An automatic structure and umbrella capable of opening and closing with little effort

Abstract

This invention relates to the field of umbrella technology, and more particularly to an automatic structure and umbrella that saves effort in opening and closing. The automatic structure includes a main body, a movable button, a baffle assembly, and an H-shaped lever, with the H-shaped lever rotatably positioned between the movable button and the baffle assembly. This invention lowers the baffle assembly in the conventional automatic umbrella head, allowing the first spring to extend deeper into the umbrella head. This reduces the compression of the first spring, thus reducing the force required for the user to close the umbrella when compressing the same length of spring downwards, achieving effortless umbrella closing. Simultaneously, the distance between the baffle assembly and the original distance increases as the baffle assembly is lowered. A sliding component and a rotatable H-shaped lever are incorporated; when the sliding component moves downwards, it triggers the rotation of the H-shaped lever, thereby moving the baffle assembly and completing the automatic opening and closing process.

Description

Technical Field

[0001] This invention relates to the field of umbrella technology, and in particular to an automatic structure and umbrella that saves effort in opening and closing. Background Technology

[0002] Existing automatic umbrellas typically use an opening spring inside the center rod to provide the power to extend it, and a tension spring on each rib to provide the power to fold. Opening the umbrella is achieved by the opening spring releasing its elasticity, and closing it is achieved by the tension springs on the ribs releasing their elasticity. Closing the center rod stores energy for the opening. However, both pressing down on the center rod from the tail end and pulling down the bottom of the umbrella require considerable force, making it very inconvenient for the elderly, children, and those with weakened immune systems. Because the opening spring has strong elasticity, if the umbrella cannot be fully closed in one go, it can easily rebound and cause injury. Therefore, various effortless opening and closing umbrellas have appeared on the market.

[0003] For example, self-opening and closing umbrellas that prevent rebound, while having a central flap that closes and stops without rebounding, pose no safety issues for the elderly or children, still require the same amount of force to close the central flap.

[0004] For example, to increase the space after the umbrella opening spring retracts, it was changed from one spring to two. When opening and closing the umbrella, the two springs can overlap on the spring connecting sleeve, making opening more powerful and closing easier. However, this results in a more complex structure, higher assembly costs, and assembly difficulties that can lead to defects. Summary of the Invention

[0005] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an automatic structure and umbrella that saves effort in opening and closing. By moving the baffle assembly in the umbrella head of a conventional automatic umbrella downward, the first spring can extend deeper into the umbrella head. This increases the length of the first spring and reduces its compression. When compressing the same length of spring downward, the user needs to use less force, thus achieving the purpose of saving effort in closing the umbrella. As the baffle assembly moves downward, the distance between the baffle assembly and the active button increases. To accommodate the increased distance between them, a sliding assembly that can move up and down and a rotatable H-shaped lever are provided. When the sliding assembly moves downward, it triggers the H-shaped lever to rotate, thereby driving the baffle assembly to move and complete the automatic opening and closing process of the umbrella.

[0007] This invention provides an automatic structure for effortless opening and closing, including a main body, a movable button, a baffle assembly, and an H-shaped lever. The main body has a receiving cavity; the movable button is movably disposed within the main body and has a sliding assembly; the baffle assembly is disposed within the receiving cavity and located below the movable button; the H-shaped lever is rotatably disposed within the receiving cavity, and the H-shaped lever includes a rotating shaft disposed within the receiving cavity and two lever arms rotatably connected to the rotating shaft. The lever arm portion above the rotating shaft is a power arm, and the lever arm portion below the rotating shaft is a resistance arm. The power arm has a power arm protrusion, which can movably abut against the sliding assembly, and the two resistance arms abut against the baffle assembly.

[0008] This invention significantly extends the compression space of the first spring by moving the baffle assembly closer to the tip and tail of the umbrella, thereby reducing the degree of compression. When compressing the same length of spring downwards, the user needs to exert less force, achieving the purpose of effortless umbrella closure. In addition, because the baffle assembly is moved downwards, the distance between the sliding assembly above the baffle assembly and the baffle assembly is increased. Therefore, this invention sets an H-shaped lever between the sliding assembly and the baffle assembly, so that the H-shaped lever can play a movable connection between the sliding assembly and the baffle assembly. When the sliding assembly moves downwards, it triggers the H-shaped lever to rotate, thereby driving the baffle assembly to move and complete the automatic opening and closing process of the umbrella.

[0009] In some embodiments, the sliding assembly includes a slider spring, a second slide groove, and a slider. The movable button is provided with a first slide groove, and the slider has a second slide groove communicating with the first slide groove. One end of the slider spring is connected to the slider, and the other end of the slider spring passes through the second slide groove and the first slide groove and is connected to the movable button. Two slider protrusions are provided on the slider, and these two slider protrusions movably abut against the power arm protrusions. The main body seat is equivalent to the umbrella head in an umbrella. The provided receiving cavity is used to fix the position of the center rod. The laterally movable movable button is used to control the opening and closing of the umbrella. When the umbrella is closed, the lower part abuts against the sliding assembly, and the slider can be pressed down under the action of the sliding spring. The slider end is provided with a slider protrusion. In the original state, the slider protrusion abuts against the two power arm protrusions on the H-shaped lever power arm, causing the H-shaped lever to rotate slightly. When the pressing process occurs, the two protrusions disengage from the abutting state, the slider protrusion moves down, and the H-shaped lever returns to its original position.

[0010] In some embodiments, the baffle assembly includes a baffle, a baffle spring, and a U-shaped baffle sleeve. The baffle is movably disposed within the bottom of the baffle sleeve and connected to the main body seat via the baffle spring. The top of the baffle sleeve is a baffle arm, and the two baffle arms abut against the resistance arm. Under the action of the baffle spring, the baffle can move laterally. A hook of the automatic umbrella is fastened between the two baffle arms. The end of the baffle arm abuts against the end of the resistance arm. When the resistance arm moves, the baffle arm is pushed, the baffle spring is compressed, and the hook fixed between the two baffle arms is released. When the hook re-engages between the two baffle arms, the engagement process is smooth and does not cause the resistance arm to move due to the baffle spring.

[0011] In some embodiments, a button groove perpendicular to the extending direction of the receiving cavity is provided in the main body base. A movable button is disposed in the button groove. The movable button includes a U-shaped iron and a button spring. The U-shaped iron is movably connected to the main body base through the button spring. The button spring allows the U-shaped iron to move laterally, completing the latching process of the lower canopy when manually closing the umbrella. At the same time, the lateral movement of the movable button can change the contact state between the slider protrusion and the power arm protrusion, realizing the process of closing the umbrella canopy.

[0012] In some embodiments, the active button further includes an outer button, which is connected to the U-shaped iron and extends outside the receiving cavity. A first slide groove is disposed on the outer button, and a slider guide pin is also disposed inside the slider spring. The outer button extends outside the receiving cavity, allowing the user to touch it. The outer button is also connected to the sliding component and the U-shaped iron through the slider guide pin. When the outer button is pressed to automatically open the umbrella, the U-shaped iron moves, the lower nest disengages from the latching state and moves upward, the pressure against the sliding component disappears, and under the action of the slider spring, the slider protrusion moves upward and abuts against the power arm protrusion again, causing the H-shaped lever to rotate slightly.

[0013] The present invention also provides an automatic umbrella that is easy to open and close, including a central pole and an umbrella head with an automatic structure that is easy to open and close. A first spring and a bullet head are provided inside the central pole. The top end of the bullet head is located inside the first spring, and the bottom end of the bullet head can be engaged with a baffle to close the central pole.

[0014] In some embodiments, the central rod includes an inner tube, a middle tube, and an outer tube. The middle tube is sleeved outside the inner tube, and the outer tube is sleeved outside the middle tube. An upper nest is provided on the outer tube, and a lower nest is sleeved on the outer tube. A wedge block is provided on the outer tube, and an active button is engaged with the wedge block. The outer tube abuts against a sliding component. The central rod is equivalent to the central rod in a conventional manual folding umbrella and has several sections to complete the conventional folding and retraction function. The inner tube inside the middle tube is longer than the inner tube of a conventional automatic umbrella and is used to accommodate and protect the first spring, maintaining its stable movement. The inner tube extends to the baffle assembly inside the umbrella head, allowing the hook inside the first spring to engage with the baffle assembly. The outer tube is connected to the lower nest and is located below the lower nest. When the umbrella is closed, the lower nest is pulled down, and the outer tube abuts against the sliding component first, causing the sliding component to slide down. At the same time, the wedge block on the outer tube engages with the U-shaped iron on the sliding component, fixing the position of the outer tube and the lower nest.

[0015] In some embodiments, the first spring is disposed inside the inner tube.

[0016] In some embodiments, a pulley assembly is provided inside the upper canopy. The pulley assembly includes a pull rope, one end of which is connected to the upper canopy, and the other end of which extends through a first spring. A hook is provided at the other end of the pull rope, and the hook is engaged with the baffle assembly. The pulley assembly is a conventional configuration in existing automatic umbrellas. The pulley assembly includes a first pulley and a second pulley. The first pulley is located inside the upper canopy, and the second pulley is located inside the lower canopy. A pull rope is provided between the first pulley and the second pulley. One end of the pull rope is fixed to the upper canopy, passes around the second pulley located in the lower canopy, and then passes around the first pulley located in the upper canopy. After passing around the first pulley, the pull rope passes through the first spring, and its other end is engaged with the baffle assembly inside the umbrella head via the hook at its end. The baffle assembly can release the hook. The up and down movement of the hook synchronously realizes the up and down movement of the lower canopy. When the baffle assembly is engaged with the hook, the lower canopy is located at the top of the umbrella. When the baffle assembly releases the hook, the lower canopy falls a certain distance, simultaneously causing the umbrella surface to close.

[0017] In some embodiments, the umbrella also includes an umbrella frame, which includes an upper pull rod and a lower pull rod, with a second spring disposed between the upper and lower pull rods. Conventional automatic umbrellas have a second spring for closing the umbrella between the upper and lower pull rods of the umbrella frame. The number of second springs is the same as the number of umbrella ribs. When closing the umbrella, the user presses a button, and the lower canopy falls a certain distance along the center rod. Under the action of the second spring, the upper pull rod retracts, folding the entire umbrella canopy. The user then pulls the fallen lower canopy to the umbrella tip to fasten it, completing the entire closing process.

[0018] By adopting the above technical solution, the beneficial effects of the present invention are:

[0019] This invention lowers the position of the baffle assembly in the umbrella head of a conventional automatic umbrella, allowing the first spring to extend deeper into the umbrella head. This increases the length of the first spring and reduces its compression. When compressing the same length of spring downwards, the user needs to exert less force, thus achieving the purpose of effortless umbrella closing. As the baffle assembly is lowered, the distance between the baffle assembly and the active button increases. To accommodate this increased distance, a sliding assembly that can move up and down and a rotatable H-shaped lever are provided. When the sliding assembly moves down, it triggers the H-shaped lever to rotate, thereby moving the baffle assembly and completing the automatic opening and closing process of the umbrella.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0021] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0022] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0024] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the umbrella head in some embodiments of the present invention;

[0027] Figure 2 This is a cross-sectional schematic diagram of the umbrella head structure in some embodiments of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the umbrella head when the umbrella is opened in some embodiments of the present invention;

[0029] Figure 4This is a schematic diagram of the internal structure of the umbrella head when the umbrella canopy is closed in some embodiments of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the umbrella head during manual umbrella closing in some embodiments of the present invention;

[0031] Figure 6 This is a schematic diagram of the overall structure of the umbrella when folded in some embodiments of the present invention;

[0032] Figure 7 This is a schematic diagram of the middle rod structure in some embodiments of the present invention;

[0033] Figure 8 This is a test diagram of the umbrella-closing force in Embodiment 2 of the present invention;

[0034] Figure 9 This is a test diagram of the umbrella-closing force in Comparative Example 1 of the present invention;

[0035] Figure 10 This is a test diagram of the umbrella-closing force in Comparative Example 2 of the present invention.

[0036] Description of main reference numerals:

[0037] 1. Umbrella tip;

[0038] 11. Main body base;

[0039] 12. Receiving cavity;

[0040] 13. Activity button;

[0041] 131. U-shaped iron; 132. Button spring; 133. External button;

[0042] 14. Sliding component;

[0043] 141. Slider spring; 142. Slider; 143. Slider guide pin; 144. Slider protrusion;

[0044] 15. H-type lever;

[0045] 151. Rotating shaft; 152. Lever arm; 153. Power arm protrusion;

[0046] 16. Baffle assembly;

[0047] 161. Baffle plate; 162. Baffle plate spring;

[0048] 2. Medium bat;

[0049] 21. Inner tube; 22. Middle tube; 23. Outer tube;

[0050] 3. Go to the nest;

[0051] 4. Pulley assembly;

[0052] 41. Pull rope; 42. Hook;

[0053] 5. Descending from the nest;

[0054] 6. Umbrella frame;

[0055] 7. First spring. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0057] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 limitations on this invention.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Example 1

[0061] This embodiment provides an automatic structure for easy opening and closing. The automatic structure includes a main body 11, a movable button 13, a baffle assembly 16, and an H-shaped lever 15. The main body 11 has a receiving cavity 12; the movable button 13 is movably disposed within the main body 11, and a sliding assembly 14 is provided on the movable button 13; the baffle assembly 16 is disposed within the receiving cavity 12 and located below the movable button 13; the H-shaped lever 15 is rotatably disposed within the receiving cavity 12.

[0062] in,

[0063] The H-type lever 15 includes a rotating shaft 151 disposed in the receiving cavity 12 and two lever arms 152 rotatably connected to the rotating shaft 151. The part of the lever arm 152 above the rotating shaft 151 is the power arm, and the part of the lever arm 152 below the rotating shaft 151 is the resistance arm. The power arm is provided with a power arm protrusion 153. The two power arm protrusions 153 can move and abut against the sliding assembly 14, and the two resistance arms abut against the baffle assembly 16.

[0064] The sliding assembly 14 includes a slider spring 141, a second slide groove, and a slider 142. The movable button 13 is provided with a first slide groove, and the slider 142 is provided with a second slide groove that communicates with the first slide groove. One end of the slider spring 141 is connected to the slider 142, and the other end of the slider spring 141 passes through the second slide groove and the first slide groove and is connected to the movable button 13. Two slider protrusions 144 are provided on the slider 142, and the two slider protrusions 144 move in contact with the power arm protrusion 153. The main body 11 is equivalent to the umbrella head 1 in the umbrella. The receiving cavity 12 is used to fix the position of the center rod 2. The movable button 13 is used to control the opening and closing of the umbrella. When the umbrella is closed, the lower nest 5 abuts against the sliding component 14. Under the action of the sliding spring, the slider 142 can be pressed down. The end of the slider 142 is provided with a slider protrusion 144. In the original state, the slider protrusion 144 abuts against the two power arm protrusions 153 on the power arm of the H-type lever 15, causing the H-type lever 15 to rotate slightly. When the pressing process occurs, the two protrusions are disengaged from the abutting state, the slider protrusion 144 moves down, and the H-type lever 15 returns to its original position.

[0065] The baffle assembly 16 includes a baffle 161, a baffle spring 162, and a U-shaped baffle 161 sleeve. The baffle 161 is movably disposed within the bottom of the baffle 161 sleeve and connected to the main body 11 via the baffle spring 162. The top of the baffle 161 sleeve is a baffle arm, and the two baffle arms abut against the resistance arm. Under the action of the baffle spring 162, the baffle 161 can move laterally. The hook 42 of the automatic umbrella is fastened between the two baffle arms. The end of the baffle arm abuts against the end of the resistance arm. When the resistance arm moves, the baffle arm is pushed, the baffle spring 162 is compressed, and the hook 42 fixed between the two baffle arms is released. When the hook 42 is re-engaged between the two baffle arms, the engagement process is smooth and does not cause the resistance arm to move due to the baffle spring 162.

[0066] The main body 11 has a button groove perpendicular to the extending direction of the receiving cavity 12. A movable button 13 is located within this groove. The movable button 13 includes a U-shaped iron 131 and a button spring 132. The U-shaped iron 131 is movably connected to the main body 11 via the button spring 132. The button spring 132 allows the U-shaped iron 131 to move laterally, completing the latching process of the lower canopy 5 during manual umbrella closure. Simultaneously, the lateral movement of the movable button 13 changes the contact state between the slider protrusion 144 and the power arm protrusion 153, thus enabling the umbrella to close. The movable button 13 also includes an outer button 133, which is connected to the U-shaped iron 131 and extends outside the receiving cavity 12. A first sliding groove is located on the outer button 133, and a slider guide pin 143 is also provided within the slider spring 141. The outer button 133 extends outside the receiving cavity 12, allowing the user to touch it. The outer button 133 is also connected to the sliding component 14 and the U-shaped iron 131 via the slider guide pin 143. When the outer button 133 is pressed to open the umbrella automatically, the U-shaped iron 131 moves, the lower nest 5 disengages from the latching state and moves upward, the pressure against the sliding component 14 disappears, and under the action of the slider spring 141, the slider protrusion 144 moves upward and contacts the power arm protrusion 153 again, and the H-shaped lever 15 rotates slightly.

[0067] In this embodiment, by moving the position of the baffle assembly 16 closer to the tail of the umbrella head 1, the contraction space of the first spring 7 is greatly extended, thereby reducing the degree of compression. When compressing the spring of the same length downward, the user needs to use less force, achieving the purpose of saving effort in closing the umbrella. In addition, since the position of the baffle assembly 16 is moved downward, the distance between the sliding assembly 14 above the baffle assembly 16 and the baffle assembly 16 is increased. Therefore, by setting an H-shaped lever 15 between the sliding assembly 14 and the baffle assembly 16, the present invention can make the H-shaped lever 15 play a movable connection role between the sliding assembly 14 and the baffle assembly 16. When the sliding assembly 14 moves downward, it triggers the H-shaped lever 15 to rotate, thereby driving the baffle assembly 16 to move and complete the automatic opening and closing process of the umbrella.

[0068] Example 2

[0069] This embodiment provides an automatic umbrella that is easy to open and close. The automatic umbrella includes a central pole 2 and an umbrella head 1 with an automatic structure that is easy to open and close. A first spring 7 and a bullet head are provided inside the central pole 2. The top end of the bullet head is located inside the first spring 7, and the bottom end of the bullet head can be engaged with a baffle 161 to close the central pole 2.

[0070] in,

[0071] The automatic opening and closing mechanism that saves effort includes a main body 11, an active button 13, a baffle assembly 16, and an H-shaped lever 15. The main body 11 has a receiving cavity 12; the active button 13 is movably disposed within the main body 11, and a sliding assembly 14 is provided on the active button 13; the baffle assembly 16 is disposed within the receiving cavity 12 and located below the active button 13; the H-shaped lever 15 is rotatably disposed within the receiving cavity 12.

[0072] The H-type lever 15 includes a rotating shaft 151 disposed in the receiving cavity 12 and two lever arms 152 rotatably connected to the rotating shaft 151. The part of the lever arm 152 above the rotating shaft 151 is the power arm, and the part of the lever arm 152 below the rotating shaft 151 is the resistance arm. The power arm is provided with a power arm protrusion 153. The two power arm protrusions 153 can move and abut against the sliding assembly 14, and the two resistance arms abut against the baffle assembly 16.

[0073] The sliding assembly 14 includes a slider spring 141, a second slide groove, and a slider 142. The movable button 13 is provided with a first slide groove, and the slider 142 is provided with a second slide groove that communicates with the first slide groove. One end of the slider spring 141 is connected to the slider 142, and the other end of the slider spring 141 passes through the second slide groove and the first slide groove and is connected to the movable button 13. Two slider protrusions 144 are provided on the slider 142, and the two slider protrusions 144 move in contact with the power arm protrusion 153.

[0074] The baffle assembly 16 includes a baffle 161, a baffle spring 162, and a U-shaped baffle 161 sleeve. The baffle 161 is movably disposed inside the bottom of the baffle 161 sleeve and is connected to the main body seat 11 through the baffle spring 162. The top of the baffle 161 sleeve is a baffle arm, and the two baffle arms abut against the resistance arm.

[0075] The main body 11 has a button slot perpendicular to the extending direction of the receiving cavity 12. A movable button 13 is disposed within this slot. The movable button 13 includes a U-shaped iron 131 and a button spring 132. The U-shaped iron 131 is movably connected to the main body 11 via the button spring 132. The movable button 13 also includes an outer button 133, which is connected to the U-shaped iron 131 and extends outside the receiving cavity 12. A first sliding groove is disposed on the outer button 133, and a slider guide pin 143 is also disposed within the slider spring 141.

[0076] Furthermore,

[0077] The central rod 2 includes an inner tube 21, a middle tube 22, and an outer tube 23. The middle tube 22 is fitted over the inner tube 21, and the outer tube 23 is fitted over the middle tube 22. An upper nest 3 is provided on the outer tube 23, and a lower nest 5 is fitted over the outer tube 23. A wedge-shaped block is provided on the outer tube 23. The movable button 13 is engaged with the wedge-shaped block, and the outer tube 23 abuts against the sliding component 14. The central rod 2 is equivalent to the central rod 2 in a conventional manual folding umbrella, and it is set with several sections to complete the conventional folding and retraction function. The inner tube 21 inside the central tube 22 is longer than that of a conventional automatic umbrella inner tube 21, serving to house and protect the first spring 7 and maintain its stable movement. The inner tube 21 extends to the baffle assembly 16 inside the umbrella head 1, allowing the hook 42 inside the first spring 7 to engage with the baffle assembly 16. The outer tube 23 is connected to the lower nest 5 and positioned below it. When the umbrella is closed, the lower nest 5 is pulled down, and the outer tube 23 first contacts the sliding assembly 14, causing the sliding assembly 14 to slide down. Simultaneously, the wedge-shaped block on the outer tube 23 engages with the U-shaped iron 131 on the sliding assembly 14, fixing the positions of the outer tube 23 and the lower nest 5. The first spring 7 is housed inside the inner tube 21.

[0078] The upper nest 3 is equipped with a pulley assembly 4, which includes a pull rope 41. One end of the pull rope 41 is connected to the upper nest 3, and the other end of the pull rope 41 extends through the first spring 7. The other end of the pull rope 41 is equipped with a hook 42, which is engaged on the baffle assembly 16. The pulley assembly 4 is a standard feature in existing automatic umbrellas. The pulley assembly 4 includes a first pulley and a second pulley. The first pulley is located inside the upper nest 3, and the second pulley is located inside the lower nest 5. A pull rope 41 is provided between the first pulley and the second pulley. One end of the pull rope 41 is fixed to the upper nest 3, passes around the second pulley located in the lower nest 5, and then passes around the first pulley located in the upper nest 3. After passing around the first pulley, the pull rope 41 passes through the first spring 7, and its other end is hooked to the baffle assembly 16 inside the umbrella head 1 through the hook 42 at the end. The baffle assembly 16 can release the hook 42. The up and down movement of the hook 42 can synchronously realize the up and down movement of the lower nest 5. When the baffle assembly 16 is hooked to the hook 42, the lower nest 5 is located at the top of the umbrella. When the baffle assembly 16 releases the hook 42, the lower nest 5 falls a certain distance, and at the same time, it drives the umbrella surface to close.

[0079] The umbrella frame 6 includes an upper pull rod and a lower pull rod, with a second spring installed between them. Conventional automatic umbrellas have a second spring added between the upper and lower pull rods of the umbrella frame 6 for closing the umbrella. The number of second springs is the same as the number of umbrella ribs. When closing the umbrella, the user presses a button, and the lower canopy 5 falls a certain distance along the central rod 2. Driven by the second spring, the upper pull rod retracts, folding the entire umbrella surface. The user then pulls the fallen lower canopy 5 to the umbrella head 1 to fasten it, completing the entire closing process.

[0080] Comparative Example 1

[0081] This comparative example is a self-opening and closing parachute designed to prevent rebound. When closing the parachute, the center rod can stop as it closes.

[0082] Comparative Example 2

[0083] This comparative example is an automatic umbrella with two springs, which can overlap on the spring connecting sleeve when the umbrella is opened and closed.

[0084] umbrella closing force test

[0085] The umbrella-closing strength of Example 2, Comparative Example 1, and Comparative Example 2 was tested using a benchtop electric universal testing machine (model TH-8201A). The test data are shown in the table below. Figure 8-10 :

[0086]

[0087] As can be clearly seen from the table above, the maximum umbrella-closing force required in Example 2 is only 4.740 kgf, while the maximum umbrella-closing force required in Comparative Example 1 is 7.685 kgf and the maximum umbrella-closing force required in Comparative Example 2 is 6.170 kgf. The maximum umbrella-closing force of Example 2 is much lower than that of Comparative Example 1 and Comparative Example 2, which indicates that the umbrella-closing force of Example 2 is greatly reduced and has a strong labor-saving effect.

[0088] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0089] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0090] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An automatic structure for easy opening and closing, characterized in that, include The main body has a receiving cavity inside; An active button is located within the main body, and the active button is equipped with a sliding component. A baffle assembly is disposed within the receiving cavity and located below the active button; The H-shaped lever is rotatably disposed within the receiving cavity. The H-shaped lever includes a rotating shaft disposed within the receiving cavity and two lever arms rotatably connected to the rotating shaft. The lever arm portion above the rotating shaft is the power arm, and the lever arm portion below the rotating shaft is the resistance arm. The power arm is provided with a power arm protrusion. The two power arm protrusions can move and abut against the sliding assembly, and the two resistance arms abut against the baffle assembly. The sliding assembly includes a slider spring, a second slide groove, and a slider. The movable button is provided with a first slide groove, and the slider is provided with a second slide groove that communicates with the first slide groove. One end of the slider spring is connected to the slider, and the other end of the slider spring passes through the second slide groove and the first slide groove and is connected to the movable button. The slider is provided with two slider protrusions, and the two slider protrusions move in contact with the power arm protrusion.

2. The automatic opening and closing structure for labor-saving operation according to claim 1, characterized in that, The baffle assembly includes a baffle, a baffle spring, and a U-shaped baffle sleeve. The baffle is movably disposed inside the bottom of the baffle sleeve and connected to the main body seat through the baffle spring. The top of the baffle sleeve is a baffle arm, and the two baffle arms abut against the resistance arm.

3. The automatic opening and closing structure for labor-saving operation according to claim 1, characterized in that, The main body is provided with a button slot perpendicular to the extension direction of the receiving cavity. The movable button is disposed in the button slot. The movable button includes a U-shaped iron and a button spring. The U-shaped iron is movably connected to the main body through the button spring.

4. The automatic opening and closing structure for labor-saving operation according to claim 3, characterized in that, The active button also includes an outer button, which is connected to the U-shaped iron and extends to the outside of the receiving cavity. The first slide groove is disposed on the outer button, and a slide guide pin is also disposed inside the slide spring.

5. An automatic umbrella that saves effort in opening and closing, characterized in that, The umbrella includes a central rod and an umbrella head having an automatic opening and closing structure as described in any one of claims 1-4. The central rod is provided with a first spring and a bullet head. The top end of the bullet head is disposed in the first spring, and the bottom end of the bullet head can be engaged with the baffle to close the central rod.

6. The automatic umbrella for effortless opening and closing according to claim 5, characterized in that, The central rod includes an inner tube, a middle tube, and an outer tube. The middle tube is sleeved outside the inner tube, and the outer tube is sleeved outside the middle tube. An upper cavity is provided on the outer tube, and a lower cavity is provided on the outer tube. A wedge-shaped block is provided on the outer tube, and the movable button is engaged with the wedge-shaped block. The outer tube abuts against the sliding component.

7. The automatic umbrella for effortless opening and closing according to claim 6, characterized in that, The first spring is located inside the inner tube.

8. The automatic umbrella for effortless opening and closing according to claim 6, characterized in that, The upper nest is equipped with a pulley assembly, which includes a pull rope. One end of the pull rope is connected to the upper nest, and the other end of the pull rope extends through the first spring. The other end of the pull rope is equipped with a hook, which is engaged with the baffle assembly.

9. The automatic umbrella for effortless opening and closing according to claim 5, characterized in that, It also includes an umbrella frame, which includes an upper pull rod and a lower pull rod, with a second spring provided between the upper pull rod and the lower pull rod.

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