A rotary umbrella

Abstract

The invention relates to a kind of umbrella, namely a kind of winding umbrella rib, which is wound on a cylinder driven by motor, characterized in that the winding umbrella rib comprises two pieces of concave strip-shaped material, the two concaves are opposite, buckling arrangement, the cross section is like a date pit, one end of the first piece is connected with the cylinder driven by motor, the two ends of the second piece are flat trapezoidal shape and are bent inward to the concave, one end of the second piece is connected with the end of the first piece connected with the cylinder, a metal mesh protective cover is sleeved on the outside of the winding umbrella rib, and a retractable protective sleeve is sleeved on the outside of the metal mesh protective cover. Its beneficial effects are: motor-driven, easy to open and close, small in size, high in strength, good in ventilation and heat dissipation, simple in structure, beautiful and fashionable, easy to operate, and walk with the vehicle, thus having good market prospect.

Description

Technical Field

[0001] This invention relates to an umbrella, specifically a spiral umbrella rib. Background Technology

[0002] An umbrella is a daily necessity, primarily used to shield from sunlight and rain. It provides shade and protection from rain and snow. The umbrella ribs greatly influence the umbrella's stability. However, existing umbrella rib structures are complex, typically using straight rods connected by traditional hinges or pins. This structure supports a relatively small canopy, making these umbrellas mainly used for travel and providing shade and rain protection. Supporting a larger canopy would require more complex hinge or pin structures, resulting in lower strength and a larger volume when closed.

[0003] Currently, more and more cars are entering people's homes, becoming an indispensable means of transportation. In summer, under the scorching sun, the temperature inside a car can rise to 60 or 70 degrees Celsius, making it difficult for people to enter immediately. High temperatures also accelerate the aging of interior decoration materials. To solve this problem, people have developed various simple garages and sunshades. However, most sunshades, due to insufficient support from the ribs, essentially become car covers. During opening and closing, the umbrella surface rubs against the car's surface, and because the umbrella surface is in close contact with the car's surface, ventilation is poor, and heat is easily conducted into the car, failing to cool the interior. Some sunshades, while providing support, have thin ribs, resulting in poor wind resistance, and when closed, the umbrella is too large to move with the car. Summary of the Invention

[0004] The main purpose of this invention is to solve the existing problems caused by the low supporting force of the umbrella ribs. This objective is achieved by the following technical solution: designing a spiral umbrella rib, which is wound around a cylinder driven to rotate by an electric motor. The spiral umbrella rib is characterized in that it comprises two concave nipple-shaped materials, A and B, with the two concave surfaces facing each other and fastened together.

[0005] One end of the first piece is connected to the cylinder, and both ends of the second piece are in the shape of a straight trapezoid and bend towards the concave side. One end of the second piece is connected to the first piece at the end where the first piece is connected to the cylinder, or one end of the first piece and the second piece are connected to the cylinder (2).

[0006] The spiral umbrella rib has a jujube-shaped, rhomboid, triangular, or arc-shaped cross section, or has a straight or reverse-bent thin plate in the vertical direction within the rhomboid or jujube-shaped cross section; the concave noodle-shaped material of sheet A and / or sheet B has a circular arc surface or is formed by bending a plane; sheet B is a plane or a straight surface with reverse bending.

[0007] The aforementioned plate includes a first section and a second section. The first section is located on the side of the cylindrical connection, and the second section is located on the end side. The cross-section of the first section is arc-shaped, and the cross-section of the second section is a straight surface or a folded surface with forward and reverse bends.

[0008] The connection method between plate A and the cylinder is hinge, welding or riveting. When the connection method is hinge, a hinge lug is provided at one end of plate A and is hinged to the cylinder driven by the motor through a hinge shaft. One end of plate B is riveted or welded to plate A.

[0009] The first piece is longer than the second piece, or the first and second pieces are of equal length, with a thickness of 0.1~1mm, a width of 20~200mm, and a length of 1~3m.

[0010] The width of the A and B plates is 40~120mm, the thickness is 0.2-0.6mm, and the length is 1~2.5m.

[0011] The width of the A and B plates is 60~100mm and the thickness is 0.3-0.5mm.

[0012] The spiral umbrella ribs are covered with a metal mesh cover, and a retractable protective sleeve is placed over the metal mesh cover.

[0013] The materials of the A and B sheets are stainless steel sheets, elastic plastics, carbon fibers, graphene, or nanomaterials, and the metal mesh is stainless steel mesh.

[0014] The spiral umbrella rib (3) can be twisted 90 degrees with the length direction as the axis.

[0015] Its advantages are: motor-driven, easy to retract and extend, small size, high strength, minimal contact between the umbrella surface and the vehicle body when unfolded, ventilation and heat dissipation, avoiding high temperature accumulation, simple structure, beautiful and stylish appearance, convenient operation, and can move with the vehicle, thus having a good market prospect. Attached Figure Description

[0016] Figure 1 This is the front view of a spiral-rib umbrella.

[0017] Figure 2 This is a top view of a spiral-rib umbrella.

[0018] Figure 3 This is a schematic diagram of the riveting and welding connection between the spiral umbrella ribs and the cylinder;

[0019] Figure 4 This is the front view of a spiral umbrella rib.

[0020] Figure 5 This is a top view of a spiral umbrella rib.

[0021] Figure 6This is an enlarged cross-sectional view of the AA-shaped spiral umbrella rib;

[0022] Figure 7 This is the front view of the concave noodle-shaped material of the axle plate;

[0023] Figure 8 This is a top view of a concave noodle-shaped material.

[0024] Figure 9 This is the front view of sheet B, a concave noodle-shaped material;

[0025] Figure 10 This is a top view of a concave noodle-shaped material.

[0026] Figure 11 This is a stress analysis diagram of a spiral umbrella rib.

[0027] Figure 12 This is a three-dimensional schematic diagram of the connection between the spiral umbrella ribs and the cylindrical hinge;

[0028] Figure 13 This is a schematic diagram of bending a concave noodle-shaped material.

[0029] Figure 14 This is a schematic diagram of bending a concave noodle-shaped material (e.g., sheet B).

[0030] Figure 15 This is a schematic diagram of a metal mesh protective cover;

[0031] Figure 16 This is a schematic diagram of a retractable protective sleeve;

[0032] Figure 17 It is an arc-shaped cross-sectional view of sheet A and sheet B formed by bending a plane;

[0033] Figure 18 It is a cross-sectional view of an arc shape where plate A is curved and plate B is straight;

[0034] Figure 19 It is a cross-sectional view of an arc-shaped piece A and a piece B with forward and reverse bends;

[0035] Figure 20 It is a cross-sectional view of a bow-shaped piece (A) with a bent arc shape and a piece (B) with forward and reverse bends;

[0036] Figure 21 It is a triangular cross-sectional view of piece A, which is formed by bending piece B from a plane to form a straight plate;

[0037] Figure 22 It is a triangular cross-sectional view of piece A being bent from a plane and piece B being bent in both directions;

[0038] Figure 23 It is a cross-sectional view of sheet A and sheet B bent from a plane into a rhombus shape;

[0039] Figure 24It is a cross-sectional view of the arc shape formed by bending two flat pieces (A and B) with a thin plate in the middle.

[0040] Figure 25 It is a cross-sectional view of sheet A and sheet B, which are rhomboids bent from a plane with a thin plate in the middle.

[0041] As shown in the figure: 1. Motor; 2. Cylinder; 3. Rotating umbrella ribs; 301. A-plate; 302. Hinge ear; 303. Hinge shaft; 304. B-plate; 305. Straight trapezoidal shape; 306. Thin plate; 4. Support post; 401. Roller; 5. Umbrella surface; 6. Metal mesh cover; 7. Retractable protective sleeve. Detailed Implementation

[0042] The overall concept of this invention is to utilize the elasticity and easy unfolding characteristics of concave surfaces to design an umbrella rib with two concave surfaces arranged opposite each other. When the umbrella rib is wrapped around a cylindrical surface, the two arcs become straight lines. After being released from the cylindrical surface, the straight lines become concave surfaces again, achieving the goal of small retraction volume and high release strength. Several embodiments are described below with reference to the accompanying drawings.

[0043] First embodiment, such as Figure 1 , 2 As shown in Figures 4, 5, 6, 7, 8, 9, 10, and 11, a type of umbrella with spiral ribs is a protective device that can be installed above a vehicle to cover the vehicle body. This umbrella has a centrally located cylinder 2 that can rotate under the drive of a motor 1. Multiple spiral ribs 3, each with a concave, nipple-shaped structure, are installed around the cylinder 2 to support the soft fabric of the umbrella. When the cylinder 2 rotates in one direction, the spiral ribs, along with the fabric, roll up around the cylinder 2. When the cylinder 2 rotates in the other direction, the spiral ribs, along with the fabric, unfold outwards to cover the vehicle. The characteristic feature is that the spiral umbrella rib includes two concave thin plates, namely plate A 301 and plate B 304, with the two concave surfaces facing each other and interlocking. Both plate A 301 and plate B 304 are elongated strips, with one end of plate B 304 connected to plate A 301. In the extended state, both plate A 301 and plate B 304 have curved concave surfaces along their width direction, with the concave surfaces facing inward and interlocking to form a date-shaped tubular cross-section. There are various ways to connect this spiral umbrella rib 3 composed of plate A 301 and plate B 304 to the cylinder 2, but it is preferable that one of them is directly connected to the cylinder. For example, plate A 301 is slightly longer than plate B 304, and plate A 301 is connected to the cylinder 2. Because both sheet A 301 and sheet B 304 have good elasticity, this structure is easy to deform. During winding, the concave cross-section is compressed by the surface of the cylinder 2 and gradually becomes a straight line. Since the connection between one end of the concave noodle material of sheet A 301 and the cylinder 2 driven by the motor 1 is a straight line, the deformation during winding is natural and effortless. When the cylinder 2 reverses, the winding umbrella rib 3 extends outward, and the surface is freed from the pressure of the cylinder 2 and quickly returns to its arc shape, increasing the cross-section and bending strength.

[0044] To ensure the rotating umbrella rib 3 can smoothly coil around the cylinder 2, the joint end of the second piece 304 and the first piece 301 preferably has a sharp transition section with a decreasing curvature that fits against the first piece 301. Therefore, the two ends of the concave noodle-shaped material of the second piece 304 are made into straight trapezoidal shapes 305 and bent towards the concave surface. One end of the concave noodle-shaped material of the second piece 304 is connected to the first piece 301 at the joint end between the first piece 301 and the cylinder 2. The second piece 304 is naturally deformed by the compression of the first piece 301, saving effort and energy. After release, the compressed concave noodle-shaped material returns to its concave shape under the action of elasticity, increasing the cross-section and increasing the bending strength.

[0045] As shown in Figure 11, two concave noodle-shaped materials, A piece 301 and B piece 304, are arranged with their concave surfaces facing each other and interlocking. Driven by motor 1, cylinder 2 rotates counterclockwise. The torque M of motor 1 is converted into a tangential tension F and a normal force P1 on A piece 301. The concave noodle-shaped materials A piece 301 and B piece 304 are also subjected to the supporting force P2 of cylinder 2 and the thrust P3 of stop post 4. Under the combined action of P1, P2, and P3, A piece 301 and B piece 304... The 304 concave noodle material is bent and wound around the cylindrical surface of cylinder 2, and the arc shape of the cross section becomes a straight line. When the motor rotates clockwise, the two concave noodle materials, A piece 301 and B piece 304, are unwound from cylinder 2, freed from the combined action of P1, P2, and P3. The two concave noodle materials, A piece 301 and B piece 304, wound around cylinder 2, restore the straight cross section to the original concave shape under their own elastic force, increasing the cross-sectional area and enhancing the bending strength.

[0046] It should be noted that the baffle 4 is a cylindrical shape, with two symmetrically arranged about the cylinder 2. Inside, there is a roller 401 and a flat strip wound on the roller 401. The other end of the flat strip is connected to the cylinder 2 driven by the motor, and rotates with the cylinder 2 and is wrapped around the outside of the spiral umbrella rib 3, which plays a traction, guiding and pressing role for the spiral umbrella rib 3 to rotate in and out.

[0047] Second embodiment, such as Figure 12 , 13As shown in 14, 17-25, based on the first embodiment, the two concave noodle-shaped materials, A piece 301 and B piece 304, have their concave surfaces facing each other and interlocked, with a cross-section that is rhomboid, date-shaped, triangular, or arc-shaped. Alternatively, a straight thin plate 306 or a thin plate 306 bent in both directions can be provided vertically within the rhomboid or date-shaped material. The concave surfaces of A piece 301 and / or B piece 304 are arc surfaces or formed by bending a plane. [That is to say, A piece can be an arc surface or a bent surface formed by bending a plane, and this arc surface or bent surface refers to the cross-sectional shape of A piece. Similarly, B piece can also be an arc surface or a bent surface like A piece.] The rotating umbrella rib 3 is formed by interlocking A piece and B piece. Since A piece and B piece have two different cross-sectional shapes, the rotating umbrella rib can be combined into various combination modes, such as... Figure 17-23 [As shown]; 304 sheet B can also be a flat surface or a straight surface bent in both directions, such as... Figure 18-22 As shown. Figures 17-25 The addition of ridges increases the bending strength of the umbrella ribs along their length.

[0048] The third embodiment, such as Figure 7 , 8 As shown, based on the first embodiment, the apron 301 includes a first section and a second section. The first section is located on the connecting side of the cylinder 2, and the second section is located on the end side. The cross-section of the first section is arc-shaped, and the cross-section of the second section is a straight surface or a folded surface with forward and reverse bends. This structure is designed to meet the requirements of the vehicle body shape and the traditional umbrella shape, making the base of the umbrella sturdy and the edge of the umbrella shaped according to the umbrella surface, that is, it can be twisted in the length direction of the umbrella ribs.

[0049] Fourth embodiment, such as Figure 3 , 4 As shown in Figures 5, 6, 7, 8, 11, and 12, based on the first embodiment, the connection method between plate A 301 and cylinder 2 is hinged, welded, or riveted. When the connection method is hinged, a hinge lug 302 is provided at one end of plate A 301, and is hinged to cylinder 2 driven to rotate by motor 1 through hinge shaft 303. One end of plate B 304 is riveted or welded to plate A 301. The welding mentioned here is spot welding to avoid affecting the arc deformation due to the long weld seam.

[0050] In the fifth embodiment, based on the second embodiment, the first piece 301 is longer and the second piece 304 is shorter, or the first piece 301 and the second piece 304 are of equal length, with a thickness of 0.1~1mm, a width of 20~200mm, and a length of 1~3m. More preferably, the width of the first piece 301 and the second piece 304 is 40~120mm, the thickness is 0.2-0.6mm, and the length is 1~2.5m.

[0051] The sixth embodiment, as follows: Figure 15 , 16As shown, based on the fifth embodiment, a metal mesh cover 6 is fitted over the spiral umbrella rib. The metal mesh cover 6 is made of stainless steel mesh, and a retractable protective sleeve 7 is fitted over the stainless steel mesh cover. The retractable protective sleeve 7 is a heat-shrinkable plastic tube. Since the two concave noodle-shaped materials, A piece 301 and B piece 304, one long and one short, move relative to each other in the length direction during spiraling and releasing, the metal mesh cover 6 acts as a guide sleeve. At the same time, the metal mesh cover 6 is easily deformable and is spiraled along with the concave noodle-shaped materials. The retractable protective sleeve 7 serves to fix and enhance the appearance.

[0052] In the seventh embodiment, based on the sixth embodiment, the concave noodle-shaped materials of sheet A 301 and sheet B 304 are stainless steel sheets, elastic plastics, carbon fibers, graphene, or nanomaterials; the metal mesh is a stainless steel mesh.

[0053] Eighth embodiment, such as Figure 4 , 5 As shown, based on the above embodiments, the spiral umbrella rib 3 can be twisted 90 degrees with the length direction as the axis, which better adapts to the shape of the vehicle body and the shape of the traditional umbrella.

[0054] The car sunshade made of the spiral umbrella ribs described in this invention has high strength and strong wind resistance. It can be remotely operated and opened and closed easily, and has good market prospects.

Claims

1. A spiral umbrella rib, wherein the spiral umbrella rib is wound around a cylinder (2) driven to rotate by an electric motor (1), characterized in that, The spiral umbrella ribs include two concave noodle-shaped materials, A (301) and B (304), with the two concave surfaces facing each other and fastened together; The umbrella ribs can fold and store the umbrella fabric and roll it up on the cylinder.

2. The spiral umbrella rib according to claim 1, characterized in that, One end of the first piece (301) is connected to the cylinder (2), and the two ends of the second piece (304) are in the shape of a straight trapezoid (305) and bent towards the concave side. One end of the second piece (304) is connected to the first piece (301) at the connection end between the first piece (301) and the cylinder (2), or one end of the first piece (301) and the second piece (304) are connected to the cylinder (2) together.

3. A spiral umbrella rib according to claim 1 or 2, characterized in that, The spiral umbrella rib has a jujube-shaped, rhomboid, triangular, or bow-shaped cross section, or a thin plate with straight or reverse bending in the vertical direction within the rhomboid or jujube-shaped cross section; the concave noodle material of sheet A (301) and / or sheet B (304) has a concave surface that is an arc surface or is formed by bending a plane.

4. A spiral umbrella rib according to claim 1 or 2, characterized in that, The second piece (304) is a flat surface or a straight surface bent in both directions.

5. A spiral umbrella rib according to claim 2, characterized in that, The plate (301) includes a first section and a second section. The first section is located on the side connected to the cylinder (2), and the second section is located on the end side. The cross-section of the first section is arc-shaped, and the cross-section of the second section is a straight surface or a folded surface with forward and reverse bends.

6. A spiral umbrella rib according to claim 2, characterized in that, The connection method between the axle (301) and the cylinder (2) is hinge, welding or riveting. When the connection method is hinge, a hinge ear (302) is provided at one end of the axle (301), and is hinged to the cylinder (2) driven to rotate by the motor (1) through the hinge shaft (303). One end of the bxle (304) is riveted or welded to the axle (301).

7. A spiral umbrella rib according to claim 3, characterized in that, The first piece (301) is longer than the second piece (304), or the first piece (301) and the second piece (304) are of equal length, with a thickness of 0.1~1mm, a width of 20~200mm, and a length of 1~3m.

8. A spiral umbrella rib according to claim 7, characterized in that, The width of the first piece (301) and the second piece (304) are 40~120mm, the thickness is 0.2-0.6mm, and the length is 1~2.5m.

9. A spiral umbrella rib according to claim 7, characterized in that, The spiral umbrella ribs are covered with a metal mesh cover (6), and a retractable protective cover (7) is placed over the metal mesh cover.

10. A spiral umbrella rib according to claim 9, characterized in that, The materials of the first sheet (301) and the second sheet (304) are stainless steel sheet, elastic plastic, carbon fiber, graphene or nanomaterials, and the metal mesh cover is stainless steel mesh.

11. A spiral umbrella rib according to claim 2 or 5, characterized in that, The spiral umbrella rib (3) can be twisted 90 degrees about the length direction.

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