CN203860594U - Double-shoulder umbrella frame for automatically keeping umbrella uprightly balanced - Google Patents
Double-shoulder umbrella frame for automatically keeping umbrella uprightly balanced Download PDFInfo
- Publication number
- CN203860594U CN203860594U CN201420241072.0U CN201420241072U CN203860594U CN 203860594 U CN203860594 U CN 203860594U CN 201420241072 U CN201420241072 U CN 201420241072U CN 203860594 U CN203860594 U CN 203860594U
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- Prior art keywords
- backrest
- umbrella
- upper rack
- rack posts
- supporting rod
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- Withdrawn - After Issue
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Abstract
The utility model relates to a double-shoulder umbrella frame for automatically keeping an umbrella uprightly balanced, which can be applied in protecting against the sunlight or the rain by fixing the umbrella on the back of a person when walking or stooping down. The umbrella frame consists of an upper supporting rod, a lower supporting rod, a waist belt plug and a back frame with double-shoulder back straps and is characterized in that the upper supporting rod is hinged with a back frame pivot shaft; a tension spring is arranged between an upper supporting rod resisting arm and the back frame; one end of a pulling rope is tied on an upper supporting rod force application arm; the other end of the pulling rope is tied and fixed on the waist belt plug through a series of fixed pulleys; a sector gear is closely fixed on the back frame pivot shaft; a vertical pendulum and a cam are hinged to the upper supporting rod pivot shaft for synchronous rotation; a plug pin with an armature spring is mounted on the upper supporting rod; the bottom of the plug pin is propped against the cam protruding point; the tail end of the plug pin is inserted in a positioning tooth groove on the periphery of the sector gear; the lower supporting rod is connected with the waist belt plug through a three-outer-joint four-point hinged type planar four bar mechanism; According to the double-shoulder umbrella frame for automatically keeping the umbrella uprightly balanced, the vertical pendulum responses highly and sensitively, the frame can conveniently protect against the rain or the sunlight when the person walks or stoops down, the stability of the back frame on the back is well maintained; besides, the umbrella frame is suitable for people with different heights.
Description
Technical field
The utility model relates to the Dual-shoulder umbrella stand of the vertical balance of automatic maintenance umbrella, be applied to the back that umbrella is fixed on to people, facilitate people to vacate can also to allow in both hands go work people upright, bend in conversion, effectively carry out sunshade or take shelter from rain by the umbrella leaf launching all the time between two states.
Background technology
Existing Dual-shoulder umbrella stand, is made up of upper rack posts, lower fulcrum bar, backrest.Upper rack posts is for fixing umbrella.Lower fulcrum bar is connected with waistband plug, and waistband plug is for pitching at waistband.Backrest band Braces hanged over tow shoulders.When use, backrest contacts with back, is jointly fixed by two braces, waistband plug three on both shoulders.Be characterized in that upper and lower pole and backrest machinery are fixing.When being converted to upper and lower pole while bending over state from erectility, user also becomes level from erected state together with backrest.Therefore, this Dual-shoulder umbrella stand cannot meet that people are upright, keep off the rain in the work of bending over to alter one's posture back and forth or the needs of sunshade.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point of the prior art, the Dual-shoulder umbrella stand that provide that a kind of people are upright, umbrella can remain at the vertical balance of automatic maintenance umbrella of vertical poised state in the work of bending over to alter one's posture back and forth.
The purpose of this utility model can reach by following technical proposals: (A) automatically keep the Dual-shoulder umbrella stand of the vertical balance of umbrella, by upper rack posts, lower fulcrum bar, waistband plug, form with the backrest of Braces hanged over tow shoulders; Lower fulcrum bar is fixed in backrest; It is characterized in that:
(a) upper rack posts is hinged with backrest fulcrum shaft; Between upper rack posts resistance arm and backrest, be with extension spring; On upper rack posts force arm, be stay cord one end, stay cord fixes on waistband plug by other end system after being fixed on the serial fixed pulley change direction on backrest, lower fulcrum bar;
(b) backrest fulcrum shaft tightens sector gear; Pendulum and cam are hinged on upper rack posts fulcrum shaft and synchronously rotate; Upper rack posts is by the latch of tongue seat mounting strap tongue; Latch root is against cam salient point, and end is inserted on the teeth groove of sector gear outer rim location;
(c) lower fulcrum bar is connected with waistband plug by the four-point articulated lanar four rod mechanism of three couplings; The first coupling and lower fulcrum bar end are hinged, and the second coupling and lower fulcrum bar chute are slidably connected, and the 3rd coupling and waistband plug machinery are fixing.
(B) the Dual-shoulder umbrella stand of the vertical balance of automatic maintenance umbrella described in A, is characterized in that lower fulcrum bar band bar shaped tooth, is inserted in backrest cavity, regulates and stretches out the length of backrest and fastening by being arranged on the engagement of set screw in backrest.
(C) the Dual-shoulder umbrella stand of the vertical balance of automatic maintenance umbrella described in A or B, is characterized in that waistband plug is fixing with the 3rd coupling machinery by stay cord tensioning box, is fixed mutually with the stay cord other end; Described stay cord tensioning box is made up of the locking wheel outside the wire bar in box body, box body, two-dimensional helical tensioned gear, the coaxial meshing wheel of wire bar, box body; Two-dimensional helical tensioned gear engages with the coaxial meshing wheel of wire bar; Locking wheel endoporus and wire bar rotating shaft connect, and the restriction rotation hole on locking wheel outer rim and box side wall connects.
The utility model compared to existing technology tool has the following advantages:
1, upper rack posts can only be made Plane Rotation by backrest fulcrum shaft is hinged, then by stay cord, extension spring acting in conjunction, upper rack posts is maintained to vertical direction, and backrest is done the rotation about backrest fulcrum shaft with respect to upper rack posts at one's discretion.In this rotation process, latch end is located teeth groove from sector gear outer rim one and is exited and remove locking to upper rack posts and then insert another location teeth groove upper rack posts is done to new locking.Due to location teeth groove dense distribution on sector gear excircle, the vertical state of upper rack posts umbrella in people bends over process is also just locked and is maintained continuously, pendulum has responded the conversion that people are upright and bend between two states delicately, has facilitated bend over keeping off the rain and sunshade in process of people.
2, between lower fulcrum bar end and waistband plug, be connected by the four-point articulated lanar four rod mechanism of three couplings, ensured from uprightly transforming to the process of bending over, the backrest that both shoulders are carried can fast slide to head, maintained the stability of backrest at back.
3, the employing of stay cord tensioning box, allows guy winding on wire bar, and when lower fulcrum bar length is adjusted, waistband plug is adjusted to the bracing wire length between upper rack posts force arm.Lower fulcrum bar length is adjustable.These all make the utility model go for the people of differing heights.
Brief description of the drawings
Fig. 1 is the utility model structural front view.
In figure, 1 is backrest, the 3rd, and extension spring, the 5th, sector gear, the 7th, backrest fulcrum shaft, the 9th, backrest fulcrum shaft holder, the 11st, with the latch of tongue, the 13rd, pendulum, the 15th, upper rack posts fulcrum shaft, the 17th, cam, the 19th, upper rack posts, the 21st, serial fixed pulley, the 23rd, set screw, the 25th, lower fulcrum bar.
Fig. 2 is the right view having added on Fig. 1 basis after stay cord, the four-point articulated lanar four rod mechanism of three couplings, waistband plug.
In figure, 1 is backrest, the 19th, and upper rack posts, the 17th, cam, the 13rd, pendulum, the 15th, upper rack posts fulcrum shaft, the 11st, with the latch of tongue, the 5th, sector gear, the 7th, backrest fulcrum shaft, the 9th, backrest fulcrum shaft holder, the 3rd, extension spring, the 21st, serial fixed pulley, the 27th, stay cord, the 25th, lower fulcrum bar, the 29th, waistband plug, the 31st, stay cord tensioning box, 33 is the four-point articulated lanar four rod mechanisms of three couplings.
Fig. 3 is A-A cutaway view in Fig. 1.
In figure, 1 is backrest, the 23rd, and set screw, the 23rd, lower fulcrum bar.
Fig. 4 is B-B cutaway view in Fig. 1.
In figure, 1 is backrest, the 19th, and upper rack posts, the 17th, cam, the 13rd, pendulum, the 15th, upper rack posts fulcrum shaft.
Fig. 5 removes C-C cutaway view after latch and tongue, pendulum in Fig. 1.
In figure, 1 is backrest, the 9th, and backrest fulcrum shaft holder, the 3rd, extension spring, the 7th, backrest fulcrum shaft, the 5th, sector gear, the 19th, upper rack posts.
Detailed description of the invention
The utility model is further described below in conjunction with accompanying drawing.Automatically keep the Dual-shoulder umbrella stand of the vertical balance of umbrella, formed by upper rack posts (19), lower fulcrum bar (25), waistband plug (29), backrest (1) with Braces hanged over tow shoulders; Lower fulcrum bar (25) is fixed in backrest (1).The utility model upper rack posts (19) is hinged with backrest fulcrum shaft (7), and backrest fulcrum shaft is fixed as one with backrest.Thereby upper rack posts can rotate around backrest fulcrum shaft, turns to the position perpendicular to backrest face from being parallel to the position of backrest face.Between upper rack posts resistance arm and backrest, be with extension spring (3); On upper rack posts force arm, be stay cord (27) one end, stay cord (27) fixes on waistband plug (29) by other end system after being fixed on serial fixed pulley (21) the change direction on backrest, lower fulcrum bar.The purposes of upper rack posts is for fixing umbrella.So, supporting whole the upper rack posts of umbrella.From the effect of power, upper rack posts, except gravitate, is also subject to the effect of stay cord, extension spring, three active forces of backrest fulcrum shaft.Wherein, backrest fulcrum shaft has limited upper rack posts and can only do Plane Rotation.The active force of stay cord and the active force of extension spring act on upper rack posts, and application point is respectively in the both sides of backrest fulcrum shaft, and using upper rack posts as a lever, this application point is fulcrum.
Backrest fulcrum shaft (7) tightens sector gear (5); Pendulum (13) and cam (17) are hinged on upper synchronous rotation of upper rack posts fulcrum shaft (15).The effect of pendulum is no matter which position upper rack posts forwards to respect to backrest face, and pendulum is all because self gravitate keeps in the vertical direction pendulum center line all the time.Upper rack posts (19) is by the latch (11) of tongue seat mounting strap tongue; Latch root is against cam (17) salient point, and end is inserted in the location teeth groove of sector gear (5) outer rim.When latch end is inserted in the location teeth groove of sector gear outer rim, lock upper rack posts, the upper rack posts having locked cannot rotate around backrest fulcrum shaft again.And when backrest is during with human body run-off the straight, pendulum rotates with respect to upper rack posts, but allow all the time pendulum center line keep in the vertical direction.Pendulum is in this rotation, cam also rotates, latch root is cancelled by the active force of cam salient point, under the effect of tongue, latch end exits the location teeth groove in sector gear outer rim, upper rack posts lock-out state is removed, and between upper rack posts and backrest, can relatively rotate around backrest fulcrum shaft.In the time that upper rack posts forwards certain angle to, and the synchronous cam rotating of pendulum, its salient point is inserted into latch end again in another location teeth groove in sector gear outer rim and upper rack posts is locked again.
Lower fulcrum bar (25) is connected with waistband plug (29) by the four-point articulated lanar four rod mechanism of three couplings (33); The first coupling and lower fulcrum bar end are hinged, and the second coupling and lower fulcrum bar chute are slidably connected, and the 3rd coupling and waistband plug (29) machinery are fixing.The effect of the four-point articulated lanar four rod mechanism of three couplings is in the time that people bends over, prevent backrest by back fast slide to neck, simultaneously can adapt to the needed length variations of speed of bending over, allow backrest by Braces hanged over tow shoulders and waistband plug more stable carried on the back at back.
For the same device of the utility model can use for the people of different heights, lower fulcrum bar (25) can be made into length-adjustable, and the surface that lower fulcrum bar is connected to that section of backrest is made into band bar shaped tooth, and is inserted in backrest (1) cavity.By being arranged on set screw (23) in backrest engagement bar shaped tooth, drive lower fulcrum bar from the overhang in backrest cavity by rotation set screw, and then regulate lower fulcrum bar to stretch out the length of backrest.For the lower fulcrum bar length regulating is fixed, the hand of set screw is twisted in the hole on nut screw-in mount pad and is formed lock-out state by bayonet connection.Get final product release from hole inward turning out and twist nut when set screw hand.
Waistband plug (29) can also be fixed, be fixed mutually with the stay cord other end with the 3rd coupling machinery by stay cord tensioning box (31).For adapting to required pulling rope length under different lower fulcrum bar length.Described stay cord tensioning box is made up of the locking wheel outside the wire bar in box body, box body, two-dimensional helical tensioned gear, the coaxial meshing wheel of wire bar, box body.Two-dimensional helical tensioned gear engages with the coaxial meshing wheel of wire bar.Two-dimensional helical tensioned gear, its diameter, than the large manyfold of the coaxial meshing wheel of wire bar, is provided the potential energy of rotation by two-dimensional helical spring, turn several turning around the wheel shaft coaxial meshing wheel that circles, wire bar, also can the same revolution of while phase inversion because synchronize and rotate with the coaxial meshing wheel of wire bar.Locking wheel endoporus and wire bar rotating shaft connect, and it connects feature is that endoporus is prismatic, and wire bar rotating shaft section outside box is also prismatic, locking wheel can not be relatively rotated with wire bar rotating shaft, but can slide axially along wire bar rotating shaft.Restriction rotation hole on locking wheel outer rim and box side wall connects, and it connects feature is to interconnect by the hole on locking wheel outer rim and box side wall by bayonet connection, forms lock-out state or released state.
The utility model before use, is adjusted to suitable length lower fulcrum bar; Upper rack posts is adjusted to the position that same backrest face parallels, rotate pendulum and by cam, latch end is inserted in the location teeth groove I of sector gear outer rim and locks upper rack posts.Full stay cord section is adjusted to suitable length.When use, umbrella handle is fixed with upper rack posts, open umbrella leaf, back the utility model, allows the Braces hanged over tow shoulders in backrest carry on the back on left and right shoulder, and waistband plug is inserted in the behind section of waistband.Now, people is upright, and the umbrella leaf of expansion is directly over the number of people.
In the time that people starts to bend over to bend down above the waist, the same upper rack posts of pendulum (13) (19) run-off the straight together.Pendulum is very high because of sensitivity, first makes response, occurs to do counterclockwise rotation around upper rack posts rotating shaft (15), and then reaches the position that self center line and vertical direction coincide.Now, the cam (17) rotating of synchronizeing with pendulum departs from because of salient point, latch root loses the pressure-acting of cam, latch is extracted latch end out in the effect of tongue from the location teeth groove I of sector gear (5) outer rim, remove the locking to upper rack posts (19), and then make upper rack posts (19) do freely to rotate around backrest fulcrum shaft (7).Make afterwards the upper rack posts of response under the effect of stay cord (27), do counterclockwise rotation around backrest fulcrum shaft (7).In the time that upper rack posts shaft center line forwards same vertical direction to and coincides, due to upper rack posts fulcrum shaft (15), to be fixed on upper rack posts (19) upper, and pendulum center line also can go on vertical direction.Now, the salient point on cam is inserted into the end of latch in the locating slot II of sector gear (5) outer rim again, and upper rack posts (19) is locked.So just upper rack posts (19) or umbrella handle are maintained in the vertical direction.Conversely, people bends down from bending over when original place transforms to erectility above the waist, and pendulum is with upper rack posts together run-off the straight.Pendulum (13) is broken original inertia and is taken the lead in making response, make pendulum center line depart from vertical direction in the mode of rotating around upper rack posts fulcrum shaft (15) clockwise, allow salient point on cam (17) depart from and then remove the active force to latch root, latch is extracted latch end out under the effect of tongue from the locating slot II of sector gear (5) outer rim, remove the locking to upper rack posts (19).Simultaneously, stay cord (27) shortens in the needed length of back of the body waist, upper rack posts (19) is made response under the effect of extension spring (3) active force, does turning clockwise with respect to backrest (1) around backrest fulcrum shaft (7).In the time that upper rack posts (19) shaft forwards vertical direction to, pendulum center line also reaches with vertical direction and overlaps.The salient point of cam presses to latch root and latch end is inserted in the location teeth groove I of sector gear outer rim and locks upper rack posts (19).When upper rack posts is locked, umbrella can keep vertical balance, and is not subject to the impact of a certain size wind-force disturbance in the motion of human body when work four limbs and extraneous all directions.
Claims (3)
1. automatically keep the Dual-shoulder umbrella stand of the vertical balance of umbrella, formed by upper rack posts (19), lower fulcrum bar (25), waistband plug (29), backrest (1) with Braces hanged over tow shoulders; Lower fulcrum bar (25) is fixed in backrest (1); It is characterized in that:
(a) upper rack posts (19) is hinged with backrest fulcrum shaft (7); Between upper rack posts resistance arm and backrest, be with extension spring (3); On upper rack posts force arm, be stay cord (27) one end, stay cord (27) fixes on waistband plug (29) by other end system after being fixed on serial fixed pulley (21) the change direction on backrest, lower fulcrum bar;
(b) backrest fulcrum shaft (7) tightens sector gear (5); Pendulum (13) and cam (17) are hinged on upper synchronous rotation of upper rack posts fulcrum shaft (15); Upper rack posts (19) is by the latch (11) of tongue seat mounting strap tongue; Latch root is against cam (17) salient point, and end is inserted on the teeth groove of sector gear (5) outer rim location;
(c) lower fulcrum bar (25) is connected with waistband plug (29) by the four-point articulated lanar four rod mechanism of three couplings (33); The first coupling and lower fulcrum bar end are hinged, and the second coupling and lower fulcrum bar chute are slidably connected, and the 3rd coupling and waistband plug (29) machinery are fixing.
2. the Dual-shoulder umbrella stand of the vertical balance of automatic maintenance umbrella according to claim 1, it is characterized in that lower fulcrum bar (25) band bar shaped tooth, be inserted in backrest (1) cavity, regulate and stretch out the length of backrest and fastening by being arranged on the engagement of set screw (23) in backrest.
3. the Dual-shoulder umbrella stand of the vertical balance of automatic maintenance umbrella according to claim 1 and 2, is characterized in that waistband plug (29) is fixing with the 3rd coupling machinery by stay cord tensioning box (31), is fixed mutually with the stay cord other end; Described stay cord tensioning box is made up of the locking wheel outside the wire bar in box body, box body, two-dimensional helical tensioned gear, the coaxial meshing wheel of wire bar, box body; Two-dimensional helical tensioned gear engages with the coaxial meshing wheel of wire bar; Locking wheel endoporus and wire bar rotating shaft connect, and the restriction rotation hole on locking wheel outer rim and box side wall connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241072.0U CN203860594U (en) | 2014-05-12 | 2014-05-12 | Double-shoulder umbrella frame for automatically keeping umbrella uprightly balanced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241072.0U CN203860594U (en) | 2014-05-12 | 2014-05-12 | Double-shoulder umbrella frame for automatically keeping umbrella uprightly balanced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203860594U true CN203860594U (en) | 2014-10-08 |
Family
ID=51641589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241072.0U Withdrawn - After Issue CN203860594U (en) | 2014-05-12 | 2014-05-12 | Double-shoulder umbrella frame for automatically keeping umbrella uprightly balanced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203860594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948225A (en) * | 2014-05-12 | 2014-07-30 | 林家强 | Backpack umbrella standautomatically keeping umbrella vertical and balanced |
-
2014
- 2014-05-12 CN CN201420241072.0U patent/CN203860594U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948225A (en) * | 2014-05-12 | 2014-07-30 | 林家强 | Backpack umbrella standautomatically keeping umbrella vertical and balanced |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |