CN2534863Y

CN2534863Y - Rocking-handle anti-skid structure of parasol

Info

Publication number: CN2534863Y
Application number: CN 02216822
Authority: CN
Inventors: 马准安
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-15
Filing date: 2002-04-15
Publication date: 2003-02-12
Anticipated expiration: 2012-04-15

Abstract

The utility model relates to a slide-stopping structure of the crank of a sunlight-shielding umbrella, which relates to the technical field of slide-stopping devices unfolding and folding the sunlight-shielding umbrella. The utility model includes a crank, a main shaft of the crank and a positioning block fixed on a middle pole. A rope-winding bracket, which can cooperatively move along with the main shaft of the crank and which can position an umbrella rope, is nested on the main shaft of the crank; one end of the rope-winding bracket is clamped in the middle pole shaft hole opposite to the positioning block, and the other end is positioned in the middle pole; a slide-stopping shell positioned outside and fixed on the middle pole is nested on the main shaft of a crank and can axially position the rope-winding bracket and the main shaft of the crank; and a torsion spring is arranged between the cooperative moving position of the slide-stopping shell and the rope-winding bracket and the main shaft of the crank. The outer diameter of the torsion spring can be reduced as the rotating of the main shaft of the crank, so the utility model can be easily operated clockwise and counterclockwise; with a simple structure and a good slide-stopping effect, the utility model is easy to be assembled, ; because the head of the umbrella rope is not in the rope-winding area of the rope-winding bracket, the umbrella rope can be evenly wound on the rope-winding bracket, so that the mutual clamping does not occur, thus ensuring the durability of the umbrella rope.

Description

Parasols crank Skidproof structure

Technical field

The utility model relates to a kind of technical field that opens and closes the device of parasols, especially refers to a kind of parasols crank structure with on-slip effect.

Background technology

Parasols is a kind of necessary tool of existing public leisure place sunshade, it provides the comfortable space of enjoying the cool for people carry out outdoor activities, have the long-pending big characteristics of umbrella cover height and umbrella cover when opening because of it, and can not resemble conventional en-toutcas only with the hand push liter or fold, so common parasols rod therein is provided with a kind of crank structure, control opening or folding of umbrella cover, referring to Fig. 4, it comprises crank, crank main shaft and the locating piece that is fixed on the middle rod, in this crank structure, also be provided with a lifting controller, it comprises ratchet 9, ratchet 14, ratchet spring 13, on-slip pad 8 and nut 10, when using, rotate crank by hand, make the crank main axis rotation and drive the umbrella rope and umbrella cover is opened, ratchet 9 rotates and unplugs ratchet 14 simultaneously because of the clamping that is subjected to on-slip pad 8 and nut 10 simultaneously, like this ratchet 14 whenever cross a ratchet can be against living ratchet 9, after umbrella cover opens, ratchet 14 stops the downslide of parasols because of the restoring force effect of ratchet spring 13 against living ratchet 9, played the on-slip effect thus, thereby guaranteed that umbrella cover opens the effect that sunshade area in back does not reduce.But in use, following defective (1) still can appear in crank main axis rotation process, spring promotes plane on-slip pad 8 and compresses ratchet 9, this makes the umbrella rope produce rope internode embedding folder power in the wiring process, this power might make umbrella rope edge embed the locating piece on both sides, thereby causes the easy wear and rupture of umbrella rope; (2) the on-slip power of this Skidproof structure size is regulated by nut 10 coupling mechanism forces, so when on-slip power was big, nut 10 coupling mechanism forces must increase thereupon, and the user also needs to operate with bigger power simultaneously, thereby requires great effort very much; (3) this Skidproof structure is to utilize the resilience of material self to promote plane on-slip pad 8, and material self coefficient of resilience is less, also need lean on the trace of nut 10 to regulate and reach requirement, and this not only makes assembling lengthening in man-hour, and in case regulate bad, in the time of also can causing the power of shaking big and the phenomenon of not on-slip; (4) in the said structure, be provided with grooving 12, be mainly used in split pin 11 and come setscrew nut 10, and in use, this split pin 11 and grooving 12 easy deformation are damaged, thereby cause the inefficacy of on-slip function at the end of crank main shaft.

Summary of the invention

Technical problem to be solved in the utility model is to overcome above-mentioned defective, provide a kind of simple in structure, be easy to make, operation and the durable parasols crank Skidproof structure of umbrella rope.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this parasols crank Skidproof structure is fixed on the middle rod of parasols, and it comprises crank, crank main shaft and locating piece, and the upside of described crank forms horizontal sleeve pipe; Described locating piece is provided with perforation and is fixed on the middle rod; One end of crank main shaft inserts in the above-mentioned sleeve pipe fastening with it, rod and match during the other end radially runs through with perforation on the locating piece, it is characterized in that: be set with match with the crank main shaft transmission and wiring frame that can the umbrella rope on the described crank main shaft, one end of wiring frame is connected in the middle excellent axis hole place of relative positioning piece, and the other end is arranged in rod; On the crank main shaft, also be set with the on-slip housing that is arranged in rod outer and axial location wiring frame and crank main shaft, on the rod, between above-mentioned wiring frame and cooperation transmission place of crank main shaft and on-slip housing, be provided with torsion spring during this on-slip housing is fixed on.

Described wiring frame profile can be " H " type, the lateral surface of wiring frame one end is provided with fan-shaped bump, on the crank main shaft, be provided with the arc piece that is complementary with fan-shaped bump with this fan-shaped bump position opposite position, two ends of torsion spring are positioned respectively on the sagittal plane of this arc piece.

Can be provided with the boss of excellent axis hole in can inserting on the medial surface of described wiring frame one end.

Can be provided with the fixedly counter sink of umbrella fag end between the lateral surface of described raised head face and wiring frame one end.

Described on-slip housing can be the cylindrical shell of a hollow, the bottom surface of cylindrical shell is step and is provided with the circular hole that matches with the crank main shaft, this step bottom surface can with crank main shaft, the wiring frame location that is interlocked, the end face of cylindrical shell mouth extends outward curved surface, this curved surface and middle excellent profile match.

Can be provided with square draw-in groove in the described crank sleeve pipe, the crank spindle end that is fastened with sleeve pipe is set as the square shaft that matches with square draw-in groove.

Described square shaft end face is provided with the screwed hole that is fastened with crank.

Compared with prior art, advantage of the present utility model is: owing to be provided with torsion spring between on-slip housing and wiring frame, the external diameter of torsion spring can dwindle along with the rotation of crank main shaft, thereby can be easily along contrary free operant; Also have when on-slip power increases, torsion spring self just can be regulated, and need not to rely on other part, so simple in structure, assembling is easy and anti-slip effect is good; Moreover on the crank main shaft, be provided with the wiring frame, and the umbrella fag end is in the wiring district of wiring frame, thereby can make that the umbrella rope is uniform sequential to be centered around on the wiring frame, can not produce embedding folder power each other, makes the umbrella rope durable in use.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram;

Fig. 2 be among Fig. 1 A-A to schematic diagram;

Fig. 3 is the three-dimensional exploded view of Fig. 1;

Fig. 4 is a crank Skidproof structure schematic diagram in the prior art.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1 to Fig. 3, in an embodiment, parasols crank Skidproof structure be fixed on parasols middle excellent 6 on, it comprises crank 1, locating piece 7, crank main shaft 4, wiring frame 5 etc., the upside of crank 1 forms horizontal sleeve pipe 11, is provided with square draw-in groove 12 in the sleeve pipe 11; Locating piece 7 upper side form the curved surface 74 that is complementary with middle excellent 6 profiles, on this curved surface 74, be provided with perforation 71 and extend laterally out flange 72 at the peritreme place, during can inserting, these flange 72 limits in the axis hole of rod 6, also are provided with on the locating piece 7 and middle excellent 6 locating holes that fix 73; Described wiring frame 5 hollows and profile are " H " type, the lateral surface of wiring frame 5 one ends is provided with fan-shaped bump 53, on the medial surface of wiring frame 5 these ends, be provided with the boss 52 that matches with middle excellent 6 axis holes, between the lateral surface of these boss 52 end faces and wiring frame 5 these ends, be provided with the fixedly counter sink 51 of umbrella fag end; One end of crank main shaft 4 is set as square shaft 42, square draw-in groove 12 in this square shaft 42 and the above-mentioned crank sleeve pipe 11 matches, and on the end face of square shaft 42, be provided with and be used for the screwed hole 43 that crank 1 and crank main shaft 4 fix, on crank main shaft 4, the position relative with fan-shaped bump 53 on the wiring frame 5 is provided with the arc piece 41 that is complementary with fan-shaped bump 53, one torsion spring 3 is enclosed within the junction of this arc piece 41 and fan-shaped bump 53, and two ends of torsion spring 3 are positioned respectively on the sagittal plane of this arc piece 41; One on-slip housing 2 is cylindrical shells of a hollow, and the bottom surface 22 of cylindrical shell is step, and 22 centre is provided with the circular hole that matches with crank main shaft 4 in the bottom surface, and the end face of cylindrical shell mouth extends outward curved surface 21, and this curved surface 21 matches with middle excellent 6 profiles.

During this crank Skidproof structure assembling, the axis hole place of rod 6 in earlier the flange on the locating piece 7 72 being inserted, and fix with middle excellent 6 by the locating hole on the locating piece 7 73, then the square draw-in groove 12 in the square shaft 42 insertion crank sleeve pipes 11 of crank main shaft 4 one ends, in the screwed hole 43 on the screw rod screw-in square shaft 42, crank 1 and crank main shaft 4 are fixed; Be fixed on counter sink 51 on the wiring frame 5 one end lateral surfaces being arranged in rod 6 umbrella fag end again, and another axis hole place of rod 6 in 52 insertions of the boss on the wiring frame 5 one end medial surfaces, on the other end of crank main shaft 4, put simultaneously on-slip shell 2, torsion spring 3 successively, and run through wiring frame 5, arc piece 41 on the crank main shaft 4 is matched with fan-shaped bump 53 on the wiring frame 5, make torsion spring 3 be placed in the cooperation place of above-mentioned arc piece 41 and fan-shaped bump 53, and two ends of torsion spring 3 are positioned on the sagittal plane of this arc piece 41 respectively; At last, the other end of crank main shaft 4 is inserted in the perforation 71 of locating piece 7, the step bottom surface 22 of on-slip housing 2 respectively clamping live the arc piece 41 on the crank main shaft 4, the fan-shaped bump 53 on the wiring frame 5 and the torsion spring 3 that is positioned at the two junction, rod 6 and fixing with it during the curved surface 21 on the on-slip housing 2 is adjacent to.

When reality is used, external force makes crank 1 rotation, crank main shaft 4 also rotates thereupon, because the arc piece 41 on the crank main shaft 4 matches with the fan-shaped bump 53 on the wiring frame 5, thereby wiring frame 5 also rotates thereupon, this makes that being enclosed within arc piece 41 follows rotation with the torsion spring 3 of fan-shaped bump 53 junctions, make torsion spring 3 to the intracardiac pressure of spring, the reduced diameter of torsion spring 3 as a result, make and do not have friction between torsion spring 3 and the on-slip housing 2, and between arc piece 41 and the fan-shaped bump 53 because the interior pressure of torsion spring 3, the two cooperation tighter, the operator just can rotate crank main shaft 4 and wiring frame 5 like a cork like this, because an end of umbrella rope is fixed in the counter sink 51 on the end lateral surface of wiring frame 5, the other end of umbrella rope connects the following nest of umbrella, the umbrella rope is just along with the rotation of wiring frame 5 like this, uniform sequential in the wiring district of wiring frame 5, the rope internode can not produce embedding folder power, makes umbrella be in deployed condition.When external force finishes, crank main shaft 4 stops operating, this moment the umbrella rope be subjected to umbrella following nest, bend towards the influence that contrary power and umbrella launch power, make the umbrella rope produce the trend of reverse rising, wiring frame 5 will backwards rotation, this moment torsion spring 3 outside diffusions, it is big that torsion spring 3 external diameters become, torsion spring 3 is rubbed mutually with on-slip housing 2, stop 5 rotations of wiring frame, reach the effect of on-slip.When drawing parasols in, identical with the principle of launching parasols, external force makes the crank reverse movement, drives crank main shaft 4 backwards rotation, presses reduced diameter, easily revolution in the torsion spring 3.

Claims

1. a parasols crank Skidproof structure is fixed on the middle rod (6) of parasols, and it comprises crank (1), crank main shaft (4) and locating piece (7), and the upside of described crank (1) forms horizontal sleeve pipe (11); Described locating piece (7) is provided with perforation (71) and is fixed on the middle rod; One end of crank main shaft (4) inserts in the above-mentioned sleeve pipe (11) fastening with it, the other end radially runs through middle rod (6) and matches with perforation (71) on the locating piece (7), it is characterized in that: be set with match with crank main shaft (4) transmission and wiring frame (5) that can the umbrella rope on the described crank main shaft (4), one end of wiring frame (5) is connected in middle rod (6) the axis hole place of relative positioning piece (7), and the other end is arranged in rod (6); Also be set with on crank main shaft (4) and be arranged in outside the rod (6) and the on-slip housing (2) of axial location wiring frame (5) and crank main shaft (4), this on-slip housing (2) is fixed on the middle rod (6); Between wiring frame (5) and crank main shaft (4) cooperation transmission place and on-slip housing (2), be provided with torsion spring (3).

2. parasols crank Skidproof structure according to claim 1, it is characterized in that: described wiring frame (5) profile is " H " type, the lateral surface of wiring frame (5) one ends is provided with fan-shaped bump (53), on crank main shaft (4), be provided with the arc piece (41) that is complementary with fan-shaped bump (53) with this fan-shaped bump (53) position opposite position, two ends of torsion spring (3) are positioned respectively on the sagittal plane of this arc piece (41).

3. parasols crank Skidproof structure according to claim 1 and 2 is characterized in that: the boss (52) of rod (6) axis hole during the medial surface of described wiring frame (5) one ends is provided with and can inserts.

4. parasols crank Skidproof structure according to claim 3 is characterized in that: be provided with the fixedly counter sink of umbrella fag end (51) between the lateral surface of described boss (52) end face and wiring frame (5) one ends.

5. parasols crank Skidproof structure according to claim 1, it is characterized in that: described on-slip housing (2) is the cylindrical shell of a hollow, the bottom surface of cylindrical shell (22) is step and is provided with the circular hole that matches with crank main shaft (4), this step bottom surface (22) can with crank main shaft (4), wiring frame (5) location that is interlocked, the end face of cylindrical shell mouth extends outward the curved surface (21) that matches with middle rod (6) profile.

6. parasols crank Skidproof structure according to claim 1, it is characterized in that: be provided with square draw-in groove (12) in the described crank sleeve pipe (11), crank main shaft (4) end that is fastened with sleeve pipe (11) is set as the square shaft (42) that matches with square draw-in groove (12).

7. parasols crank Skidproof structure according to claim 6 is characterized in that: described square shaft (42) end face is provided with the screwed hole (43) that is fastened with crank (1).