A light portable umbrella

Abstract

The utility model relates to umbrella technical field discloses a light -duty portable umbrella, including umbrella body, the hollow cylinder is connected to the umbrella body outside, the double helix groove is seted up to the hollow cylinder outer wall, the movable ring is connected to the hollow cylinder outer wall, the fixed mounting of movable ring inner wall has the sliding block, the sliding block sliding is embedded in the double helix groove, the fixed mounting of movable ring outer wall has the first hinged block, the first hinged block hinged link bar one end, the other end of link bar the other end of link bar hinged the second hinged block on the umbrella rib, the second hinged block is fixedly connected with the umbrella rib, the one end of umbrella rib is hinged in the hinged disc on the umbrella body top, the ratchet wheel is fixedly installed to the hollow cylinder lower end surface, the coaxial sleeve of ratchet wheel is in the umbrella body outer wall. The utility model discloses through the design of double helix and ratchet wheel ratchet structure, solves the problem that the opening and closing two hands cooperate inconveniently, cannot adapt to different opening and closing angle.

Description

Technical Field

[0001] This utility model relates to the field of umbrella equipment technology, specifically a lightweight portable umbrella. Background Technology

[0002] An umbrella is a tool for shading from the sun or from rain and snow. It is usually made of oiled paper, oilcloth, or plastic sheeting. The Latin word for umbrella means shade or shade. The materials used to make an umbrella usually include stretchable fabric, other materials that can be used as a frame, and binding thread. It is held up by hand when in use. Although the umbrella was originally invented primarily to block sunlight, it is now most commonly used as a tool to protect against rain.

[0003] However, conventional umbrellas require both hands to open and close: one hand to hold the handle and the other to push and pull the shaft. This is extremely inconvenient when holding items in the rain. The unfolding of the umbrella ribs depends on the user applying a straight pushing force, which is laborious and can easily cause the umbrella surface to tilt. Although existing automatic umbrellas attempt to simplify the operation, their automatic schemes are obviously complex and have poor waterproofing, making them prone to damage. Furthermore, existing umbrellas only have two states: fully open and fully closed, which makes it inconvenient to coordinate both hands when opening and closing and cannot adapt to different opening angles. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight and portable umbrella to solve the problems of inconvenience in coordinating the opening and closing with both hands and inability to adapt to different opening and closing angles.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a lightweight portable umbrella, comprising an umbrella body, a hollow cylinder fitted onto the outer side of the umbrella body, a double-helix groove formed on the outer wall of the hollow cylinder, a movable ring fitted onto the outer wall of the hollow cylinder, a slider fixedly installed on the inner wall of the movable ring, the slider being slidably embedded in the double-helix groove, a first hinge block fixedly installed on the outer wall of the movable ring, the first hinge block hinged to one end of a connecting rod, the other end of the connecting rod hinged to a second hinge block on the umbrella rib, the second hinge block being fixedly connected to the umbrella rib, and one end of the umbrella rib being hinged to a hinge plate at the top of the umbrella body. A ratchet is fixedly installed on the lower end face of the hollow cylinder. The ratchet is coaxially sleeved on the outer wall of the umbrella body. The outer wall of the umbrella body has a rectangular groove along the axial direction. A movable seat is slidably installed in the rectangular groove. A ratchet tooth that mates with the ratchet groove is fixedly installed on the top of the movable seat. A baffle is provided at the lower end of the ratchet tooth. A first spring is installed on the side of the baffle. The other end of the first spring is connected to the inner wall of the movable seat. A guide rail groove is provided at the bottom of the movable seat.

[0006] Furthermore, a rotating handle is fixedly installed on the outer wall of the hollow cylinder.

[0007] Furthermore, a limiting guide rail is fixedly installed on the top of the rectangular groove. The limiting guide rail is coaxially arranged with the rectangular groove. The movable seat is slidably sleeved on the limiting guide rail through the guide rail groove. A second spring is coaxially installed on the limiting guide rail. One end of the second spring is connected to the movable seat, and the other end is connected to the inner wall of the rectangular groove.

[0008] Furthermore, the transmission structure consisting of the umbrella ribs, connecting rods, first hinge block, and second hinge block is arranged in six sets in a uniform array around the circumference of the umbrella body.

[0009] Furthermore, a top cover is fixedly installed at the top of the umbrella body.

[0010] Furthermore, a curved handle is fixedly installed on the bottom end face of the umbrella body.

[0011] This utility model has the following beneficial effects: (1) When opening the umbrella, the user holds the handle and rotates it clockwise. The hollow cylinder rotates synchronously with the handle. The double helical groove generates a spiral trajectory as the hollow cylinder rotates. The slider slides along the trajectory of the double helical groove. The movable ring is driven by the slider to rise along the umbrella axis. The first hinge block moves up with the movable ring. The connecting rod is pushed by the first hinge block. The second hinge block is pushed outward by the connecting rod. The umbrella ribs unfold outward with the hinge plate as the fulcrum. The ratchet rotates with the hollow cylinder to the locking position. The ratchet teeth automatically engage with the ratchet groove under the action of the first spring. The baffle limits the downward pressure of the ratchet teeth. The moving seat slides along the limiting guide rail through the guide rail groove. Opening the umbrella only requires one hand to hold the handle and rotate it. The spiral transmission reduces the operating force. When closing the umbrella, press down on the moving seat to unlock it. Reverse rotation of the handle triggers the umbrella ribs to close automatically. The two hands work together easily. The double buffer design of the first spring and the second spring makes the operating force uniform and avoids the jamming feeling when the traditional umbrella ribs are folded. The double helix and ratchet design realizes the opening and closing of the umbrella at any angle.

[0012] (2) When the umbrella ribs are unfolded, the movable seat slides upward along the axial direction of the limiting guide rail. The inner wall of the guide rail groove is in contact with the surface of the limiting guide rail, which constrains the movable seat to only make linear movements. The second spring is stretched and stores energy by the movable seat. One end of the second spring is pulled by the movable seat, and the other end is anchored to the inner wall of the rectangular groove. The spring tension increases linearly with the displacement. When the external force presses down on the movable seat, the guide rail groove slides downward along the axial direction of the limiting guide rail. The compression stroke of the movable seat is limited by the length of the limiting guide rail. The second spring contracts and releases the stored energy. The spring tension pulls the movable seat back to the inner wall of the rectangular groove. The clearance fit between the limiting guide rail and the guide rail groove restricts the axial displacement of the movable seat.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the double helical groove structure of this utility model; Figure 3 This is a schematic diagram of the movable linkage structure of this utility model; Figure 4 This is a schematic diagram of the ratchet and ratchet tooth structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the double helical groove of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Umbrella body; 2. Hollow cylinder; 3. Movable ring; 4. Connecting rod; 5. Umbrella ribs; 61. Ratchet; 7. Moving seat; 101. Hinge plate; 102. Rectangular groove; 103. Limiting guide rail; 104. Top cover; 105. Bent handle; 201. Double helix groove; 202. Rotating handle; 301. Slider; 302. First hinge block; 501. Second hinge block; 701. Ratchet; 702. Baffle; 703. First spring; 704. Guide rail groove; 705. Second spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 - Figure 5As shown, this utility model is a lightweight portable umbrella, including an umbrella body 1. A hollow cylinder 2 is sleeved on the outer side of the umbrella body 1. A double helical groove 201 is formed on the outer wall of the hollow cylinder 2. A movable ring 3 is sleeved on the outer wall of the hollow cylinder 2. A slider 301 is fixedly installed on the inner wall of the movable ring 3. The slider 301 is slidably embedded in the double helical groove 201. A first hinge block 302 is fixedly installed on the outer wall of the movable ring 3. The first hinge block 302 is hinged to one end of a connecting rod 4. The other end of the connecting rod 4 is hinged to a second hinge block 501 on the umbrella rib 5. The second hinge block 501 is fixedly connected to the umbrella rib 5. One end of the umbrella rib 5 is hinged to a hinge plate 101 at the top of the umbrella body 1. A ratchet 61 is fixedly installed on the lower end face of the hollow cylinder 2. The ratchet 61 is coaxially sleeved on the outer wall of the umbrella body 1. A rectangular groove 102 is provided along the axial direction of the outer wall of the umbrella body 1. A movable seat 7 is slidably installed in the rectangular groove 102. A ratchet 701 that mates with the groove of the ratchet 61 is fixedly installed on the top of the movable seat 7. A baffle 702 is provided at the lower end of the ratchet 701. A first spring 703 is installed on the side of the baffle 702. The other end of the first spring 703 is connected to the inner wall of the movable seat 7. A guide rail groove 704 is provided at the bottom of the movable seat 7. Among them, the umbrella body 1 is made of aluminum alloy, which is lightweight and easy to carry; During the umbrella opening process, the user holds the handle 202 and rotates it clockwise. The hollow cylinder 2 rotates synchronously with the handle 202. The double helical groove 201 rotates with the hollow cylinder 2, generating a helical trajectory. The slider 301 slides along the trajectory of the double helical groove 201. The movable ring 3 is driven by the slider 301 to rise along the axial direction of the umbrella body 1. The first hinge block 302 moves upward with the movable ring 3. The connecting rod 4 is pushed by the first hinge block 302. The second hinge block 501 is pushed outward by the connecting rod 4. The umbrella ribs 5 unfold outward with the hinge plate 101 as the fulcrum. Wheel 61 rotates with hollow cylinder 2 to the locking position. Racket 701 automatically engages with the slot of ratchet 61 under the action of the first spring 703. Baffle 702 limits the downward pressure of ratchet 701. Moving seat 7 slides along limiting guide rail 103 via guide rail groove 704. During umbrella closing, pressing down on moving seat 7 overcomes the elastic force of the second spring 705, causing ratchet 701 to disengage from the slot of ratchet 61. Rotating handle 202 counterclockwise causes hollow cylinder 2 to reverse the direction of double helix groove 201. Sliding slider 301 slides in the opposite direction along double helix groove 201. Movable ring 3... As the umbrella moves downward along the axis of the umbrella body 1, the connecting rod 4 pulls the second hinge block 501 inward, and the umbrella rib 5 rotates around the hinge plate 101 to fit tightly against the umbrella body 1. The moving seat 7 slides back to the initial position along the limit guide rail 103. After the baffle 702 is released, the first spring 703 resets the ratchet 701. Opening the umbrella only requires one hand to hold the handle 202 and rotate it. The spiral transmission reduces the operating force. When closing the umbrella, pressing down on the moving seat 7 unlocks it. Rotating the handle 202 in the opposite direction triggers the umbrella rib 5 to automatically close, realizing opening and closing at any angle.

[0018] A rotating handle 202 is fixedly installed on the outer wall of the hollow cylinder 2.

[0019] The clockwise and counterclockwise rotation of the handle 202 enables the opening and closing of the umbrella. The surface of the handle 202 is provided with silicone anti-slip texture, and the handle 202 is designed to save effort.

[0020] A limiting guide rail 103 is fixedly installed on the top of the rectangular groove 102. The limiting guide rail 103 is coaxially arranged with the rectangular groove 102. The movable seat 7 is slidably sleeved on the limiting guide rail 103 through the guide rail groove 704. A second spring 705 is coaxially installed on the limiting guide rail 103. One end of the second spring 705 is connected to the movable seat 7, and the other end is connected to the inner wall of the rectangular groove 102.

[0021] When the umbrella rib 5 unfolds, the movable seat 7 slides upward along the axial direction of the limiting guide rail 103. The inner wall of the guide rail groove 704 is precisely fitted with the surface of the limiting guide rail 103, constraining the movable seat 7 to only make linear movements. The second spring 705 is stretched and stores energy by the movable seat 7. One end of the second spring 705 is pulled by the movable seat 7, and the other end is anchored to the inner wall of the rectangular groove 102. The spring tension increases linearly with the displacement. When the external force presses down on the movable seat 7, the guide rail groove 704 slides downward along the axial direction of the limiting guide rail 103. The compression stroke of the movable seat 7 is limited by the length of the limiting guide rail 103. The second spring 705 contracts and releases the stored energy. The spring tension pulls the movable seat 7 back to the inner wall of the rectangular groove 102. The clearance fit between the limiting guide rail 103 and the guide rail groove 704 restricts the axial displacement of the movable seat 7.

[0022] The transmission structure, consisting of umbrella ribs 5, connecting rods 4, first hinge block 302 and second hinge block 501, is arranged in six sets in a uniform array around the circumference of umbrella body 1.

[0023] A top cover 104 is fixedly installed at the top of the umbrella body 1.

[0024] A curved handle 105 is fixedly installed on the bottom end of the umbrella body 1.

[0025] The six sets of structures operate synchronously. The umbrella ribs 5 are tightly attached to the umbrella body 1 to ensure uniform tension of the canopy. When the umbrella ribs 5 are unfolded, they apply radial tension to the top cover 104. The user holds the curved handle 105 and rotates the umbrella body 1. The curved handle 105 transmits torque to the bottom of the umbrella body 1. The tension of the six sets of umbrella ribs 5 is evenly distributed to the umbrella body 1, so that the load center is always on the axis of the umbrella body 1. During use, when opening the umbrella, hold the handle 202 with one hand and rotate it clockwise. The handle 202 drives the hollow cylinder 2 to rotate clockwise synchronously. The double helix groove 201 on the outer wall of the hollow cylinder 2 forms an upward spiral trajectory with the rotation. The slider 301 slides along the trajectory of the double helix groove 201, converting the rotational motion into axial linear motion. The movable ring 3 is driven by the slider 301 and moves upward along the axial direction of the umbrella body 1. The first hinge block 302 moves upward accordingly, pushing the connecting rod 4 to tilt and lift. The connecting rod 4 pushes the second hinge block 501, causing the umbrella rib 5 to unfold outward with the hinge plate 101 as the fulcrum. The ratchet 61 rotates to the locking position, and the ratchet tooth 701 automatically engages with the slot of the ratchet 61 under the elastic force of the first spring 703, locking the umbrella body 1 in the unfolded state. The baffle 702 limits the downward pressing depth of the ratchet tooth 701. The moving seat 7 moves upward along the rectangular groove 102, and its bottom guide rail groove 704 slides linearly against the limiting guide rail 103. The second spring 705 is stretched and stored. The user presses down on the movable seat 7 to overcome the tension of the second spring 705. The movable seat 7 drives the ratchet 701 to disengage from the ratchet 61 slot, releasing the lock. The guide rail groove 704 moves down along the limiting guide rail 103, constraining the linear movement of the movable seat 7. During the closing phase, the user rotates the handle 202 counterclockwise, causing the hollow cylinder 2 to rotate in the opposite direction. The double helix groove 201 forms a descending spiral trajectory, and the slider 301 slides in the opposite direction. The movable ring 3 is driven by the slider 301 to move down along the axial direction of the umbrella body 1. The first hinge block 302 pulls down the connecting rod 4, pulling the second hinge block 501 to retract inward along the axial direction of the umbrella body 1. The umbrella rib 5 rotates around the hinge plate 101 as the fulcrum, folding close to the umbrella body 1. After releasing the movable seat 7, the second spring 705 contracts, pulling the movable seat 7 back to the initial position of the rectangular groove 102 along the limiting guide rail 103. The first spring 703 pushes the ratchet 701 to reset to the locking position.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A lightweight portable umbrella, comprising an umbrella body (1), characterized in that: A hollow cylinder (2) is sleeved on the outside of the umbrella body (1). A double helical groove (201) is provided on the outer wall of the hollow cylinder (2). A movable ring (3) is sleeved on the outer wall of the hollow cylinder (2). A slider (301) is fixedly installed on the inner wall of the movable ring (3). The slider (301) is slidably embedded in the double helical groove (201). The outer wall of the movable ring (3) is fixedly installed with a first hinge block (302), which is hinged to one end of the connecting rod (4). The other end of the connecting rod (4) is hinged to a second hinge block (501) on the umbrella rib (5). The second hinge block (501) is fixedly connected to the umbrella rib (5). One end of the umbrella rib (5) is hinged to the outside of the hinge plate (101) at the top of the umbrella body (1). A ratchet (61) is fixedly installed on the lower end face of the hollow cylinder (2). The ratchet (61) is coaxially sleeved on the outer wall of the umbrella body (1). The outer wall of the umbrella body (1) is provided with a rectangular groove (102) along the axial direction; a movable seat (7) is slidably installed in the rectangular groove (102); a ratchet (701) that mates with the slot of the ratchet (61) is fixedly installed on the top of the movable seat (7); a baffle (702) is provided at the lower end of the ratchet (701); a first spring (703) is installed on the side of the baffle (702); and the other end of the first spring (703) is connected to the inner wall of the movable seat (7). The bottom of the movable seat (7) is provided with a guide rail groove (704).

2. The lightweight portable umbrella according to claim 1, characterized in that: A rotating handle (202) is fixedly installed on the outer wall of the hollow cylinder (2).

3. A lightweight portable umbrella according to claim 1, characterized in that: A limiting guide rail (103) is fixedly installed on the top of the rectangular groove (102). The limiting guide rail (103) is coaxially arranged with the rectangular groove (102). The movable seat (7) is slidably sleeved on the limiting guide rail (103) through the guide rail groove (704). A second spring (705) is coaxially mounted on the limiting guide rail (103). One end of the second spring (705) is connected to the movable seat (7), and the other end is connected to the inner wall of the rectangular groove (102).

4. A lightweight portable umbrella according to claim 1, characterized in that: The transmission structure consisting of the umbrella rib (5), connecting rod (4), first hinge block (302) and second hinge block (501) is arranged in six sets in a uniform array around the circumference of the umbrella body (1).

5. A lightweight portable umbrella according to claim 1, characterized in that: The top of the umbrella body (1) is fixedly installed with a top cover (104).

6. A lightweight portable umbrella according to claim 1, characterized in that: A curved handle (105) is fixedly installed on the bottom end face of the umbrella body (1).

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