All-aluminum special-shaped middle rod of umbrella
By designing a V-shaped structure and cushioning components for the umbrella shaft, the problems of poor bending resistance and wear on the lower umbrella disc were solved, resulting in higher toughness and service life, while making the umbrella shaft lighter and more portable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU XINHUAMAO HARDWARE & PLASTIC CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-19
AI Technical Summary
The existing umbrella's central rod has a circular cross-section, resulting in poor bending resistance. During use, the lower umbrella disc wears out severely, affecting its service life.
The small, medium, and large rods are designed with a symmetrical V-shaped cross-section and a combination of curved edges, combined with buffer and adjustment components to enhance bending resistance and reduce vibration of the lower umbrella disc.
It improves the toughness and lifespan of the umbrella shaft, reduces wear on the lower umbrella disc, and makes the umbrella shaft lighter, more portable, and easier to use.
Smart Images
Figure CN224250885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of umbrella technology, and in particular to an all-aluminum irregularly shaped central rod for an umbrella. Background Technology
[0002] An umbrella is a tool for shielding from the sun or rain and snow. It is usually made of oiled paper, oilcloth, or plastic sheeting, and is held up by hand when in use. Although the main purpose of umbrellas when they were first invented was to block the sun, they are now most commonly used as a tool to shield people from the rain and are a common tool that people carry with them when they go out.
[0003] Chinese utility model patent CN220512350U discloses a fishing umbrella with a cushioning function. By installing an elastic cushioning post between the upper and lower umbrella poles of the fishing rod, the elastic cushioning post is made of polyurethane elastomer. The elastic cushioning post of polyurethane elastomer material forms a cushion, so that when the umbrella head is closed, there is a buffer between the upper and lower umbrella poles, which helps to protect the fishing umbrella rod and extend the service life of the fishing umbrella.
[0004] Regarding the aforementioned related technologies, the inventors believe that the following defects exist:
[0005] In actual use, the device protects the central rod when the umbrella head is closed by setting up an elastic buffer column. However, during use, the umbrella central rod is usually squeezed by the extended limiting clip by the lower umbrella plate, which facilitates the retraction of the central rod. However, as the usage time increases, the bottom of the lower umbrella plate will wear down, affecting the service life of the device. In addition, the cross-section of the umbrella central rod is generally circular, which makes the umbrella central rod less resistant to bending. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides an all-aluminum irregular-shaped central rod for umbrellas.
[0007] This utility model is achieved using the following technical solution: an all-aluminum irregular-shaped central rod for an umbrella, including a small rod, a central rod slidably connected to the surface of the small rod, a connecting cylinder sleeved on the surface of the small rod, a buffer component installed on the surface of the connecting cylinder, a large rod slidably connected to the surface of the central rod, an upper umbrella plate sleeved on the surface of the connecting cylinder, a lower umbrella plate slidably connected to the surface of the small rod, and an adjustment component installed at the bottom of the lower umbrella plate.
[0008] The buffer assembly includes a fixed cylinder sleeved on the surface of the connecting cylinder. A limit ring is slidably connected inside the fixed cylinder. The limit ring is slidably disposed inside the surface of the connecting cylinder. The top of the limit ring and the top of the inner wall of the fixed cylinder are connected by a buffer spring sleeved on the surface of the connecting cylinder. A sleeve post is fixedly connected to the bottom of the limit ring, and an abutment ring is fixedly connected to the bottom of the sleeve post.
[0009] The adjustment assembly includes a mounting ring fixedly connected to the bottom of the lower umbrella disc, a gear ring rotatably connected inside the mounting ring, a connecting gear meshing with the surface of the gear ring, the top end of the intermediate shaft of the connecting gear rotatably connected to the top of the inner wall of the mounting ring, a worm gear sleeved on the surface of the intermediate shaft of the connecting gear, and a worm gear drively connected to the surface of the worm gear.
[0010] As a further improvement to the above solution, a square cover is fixedly connected to the bottom of the mounting ring, one end of the worm gear is rotatably connected to the inner wall of the square cover, a small bearing is installed on the surface of the worm gear, the small bearing is rotatably connected to the inner wall of the square cover, and a handwheel is fixedly connected to one end of the worm gear for easy rotation.
[0011] As a further improvement to the above solution, the mounting ring has a rotating groove inside, and the gear ring is rotatably connected inside the rotating groove. The mounting ring also has a semi-circular groove inside, and the connecting gear is installed inside the semi-circular groove, ensuring the normal operation of the connecting gear and the gear ring.
[0012] As a further improvement to the above solution, limit clips are installed on the surface of the small rod and the surface of the middle rod, and limit openings adapted to the limit clips are opened on the surface of the middle rod and the large rod, so as to facilitate the limit fixation of the small rod, the middle rod and the large rod.
[0013] As a further improvement to the above solution, the gear ring includes a rotating ring rotatably disposed inside the rotating groove, with teeth fixedly connected at equal intervals on the surface of the rotating ring, and a wear-resistant ring fixedly connected to the inner wall of the rotating ring for pressing the limiting clip.
[0014] As a further improvement to the above solution, the cross-sections of the large rod, the middle rod, and the small rod all have two symmetrically arranged V-shaped sides. The two ends of the V-shaped side of the large rod are fixedly connected to an outer arc-shaped side, the two ends of the V-shaped side of the middle rod are fixedly connected to an outer arc-shaped side and an inner arc-shaped side, respectively, and the two ends of the V-shaped side of the small rod are fixedly connected to an inner arc-shaped side, thereby improving the bending resistance of the large rod, the middle rod, and the small rod.
[0015] As a further improvement to the above solution, a protective sleeve is threaded onto the top of the rod to protect the top of the rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This utility model, by setting up a small pole, a medium pole, and a large pole, features a symmetrical V-shaped structure and arc-shaped edges in the cross-section of each pole. When the device is impacted, multiple arc surfaces and planar corners provide support and protection, resulting in better umbrella pole toughness and strength. It is less prone to bending and deformation, easier to open and close, and smoother to pull. Despite its thinness, the tube offers better anti-bending performance and a longer service life. Furthermore, the distance between the parallel sides of the two upper V-shaped edges of the large and small poles is 6.7mm and 3.8mm respectively. This design overturns the traditional problems of bulky umbrella poles, heavy feel, and inconvenience for travel, making the device lighter, more portable, and more convenient to use.
[0018] 2. By designing the device, when it is opened, the lower umbrella plate will move upward to open the device. During this process, while the lower umbrella plate is being fixed, the top of the lower umbrella plate will first press against the abutment ring, causing the abutment ring to move upward. This causes the sleeve column to move upward with the limiting ring. Under the action of the buffer spring, the abutment of the lower umbrella plate is buffered, reducing the vibration generated when the lower umbrella plate is opened and improving the overall service life of the device. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the lower umbrella disc, fixing cylinder, and limiting ring of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the mounting ring, gear ring, and connecting gear of this utility model;
[0022] Figure 4 This is a schematic diagram of the small rod, medium rod, and large rod of this utility model.
[0023] Explanation of key symbols:
[0024] 1. Small pole; 2. Middle pole; 3. Connecting cylinder; 4. Large pole; 5. Upper umbrella plate; 6. Lower umbrella plate; 7. Fixing cylinder; 8. Limiting ring; 9. Abutment ring; 10. Mounting ring; 11. Gear ring; 12. Connecting gear; 13. Worm gear; 14. Worm gear. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Example:
[0027] Please combine Figure 1-4This embodiment of an umbrella features an all-aluminum irregularly shaped central rod, including a small rod 1. A protective sleeve is threaded to the top of the small rod 1 to protect its tip. A middle rod 2 is slidably connected to the surface of the small rod 1. A connecting cylinder 3 is sleeved onto the surface of the small rod 1, and a buffer assembly is installed on the surface of the connecting cylinder 3. A large rod 4 is slidably connected to the surface of the middle rod 2. Limiting clips are installed on the surfaces of both the small rod 1 and the middle rod 2. Limiting openings adapted to the limiting clips are provided on the surfaces of both the middle rod 2 and the large rod 4 to facilitate the limiting and fixing of the small rod 1, middle rod 2, and large rod 4. The cross-section of each rod has two symmetrically arranged V-shaped sides. The two ends of the V-shaped side of the large rod 4 are fixedly connected to the outer arc side. The two ends of the V-shaped side of the middle rod 2 are fixedly connected to the outer arc side and the inner arc side respectively. The two ends of the V-shaped side of the small rod 1 are fixedly connected to the inner arc side. This improves the bending resistance of the large rod 4, the middle rod 2 and the small rod 1. The distance between the parallel sides of the upper two V-shaped sides of the large rod 4 and the small rod 1 is 6.7mm and 3.8mm respectively. The upper umbrella plate 5 is sleeved on the surface of the connecting tube 3. The lower umbrella plate 6 is slidably connected to the surface of the small rod 1. An adjustment component is installed at the bottom of the lower umbrella plate 6.
[0028] The buffer assembly is used to reduce the impact force when the lower umbrella disc 6 is opened. The buffer assembly includes a fixed cylinder 7 sleeved on the surface of the connecting cylinder 3. A limit ring 8 is slidably connected inside the fixed cylinder 7. The limit ring 8 is slidably disposed inside the surface of the connecting cylinder 3. The top of the limit ring 8 and the top of the inner wall of the fixed cylinder 7 are connected by a buffer spring sleeved on the surface of the connecting cylinder 3. A sleeve post is fixedly connected to the bottom of the limit ring 8. An abutment ring 9 is fixedly connected to the bottom of the sleeve post.
[0029] The adjusting assembly is used to adjust the corresponding position of the inner wall of the gear ring 11 and the limiting clip. The adjusting assembly includes a mounting ring 10 fixedly connected to the bottom of the lower umbrella disc 6. The gear ring 11 is rotatably connected inside the mounting ring 10. The gear ring 11 includes a rotating ring rotatably disposed inside a rotating groove. The surface of the rotating ring is fixedly connected with teeth at equal intervals. A wear-resistant ring is fixedly connected to the inner wall of the rotating ring for pressing the clip. A connecting gear 12 is meshed with the surface of the gear ring 11. A rotating groove is opened inside the mounting ring 10, and the gear ring 11 is rotatably connected inside the rotating groove. A semi-circular groove is opened inside the mounting ring 10 for connecting... Gear 12 is installed inside the semi-circular groove, ensuring the normal operation of connecting gear 12 and gear ring 11. The top end of the intermediate shaft of connecting gear 12 is rotatably connected to the top of the inner wall of mounting ring 10. A worm gear 13 is sleeved on the surface of the intermediate shaft of connecting gear 12. A worm gear 14 is drivenly connected to the surface of the worm gear 13. A square cover is fixedly connected to the bottom of mounting ring 10. One end of the worm gear 14 is rotatably connected to the inner wall of the square cover. A small bearing is installed on the surface of the worm gear 14. The small bearing is rotatably connected to the inner wall of the square cover. A handwheel is fixedly connected to one end of the worm gear 14 for easy rotation.
[0030] The implementation principle of the all-aluminum irregular-shaped central rod of the umbrella in this application embodiment is as follows: When the device is opened, the lower umbrella plate 6 will move upward to open the device. During this process, while the lower umbrella plate 6 is being fixed, the top of the lower umbrella plate 6 will first press the abutment ring 9, causing the abutment ring 9 to move upward, thereby causing the sleeve post to move upward with the limiting ring 8. Under the action of the buffer spring, the abutment of the lower umbrella plate 6 is buffered, reducing the vibration generated when the lower umbrella plate 6 is opened, and improving the overall service life of the device.
[0031] After prolonged use, when wear occurs on the inner wall of the gear ring 11, rotating the worm gear 14 causes the worm wheel 13 to rotate, which in turn causes the intermediate shaft connecting the gear 12 to rotate. This changes the contact position between the gear ring 11 and the limiting clip, allowing the intact inner wall of the gear ring 11 to contact the limiting clip, thereby improving the service life of the gear ring 11.
[0032] The cross-sections of the small pole 1, medium pole 2, and large pole 4 in this device are all composed of symmetrically arranged V-shaped structures and arc-shaped edges. When the device is subjected to impact, multiple arc surfaces and planar corner supports provide protection, making the umbrella pole more resilient and stronger, less prone to bending and deformation, easier to open and close, and smoother to pull. Although the tube is thin, it has better anti-bending effect and a longer service life. In addition, the distance between the parallel sides of the upper two V-shaped edges of the large pole 4 and the small pole 1 is 6.7mm and 3.8mm respectively, making the umbrella pole thinner. This overturns the traditional problems of large umbrella poles, bulky appearance, heavy feel, and inconvenience for travel, making the device lighter, more portable, and more convenient to use.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A full-aluminum special-shaped middle rod of an umbrella, characterized in that, The utility model provides a kind of umbrella, including small rod (1), the surface of small rod (1) is slidably connected with middle rod (2), the surface of small rod (1) is sleeved with connecting cylinder (3), the surface of connecting cylinder (3) is installed with buffer assembly, the surface of middle rod (2) is slidably connected with big rod (4), the surface of connecting cylinder (3) is sleeved with installation upper umbrella disc (5), the surface of small rod (1) is slidably connected with lower umbrella disc (6), and the bottom of lower umbrella disc (6) is installed with adjusting assembly; The buffer assembly includes a fixed cylinder (7) sleeved on the surface of the connecting cylinder (3), a limiting ring (8) slidably connected inside the fixed cylinder (7), the limiting ring (8) is slidably arranged on the surface of the connecting cylinder (3), the top of the limiting ring (8) and the top of the inner wall of the fixed cylinder (7) are connected by a buffer spring sleeved on the surface of the connecting cylinder (3), and the bottom of the limiting ring (8) is fixedly connected with a sleeve column, and the bottom of the sleeve column is fixedly connected with an abutting ring (9). The adjusting assembly includes a mounting ring (10) fixedly connected to the bottom of the lower umbrella disc (6), a gear ring (11) rotatably connected inside the mounting ring (10), a connecting gear (12) meshingly connected to the surface of the gear ring (11), a top end of a middle shaft of the connecting gear (12) rotatably connected to the top of the inner wall of the mounting ring (10), a worm gear (13) sleeved on the surface of the middle shaft of the connecting gear (12), and a worm gear (14) drivingly connected to the surface of the worm gear (13).
2. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, The bottom of the mounting ring (10) is fixedly connected with a square cover, one end of the worm gear (14) is rotatably connected to the inner wall of the square cover, a small bearing is mounted on the surface of the worm gear (14), the small bearing is rotatably connected to the inner wall of the square cover, and the one end of the worm gear (14) is fixedly connected with a hand wheel.
3. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, A rotating groove is formed in the inside of the mounting ring (10), and the gear ring (11) is rotatably connected in the rotating groove.
4. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, A semi-circular groove is formed in the inside of the mounting ring (10), and the connecting gear (12) is mounted in the semi-circular groove.
5. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, The surface of the small rod (1) and the surface of the middle rod (2) are both mounted with a limiting clamp, and the surface of the middle rod (2) and the surface of the big rod (4) are both provided with a limiting opening matched with the limiting clamp.
6. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, The gear ring (11) includes a rotating ring rotatably arranged in the rotating groove, and the surface of the rotating ring is fixedly connected with teeth at equal intervals, and the inner wall of the rotating ring is fixedly connected with a wear-resistant ring.
7. The full aluminum special-shaped middle rod of an umbrella according to claim 1, characterized in that, The cross sections of the big rod (4), the middle rod (2) and the small rod (1) all have two symmetrically arranged V-shaped edges, the two ends of the V-shaped edge of the big rod (4) are both fixedly connected with outer arc-shaped edges, the two ends of the V-shaped edge of the middle rod (2) are respectively fixedly connected with an outer arc-shaped edge and an inner arc-shaped edge, and the two ends of the V-shaped edge of the small rod (1) are both fixedly connected with inner arc-shaped edges. A protective sleeve is threadedly connected to the top of the small rod (1).