check valve a conducting direction.Upper end is formed on the umbrella cover connector to connect with umbrella stand
Head connection, the blow vent a that lower end offsets with check valve sealing;Be connected between the umbrella handle portion and umbrella cover connector to
The spring for making check valve be pushed against on the blow vent.
Compared with prior art, the beneficial effects of the invention are as follows:
When user wants to strut umbrella, gas control unit and swivel are pinched with the finger of a hand, use is another
Hand holds umbrella handle portion, pulls down, and now spring is compressed, and positioning convex a departs from positioning port b, positioning convex b and departs from positioning port
A, umbrella handle portion opposing gas control unit is rotated into a low-angle, continues rotating parachute shank, until positioning convex a is caught in positioning port
A, positioning convex b are caught in positioning port b, are now check valve a corresponding to passage a, are check valve b corresponding to passage b.Connect
, a hand holds umbrella handle portion, and another hand holds slip pushing cylinder, and will slide pushing cylinder and do reciprocating motion back and forth vertically,
Drive be threaded in slide pushing cylinder on piston slidably reciprocated in umbrella handle portion, when slide pushing cylinder pull down when, gas from
The external world into umbrella handle portion, enters in inflated supporting pipe, directly by check valve b and passage b from check valve a and passage a
When being reached the limit values to the inside air bag gas of inflated supporting pipe, spring can be compressed, and check valve a is departed from passage a;Continue
Inflation, unnecessary gas are spilt in the gap between check valve a and passage a, can't rupture air bag.Then,
Pushing cylinder will be slided and be pulled to correct position downwards, turn clockwise and slide pushing cylinder, pushing cylinder opposing pistons are now slided and move up, drive
Moving-coil drives rubber ring a to be moved up along bevel direction, and now rubber ring a is extruded jointly on inclined-plane and umbrella handle portion internal face
Under effect, diameter becomes big, and is interference fitted with umbrella handle portion inwall, secures and slides pushing cylinder and the relative position in umbrella handle portion.
When user wants to close one's umbrella, gas control unit and swivel are pinched with the finger of a hand, with another hand
Umbrella handle portion is held, is pulled down, most of gas in inflated supporting pipe is discharged in this process;Now spring is compressed,
Positioning convex a departs from positioning port a, positioning convex b and departs from positioning port b, and umbrella handle portion opposing gas control unit is rotated into a small angle
Degree, continue rotating parachute shank, until positioning convex a is caught in positioning port b, positioning convex b is caught in positioning port a, now a pairs of passage
That answer is check valve b, is check valve a corresponding to passage b.Then, rotate counterclockwise slides pushing cylinder, and it is relative now to slide pushing cylinder
Piston moves down, and the distance between driving circle and inclined-plane become big, and rubber ring a moves down along bevel direction, and diameter reduces,
And depart from umbrella handle portion inwall, slip pushing cylinder is slided with respect to umbrella handle portion.Then, a hand holds umbrella handle portion, another hand
Hold slip pushing cylinder, and pushing cylinder will be slided and do reciprocating motion back and forth vertically, drive the work for being threaded in and sliding on pushing cylinder
Plug slidably reciprocates in umbrella handle portion, and gas enters in umbrella handle portion by check valve b and passage a, then from check valve a and passage
B is discharged, until the inside air bag gas of inflated supporting pipe is taken out to the greatest extent completely;Pushing cylinder will be slided and be moved upward to extreme position, just
Complete the work that closes one's umbrella.Storage chamber in the slip pushing cylinder can store wisp, such as polybag, terminate in inflatable umbrella use
Afterwards, polybag can be taken out out of storage chamber, for filling the inflatable umbrella with rain, sliding pushing cylinder can use as storage tube.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is umbrella handle portion of the present invention, swivel, gas control unit, umbrella stand fixture and the sectional view for sliding pushing cylinder.
Fig. 3 is Fig. 2 A portions enlarged drawing.
Fig. 4 is Fig. 2 B portions enlarged drawing.
Fig. 5 is umbrella handle portion, slides pushing cylinder, and the structural representation of fixed seat.
Fig. 6 is the exploded view of pusher and the part being connected with pusher.
Fig. 7 is the sectional view of pusher and the part being connected with pusher.
Fig. 8 is the structural representation in umbrella handle portion.
Fig. 9 is Fig. 8 C portions schematic enlarged-scale view.
Figure 10 is umbrella handle portion, swivel, gas control unit, and the exploded view of umbrella stand fixture.
Figure 11 is umbrella handle portion, swivel, and the sectional view of gas control unit.
Figure 12 is Figure 11 D portions enlarged drawing.
Figure 13 is the structural representation in Figure 12 umbrella handles portion commutation process.
Figure 14 is the structural representation after the completion of the commutation of Figure 12 umbrella handles portion.
Figure 15 is the structural representation of gas control unit.
Figure 16 is the sectional view of gas control unit.
Figure 17, Figure 18 are the structural representations of a halfbody of swivel.
Figure 19 is the structural representation of umbrella stand fixture.
Figure 20 is the sectional view of inflated supporting pipe.
Figure 21 is Figure 20 E portions enlarged drawing.
Figure 22 is the inflated supporting tubular construction schematic diagram of the embodiment of the present invention 3.
Figure 23, Figure 24 are the inflated supporting tubular construction schematic diagrames of the embodiment of the present invention 4.
1st, umbrella handle portion;111st, positioning convex a;112nd, positioning convex b;12nd, fixing pipe;13rd, unidirectional valve housing;141st, it is single
To valve a;142nd, check valve b;15th, collar;2nd, pushing cylinder is slided;21st, nut portions;22nd, slot;23rd, mounting seat;24th, storage chamber;
25th, limited block;26th, driving circle;3rd, swivel;311st, positioning port a;312nd, positioning port b;33rd, spring positioning shoulder;34th, coordinate
Groove;35th, spring;4th, gas control unit;41st, passage a;42nd, passage b;43rd, outer flange collar;5th, umbrella stand fixture;51st, umbrella stand
Joint;52nd, gas passage;53rd, umbrella stand fixed cover;5a, lower fixture;5b, upper fixing element;6th, inflated supporting pipe;60th, air bag;
61st, the first soft magnetic stripe;62nd, the second soft magnetic stripe;63rd, welded edge;6a, first support bar;6b, second support bar;6c, the 3rd support
Bar;7th, umbrella cover;71st, upper film;72nd, lower film;721st, connector;73rd, radial support pipe;74th, circumferential support tube;7a, radial direction welding
Line;7b, circumferential weld bond;8th, fixed seat;9th, piston;91st, rubber ring a;92nd, inclined-plane;93rd, rubber ring b;94th, threaded portion.
Embodiment
Embodiment 1
According to Fig. 1 to Figure 21, the present embodiment is a kind of inflation umbrella, including umbrella handle portion 1, is slidably connected at umbrella handle portion
The slip pushing cylinder 2 of lower section, the swivel 3 on umbrella handle portion top is rotatably connected on, is fixedly connected on the gas of swivel upper end
Control unit 4, the umbrella stand fixture 5 of the gas control unit upper end is fixedly connected on, is arranged on the umbrella stand fixture periphery
Inflated supporting pipe 6, and it is connected to the umbrella cover 7 of the inflated supporting pipe upper end.Piston 9 is connected with the slip pushing cylinder;Institute
Piston is stated in cylinder;The centre position of the piston lower surface forms threaded portion 94;The side wall upper part of the piston is fixed
It is arranged with least two rubber ring b93;The lower sidewall of the piston forms the inclined-plane 92 of back taper;The inclined-plane outer sheath
Provided with elastic tape a91.
Umbrella handle portion lower end outside is provided with collar 15;The collar includes being set in the cylindrical portion on the outside of umbrella handle portion,
And it is molded over the spacing collar of cylindrical portion lower end inner circumferential;The spacing collar is fixedly connected with umbrella handle portion outer wall;The slip pushing cylinder
In cylinder;Upper end forms nut portions 21 in the slip pushing cylinder;The nut portions are connected with threaded portion;The slip
Pushing cylinder top, which is located at below nut portions along slip pushing cylinder diametric(al), forms slot 22;Be slidably connected limited location in the slot
Block 25;The spacing block length is more than the internal diameter of spacing collar;The periphery for sliding pushing cylinder upper end forms driving circle 26.It is described
Sliding pushing cylinder can move down in the presence of external force is not applied, until limited block and spacing collar upper-end contact, under sliding pushing cylinder no longer
Move, so limited block can make slip pushing cylinder not depart from umbrella handle portion with spacing collar.The centre position shaping of umbrella handle portion upper surface
There is fixing pipe 12;The centre position of the fixing pipe upper surface forms the unidirectional valve housing 13 of truncated cone-shaped;The check valve
Mounting seat lower surface diameter is more than fixed pipe diameter;Unidirectional valve housing lower surface forms centring ring;The unidirectional valve housing
On be installed with two symmetrically arranged check valves;The check valve includes the check valve that umbrella handle portion turns on from inside to outside
A141, and the check valve b142 opposite with check valve a conducting direction;Umbrella handle portion upper surface is located at the periphery of fixing pipe
Symmetric position form positioning convex a111 and positioning convex b112.
Positioning port a311 is formed respectively positioned at the positioning convex a and positioning convex b position under the swivel
With positioning port b312;The swivel is made up of two identical halfbodies;Described two halfbodies are bolted to connection;Institute
State swivel inner wall lower and form spring positioning shoulder 33;The fixing pipe outer sheath is provided with spring 35;The spring one end
Offseted with centring ring, one end offsets with spring positioning shoulder;The swivel upper inside wall forms mating groove 34.The spring
A is constantly in compressive state, and check valve can be made to be offseted with gas control unit, and umbrella handle portion offsets with swivel.The gas
Body control unit lower end forms the outer flange collar 43 being fixedly connected with the mating groove;The outer flange collar is interference fitted with mating groove;
Passage a41 and passage b42 are formed on the gas control unit;The passage a upper ends connect with umbrella stand fixture, under
End offsets with check valve sealing;The passage b upper ends extend to the side wall of gas control unit, and lower end offsets with check valve.Institute
State umbrella stand fixture side wall and circumferentially uniformly form multiple umbrella stand joints 51;Each umbrella stand joint intermediary form has gas
Passage 52;The inflated supporting pipe is connected to the corresponding umbrella stand joint outer end;Be connected with the outside of the inflated supporting pipe to
The umbrella stand fixed cover 53 inflated supporting pipe being fixedly connected on umbrella stand joint;The umbrella stand is fixed and is set in outside umbrella stand joint
Side, and be connected with umbrella stand joint screw thread.
The inflated supporting pipe is formed by two panels plastic sheeting thermal welding, is hollow air bag 60 in inflated supporting pipe, is filled
Gas support tube both sides and one end end are welded edge 63, and inflated supporting pipe other end end is the opening being connected with umbrella stand fixture
End.The inflated supporting pipe side also forms a magnetic stripe accommodating chamber, is provided with magnetic stripe accommodating chamber to folding assisted umbrella
First soft magnetic stripe 61 and the second soft magnetic stripe 62 in face.When umbrella is packed up, due to the magnetic phase of the first soft magnetic stripe and the second soft magnetic stripe
Inhale, be easy to the folding storage of umbrella cover.The inflated supporting tube opening end inwall is adhesively fixed with umbrella stand joint outer wall by glue.
In the slip pushing cylinder storage chamber 24 is formed below slot;The slip pushing cylinder lower end releasable connection has fixed seat 8;
The pushing cylinder lower end of sliding forms the mounting seat 23 coordinated with fixed seat;The mounting seat inwall forms internal thread;It is described
Fixed seat includes forming the rotating part being threadedly coupled with mounting seat, and is molded over the base of rotating part lower end.
When user wants to strut umbrella, gas control unit and swivel are pinched with the finger of a hand, use is another
Hand holds umbrella handle portion, pulls down, and now spring is compressed, and positioning convex a departs from positioning port b, positioning convex b and departs from positioning port
A, umbrella handle portion opposing gas control unit is rotated into a low-angle, continues rotating parachute shank, until positioning convex a is caught in positioning port
A, positioning convex b are caught in positioning port b, are now check valve a corresponding to passage a, are check valve b corresponding to passage b.Connect
, a hand holds umbrella handle portion, and another hand holds slip pushing cylinder, and will slide pushing cylinder and do reciprocating motion back and forth vertically,
Drive be threaded in slide pushing cylinder on piston slidably reciprocated in umbrella handle portion, when slide pushing cylinder pull down when, gas from
The external world into umbrella handle portion, enters in inflated supporting pipe, directly by check valve b and passage b from check valve a and passage a
When being reached the limit values to the inside air bag gas of inflated supporting pipe, spring can be compressed, and check valve a is departed from passage a;Continue
Inflation, unnecessary gas are spilt in the gap between check valve a and passage a, can't rupture air bag.Then,
Pushing cylinder will be slided and be pulled to correct position downwards, turn clockwise and slide pushing cylinder, pushing cylinder opposing pistons are now slided and move up, drive
Moving-coil drives rubber ring a to be moved up along bevel direction, and now rubber ring a is extruded jointly on inclined-plane and umbrella handle portion internal face
Under effect, diameter becomes big, and is interference fitted with umbrella handle portion inwall, secures and slides pushing cylinder and the relative position in umbrella handle portion.
When user wants to close one's umbrella, gas control unit and swivel are pinched with the finger of a hand, with another hand
Umbrella handle portion is held, is pulled down, most of gas in inflated supporting pipe is discharged in this process;Now spring is compressed,
Positioning convex a departs from positioning port a, positioning convex b and departs from positioning port b, and umbrella handle portion opposing gas control unit is rotated into a small angle
Degree, continue rotating parachute shank, until positioning convex a is caught in positioning port b, positioning convex b is caught in positioning port a, now a pairs of passage
That answer is check valve b, is check valve a corresponding to passage b.Then, rotate counterclockwise slides pushing cylinder, and it is relative now to slide pushing cylinder
Piston moves down, and the distance between driving circle and inclined-plane become big, and rubber ring a moves down along bevel direction, and diameter reduces,
And depart from umbrella handle portion inwall, slip pushing cylinder is slided with respect to umbrella handle portion.Then, a hand holds umbrella handle portion, another hand
Hold slip pushing cylinder, and pushing cylinder will be slided and do reciprocating motion back and forth vertically, drive the work for being threaded in and sliding on pushing cylinder
Plug slidably reciprocates in umbrella handle portion, and gas enters in umbrella handle portion by check valve b and passage a, then from check valve a and passage
B is discharged, until the inside air bag gas of inflated supporting pipe is taken out to the greatest extent completely;Pushing cylinder will be slided and be moved upward to extreme position, just
Complete the work that closes one's umbrella.Storage chamber in the slip pushing cylinder can store wisp, such as polybag, terminate in inflatable umbrella use
Afterwards, polybag can be taken out out of storage chamber, for filling the inflatable umbrella with rain, sliding pushing cylinder can use as storage tube.
Embodiment 2
According to Fig. 1 to Figure 21, the present embodiment is a kind of inflation umbrella, it is characterised in that:It is and described including umbrella handle portion
The slip pushing cylinder of umbrella handle portion inwall sliding connection, is rotatably connected on the umbrella cover connector on umbrella handle portion top, and be connected to
The hollow umbrella cover or multiple inflated supporting pipes being connected on umbrella cover connector and with umbrella cover connector;Connect when on umbrella cover connector
When what is connect is inflated supporting pipe, umbrella cover is connected with each inflated supporting pipe.
Piston is threaded with the slip pushing cylinder;The lower sidewall of the piston forms the inclined-plane of back taper;Institute
State inclined-plane outer sheath and be provided with elastic tape;The periphery for sliding pushing cylinder upper end forms driving circle.
Umbrella handle portion upper end is installed with two symmetrically arranged check valves;The check valve includes in umbrella handle portion
The check valve a outwards turned on, and the check valve b opposite with check valve a conducting direction.
Upper end and umbrella stand fittings are formed on the umbrella cover connector, lower end offsets logical with check valve sealing
Gas port a;The spring for making check valve be pushed against on the blow vent is connected between the umbrella handle portion and umbrella cover connector.
Embodiment 3
According to Figure 22, the difference of the present embodiment and embodiment 1 is that the bottom of inflated supporting pipe 6 is also connected with from outside to inside
There are first support bar 6a, second support bar 6b, the 3rd support bar 6c;Described first support bar 6a, second support bar 6b, the 3rd
It is hollow air bag in support bar 6c;3rd support bar the inner 6c closings, the other end and the inflated supporting pipe UNICOM;Institute
The outer end UNICOM of first support bar 6a one end and the inflated supporting pipe is stated, the other end in the middle part of the second support bar 6b with joining
It is logical;Described second support bar 6b one end and inflated supporting pipe UNICOM, the other end is with the 3rd support bar 6c close to blind end
Position UNICOM;The structure is after airbag aeration, the first support bar 6a of bottom, second support bar 6b, the 3rd support bar 6c energy
It is enough that inflated supporting pipe 6 is played a supporting role, strengthen inflated supporting pipe(Especially inflated supporting pipe is close to outer end portion)It is counter-bending
Ability, improve umbrella cover bulk strength, optimization umbrella cover wind resistance, the ability of rain.
Embodiment 4
According to Figure 23, Figure 24, the present embodiment and the difference of embodiment 1 are, the umbrella stand fixture 5 includes fixing
Lower the fixture 5a and upper fixing element 5b of socket;The umbrella cover 7 is formed by plastic sheeting of the two panels in periphery thermal welding;Two panels institute
It is upper film 71 and lower film 72 to state plastic sheeting, offers a connector 721 among the lower film, outside the connector of the lower film
It is fixedly clamped in week and is connected between upper fixing element and lower fixture, and is bonded admittedly by glue between upper fixing element and lower fixture
Fixed or threaded connection is fixed.
The umbrella cover radially forms radial support pipe 73, and each radial support pipe is in umbrella cover intermediate connection;The umbrella
Circumferential support tube 74 is formed on face between two neighboring radial support pipe;Each radial support pipe both sides are two
The radial direction weld bond 7a be arrangeding in parallel, each circumferential support tube both sides are two circumferential weld bond 7b being placed equidistant, and
One end of circumferential weld bond connects with a radial direction weld bond, left between the other end and another radial direction weld bond connect it is adjacent
The blow vent of two circumferential support tubes, and the two neighboring vent locations between each two adjacent radial support tube are mutual
Stagger.The radial support pipe forms the skeleton of umbrella cover, circumferential support tube and the supporting role for playing auxiliary so that umbrella cover only needs
Less aeration quantity is wanted to can reach enough support strengths.