Umbrella column angle adjusting structure

Abstract

The utility model relates to the technical field of sunshade umbrellas, and discloses an umbrella column angle adjusting structure which comprises an umbrella base, a fixed supporting column, an umbrella column, a rotating shell, a worm gear and a worm, the fixed supporting column is fixedly arranged on the umbrella base, the umbrella column is rotationally connected with the fixed supporting column through the rotating shell, and the worm gear is arranged on the worm. The worm gear is coaxially and fixedly arranged at the upper end of the fixed supporting column, the worm gear and the worm are located in the rotating shell, the worm gear is meshed with the worm, the worm is in rotating fit with the rotating shell, one end of the worm is provided with an operation end, and the operation end is aligned to a butt joint hole in the umbrella column; the umbrella column angle adjusting structure solves the problems that an existing umbrella column is complex in rotating structure and high in assembly and maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of sunshades, and particularly relates to an umbrella column angle adjustment structure. Background Art

[0002] The umbrella bodies of existing sunshades are all installed on one side of the umbrella column. Therefore, the sunshade range is limited to one side of the umbrella column. Considering different usage requirements, when the sunshade range needs to be adjusted, the base needs to be moved as a whole. The base is often heavy, so it is extremely inconvenient to operate.

[0003] According to actual needs, there are some structural designs in the prior art that can conveniently rotate the umbrella rod. After retrieval, the Chinese utility model patent publication number is CN216923091U, and the patent name is a transmission component and a sunshade with a transmission component. Specifically, it includes a rotating shaft, a worm, a worm gear, a transmission shaft, a first umbrella wheel, and a second umbrella wheel. One end of the worm forms an input end, and the worm gear is sleeved outside the transmission shaft and meshes with the worm; the first umbrella wheel is arranged at the end of the transmission shaft; the second umbrella wheel is arranged at one end of the rotating shaft and meshes with the first umbrella wheel; the other end of the rotating shaft forms an output end; the axis of the worm is parallel to the axis of the transmission shaft, and the axis of the worm is perpendicular to the axis of the rotating shaft. In this design, the worm first conducts the torque to the worm gear, and then transmits the torque to the first umbrella wheel through the transmission shaft. The first umbrella wheel then converts the torque to the second umbrella wheel, thereby realizing the conversion from torque to rotation. There are problems such as relatively complex structural design, and it is more troublesome for product assembly, repair, and replacement. Considering from the perspectives of operation convenience, production cost, and later maintenance cost, the rotation structure of the sunshade umbrella rod still needs to be further improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an umbrella column angle adjustment structure to solve at least one of the above problems existing in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An umbrella column angle adjustment structure includes an umbrella base, a fixed support column, an umbrella column, a rotating housing, a worm gear, and a worm. The fixed support column is fixedly arranged on the umbrella base. The umbrella column is rotatably connected to the fixed support column through the rotating housing. The worm gear is coaxially and fixedly arranged at the upper end of the fixed support column. The worm gear and the worm are located inside the rotating housing. The worm gear meshes with the worm. The worm is rotatably matched with the rotating housing. One end of the worm has an operation end, and the operation end is aligned with the docking hole on the umbrella column.

[0007] In this technical solution, since the fixed support column is fixedly arranged on the umbrella base, the worm gear is coaxially and fixedly arranged at the upper end of the fixed support column, the worm gear meshes with the worm, and the worm is rotationally matched with the rotating housing. During specific operation, by inserting the driving end of the transmission tool into the docking hole and docking with the operating end of the worm, since the positions of the fixed support column and the worm gear remain unchanged and the worm gear meshes with the worm, when the worm is driven to rotate, the worm will perform a circumferential displacement around the worm gear. During this process, since the worm is installed on the rotating housing, the displacement of the worm around the worm gear also synchronously drives the rotating housing to rotate around the fixed support column. Since the umbrella column is rotationally connected to the fixed support column through the rotating housing, the umbrella column will also rotate under the drive of the rotating housing, thereby causing the umbrella body to rotate. That is to say, during the operation of the worm, the worm not only rotates relative to the rotating housing but also synchronously drives the rotating housing to rotate relative to the fixed support column. While the worm rotates itself, it also drives the rotating housing to rotate around the fixed support column through its circumferential displacement relative to the worm gear. This technical solution can arbitrarily adjust the rotation angle as needed, is convenient for the rotation operation of the umbrella column, has fewer transmission components, a simple structure, lower production and maintenance costs compared with the prior art, and the worm gear has a self-locking function, so there is no need to additionally set a locking device, and the rotation angle of the umbrella column can be adjusted conveniently and quickly.

[0008] Further, in order to improve the stability of the rotation of the umbrella column, a support ring is provided on the umbrella base, the lower end of the fixed support column passes through the support ring, an annular groove is provided at the upper end of the support ring, the groove wall of the annular groove is arc-shaped, several balls are provided in the annular groove, the lower end of the umbrella column is connected with a support, and an annular groove is provided at the lower end of the support and is matched with the annular groove, the groove wall of the annular groove is arc-shaped, and the balls are in rolling fit with the groove walls of both the upper annular groove and the lower annular groove.

[0009] Further, in order to facilitate the installation and positioning of the umbrella column, a plurality of clamping protrusions are provided at the upper end of the support, and strip-shaped grooves are provided on the outer side of the umbrella column and are docked with the clamping protrusions.

[0010] Further, in order to improve the smoothness of the rotation between the rotating housing and the fixed support column, the upper end and the lower end of the rotating housing are respectively rotationally connected to the fixed support column through an upper bearing and a lower bearing, and the worm gear is located between the upper bearing and the lower bearing.

[0011] Further, in order to facilitate the overall assembly and replacement of the worm gear and the worm, the rotating housing includes a first housing and a second housing that are relatively buckled, and the internal space formed by the buckling of the first housing and the second housing is a transmission space, and the worm gear and the worm are located in the transmission space.

[0012] Further, to improve the service life of the rotating housing and facilitate installation, the first housing and the second housing are respectively provided with a first mounting hole and a second mounting hole. A first bushing is provided in the first mounting hole, and a second bushing is provided in the second mounting hole. Both ends of the worm are rotatably fitted with the first bushing and the second bushing respectively.

[0013] Further, to more conveniently realize the driving operation of the worm, a square hole is provided on the operating end, and the square hole is aligned with the docking hole.

[0014] Further, to facilitate the operation of the worm, a hand rocker is further included. The operating end of the hand rocker is docked with the square hole to drive the worm.

[0015] Further, to improve the convenience of the fitting and installation between the umbrella column and the rotating housing, L-shaped steps are symmetrically provided on the first housing and the second housing. The L-shaped steps and the worm are respectively located on both sides of the worm gear. The L-shaped steps are in vertical sliding fit with the inner limiting protrusions of the umbrella column.

[0016] The beneficial effects of the present utility model are as follows: In this technical solution, since the fixed support column is fixedly arranged on the umbrella base, the worm gear is coaxially and fixedly arranged at the upper end of the fixed support column, the worm gear meshes with the worm, and the worm is rotatably fitted with the rotating housing. During specific operation, by inserting the driving end of the transmission tool into the docking hole and docking it with the operating end of the worm, since the positions of the fixed support column and the worm gear remain unchanged and the worm gear meshes with the worm, during the process of driving the worm to rotate, the worm will perform a circumferential displacement around the worm gear. During this process, since the worm is installed on the rotating housing, therefore, the displacement of the worm around the worm gear also synchronously drives the rotating housing to rotate around the fixed support column. Since the umbrella column is rotatably connected to the fixed support column through the rotating housing, the umbrella column will also rotate under the drive of the rotating housing, thereby causing the umbrella body to rotate. That is to say, during the operation of the worm, the worm not only rotates relative to the rotating housing but also synchronously drives the rotating housing to rotate relative to the fixed support column. While the worm rotates itself, it also drives the rotating housing to rotate around the fixed support column through its circumferential displacement relative to the worm gear. This technical solution can arbitrarily adjust the rotation angle as needed. The rotation operation of the umbrella column is convenient. Compared with the prior art, there are fewer transmission components, the structure is simple, the production and maintenance costs are both relatively low, and the worm gear has a self-locking function, so there is no need to additionally set a locking device, and the rotation angle of the umbrella column can be adjusted conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0019] Figure 3 The structural schematic diagram of the first perspective inside the umbrella pole of the present utility model;

[0020] Figure 4 The structural schematic diagram of the second perspective inside the umbrella pole of the present utility model;

[0021] Figure 5 The structural schematic diagram of the third perspective inside the umbrella pole of the present utility model;

[0022] Figure 6 is Figure 5 The partial enlarged view of the position A in

[0023] Figure 7 The structural schematic diagram of another perspective of the present utility model;

[0024] Figure 8 The structural schematic diagram of the lower end of the support of the present utility model;

[0025] In the figure: umbrella base 1; fixed support column 2; umbrella pole 3; strip-shaped groove 3.1; inner side limit projection 3.2; rotating shell 4; first shell 4.1; second shell 4.2; first mounting hole 4.3; second mounting hole 4.4; L-shaped step 4.5; worm gear 5; worm 6; operating end 7; upper bearing 8; lower bearing 9; support ring 10; lower annular groove 10.1; ball 11; support 12; upper annular groove 12.1; clamping projection 12.2; first shaft sleeve 13; second shaft sleeve 14; docking hole 15. Detailed implementation manners

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the present utility model in combination with the accompanying drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be noted here that the descriptions of these embodiments are used to help understand the present utility model, but do not constitute a limitation to the present utility model.

[0027] Embodiment 1:

[0028] Such as Figures 1-8As shown in the figure, this embodiment provides an umbrella pole angle adjustment structure, which includes an umbrella base 1, a fixed support column 2, an umbrella pole 3, a rotating housing 4, a worm gear 5 and a worm 6. The fixed support column 2 is fixedly arranged on the umbrella base 1. The umbrella pole 3 is rotatably connected to the fixed support column 2 through the rotating housing 4. The worm gear 5 is coaxially and fixedly arranged at the upper end of the fixed support column 2. The worm gear 5 and the worm 6 are located inside the rotating housing 4. The worm gear 5 meshes with the worm 6. The worm 6 is rotatably matched with the rotating housing 4. One end of the worm 6 has an operating end 7, and the operating end 7 is aligned with the docking hole 15 on the umbrella pole 3.

[0029] In this technical solution, since the fixed support column 2 is fixedly arranged on the umbrella base 1, the worm gear 5 is coaxially and fixedly arranged at the upper end of the fixed support column 2, the worm gear 5 meshes with the worm 6, and the worm 6 is rotatably matched with the rotating housing 4. During specific operation, by inserting the driving end of the transmission tool into the docking hole 15 and docking with the operating end 7 of the worm 6, since the positions of the fixed support column 2 and the worm gear 5 remain unchanged and the worm gear 5 meshes with the worm 6, during the process of driving the worm 6 to rotate, the worm 6 will perform a circumferential displacement around the worm gear 5. During this process, since the worm 6 is installed on the rotating housing 4, therefore, the displacement of the worm 6 around the worm gear 5 also synchronously drives the rotating housing 4 to rotate around the fixed support column 2. Since the umbrella pole 3 is rotatably connected to the fixed support column 2 through the rotating housing 4, the umbrella pole 3 will also rotate under the drive of the rotating housing 4, thereby causing the umbrella body to rotate. That is to say, during the operation of the worm 6, the worm 6 not only rotates relative to the rotating housing 4, but also synchronously drives the rotating housing 4 to rotate relative to the fixed support column 2. While the worm 6 rotates itself, it also drives the rotating housing 4 to rotate around the fixed support column 2 through the circumferential displacement relative to the worm gear 5. This technical solution can arbitrarily adjust the rotation angle as needed. The rotation operation of the umbrella pole 3 is convenient. Compared with the prior art, there are fewer transmission components, the structure is simple, the production and maintenance costs are relatively low, and the cooperation between the worm gear 5 and the worm 6 has a self-locking function, so there is no need to additionally set a locking device, and the rotation angle of the umbrella pole 3 can be adjusted conveniently and quickly.

[0030] Embodiment 2:

[0031] This embodiment is optimized on the basis of the above Embodiment 1.

[0032] In order to improve the stability of the rotation of the umbrella pole 3, a support ring 10 is provided on the umbrella base 1. The lower end of the fixed support column 2 passes through the support ring 10 and is fixedly connected to the umbrella base 1. An upper annular groove 10.1 is provided at the upper end of the support ring 10. The groove wall of the upper annular groove 10.1 is arc-shaped. A number of balls 11 are provided in the upper annular groove 10.1. The lower end of the umbrella pole 3 is connected with a support 12. The lower end of the support 12 is provided with an upper annular groove 12.1 that cooperates with the upper annular groove 10.1. The groove wall of the upper annular groove 12.1 is arc-shaped. The balls 11 are in rolling cooperation with the groove walls of both the upper annular groove 12.1 and the upper annular groove 10.1.

[0033] Example 3:

[0034] This example is an optimization based on the above Example 2.

[0035] To facilitate the installation and positioning of the umbrella post 3, a plurality of clamping protrusions 12.2 are provided at the upper end of the support 12, and a strip-shaped groove 3.1 for docking with the clamping protrusions 12.2 is provided on the outer side of the umbrella post 3.

[0036] Example 4:

[0037] This example is an optimization based on the above Example 1.

[0038] To improve the smoothness of the rotation between the rotating housing 4 and the fixed support column 2, the upper end and the lower end of the rotating housing 4 are respectively rotationally connected to the fixed support column 2 through an upper bearing 8 and a lower bearing 9, and the worm gear 5 is located between the upper bearing 8 and the lower bearing 9.

[0039] Example 5:

[0040] This example is an optimization based on the above Example 1.

[0041] To facilitate the overall assembly and replacement of the worm gear 5 and the worm 6, the rotating housing 4 includes a first housing 4.1 and a second housing 4.2 that are relatively snapped together. The internal space formed by the snap-together of the first housing 4.1 and the second housing 4.2 is a transmission space, and the worm gear 5 and the worm 6 are located in the transmission space.

[0042] Example 6:

[0043] This example is an optimization based on the above Example 5.

[0044] To improve the service life of the rotating housing 4 and facilitate installation, a first mounting hole 4.3 and a second mounting hole 4.4 are respectively provided on the first housing 4.1 and the second housing 4.2. A first bushing 13 is provided in the first mounting hole 4.3, a second bushing 14 is provided in the second mounting hole 4.4, and both ends of the worm 6 are rotatably fitted with the first bushing 13 and the second bushing 14 respectively.

[0045] Example 7:

[0046] This example is an optimization based on the above Example 1.

[0047] To more conveniently drive the worm 6, a square hole is provided on the operating end 7, and the square hole is aligned with the docking hole 15.

[0048] Example 8:

[0049] This example is an optimization based on the above Example 1.

[0050] To facilitate the operation of the worm 6, a hand rocker is further included, and the operating end of the hand rocker is docked with the square hole to drive the worm 6.

[0051] Embodiment 9:

[0052] This embodiment is optimized on the basis of the above Embodiment 5.

[0053] To improve the convenience of the fitting and installation between the umbrella column 3 and the rotating housing 4, L-shaped steps 4.5 are symmetrically arranged on the first housing 4.1 and the second housing 4.2. The L-shaped steps 4.5 and the worm 6 are respectively located on both sides of the worm gear 5, and the L-shaped steps 4.5 are in vertical sliding fit with the inner limiting protrusion 3.2 of the umbrella column 3.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An umbrella column angle adjustment structure, characterized in that: It includes an umbrella base, a fixed support column, an umbrella column, a rotating shell, a worm wheel and a worm. The fixed support column is fixedly arranged on the umbrella base, and the umbrella column is rotatably connected to the fixed support column through the rotating shell. The worm wheel is coaxially fixedly arranged on the upper end of the fixed support column. The worm wheel and the worm are located in the rotating shell. The worm wheel is meshed with the worm, and the worm is rotatably matched with the rotating shell. One end of the worm has an operating end, and the operating end is aligned with the docking hole on the umbrella column.

2. The umbrella column angle adjustment structure according to claim 1, characterized in that: A support ring is provided on the umbrella seat, the lower end of the fixed support column passes through the support ring, the upper end of the support ring is provided with a lower annular groove, the groove wall of the lower annular groove is arc-shaped, and a plurality of balls are provided in the lower annular groove. The lower end of the umbrella column is connected to a support, and the lower end of the support is provided with an upper annular groove that cooperates with the lower annular groove, the groove wall of the upper annular groove is arc-shaped, and the balls roll with the groove walls of the upper annular groove and the lower annular groove at the same time.

3. The umbrella column angle adjustment structure according to claim 2, characterized in that: A plurality of clamping protrusions are arranged on the upper end of the support, and a strip groove docking with the clamping protrusions is arranged on the outer side of the umbrella column.

4. The umbrella column angle adjustment structure according to claim 1, characterized in that: The upper end and the lower end of the rotating shell are rotatably connected to the fixed support column through an upper bearing and a lower bearing respectively, and the worm gear is located between the upper bearing and the lower bearing.

5. The umbrella column angle adjustment structure according to claim 1, characterized in that: The rotating housing comprises a first housing and a second housing that are buckled relative to each other, the inner space where the first housing and the second housing are buckled together is a transmission space, and the worm wheel and the worm are located in the transmission space.

6. The umbrella column angle adjustment structure according to claim 5, characterized in that: The first shell and the second shell are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole is provided with a first shaft sleeve, the second mounting hole is provided with a second shaft sleeve, and two ends of the worm are respectively rotatably matched with the first shaft sleeve and the second shaft sleeve.

7. The umbrella column angle adjustment structure according to claim 1, characterized in that: The operating end is provided with a square hole, and the square hole is aligned with the docking hole.

8. The umbrella column angle adjustment structure according to claim 1, characterized in that: It also includes a hand crank, the operating end of which is connected to the square hole to drive the worm.

9. The umbrella column angle adjustment structure according to claim 5, characterized in that: The first shell and the second shell are symmetrically provided with L-shaped steps, the L-shaped step and the worm are respectively located on both sides of the worm wheel, and the L-shaped step is vertically slidably matched with the inner limiting protrusion of the umbrella column.

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