CN220088770U - Power transmission assembly of rotary open-close sunshade umbrella - Google Patents

Abstract

The utility model discloses a power transmission assembly of a rotary opening and closing type sunshade umbrella, which comprises a driving device, a transmission rod and a turning mechanism, wherein the turning mechanism comprises a first bending pipe and a second bending pipe, a mandrel is arranged on the first bending pipe, a worm wheel is arranged at the bottom end of the mandrel, a worm is arranged at the joint of the first bending pipe and the second bending pipe, the worm is mutually matched and connected with the worm wheel, a first driven bevel gear is arranged at the end part of the worm, a first driving bevel gear is arranged at the top end of the transmission rod, and is meshed with the first driven bevel gear.

Description

Power transmission assembly of rotary open-close sunshade umbrella

Technical Field

The utility model belongs to the technical field of sunshade umbrellas, and particularly relates to a power transmission assembly of a rotary open-close type sunshade umbrella.

Background

Sunshades are daily necessities for people to sunshade and sun, and are commonly used in rest areas such as courtyards, public places and the like. Along with the continuous promotion of the standard of living of people, the sunshade umbrella has wider and wider application range, and provides more comfortable leisure environment for people.

The chinese patent with publication number CN218185610U discloses a rotary open-close sunshade umbrella, which comprises a column, ribs and umbrella cloth, wherein the upper end of the column is provided with a unfolding device, the unfolding device is rotatably connected with the column, a plurality of ribs are arranged on the unfolding device, the umbrella cloth is connected with two adjacent ribs, the umbrella cloth is connected with the two adjacent ribs to further enable the ribs and the umbrella cloth to be serially connected in sequence to form the umbrella surface of the sunshade umbrella, the column is provided with a driving device, the driving device is in transmission connection with the unfolding device to enable the umbrella surface to be unfolded or folded, the upper end of the column is provided with a turning mechanism, the lower end of the unfolding device is in matched connection with the turning mechanism to further enable an included angle C to be formed between the unfolding device and the column, and the driving device is matched and connected with the unfolding device through the turning mechanism.

The turning mechanism comprises a first bending pipe and a second bending pipe, the lower end of the first bending pipe is fixed with the upper end of the second bending pipe, and an included angle C is formed between the first bending pipe and the second bending pipe; the lower end of the mandrel is rotatably arranged in the first bending pipe in a penetrating manner through a bearing, and the upper end of the mandrel is connected with the unfolding device in a matching manner; a transmission rod is arranged in the upright post, the lower end of the second bending pipe is fixedly connected with the upper end of the upright post, the upper end of the transmission rod is arranged in the second bending pipe in a penetrating manner, and the transmission rod is respectively connected with the second bending pipe and the upright post through a bearing; the upper end of the transmission rod is in transmission connection with the lower end of the mandrel, the driving device is in transmission connection with the lower end of the transmission rod, and the lower end of the mandrel and the upper end of the transmission rod are in transmission connection through two bevel gears or universal joints.

In the above-mentioned patent technology, power transmission relies on drive arrangement, transfer line, steering mechanism to reach the deployment device, when the rib receives reverse force, steering mechanism can't prevent for the power passes through the transfer line and transmits drive arrangement department, and the longer torsion that receives of transfer line is great, and easy deformation, the rib is also not firm enough.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the steering and decelerating device which can realize power transmission at the steering mechanism, and can realize unidirectional power transmission at the steering mechanism so as to prevent the umbrella ribs from reversing action due to other external forces.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rotatory open-close type sunshade umbrella's power transmission subassembly, includes drive arrangement, transfer line and turning mechanism, turning mechanism includes first bend and second bend, is equipped with the dabber on the first bend, the bottom of dabber is provided with the worm wheel, is provided with the worm in the junction of first bend and second bend, and the worm is connected with the worm wheel mutually support, the tip of worm is provided with first driven bevel gear, the top of transfer line is provided with first drive bevel gear, first drive bevel gear and first driven bevel gear meshing.

Further, a supporting plate is arranged at the joint of the first bending pipe and the second bending pipe, and the worm wheel is connected to the supporting plate through a bearing.

Further, a shaft hole is formed in the joint of the first bending pipe and the second bending pipe, and the end portion of the worm is connected with the shaft hole through a bearing.

The driving device further comprises a second driving bevel gear and a second driven bevel gear, the second driven bevel gear is connected to the bottom end of the transmission rod, the second driving bevel gear is meshed with the second driven bevel gear, and the second driving bevel gear is connected with a driving shaft.

Further the drive shaft is connected with a swinging arm or a motor.

Compared with the prior art, the utility model has the beneficial effects that: through being provided with worm gear mechanism in steering mechanism department for the force can only pass through the transfer line to dabber direction unidirectional transmission, when the rib receives external force to have the trend of drawing in, the reverse rotation action of dabber will be prevented by worm gear mechanism, avoids transmitting to transfer line department, guarantees that the rib is stable, and the transfer line can not take place distortion, and the cooperation of worm gear can make the dabber need not the axis of alignment with the transfer line simultaneously also can carry out the transmission of power.

Drawings

Fig. 1 is an exploded view of a rotary open-close type sunshade;

fig. 2 is a sectional view of the rotary open-close type sunshade;

FIG. 3 is an exploded view of the direction changing mechanism of the present utility model;

FIG. 4 is an exploded view of the drive assembly of the present utility model;

FIG. 5 is a cross-sectional view of the direction changing mechanism of the present utility model;

fig. 6 is a cross-sectional view of a driving apparatus in the present utility model.

Reference numerals: 1. a column; 2. a transmission rod; 21. a bevel gear joint; 3. a direction changing mechanism; 31. a first bend; 311. a support plate; 312. a shaft hole; 32. a second bent pipe; 33. a worm wheel; 34. a worm; 35. a second driven bevel gear; 36. a second drive bevel gear; 4. umbrella ribs; 5. a mandrel; 51. an inner liner; 6. a driving device; 61. a first driven bevel gear; 62. a first drive bevel gear; 63. a drive shaft; 64. swinging arms; 65. and a bevel gear shell.

Detailed Description

Embodiments of the present use-trusted rotary-open-close sunshade power transfer assembly will be further described with reference to fig. 1-6.

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model provides a rotatory open-close type sun shade's power transmission subassembly, includes drive arrangement 6, transfer line 2 and steering mechanism 3, steering mechanism 3 includes first elbow 31 and second elbow 32, is equipped with dabber 5 on the first elbow 31, the bottom of dabber 5 is provided with worm wheel 33, is provided with worm 34 in the junction of first elbow 31 and second elbow 32, worm 34 and worm wheel 33 mutually support and are connected, the tip of worm 34 is provided with first driven bevel gear 61, the top of transfer line 2 is provided with first drive bevel gear 62, and first drive bevel gear 62 meshes with first driven bevel gear 61.

In this embodiment, the outer side of the transmission rod 2 is provided with a stand column 1, that is, the transmission rod 2 is located at the inner side of the stand column 1 to rotate, and the two are connected and fixed through a bearing.

As shown in fig. 5, in this embodiment, an inner bushing 51 is provided at the bottom end of the spindle 5, the inner bushing 51 is connected to the spindle 5 by a fixing pin, and one end of the worm wheel 33 is connected to the inner bushing 51 by a flat key pin, that is, the worm wheel 33 and the spindle 5 are fixed relatively and rotate synchronously.

The top end of the transmission rod 2 is provided with a bevel joint 21, wherein the middle of the first drive bevel gear 62 is provided with a through hole, namely, the first drive bevel gear 62 is sleeved and fixed on a bevel structure to realize relative fixation with the transmission rod 2.

In this embodiment, a support plate 311 is preferably disposed at the connection between the first elbow pipe 31 and the second elbow pipe 32, and the worm wheel 33 is connected to the support plate 311 through a bearing.

As shown in fig. 3 and 5, the support plate 311 has a groove for accommodating a bearing, and the support plate 311 can limit the worm wheel 33 and support the end of the worm wheel 33, so that the worm wheel 33 can only perform a circumferential rotation motion, and particularly, an off-axis motion does not occur when a large force is applied.

The preferred junction of the first bending pipe 31 and the second bending pipe 32 in this embodiment is provided with a shaft hole 312, the end of the worm 34 is connected with the shaft hole 312 through a bearing, and the arrangement of the shaft hole 312 ensures the stability of the rotation process of the worm 34.

As shown in fig. 4 and 6, the driving device 6 includes a second drive bevel gear 36 and a second driven bevel gear 35, the second driven bevel gear 35 is connected to the bottom end of the transmission rod 2, the second drive bevel gear 36 is meshed with the second driven bevel gear 35, and the second drive bevel gear 36 is connected with a driving shaft 63.

The driving shaft 63 and the second driving bevel gear 36 are both rotatably connected to the upright 1, and a bevel gear housing 65 is further provided in the upright 1, the second driving bevel gear 36 and the second driven bevel gear 35 extend into the bevel gear housing 65, and the bevel gear housing 65 positions the two, wherein the second driven bevel gear 35 is fixedly connected with the bottom end of the transmission rod.

The drive shaft 63 is preferably connected to a swing arm 64 or motor in this embodiment.

During operation, the driving shaft 63 and the second driving bevel gear 36 are rotated by the swinging arm 64 or the motor, the second driven bevel gear 35 and the transmission rod transmit power to the first driving bevel gear 62 at the top end position, and the first driven bevel gear 61 drives the worm 34 to rotate at the turning mechanism 3, and the worm wheel 33 matched with the worm 34 performs speed reduction rotation, so that the slow rotation of the mandrel 5 is realized; if the umbrella rib 4 end is forced to rotate by external force, the worm wheel 33 can not reversely transfer power to the worm 34, namely, the combination of the worm wheel 33 and the worm 34 can prevent the spindle 5 from reversely transferring power to the transmission rod 2, so that the stability of the sunshade after opening is improved.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (5)

1. The utility model provides a rotatory open-close type sunshade umbrella's power transmission subassembly, includes drive arrangement, transfer line and turning mechanism, turning mechanism includes first bending pipe and second bending pipe, is equipped with dabber, its characterized in that on the first bending pipe: the bottom of dabber is provided with the worm wheel, is provided with the worm in the junction of first elbow and second elbow, worm and worm wheel mutually supporting are connected, the tip of worm is provided with first driven bevel gear, the top of transfer line is provided with first driving bevel gear, first driving bevel gear and first driven bevel gear meshing.

2. The power transmission assembly for a rotary opening and closing beach umbrella of claim 1, wherein: the connection part of the first bending pipe and the second bending pipe is provided with a supporting plate, and the worm wheel is connected to the supporting plate through a bearing.

3. The power transmission assembly of a rotary opening and closing beach umbrella of claim 2, wherein: the connecting part of the first bending pipe and the second bending pipe is provided with a shaft hole, and the end part of the worm is connected with the shaft hole through a bearing.

4. A power transmission assembly for a rotary opening and closing beach umbrella as claimed in any one of claims 1 to 3, wherein: the driving device comprises a second driving bevel gear and a second driven bevel gear, the second driven bevel gear is connected to the bottom end of the transmission rod, the second driving bevel gear is meshed with the second driven bevel gear, and the second driving bevel gear is connected with a driving shaft.

5. The power transmission assembly for a rotary opening and closing beach umbrella of claim 4, wherein: the driving shaft is connected with a swinging arm or a motor.