A rotating umbrella

Abstract

This invention discloses a rotatable umbrella, comprising a first connecting rod, a second connecting rod, and a rotating shaft. The first and second connecting rods are connected by the rotating shaft, and the second connecting rod is sleeved on the rotating shaft and movable along the axial direction of the rotating shaft. The first and second connecting rods have two states: a first state in which the second connecting rod is sleeved on the first connecting rod and rotates integrally with the first connecting rod in the circumferential direction; and a second state in which the second connecting rod is detached from the first connecting rod and can rotate relative to the first connecting rod in the circumferential direction. In the first state, the umbrella is a regular umbrella and cannot rotate; in the second state, it is a rotatable umbrella, reducing wind resistance and enhancing its visual appeal and entertainment value. The umbrella can switch between the two modes, increasing its versatility.

Description

Technical Field

[0001] This invention belongs to the field of umbrellas, and more specifically, relates to a rotatable umbrella. Background Technology

[0002] An umbrella consists of a handle, shaft, canopy, and other auxiliary parts. The handle is fixed to the lower end of the shaft and cannot rotate. To rotate the umbrella, one must twist the handle or shaft, which is inconvenient. Furthermore, in windy conditions, the wind creates a torque that acts between the handle and the hand. The reaction force of this torque makes it feel like one must grip the handle tightly to hold the umbrella securely, further hindering its use.

[0003] Existing rotating umbrellas achieve rotation by installing a rotating mechanism on the umbrella shaft, a bearing at the connection between the umbrella handle and the umbrella shaft, and a turntable on the umbrella ribs. However, existing rotating umbrellas only have a rotating mode and will continue to rotate even when it is not suitable to rotate, and it is not possible to switch between a regular umbrella and a rotating umbrella.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a rotatable umbrella that can switch between a regular umbrella and a rotatable umbrella. In the rotatable state, it can rotate with the wind, reducing the resistance to wind when moving forward and increasing the area that is not wetted by rain. When it is not necessary to rotate, it can switch to the regular umbrella mode.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is to provide a rotatable umbrella, including a first connecting rod, a second connecting rod and a rotating shaft;

[0007] The first connecting rod and the second connecting rod are connected by a rotating shaft. The second connecting rod is sleeved on the rotating shaft and is movable along the axial direction of the rotating shaft. The first connecting rod and the second connecting rod have two states:

[0008] In the first state, the second connecting rod is sleeved on the first connecting rod and rotates circumferentially together with the first connecting rod.

[0009] The second state is that the second connecting rod is detached from the first connecting rod and can rotate relative to the first connecting rod in the circumferential direction.

[0010] The first connecting rod and the second connecting rod of the present invention are connected by a rotating shaft. The second connecting rod has two states: reciprocating along the axial direction of the rotating shaft. When the second connecting rod is sleeved on the first connecting rod and rotates circumferentially with the first connecting rod, the umbrella cannot rotate, which is the normal umbrella mode. When the second connecting rod is detached from the first connecting rod and can rotate relative to the first connecting rod circumferentially, the relative rotation between the first and second connecting rods allows the umbrella to rotate, increasing the area that is not wetted by rain, reducing wind resistance while walking, and enhancing its visual appeal and entertainment value. The umbrella can switch between the two modes, increasing its versatility.

[0011] Furthermore, the first connecting rod is sleeved on one end of the rotating shaft and has a first snap-fit ​​portion extending toward the other end;

[0012] The second connecting rod is sleeved on one end of the rotating shaft connection and has a second locking part that matches the first locking part. This is used for the second connecting rod to reciprocate axially along the first locking part, or to be locked and fixed circumferentially on the first locking part.

[0013] Furthermore, the first snap-fit ​​portion is a snap-fit ​​groove recessed inward on the outer wall of the first connecting rod;

[0014] The second snap-fit ​​part is a protruding rib provided on the inner peripheral wall of the second connecting rod.

[0015] Furthermore, it also includes,

[0016] A sleeve is installed inside one end of the second connecting rod, with one end of the sleeve located between the second connecting rod and the rotating shaft, and the other end of the sleeve extending toward the other end of the second connecting rod;

[0017] A control switch, installed on the other end of the sleeve, is used to fix the sleeve at any of the multiple positions of the second connecting rod.

[0018] Furthermore, the second connecting rod has a plurality of first through holes along the axial direction on its peripheral wall, and the other end of the sleeve has a second through hole on its peripheral wall.

[0019] The control switch is a spring-loaded contact switch, including:

[0020] The protrusions are installed in the first through hole and the second through hole to fix the second connecting rod and the sleeve;

[0021] An elastic body, connected to the protrusion, is installed inside the other end of the sleeve and is used to deform under pressure to move the protrusion.

[0022] Furthermore, the elastic body is a U-shaped elastic body, and the protrusions are disposed on the outer peripheral wall of the elastic body.

[0023] Furthermore, it also includes,

[0024] A first shaft housing is sleeved between the rotating shaft and the first connecting rod, and is fixedly connected to the first connecting rod and axially fixed to the rotating shaft;

[0025] The second shaft housing is sleeved between one end of the rotating shaft and the sleeve, fixedly connected to the sleeve, and axially fixed to the rotating shaft;

[0026] There is a gap between the relative positions of the first housing and the second housing.

[0027] Furthermore, it also includes,

[0028] The umbrella canopy has a rotating air belt on its outer surface to assist in the rotation of the umbrella canopy.

[0029] Furthermore, the rotating air belt includes a plurality of air bags arranged circumferentially along the edge of the outer surface of the umbrella, and the openings of the plurality of air bags are arranged either clockwise or counterclockwise.

[0030] Furthermore, the rotating air belt includes a plurality of air-collecting plates arranged circumferentially along the outer surface of the umbrella surface, and the air-collecting plates are inclined on the umbrella surface in a clockwise or counterclockwise direction.

[0031] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0032] (1) The first connecting rod and the second connecting rod of the present invention are connected by a rotating shaft. The second connecting rod has two states of reciprocating along the axial direction of the rotating shaft. When the second connecting rod is sleeved on the first connecting rod and rotates together with the first connecting rod in the circumferential direction, the umbrella cannot rotate and is in the ordinary umbrella mode. When the second connecting rod is detached from the first connecting rod and can rotate relative to the first connecting rod in the circumferential direction, the umbrella can rotate, which increases the area that is not wetted by rain, reduces the resistance to wind when moving forward, and enhances the visual appeal and entertainment value. The umbrella can switch between the two modes, increasing the applicability of the umbrella.

[0033] (2) By setting a sleeve inside the second connecting rod and setting a control switch inside the sleeve, the sleeve can be fixed at any position of multiple positions of the second connecting rod through the control switch, so as to realize the second connecting rod reciprocating and fixing along the axis on the first connecting rod, and to realize the switching control of ordinary umbrella and rotatable umbrella.

[0034] (3) Wind bags in the same direction are set on the umbrella surface. By utilizing the area difference between the wind-receiving side and the leeward side of the wind bags, a rotational torque is generated, which makes the umbrella rotate.

[0035] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0036] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0037] Figure 1 This is a schematic diagram of the umbrella rotation mode of the present invention;

[0038] Figure 2 This is a schematic diagram of the non-rotating umbrella mode of the present invention;

[0039] Figure 3 This is the present invention. Figure 1 Enlarged view of point A in the middle;

[0040] Figure 4 This is the present invention. Figure 1 Cross-sectional view at point A in the middle;

[0041] Figure 5 This is the present invention. Figure 2 Enlarged view of point B in the middle;

[0042] Figure 6 This is the present invention. Figure 2 Cross-sectional view at point B;

[0043] Figure 7 This is a schematic diagram of a rotating air belt according to the present invention.

[0044] In the figure: 1. First connecting rod; 11. First snap-fit ​​part; 12. First boss; 2. Second connecting rod; 21. Second snap-fit ​​part; 22. First through hole; 3. Rotating shaft; 31. First annular groove; 32. Second annular groove; 4. Sleeve; 41. Second through hole; 42. Second boss; 5. Control switch; 51. Protrusion; 52. Elastic body; 6. First shaft housing; 61. First annular protrusion; 62. First slot; 7. Second shaft housing; 71. Second annular protrusion; 72. Second slot; 8. Umbrella rib; 9. Umbrella surface; 91. Rotating air belt; 911. Air bag.

[0045] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] like Figures 1 to 7 As shown, the rotatable umbrella of the present invention includes a first connecting rod 1, a second connecting rod 2, and a rotating shaft 3.

[0050] The first connecting rod 1 and the second connecting rod 2 are connected by a rotating shaft 3. The second connecting rod 2 is sleeved on the rotating shaft 3 and is movable along the axial direction of the rotating shaft 3. It has two states: the first state is that the second connecting rod 2 is sleeved on the first connecting rod 1 and rotates together with the first connecting rod 1 in the circumferential direction; the second state is that the second connecting rod 2 is detached from the first connecting rod 1 and can rotate relative to the first connecting rod 1 in the circumferential direction.

[0051] One end of the first connecting rod 1 is sleeved on one end of the rotating shaft 3, and one end of the second connecting rod 2 is sleeved on the other end of the rotating shaft 3. When the second connecting rod 2 rotates, the first connecting rod 1 does not rotate with the rotation of the second connecting rod 2, or when the first connecting rod 1 rotates, the second connecting rod 2 does not rotate with the rotation of the first connecting rod 1. The umbrella also includes umbrella ribs 8 and an umbrella surface 9 disposed on the umbrella ribs 8. The umbrella ribs 8 are installed on the first connecting rod 1 or the second connecting rod 2, thus realizing a rotatable umbrella.

[0052] The first connecting rod 1 and the second connecting rod 2 of the present invention are connected by a rotating shaft 3. The second connecting rod 2 has two states of reciprocating movement along the axial direction of the rotating shaft 3. When the second connecting rod 2 is sleeved on the first connecting rod 1 and rotates together with the first connecting rod 1 in the circumferential direction, the umbrella cannot rotate, which is the ordinary umbrella mode. When the second connecting rod 2 is detached from the first connecting rod 1 and can rotate relative to the first connecting rod 1 in the circumferential direction, the relative rotation between the first connecting rod 1 and the second connecting rod 2 is possible, which is a rotatable umbrella. This increases the area that is not wetted by rain, reduces the resistance to wind when walking, and enhances the appearance and entertainment value. The umbrella can switch between the two modes, increasing the applicability of the umbrella.

[0053] The first connecting rod 1 and the second connecting rod 2 can be telescopic rods that can extend or retract. The opposite ends of the first connecting rod 1 and the second connecting rod 2 are tubular.

[0054] like Figure 3 and Figure 5 As shown, the first connecting rod 1 is sleeved on one end of the rotating shaft 3 and has a first snap-fit ​​part 11 extending towards the other end.

[0055] The second connecting rod 2 is sleeved on one end of the rotating shaft 3 and has a second locking part 21 that matches the first locking part 11. The second connecting rod 2 is used to reciprocate along the first locking part 11 in the axial direction, or to lock and fix it on the first locking part 11 in the circumferential direction.

[0056] Preferably, the first connecting rod 1 and the second connecting rod 2 are tubular. The cross-sections of the first connecting rod 1 and the second connecting rod 2 can be matched circles or polygons. Preferably, the first locking portion 11 and the second locking portion 21 extend along the axial direction of the second connecting rod 2. The lengths of the first locking portion 11 and the second locking portion 21 are matched.

[0057] The first locking part 11 is a locking groove recessed inward on the outer wall of the first connecting rod 1, and the second locking part 21 is a protruding rib on the inner circumferential wall of the second connecting rod 2. When the protruding rib on the second connecting rod 2 moves axially toward the first connecting rod 1 and gradually fits onto the locking groove, the protruding rib and the locking groove are fixed in the circumferential direction. The second connecting rod 2 and the first connecting rod 1 rotate together, and the umbrella switches to normal mode and cannot rotate.

[0058] The rib is formed by protruding inward from the outer wall of the second connecting rod 2.

[0059] Preferably, the axial length of the snap-fit ​​groove is greater than or equal to the length of the other end of the rotating shaft 3 installed inside the first connecting rod 1.

[0060] like Figure 4 and Figure 6 As shown, the rotatable umbrella also includes a sleeve 4 and a control switch 5.

[0061] The sleeve 4 is installed inside one end of the second connecting rod 2, with one end located between the second connecting rod 2 and the rotating shaft 3. The other end of the sleeve 4 extends toward the other end of the second connecting rod 2. The control switch 5 is installed on the other end of the sleeve 4 and is used to fix the sleeve 4 at any of the multiple positions on the second connecting rod 2.

[0062] The present invention provides a sleeve 4 inside the second connecting rod 2 and a control switch 5 inside the sleeve 4. The sleeve 4 can be fixed at any position of multiple locations on the second connecting rod 2 by means of the control switch 5, so that the second connecting rod 2 can reciprocate and be fixed on the first connecting rod 1 along the axial direction, and can realize the switching control between ordinary umbrella and rotatable umbrella.

[0063] Specifically, the second connecting rod 2 has a plurality of first through holes 22 along the axial direction on its peripheral wall, and the sleeve 4 has a second through hole 41 on its peripheral wall at the other end. The control switch 5 can fix the second through hole 41 of the sleeve 4 and any one of the first through holes 22 of the second connecting rod 2 together. Preferably, the end of the sleeve 4 away from the first connecting rod 1 matches the inner wall of the first connecting rod 1. The second connecting rod 2 has two first through holes 22.

[0064] The maximum distance between the plurality of first through holes 22 and the first locking part 11 is greater than the distance between the second through hole 41 and the first locking part 11; the minimum distance between the plurality of first through holes 22 and the first locking part 11 is less than or equal to the distance between the second through hole 41 and the first locking part 11.

[0065] The control switch 5 is a spring-loaded switch with a protrusion 51, comprising an elastic body 52 and a protrusion 51.

[0066] The protrusion 51 is installed in the first through hole 22 and the second through hole 41 to fix the second connecting rod 2 and the sleeve 4. The elastic body 52 is connected to the protrusion 51 and is installed inside the other end of the sleeve 4, so as to deform and drive the protrusion 51 to move when compressed. The protrusion 51 is inverted U-shaped and protrudes from the outer peripheral wall of the elastic body 52. ​​The opening of the U-shaped elastic body 52 faces the other end of the first connecting rod 1.

[0067] A preferred embodiment is that the elastic body 52 is a U-shaped elastic body, with its outer peripheral wall lower than that of the sleeve 4. The protrusion 51 protrudes from the outer peripheral wall of the elastic body 52. ​​The control switch 5 is a plastic or metal component, and the protrusion 51 is integral with the elastic body 52 or formed by stamping from the inner peripheral wall of the elastic body 52 outwards. When the peripheral wall of the U-shaped elastic body is subjected to an inward compressive force, it deforms and moves inwards, causing the protrusion 51 to move inwards; after the force disappears, the U-shaped elastic body recovers its deformation and moves from the inside outwards.

[0068] When the second connecting rod 2 is sleeved and fixed on the first connecting rod 1, the second locking part 21 is fixedly locked on the first locking part 11 in the circumferential direction, and the second connecting rod 2 and the first connecting rod 1 rotate together. At this time, it is in the normal umbrella mode.

[0069] When the umbrella needs to be switched to a rotatable umbrella mode, press the protrusion 51 inward to compress and deform the elastic body 52 inward, causing the protrusion 51 to disengage from the current first through hole 22 and enter the sleeve 4. At this time, press the protrusion 51 and move the second connecting rod 2 axially away from the first connecting rod 1, so that the second locking part 21 and the first locking part 11 disengage and are fixed in the circumferential direction. Then continue to move, and install the protrusion 51 in the first through hole 22 where the second connecting rod 2 disengages and is fixed in the circumferential direction. At this time, the rotatable umbrella mode is switched.

[0070] If you need to switch back to the normal umbrella mode, press the protrusion 51 into the sleeve 4, move the second connecting rod 2 axially toward the first connecting rod 1, so that the second locking part 21 and the first locking part 11 are locked in the circumferential direction, and then install the protrusion 51 in the first through hole 22 in the circumferential locking state of the second connecting rod 2.

[0071] The rotatable umbrella also includes a first shaft housing 6 and a second shaft housing 7.

[0072] The first shaft housing 6 is sleeved between the rotating shaft 3 and the first connecting rod 1, and is fixedly connected to the first connecting rod 1. The first shaft housing 6 is axially fixed to the rotating shaft 3. One end of the rotating shaft 3 is circumferentially rotatable and axially fixedly installed inside the first shaft housing 6.

[0073] The second shaft housing 7 is sleeved between one end of the rotating shaft 3 and the sleeve 4, and is fixedly connected to the sleeve 4. The second shaft housing 7 is axially fixed to the rotating shaft 3. The other end of the rotating shaft 3 is circumferentially rotatable and is axially fixedly installed inside the second shaft housing 7.

[0074] There is a gap between the opposing positions of the first shaft housing 6 and the second shaft housing 7.

[0075] The present invention provides a first shaft housing 6 and a second shaft housing 7 respectively fitted onto both ends of the rotating shaft 3, with a gap between the relative positions of the first shaft housing 6 and the second shaft housing 7. This avoids wear on the other end caused by the rotation of either the first connecting rod 1 or the second connecting rod 2 at both ends of the rotating shaft 3 when the umbrella rotates, thus improving the smoothness of rotation.

[0076] Preferably, the first shaft housing 6 and the second shaft housing 7 are bearing seats.

[0077] Furthermore, the inner peripheral wall of the first shaft housing 6 is provided with a first annular protrusion 61, and one end of the rotating shaft 3 is provided with a matching first annular groove 31. The first annular protrusion 61 is installed in the first annular groove 31 and can rotate axially along the first annular groove 31. Preferably, the first shaft housing 6 is a bushing structure, which is sleeved on one end of the rotating shaft 3 to fix the rotating shaft 3 axially.

[0078] The second shaft housing 7 has a second annular protrusion 71 on its inner peripheral wall, and a matching second annular groove 32 on the other end of the rotating shaft 3. The second annular protrusion 71 is installed in the second annular groove 32 and can rotate axially along the first annular groove 31. Preferably, the second shaft housing 7 is a bushing structure, which is sleeved on the other end of the rotating shaft 3 to fix the rotating shaft 3 axially.

[0079] The outer peripheral wall of the first shaft housing 6 is provided with a first slot 62, and the inner wall of the first connecting rod 1 is provided with a matching first boss 12. The first boss 12 is engaged in the first slot 62. By engaging the first boss 12 on the first connecting rod 1 in the first slot 62, the first shaft housing 6 is fixed on the first connecting rod 1.

[0080] The second shaft housing 7 has a second groove 72 on its outer peripheral wall and a matching second boss 42 on its inner wall. The second boss 42 is engaged in the second groove 72. By engaging the second boss 42 on the sleeve 4 in the second groove 72, the second shaft housing 7 is fixed on the sleeve 4.

[0081] The rotatable umbrella also includes umbrella ribs 8.

[0082] The umbrella rib 8 is installed on the first connecting rod 1 or the second connecting rod 2.

[0083] Preferably, the umbrella rib 8 is connected to the second connecting rod 2.

[0084] The umbrella also includes a handle, a push-pull switch, an umbrella cap, and a fixing sleeve. Preferably, the umbrella ribs 8 are mounted on the second connecting rod 2. The handle is mounted on the lower end of the first connecting rod 1. The umbrella cap is mounted in the end face of the upper end of the second connecting rod 2. The push-pull switch is sleeved on the second connecting rod 2 and connected to the umbrella ribs 8, used to open or close the umbrella. The fixing sleeve is sleeved on the second connecting rod 2 and located between the umbrella cap and the push-pull switch. The umbrella may be a foldable umbrella.

[0085] like Figure 1 and Figure 7 As shown, the umbrella also includes an umbrella canopy 9, and a rotating air belt 91 is provided on the outer surface of the umbrella canopy 9 to assist the rotation of the umbrella canopy 9. The rotating air belt 91 can be a pocket type or a blade type, etc., and its main function is to use wind power to accelerate the rotation of the umbrella canopy 9. The umbrella canopy 9 is mounted on the umbrella ribs 8.

[0086] In one embodiment, the rotating air belt 91 includes a plurality of air bags 911 arranged circumferentially along the edge of the outer surface of the umbrella 9. The openings of the air bags 911 are all arranged in a clockwise direction or in a counterclockwise direction. The openings of the air bags 911 all face the same side, and the rotating air belt 91 is formed by partially overlapping the air bags 911. When the air bags 911 are arranged in a clockwise or counterclockwise direction, the opening of the next air bag 911 overlaps the bottom of the previous air bag 911.

[0087] The wind bag 911 is not limited to the edge of the outer surface of the umbrella 9. In other locations on the outer surface, such as the umbrella ribs and the middle of the umbrella, the difference in area between the leeward and windward sides will also help generate a rotational torque.

[0088] Another embodiment is that the rotating air belt includes a plurality of air-collecting plates (not shown in the figure) arranged circumferentially along the outer surface of the umbrella surface, the air-collecting plates being inclined in a clockwise or counterclockwise direction on the umbrella surface. The plurality of air-collecting plates are inclined in the same direction.

[0089] Preferably, the air-collecting plates are inclined clockwise or counterclockwise from the upper part to the lower part of the umbrella surface. The structure of the air-collecting plates is the same as that of fan or windmill blades. The air-collecting plates are arranged symmetrically about the umbrella cap.

[0090] When the umbrella is rotatable, when the wind blows onto the umbrella surface, the wind is blown in one direction on the surface of the wind-collecting plate, thereby changing the direction of the passing wind. This gives the wind a directional force, and the wind also gives the wind-collecting plate a force in the opposite direction. Since the wind-collecting plate is fixed to the umbrella surface, and the umbrella surface is rotatable relative to the handle, the umbrella surface rotates.

[0091] Alternatively, several wind bags 911 and several wind-collecting plates may be provided on the umbrella surface 9.

[0092] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rotatable umbrella, characterized in that: Includes a first connecting rod, a second connecting rod, and a rotating shaft; The first connecting rod and the second connecting rod are connected by a rotating shaft. The second connecting rod is sleeved on the rotating shaft and is movable along the axial direction of the rotating shaft. The first connecting rod and the second connecting rod have two states: In the first state, the second connecting rod is sleeved on the first connecting rod and rotates circumferentially together with the first connecting rod. The second state is that the second connecting rod is detached from the first connecting rod and can rotate relative to the first connecting rod in the circumferential direction. It also includes, A sleeve is installed inside one end of the second connecting rod, with one end of the sleeve located between the second connecting rod and the rotating shaft, and the other end of the sleeve extending toward the other end of the second connecting rod; A control switch, installed on the other end of the sleeve, is used to fix the sleeve at any of the multiple positions of the second connecting rod; A first shaft housing is sleeved between the rotating shaft and the first connecting rod, fixedly connected to the first connecting rod, and axially fixed to the rotating shaft. One end of the rotating shaft is circumferentially rotatable and axially fixedly installed inside the first shaft housing. The second shaft housing is sleeved between one end of the rotating shaft and the sleeve, fixedly connected to the sleeve, and axially fixed to the rotating shaft. The other end of the rotating shaft is circumferentially rotatable and axially fixedly installed inside the second shaft housing. There is a gap between the relative positions of the first housing and the second housing.

2. A rotatable umbrella according to claim 1, characterized in that: The first connecting rod is sleeved on one end of the rotating shaft and has a first snap-fit ​​portion extending toward the other end; The second connecting rod is sleeved on one end of the rotating shaft connection and has a second locking part that matches the first locking part. This is used for the second connecting rod to reciprocate axially along the first locking part, or to be locked and fixed circumferentially on the first locking part.

3. A rotatable umbrella according to claim 2, characterized in that: The first snap-fit ​​part is a snap-fit ​​groove recessed inward on the outer wall of the first connecting rod; The second snap-fit ​​part is a protruding rib provided on the inner peripheral wall of the second connecting rod.

4. A rotatable umbrella according to any one of claims 1-3, characterized in that: The second connecting rod has a plurality of first through holes along the axial direction on its peripheral wall, and the other end of the sleeve has a second through hole on its peripheral wall. The control switch is a spring-loaded contact switch, including: The protrusions are installed in the first through hole and the second through hole to fix the second connecting rod and the sleeve; An elastic body, connected to the protrusion, is installed inside the other end of the sleeve and is used to deform under pressure to move the protrusion.

5. A rotatable umbrella according to claim 4, characterized in that: The elastic body is a U-shaped elastic body, and the protrusions are disposed on the outer peripheral wall of the elastic body.

6. A rotatable umbrella according to claim 1, characterized in that: It also includes an umbrella canopy, the outer surface of which is provided with a rotating air belt to assist the rotation of the umbrella canopy.

7. A rotatable umbrella according to claim 6, characterized in that: The rotating air belt includes a plurality of air bags arranged circumferentially along the edge of the outer surface of the umbrella, and the openings of the plurality of air bags are arranged either clockwise or counterclockwise.

8. A rotatable umbrella according to any one of claims 6-7, characterized in that: The rotating air belt includes a plurality of air-collecting plates arranged circumferentially along the outer surface of the umbrella surface, and the air-collecting plates are inclined on the umbrella surface in a clockwise or counterclockwise direction.

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