CN2128275Y

CN2128275Y - Extension shelter

Info

Publication number: CN2128275Y
Application number: CN 91205630
Authority: CN
Inventors: 林贞群
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-11
Filing date: 1991-04-11
Publication date: 1993-03-17
Anticipated expiration: 2001-04-11

Abstract

The utility model discloses an extension shelter which can fold and spread by hand power, and the extension shelter is suitable for business stall or is installed outside the building. The frame of the extension shelter adopts a zygomorphic connecting rod mechanism with six rods. One end of a shelter cloth is fixed on the front cross bar of the connecting rod mechanism, while the other end is rolled on the reel of the upper part of the fixing rod of the connecting rod mechanism. The reel is operated by the human hand and driven by a gear (worm wheel). The entire frame can regulate the pitch angle. Each rod of the frame adopts the hollow heterotype cross-section aluminium alloy tubular product or hollow steel whose surface is coated with an anti-rust layer. The weight is light, and the stiffness is good.

Description

Extension shelter

The utility model is the plane ceiling that is used for sunshade, keeps off the rain, and especially it has structure extensible, that draw in, is suitable for doing commercial stall mat shelter or the outer screening canopy of building window.

The fixed bamboo frame structure of the existing many employings of stand retaining mat shelter, after installing, the size of canopy and angle all can not change; The outer screening canopy of building window is then many, and the side is fan-shaped with the screening booth structure on the similar rickshaw, and it can be opened or be folding, but as hiding canopy or stall's mat shelter usefulness outside window, shortcomings such as then influential daylighting and influence ventilations, and the while takes up space also bigger.

The purpose of this utility model is based on the flat-top mat shelter, creates a kind of mat shelter that can stretch easily and draw in.

Task of the present utility model is achieved in that the plane ceiling that is made of frame and canopy cloth, the linkage (referring to Fig. 3) that the frame canopy is made up of symmetrical 6 rod members, cross bar ［ 1 ］ is fixed with an end of canopy cloth, it links to each other with connecting rod ［ 2 ］, ［ 2 ' ］ respectively with hinge A, F, two connecting rods link to each other with rocking arm ［ 3 ］, ［ 3 ' ］ with hinge B, E respectively again, and two rocking arms are connected with fixed bar ［ 4 ］ with hinge C, D respectively again.Two connecting rods are isometric, and two rocking arms are also isometric, and like this, cross bar will keep translation when the rolling of canopy cloth.Canopy cloth ［ 7 ］ is except that an end is fixed on the cross bar ［ 1 ］, and its other end twists in the reel ［ 6 ］ of fixed bar ［ 4 ］ top and goes up (referring to Fig. 1), and end and reel are fixed.Reel drives by tooth (snail) roller box ［ 5 ］, and the driving shaft ［ 8 ］ (referring to Fig. 2) of tooth (snail) roller box is hooked with one of rocking bar ［ 9 ］ by the operator, drives by hand.Like this, in shaking the rocking bar process, reel is continuous rolling canopy cloth just, constantly draws whole frame in and drive cross bar ［ 1 ］, the state shown in realizing from Fig. 3 to Figure 4 and 5.If shake rocking bar ［ 9 ］ in the other direction, then reel will constantly be decontroled canopy cloth, and at this moment frame stretches gradually by spring and resets.

Below accompanying drawing is done simple declaration.

Fig. 1 is a schematic side view of the present utility model.

Fig. 2 is tooth (snail) the roller box schematic diagram that drives reel.

Fig. 3 is the full ultimate limit state vertical view that stretches of frame linkage.There is limited block at hinge B, E place, prevent that connecting rod and rocking arm from straightening to straight line fully.

Fig. 4 is frame linkage half an extended configuration vertical view.

Fig. 5 is the full rounding state vertical view of frame linkage.

Fig. 6 is one of spring assembly example that makes the frame stretching, extension.

Fig. 7 makes two of spring assembly example that frame stretches.

Fig. 8 is the structure rear elevation (analysing and observe) that hinge C place regulates the frame angle of pitch.

Fig. 9 is the structure left side view that hinge C place regulates the frame angle of pitch.

Figure 10 is the structural representation of regulating tooth in vertical plane (snail) roller box established angle.

Below the utility model is done further to launch to describe, and provide each preferred embodiment partly.

Each rod member length: AF=a of frame linkage, CD=d, AB=FE=b, BC=ED=c, preferably by following relation: a+2c=2b+d, to guarantee that frame can draw in the minimum space, promptly 6 rod members are overlapped into Fig. 5 state between each rod member length.One of as an example: a=1000 millimeter, b=450 millimeter, c=650 millimeter, d=1400 millimeter; As an example two: a=2000 millimeter, b=950 millimeter, c=1850 millimeter, d=2400 millimeter.

Tooth (snail) roller box that drives reel can adopt the helical gear drive with self-locking property, also can adopt the worm-drive with self-locking property.As preferred helical gear drive parameter be: 2.5 millimeters of normal modules, driving gear ［ 10 ］ is a double threaded screw, preferably dextrorotation, also can be left-handed, 7 ° of helical lift angles, 41.03 millimeters of reference diameters, and driven gear ［ 11 ］ number of teeth 17,42.82 millimeters of reference diameters; As preferred worm-drive parameter be: 2.5 millimeters of worm screw axial modules, double-thread worm, preferably dextrorotation also can be left-handed, 6 ° 20 ' 25 of helical lift angle ", 45 millimeters of reference diameters, the worm gear number of teeth 17,42.50 millimeters of reference diameters; Also can select the worm-drive of following parameter for use: 3 millimeters of worm screw axial modules, single start worm, preferably dextrorotation also can be left-handed, 5 ° 42 ' 38 of helical lift angle ", 30 millimeters of reference diameters, the worm gear number of teeth 17,51 millimeters of reference diameters.

Frame stretch and the power that resets from spring, structural scheme can be by shown in Figure 7: do a projection in rocking arm ［ 3 ］ outside, then it and fixed bar ［ 4 ］ outer end are strained with spring ［ 20 ］, same, make the structure of symmetry therewith between rocking arm ［ 3 ' ］ on the right and the fixed bar ［ 4 ］.Better frame stretching, extension, scheme such as Fig. 6 of resetting: be through connecting rod ［ 2 ］ and rocking arm ［ 3 ］ center with traction thing ［ 19 ］, connect hinge A and C, but at hinge A(or C) locate to add spring ［ 18 ］ to increase the elasticity of traction thing, the traction thing is then walked around the B hinge from the inboard, with the trend that keeps stiff spring power to have the connecting rod of making and rocking arm to stretch all the time.Connecting rod ［ 2 ' ］ equally, is on the right also done symmetrical processing with rocking arm ［ 3 ' ］.As embodiment, the traction thing can be used 2～4 millimeters wire rope of diameter, also can be with the spring steel band of 0.3～0.4 millimeters thick, 8 mm wides.

The common level of frame is installed, but also can regulate folded pitch angle between itself and the horizontal plane as required, and concrete structure is referring to Fig. 8,9.Fixed disk among the figure ［ 15 ］ is fixed by bolt ［ 21 ］ and fixed bar ［ 4 ］, form hinge C with rivet ［ 22 ］ pinning between movable disk ［ 16 ］ and joint ［ 17 ］, joint ［ 17 ］ inserts rocking arm ［ 3 ］ and fixed, make 2 arc grooves ［ 23 ］ on the fixed disk ［ 15 ］, mix up after the angle fixing between movable disk and the fixed disk with bolt ［ 24 ］.Equally, make and above-mentioned symmetrical structure at hinge D place.

The driving shaft of tooth (snail) roller box is vertical downward state usually, the operator is hooked the annular distance of driving shaft ［ 8 ］ end so that hand from the below with the gib head of rocking bar ［ 9 ］ upper end, but but the also setting angle of regulating tooth (snail) roller box as required, to change the angle between driving shaft and the plumb line, concrete structure is referring to Figure 10.Tooth among the figure (snail) roller box ［ 5 ］ and rocking bar ［ 9 ］ 2 positions of all drawing: the position that solid line is drawn, the position of another dot-dash line drawing.Bearing ［ 14 ］ is fixed by bolt ［ 25 ］ and fixed bar, makes 2 arc grooves ［ 13 ］ on the bearing, is fixed in the arc groove with screw ［ 12 ］ after tooth (snail) wheel casing mixes up angle.

For weight reduction and increase rigidity, each rod member of frame all can adopt hollow special-shaped section aluminium alloy pipe, also available hollow steel surface plating antirust coat.

Claims

1, the scalable mat shelter that constitutes by frame and canopy cloth, it is characterized in that the linkage that frame is made up of symmetrical 6 rod members, one end of the cross bar in its place ahead and canopy cloth is fixed, and with hinge respectively with about two isometric connecting rods link to each other, two connecting rods link to each other with two isometric rocking arms with hinge respectively again, two rocking arms are connected with the fixed bar at rear with hinge respectively again, the other end of canopy cloth twists on the reel of fixed bar top, end and reel are fixed, reel drives by gear-box, and the driving shaft of gear-box can be hooked with one of rocking bar by the operator, drives by hand.

2, by the described mat shelter of claim 1, it is characterized in that each rod member length of linkage (all referring to distance between hinge) satisfies following relation: a+2c=2b+d, in the formula: a is that cross bar is long, b be about two length of connecting rod, c be about two rocking arms long, d is that fixed bar is long.

3, by the described mat shelter of claim 2, it is characterized in that each rod member length is in the linkage: a=1000 millimeter, b=450 millimeter, c=650 millimeter, d=1400 millimeter.

4, by the described mat shelter of claim 2, it is characterized in that each rod member length is in the linkage: a=2000 millimeter, b=950 millimeter, c=1150 millimeter, d=2400 millimeter.

5, by the described mat shelter of claim 1, it is characterized in that all doing a projection in the two rocking arms outside of linkage, they and fixed bar outer end are strained with spring.

6, by the described mat shelter of claim 1, it is characterized in that passing with the traction thing, connect cross bar hinge and fixed bar hinge, but locate to add spring, and the traction thing is walked around the hinge between connecting rod and rocking arm from the inboard at one of two hinge at the connecting rod and the rocking arm center of linkage.

7,, it is characterized in that in the rocking arm of linkage that the traction thing is with the wire rope of diameter 2-4 millimeter by the described mat shelter of claim 9.

8,, it is characterized in that the spring steel band of traction thing in the rocking arm of linkage with 8 millimeters of thickness 0.3-0.4 millimeters, width by the described mat shelter of claim 9.

9, by the described mat shelter of claim 1, it is characterized in that being formed by fixed disk, movable disk and joint at the rocking arm and the hinge between the fixed bar of linkage, form hinge with rivet between movable disk and the joint, joint inserts rocking arm and fixed with it, fixed disk is then fixed with fixed bar, make 2 arc grooves on the fixed disk, movable disk is fixed in the arc groove with bolt.

10, by the described mat shelter of claim 1, it is characterized in that gear-box is screwed in 2 arc grooves of bearing, bearing is then fixed by bolt and fixed bar.

11,, it is characterized in that each rod member of linkage adopts hollow special-shaped section aluminium alloy pipe or hollow steel surface plating antirust coat by the described mat shelter of claim 1.