A light energy-saving umbrella capable of being opened and closed automatically and tightened by electricity

Abstract

The present application relates to a kind of electric full-automatic opening and closing and tightening light energy-saving umbrella, comprising: umbrella rib mechanism, including primary umbrella rib, support umbrella rib, secondary umbrella rib and slidable flat ring;Umbrella stem mechanism, including primary rod, secondary rod and tertiary rod can be nested and slid, and sliding block and rod cap;Primary rod is equipped with primary rod pulley and nesting limit, secondary rod is equipped with secondary rod pulley installation and nesting limit and top block lifting device, tertiary rod is equipped with tertiary rod pulley installation and nesting limit;Drive mechanism;Tightening mechanism, including tightening line, top block and compression spring, top block is installed on rod cap, one end of tightening line is fixed on top block, the other end is sequentially threaded through the lead line groove on rod cap, the lead line ring on support umbrella rib and primary umbrella rib, and then connected to the lead line ring on slidable flat ring on secondary umbrella rib.Compared with prior art, the present application automatically opens and closes and automatically tightens umbrella rib, structure is simplified, energy saving, power failure / failure time supports manual operation.

Description

Technical Field

[0001] This invention relates to the field of umbrella structure technology, and in particular to a lightweight, energy-saving umbrella that is electrically powered, fully automatic in opening and closing. Background Technology

[0002] Currently, the most common folding umbrellas on the market are mainly divided into two categories: purely manual folding umbrellas and electric automatic folding umbrellas.

[0003] 1. Manually folding umbrella Manually folding umbrellas are currently the most common type. Their shafts typically employ a multi-section nested structure, relying on manual pushing to extend and retract the shaft. Elastic components (such as tension springs) on the ribs assist in opening and closing the canopy. This type of umbrella is simple in structure, inexpensive, and lightweight, but it requires both hands to operate, making it extremely inconvenient to use in situations such as getting in and out of vehicles in the rain or carrying items.

[0004] 2. Electric automatic folding umbrella To address the inconvenience of operating manual umbrellas, electrically powered automatic folding umbrellas have emerged in recent years. Current electrically powered automatic folding umbrellas typically employ one or a combination of the following technologies: Motor-driven lead screw / nut mechanism: A threaded rod and nut are installed inside the umbrella pole. The rotation of the motor drives the nut to move along the threaded rod, thereby pushing the umbrella pole to extend or retract.

[0005] Motor-driven compression spring energy storage mechanism: A high-stiffness compression spring is nested inside the umbrella pole. When the motor works, it compresses the spring to store potential energy. When the umbrella opens, the potential energy is released to make the umbrella pole spring open.

[0006] Motor-driven rack and pinion mechanism: A rack is set on the outside or inside of the umbrella pole, and the motor drives the rack through gear meshing to achieve extension and retraction.

[0007] The aforementioned types of electric automatic folding umbrellas usually also need to be equipped with umbrella rib springs to ensure that the umbrella canopy is taut when unfolded and to assist in folding when closed.

[0008] The shortcomings of existing technologies: 1. Unable to automatically tighten umbrella ribs Current electric umbrellas can only retract the umbrella pole when closing, but cannot automatically close the umbrella ribs to fit snugly against the pole. Because the umbrella rib linkage mechanism still has a large amount of free movement after closing to its limit position (i.e., the linkage dead zone), the umbrella canopy is still loose and bulky after closing. Users still need to manually tidy up the umbrella ribs one by one before putting it into a storage bag or umbrella box, which is especially inconvenient when entering confined spaces such as vehicles and shopping malls on rainy days.

[0009] 2. Weight To achieve automatic opening and closing, existing electric umbrellas require the addition of numerous mechanical components, such as lead screws, compression springs, racks, and reinforced outer poles, inside or outside the umbrella shaft. Additionally, tension springs are installed on the umbrella ribs, resulting in an overall weight far exceeding that of manually folding umbrellas, making them quite heavy to carry.

[0010] 3. High energy consumption In existing technologies, many electric umbrellas rely on high-stiffness springs to store potential energy to assist in opening or closing the umbrella. The motor needs to overcome the spring's reaction force to do work, resulting in significant energy loss. In addition, some electric umbrellas require the motor to remain powered on for self-locking after the umbrella is fully opened or closed to maintain its state, further exacerbating energy consumption and shortening battery life.

[0011] 4. Complex structure and high failure rate Existing electric umbrellas integrate a variety of precision transmission components, such as lead screws, nuts, compression springs, gears, and racks, within a narrow umbrella shaft. This results in a complex structure and difficult assembly. Over long-term use, these components are prone to wear, jamming, and spring fatigue failure, leading to a high failure rate and difficult maintenance.

[0012] 5. Difficulty in controlling dimensions Because longer transmission components such as lead screws and compression springs need to be installed inside the umbrella shaft, the diameter and number of sections of existing electric umbrella shafts are often larger than those of ordinary manual umbrellas, resulting in a larger overall size after storage and reduced portability.

[0013] 6. Cannot be used when the power is low (underpowered). Most existing electric umbrellas rely on motor self-locking or electromagnetic brakes to keep the umbrella open or closed. Once the battery is depleted, it cannot be operated electrically or manually, causing the umbrella to completely lose its function and causing great inconvenience to users.

[0014] CN202121192920.X discloses an electric telescopic device for an electric umbrella, relating to the field of umbrella technology. It includes an umbrella handle and a center rod. The handle houses a micro motor, battery, opening gear, a first closing gear, a second closing gear, an opening hinge, and a closing hinge. A switch is located outside the handle. The center rod includes a three-stage telescopic tube and a first support rod, a first support block, a slider, a second support rod, a second support block, a third support rod, a third support block, a first pull cord, and a second pull cord, all housed within the three-stage telescopic tube. However, it lacks an automatic rib tightening mechanism. When closing the umbrella, after the center rod retracts, the ribs fold only due to the retraction of the lower rib. Affected by the dead zone of the rib connecting rod, the secondary ribs cannot actively contact the umbrella pole, resulting in a loose, outward-folding canopy after folding. Users must manually arrange each rib individually before placing it in an umbrella bag or box, which is inconvenient. Furthermore, the two pull cords in this prior art are wound around different hinges with different extension and retraction strokes, requiring different linear speeds for the extension and retraction hinges, making the wiring and transmission complex. Summary of the Invention

[0015] The purpose of this invention is to overcome the defects of the prior art and provide a lightweight, energy-saving umbrella that is electrically powered, fully automatic in opening and closing, with automatic opening and closing of the umbrella ribs. It is lightweight, has a simplified structure, is energy-saving, and supports manual operation when the power is low or there is a malfunction.

[0016] The objective of this invention can be achieved through the following technical solutions: This invention provides a lightweight, energy-saving umbrella that is electrically powered, fully automatic in opening and closing, comprising: The umbrella rib mechanism includes a primary umbrella rib, a supporting umbrella rib, a secondary umbrella rib, and a sliding flat ring. The connection between the supporting umbrella rib and the primary umbrella rib and the lower part of the primary umbrella rib are respectively provided with rotatable guide rings. The lower half of the secondary umbrella rib is provided with a sliding flat ring, and a guide ring is provided outside the sliding flat ring. The umbrella pole mechanism includes a first-stage pole, a second-stage pole, and a third-stage pole that can be nested and slidably connected to each other, as well as a slider slidably mounted on the third-stage pole and a pole cap mounted on the upper end of the third-stage pole; the first-stage pole is provided with a first-stage pole pulley and a nesting limiter, the second-stage pole is provided with a second-stage pole lower pulley mounting hole, a second-stage pole pulley mounting and nesting limiter, and a top block lifting device for linkage with a tightening mechanism, and the third-stage pole is provided with a third-stage pole pulley mounting and nesting limiter, and a third-stage pole lower pulley mounting hole; The drive mechanism includes a base, a drive motor, a post, a drive gear set, a drive wire assembly, and a switch assembly. The drive gear set includes a first drive gear, a second drive gear, and a third drive gear. One end of the drive wire assembly is fixed to the post, and the other end passes through pulleys on the first-stage rod, the second-stage rod, and the third-stage rod in sequence before connecting to the drive wire connection hole on the slider. The switch assembly is used to lock the first drive gear in a directional manner and control the forward and reverse rotation of the drive motor. The tightening mechanism includes a tightening line, a top block, and a compression spring. The top block is mounted on the pole cap. One end of the tightening line is fixed to the top block, and the other end passes through the wire groove on the pole cap, the wire ring on the supporting rib and the first-level rib in sequence, and then connects to the wire ring on the sliding flat ring on the second-level rib. During the umbrella closing process, when the secondary pole moves upward, it pushes the top block through the top block lifting device, which tightens the tensioning line and pulls the secondary umbrella ribs towards the pole cap.

[0017] Furthermore, the first-level rod pulley on the first-level rod and the nested limiting end protrude downwards, and when the umbrella opens, it contacts the second-level rod opening limiting on the second-level rod, thereby realizing the opening limiting between the first-level rod and the second-level rod.

[0018] Furthermore, the secondary rod is provided with a tertiary rod opening limiter, which is used to cooperate with the tertiary rod nesting limiter on the tertiary rod to realize the opening limit between the secondary rod and the tertiary rod.

[0019] Furthermore, the drive line assembly includes a lower drive line and an upper drive line, and the drive line connection hole provided on the slider is used to connect the upper drive line and the lower drive line.

[0020] Furthermore, the drive line assembly achieves equal-length synchronous movement through the extension and retraction of the line post. The lower drive line and the upper drive line start from the line post and connect to the slider through specific different paths, ensuring that the two drive lines move at the same length during the extension and retraction of the umbrella pole, without knotting or tangling.

[0021] Furthermore, the top block includes a top block cover plate, a compression spring, a top block side plate, and a top block center column. The top block is provided with a fixing hole for installing a tightening wire and a wire groove for installing a wire rod. The outer dimensions of the top block side plate and the top block cover plate are the same as the outer dimensions of the secondary rod.

[0022] Furthermore, the base is provided with a base post for inserting the lower end of the first-stage rod, a drive line limiting post hole for installing the guide shaft, a line post mounting hole and a line post shaft hole for installing the line post, a drive gear mounting hole for installing the drive gear set, a first drive line through hole and a second drive line through hole for the drive line to pass through, and a first-stage rod mounting groove for accommodating the first-stage rod; the base is also provided with a battery mounting surface.

[0023] Furthermore, the switch assembly includes a switch base, a switch card, and a switch button; the switch assembly can slide the switch button left and right, causing the switch cards on both sides to move to opposite heights, thereby directionally locking the first drive gear, realizing the mechanical locking of the umbrella at any opening or closing position, and the umbrella can be manually opened in the power-off state.

[0024] Furthermore, it also includes an umbrella box, which is open at both the top and bottom and equipped with a removable cover. The umbrella box has an outer wall, an inner wall and a connecting key. The bottom of the umbrella box has a bottom plate with drainage holes and an extension for installing the bottom cover.

[0025] Furthermore, it also includes a grip housing, which has a primary rod through hole, a drive wire through hole, and a switch button mounting and limiting hole.

[0026] The drive mechanism also includes a base cover plate, which includes a side cover plate of the fixed seat and a bottom cover plate of the fixed seat.

[0027] The first-stage pole has a rectangular cross-section with rounded corners on one side and recessed corners on the other. The rounded corners are used to reduce the discomfort of leaning against the body when holding an umbrella, and the recessed corners are used to reduce the overall size when the pulleys are installed on the upper part of the second-stage pole.

[0028] Working principle: Two drive lines are wound around a pulley system within a three-tiered nested umbrella pole and connected to a slider. The automatic opening and closing of the umbrella pole is achieved by the synchronous extension and retraction of the drive lines. I. The process of opening the umbrella Press the switch button, and the drive motor will rotate forward, which will drive the thread column to rotate in the same direction through the drive gear set; the thread column will simultaneously release the lower drive wire and retract the upper drive wire. The drive line first pulls the slider upward along the third-level rod, and the slider pushes the second-level rod to extend relative to the third-level rod; the second-level rod continues to move upward, and the second-level rod opens to contact the first-level rod pulley and the lower end of the nested limit protrusion, causing the first-level rod to extend relative to the second-level rod; the first, second, and third-level rods unfold to the limit position in sequence; After the umbrella pole is fully extended, the slider continues to move upward, causing the supporting umbrella ribs to extend outward, and the umbrella rib mechanism opens and spreads the umbrella surface in conjunction. Once the umbrella is in position, toggle the switch button to lock the first drive gear, de-energize the motor, and mechanically lock the umbrella in the open state.

[0029] II. Umbrella Closing Process When the reverse toggle switch button is pressed to release the lock, the drive motor reverses, and the column rotates in the opposite direction. The drive line first pulls the slider down along the three-stage rod. The slider drives the supporting umbrella ribs to retract inward, and the umbrella ribs fold and close, thus unloading the load on the umbrella surface. After the umbrella surface is closed, the slider continues to descend, sequentially driving the first-level rod to retract into the second-level rod, and then driving the second-level rod to retract into the third-level rod, while the third-level rod remains fixed to the base; Once fully closed, the switch card mechanically locks the mechanism again, de-energizing the motor.

[0030] The principle behind the automatic tightening of the umbrella ribs during the closing process: In traditional three-fold umbrellas, after the slider reaches its downward limit, the secondary ribs still have significant leeway due to the dead zone of the connecting rod, preventing them from automatically closing. This invention solves this problem by adding a tightening mechanism: Preset state of the tightening mechanism: The compression spring is sleeved on the center column of the top block, so that the top block is slightly lower than the top of the second-stage rod in its natural state; When closing the umbrella: the second-stage pole moves upward with the umbrella pole as it retracts. Relative to the stationary third-stage pole / pole cap, when the top block lifting device contacts the bottom surface of the top block, it overcomes the resistance of the compression spring and lifts the top block upward. The top block moves upward, causing the tightening line wrapped around it to be tightened. One end of the tightening line is fixed to the top block, and then passes through the wire groove, the supporting rib, and the wire ring on the first-level rib in sequence, and is finally fixed to the sliding flat ring of the second-level rib. After the tensioning line is tightened, the secondary umbrella ribs are actively pulled towards the pole cap to overcome the looseness caused by the dead zone of the connecting rod and make the umbrella ribs fit tightly against the umbrella pole. When the umbrella opens: the secondary rod moves down and disengages from the top block, the compression spring resets and the top block falls, the tension line loosens, and the umbrella ribs open normally.

[0031] Compared with the prior art, the present invention has the following advantages: (1) Fully automatic opening and closing and automatic tightening of umbrella ribs. The top block lifting device at the upper end of the secondary pole lifts the spring-loaded top block when closing the umbrella, tightens the tightening line, and actively pulls the secondary umbrella ribs toward the pole cap to overcome the problem of loose umbrella ribs caused by the dead zone of the connecting rod. After closing, the umbrella ribs automatically adhere to the pole and tighten, making it easy to insert directly into the umbrella box for storage. It is especially suitable for entering small spaces such as cars on rainy days.

[0032] (2) Lightweight and simplified structure. It abandons the energy storage and weight-adding components commonly used in traditional electric / automatic umbrellas, such as the internal compression spring of the umbrella pole, the threaded push rod, the outer reinforcing rod, and the umbrella rib tension spring. It only adopts a line-drive structure with a three-level nested rectangular pole, pulley, flexible drive line, and slider. The overall weight is only slightly increased compared to ordinary manual three-fold umbrellas, and significantly lighter than existing mechanical or electric folding umbrellas.

[0033] (3) Energy saving. The umbrella can be kept in place even after power is cut off. By using a switch card, switch base, and switch button, the drive gear can be locked in a directional manner after the umbrella is opened or closed, achieving a mechanical lock similar to a ratchet. The state of the umbrella is maintained by the mechanical structure, without the need for the motor to continuously output torque or consume power for self-locking, which significantly saves energy and extends the battery life.

[0034] (4) Manual operation is supported when the battery is low or malfunctioning. Since the status is not dependent on the motor self-locking and the drive line is a flexible rope with the rod that can rotate freely (after unlocking the switch card), the umbrella can still be opened and closed by pushing and pulling the slider when the battery is low or no power is available, which improves the practicality and reliability.

[0035] (5) Simple structure. No winding design. The upper and lower drive lines are of equal length and are wound and unwound synchronously. They are connected to the same slider through the preset pulleys in the first-level rod, second-level rod, and third-level rod. The mounting holes of the wire posts on the base and the limit post holes of the drive lines allow the two drive lines to run separately, avoiding knots, tangling, or squeezing into narrow gaps that would prevent opening and closing. The structure is simple and does not require high assembly precision. Attached Figure Description

[0036] Figure 1 Schematic diagram of a lightweight, energy-saving umbrella that opens and closes automatically via electric motor. Figure 1 ; Figure 2 Schematic diagram of a lightweight, energy-saving umbrella that opens and closes automatically via electric motor. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a single-stage rod; Figure 4 This is a schematic diagram of the secondary rod structure; Figure 5 This is a schematic diagram of a three-stage rod structure; Figure 6 This is a top view of the second-stage bar; Figure 7 This is a top view of a three-stage bar. Figure 8 This is a schematic diagram of the slider's structure; Figure 9 This is the top view of the slider; Figure 10 This is a schematic diagram of the pole cap structure; Figure 11 This is a bottom view of the umbrella pole mechanism; Figure 12 This is a top view of the umbrella pole mechanism; Figure 13 This is a side view of the umbrella pole mechanism; Figure 14 This is a schematic diagram of the top block structure; Figure 15 This is a structural diagram of the top block and the rod cap; Figure 16 This is a schematic diagram of the base structure; Figure 17 This is a side view of the base; Figure 18 This is a top view of the base; Figure 19 This is a bottom view of the base; Figure 20 Schematic diagram of the drive mechanism Figure 1 ; Figure 21 Schematic diagram of the drive mechanism Figure 2 ; Figure 22 Schematic diagram of the drive mechanism Figure 3 ; Figure 23 This is a schematic diagram of the linear column structure; Figure 24 This is a schematic diagram of the switch assembly. Figure 25 This is a schematic diagram of the grip shell structure; Figure 26 This is a structural diagram of the umbrella box; Figure 27 This is a perspective view of the umbrella box. Figure 28 This is a top view of the umbrella box; Figure 29 This is a side perspective view of the umbrella box; Figure 30 This is a diagram illustrating the state of the umbrella being tightened.

[0037] Reference numerals: 01, Level 1 rod; 01-A, Level 1 rod pulley and nesting limit; 02, Level 2 rod; 02-A, Level 3 rod opening limit; 02-B, Top block lifting device; 02-C, Level 2 rod lower pulley mounting hole; 02-D, Level 2 rod opening limit; 02-E, Level 2 rod pulley installation and nesting limit; 03, Level 3 rod; 03-A, Level 3 rod pulley installation and nesting limit; 03-B, Level 3 rod lower pulley mounting hole; 03-C, Level 3 rod nesting limit; 04, Slider; 04-A, Drive line connection hole; 05, Rod cap; 05-A, Wire groove; 06. Base; 06-A. Base post; 06-B. Drive line limiting post hole; 06-C. Post mounting hole; 06-D. Post shaft hole; 06-E. Drive gear mounting hole; 06-F. First drive line through hole; 06-G. Second drive line through hole; 06-H. First stage rod mounting groove; 06-I. Battery mounting surface; 07. Tightening line; 08. Top block; 08-A. Top block cover plate; 08-B. Compression spring; 08-C. Top block side plate; 08-D, Top block center post; 08-E, Wire guide groove; 08-F, Fixing hole; 09, Primary umbrella rib; 10, Supporting umbrella rib; 11, Handle housing; 11-A, Primary rod through hole; 11-B, Drive line 12 through hole; 11-C, Switch button mounting and limit hole; 12, Lower drive line; 13, Upper drive line; 14, Sliding flat ring; 15, Wire post; 16-A, First drive gear; 16 -B, Second drive gear; 16-C, Third drive gear; 17-A, Side cover of the fixing seat; 17-B, Bottom cover of the fixing seat; 18, Switch seat; 19, Switch card; 20, Switch button; 21, Drive motor; 22, Secondary umbrella rib; 23, Umbrella box; 23-A, Outer wall of the umbrella box; 23-B, Inner wall of the umbrella box; 23-C, Connecting key; 23-D, Base plate; 23-E, Extension part; 24, Tertiary umbrella rib. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0039] Example 1 This embodiment provides a lightweight, energy-saving umbrella that is electrically powered, fully automatic in opening and closing. Figures 1 to 30 As shown, it includes: The umbrella rib mechanism includes a primary umbrella rib 09, a supporting umbrella rib 10, a secondary umbrella rib 22, and a sliding flat ring 14. The connection between the supporting umbrella rib 10 and the primary umbrella rib 09, and the lower part of the primary umbrella rib 09 are respectively provided with rotatable guide rings. The lower half of the secondary umbrella rib 22 is provided with a sliding flat ring 14, and a guide ring is provided outside the sliding flat ring 14. The umbrella pole mechanism includes a first-stage pole 01, a second-stage pole 02, and a third-stage pole 03 that can be nested and slidably connected to each other, as well as a slider 04 slidably mounted on the third-stage pole 03 and a pole cap 05 mounted on the upper end of the third-stage pole 03. The first-stage pole 01 is provided with a first-stage pole pulley and a nesting limiter 01-A. The second-stage pole 02 is provided with a second-stage pole lower pulley mounting hole 02-C, a second-stage pole pulley mounting and nesting limiter 02-E, and a top block lifting device 02-B for linkage with the tightening mechanism. The third-stage pole 03 is provided with a third-stage pole pulley mounting and nesting limiter 03-A and a third-stage pole lower pulley mounting hole 03-B. The drive mechanism includes a base 06, a drive motor 21, a post 15, a drive gear set, a drive cable assembly, and a switch assembly. The drive gear set includes a first drive gear 16-A, a second drive gear 16-B, and a third drive gear 16-C. One end of the drive cable assembly is fixed to the post 15, and the other end passes through pulleys on the first-stage rod 01, the second-stage rod 02, and the third-stage rod 03 in sequence, and then connects to the drive cable connection hole 04-A on the slider 04. The switch assembly is used to lock the first drive gear 16-A in a directional manner and control the forward and reverse rotation of the drive motor 21. The tightening mechanism includes a tightening line 07, a top block 08, and a compression spring 08-B. The top block 08 is mounted on the pole cap 05. One end of the tightening line 07 is fixed on the top block 08, and the other end passes through the wire groove 05-A on the pole cap 05, the wire ring on the supporting umbrella rib 10 and the first-level umbrella rib 09 in sequence, and then connects to the wire ring on the sliding flat ring 14 on the second-level umbrella rib 22. During the umbrella closing process, when the secondary pole 02 moves upward, it pushes the top block 08 through the top block lifting device 02-B, which causes the tensioning line 07 to tighten and pull the secondary umbrella ribs 22 towards the pole cap 05.

[0040] In a specific implementation, the first-level rod pulley on the first-level rod 01 and the nested limiter 01-A protrude downwards and contact the second-level rod opening limiter 02-D on the second-level rod 02 when the umbrella is opened, thereby realizing the opening limit between the first-level rod 01 and the second-level rod 02.

[0041] In a specific implementation, the secondary rod 02 is provided with a tertiary rod opening limit 02-A, which is used to cooperate with the tertiary rod nesting limit 03-C on the tertiary rod 03 to realize the opening limit between the secondary rod 02 and the tertiary rod 03.

[0042] In a specific embodiment, the drive line assembly includes a lower drive line 12 and an upper drive line 13, and the drive line connection hole 04-A provided on the slider 04 is used to connect the upper drive line 13 and the lower drive line 12.

[0043] In a specific implementation, the drive line assembly, through a specific winding path of the upper drive line 13 in conjunction with the winding path of the lower drive line 12, enables the opening movement of the three-level nested umbrella poles and the slider 04 when the drive line 13 retracts by a certain length, resulting in the opening movement of the three-level nested poles. This, in turn, releases the drive line 12 by the same length, and the same applies when the umbrella is closed. The synchronous movement of the drive lines, retracting and extending at equal lengths, is driven by the thread post 15. The lower drive line 12 and the upper drive line 13 originate from the thread post 15 and connect to the slider 04 via different paths. The drive lines do not cross or overlap during their winding process, ensuring that the drive lines do not knot or tangle during the extension and retraction of the umbrella pole. Specifically, the lower drive line 12 and the upper drive line 13 start from the post 15 inside the base 06, pass through the pulleys inside the three-level nested umbrella poles (first-level pole 01, second-level pole 02, and third-level pole 03) along different paths, and finally converge to connect to the drive line connection hole 04-A on the slider 04. The upper drive line 13 needs to follow a strict threading procedure and the threading direction of the threading through the pulley between the third-level poles.

[0044] In a specific embodiment, the top block 08 includes a top block cover plate 08-A, a compression spring 08-B, a top block side plate 08-C, and a top block center post 08-D. The top block 08 is provided with a fixing hole 08-F for installing the tensioning line 07 and a wire groove 08-E for installing the wire rod. The outer dimensions of the top block side plate 08-C and the top block cover plate 08-A are the same as the outer dimensions of the secondary rod 02.

[0045] In a specific embodiment, the base 06 is provided with a base post 06-A for inserting the lower end of the first-stage rod 01, a drive line limiting post hole 06-B for installing the lead wire shaft, a lead wire mounting hole 06-C and a lead wire shaft hole 06-D for installing the lead wire post, a drive gear mounting hole 06-E for installing the drive gear set, a first drive wire through hole 06-F and a second drive wire through hole 06-G for the drive wire to pass through, and a first-stage rod mounting groove 06-H for accommodating the first-stage rod 01; the base 06 is also provided with a battery mounting surface 06-I.

[0046] In a specific embodiment, the switch assembly includes a switch base 18, a switch card 19, and a switch button 20; the switch assembly slides left and right by the switch button 20, which drives the switch cards 19 on both sides to move to opposite heights, thereby directionally locking the first drive gear 16-A, realizing mechanical locking of the umbrella at any opening or closing position, and allowing manual operation to open the umbrella in the power-off state.

[0047] In a specific embodiment, it also includes an umbrella box 23, which has openings at both the top and bottom and is equipped with a detachable cover. The umbrella box has an outer wall 23-A, an inner wall 23-B and a connecting key 23-C. The lower part of the umbrella box 23 has a bottom plate 23-D with a drainage hole and an extension 23-E for installing the bottom cover.

[0048] In a specific embodiment, it also includes a grip housing 11, which has a primary rod through hole 11-A, a drive line through hole 11-B, and a switch button mounting and limiting hole 11-C.

[0049] The drive mechanism also includes a base cover plate, which includes a side cover plate 17-A of the fixed seat and a bottom cover plate 17-B of the fixed seat.

[0050] The first-stage pole 01 has a rectangular cross-section with rounded corners on one side and recessed corners on the other. The rounded corners are used to reduce the discomfort of leaning against the body when holding an umbrella, and the recessed corners are used to reduce the overall size when the pulley is installed on the upper part of the second-stage pole 02.

[0051] Working principle: Two drive lines are used, which are wound around a pulley system within a three-level nested umbrella pole and connected to slider 04. The automatic opening and closing of the umbrella pole is achieved by the synchronous extension and retraction of the line post 15. I. The process of opening the umbrella Pressing the switch button 20 causes the drive motor 21 to rotate forward, which in turn drives the thread column 15 to rotate in the same direction via the drive gear set; the thread column simultaneously releases the lower drive line 12 and retracts the upper drive line 13. The drive line first pulls the slider 04 upward along the third-level rod 03, and the slider 04 pushes the second-level rod 02 to extend relative to the third-level rod; the second-level rod continues to move upward, and the second-level rod opening limit 02-D on it contacts the lower protrusion of the first-level rod pulley and the nested limit 01-A, causing the first-level rod 01 to extend relative to the second-level rod; the first, second and third-level rods unfold to the limit position in sequence; After the umbrella pole is fully extended, the slider 04 continues to move upward, causing the supporting umbrella ribs 10 to extend outward, and the umbrella rib mechanism opens and spreads the umbrella surface in conjunction. After the umbrella is fully open, press switch button 20 to lock switch card 19 into the first drive gear 16-A, de-energizing the motor and mechanically locking the umbrella to remain open. II. Umbrella Closing Process When the reverse toggle switch button 20 is released, the drive motor 21 reverses, and the lead column 15 rotates in the reverse direction. The drive line first pulls the slider 04 down along the third rod 03. The slider drives the supporting umbrella ribs 10 to retract inward, and the umbrella ribs fold and close, thus unloading the load on the umbrella surface. After the umbrella surface is closed, the slider continues to descend, sequentially driving the first-level rod 01 to retract into the second-level rod 02, and then driving the second-level rod 02 to retract into the third-level rod 03. The third-level rod itself remains fixed to the base 06. Once fully closed, the switch card 19 mechanically locks the mechanism again, cutting off power to the motor.

[0052] The principle behind the automatic tightening of the umbrella ribs during the closing process: In traditional three-fold umbrellas, after the slider reaches its downward limit, the secondary rib 22 still has a large amount of play due to the dead zone of the connecting rod, preventing it from automatically closing. This invention solves this problem by adding a tightening mechanism. Preset state of the tightening mechanism: The compression spring 08-B is sleeved on the center post 08-D of the top block, so that the top block 08 is slightly lower than the top of the secondary rod 02 in its natural state; When closing the umbrella: the secondary pole 02 moves upward with the umbrella pole as it retracts, relative to the stationary tertiary pole / pole cap. When the top block lifting device 02-B contacts the bottom surface of the top block 08, it overcomes the resistance of the compression spring 08-B and lifts the top block 08 upward. The top block 08 moves upward, causing the tightening line 07 wrapped around it to be tightened. One end of the tightening line is fixed to the top block 08-F, and then passes through the wire groove 05-A, the supporting rib and the wire ring on the primary rib, and finally is fixed to the sliding flat ring 14 of the secondary rib. After the tensioning line is tightened, the secondary umbrella rib 22 is actively pulled towards the pole cap 05 to overcome the looseness caused by the dead zone of the connecting rod and make the umbrella ribs fit tightly against the umbrella pole; the tertiary umbrella rib 24 cannot be tightened and the lower end of the tertiary umbrella pole 24 still has a large degree of freedom. When the umbrella opens: the secondary rod 02 moves down and disengages from the top block 08, the compression spring 08-B resets and causes the top block to fall, the tension line loosens, and the umbrella ribs can be opened normally.

[0053] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0054] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A lightweight, energy-saving umbrella with fully automatic electric opening and closing mechanism, characterized in that: include: The umbrella rib mechanism includes a primary umbrella rib (09), a supporting umbrella rib (10), a secondary umbrella rib (22), and a sliding flat ring (14). The connection between the supporting umbrella rib (10) and the primary umbrella rib (09) and the lower part of the primary umbrella rib (09) are respectively provided with rotatable guide rings. The lower half of the secondary umbrella rib (22) is provided with a sliding flat ring (14), and a guide ring is provided outside the sliding flat ring (14). The umbrella pole mechanism includes a first-stage pole (01), a second-stage pole (02), and a third-stage pole (03) that can be nested and slidably connected to each other, as well as a slider (04) slidably mounted on the third-stage pole (03) and a pole cap (05) mounted on the upper end of the third-stage pole (03); the first-stage pole (01) is provided with a first-stage pole pulley and a nesting limiter (01-A); the second-stage pole (02) is provided with a second-stage pole lower pulley mounting hole (02-C), a second-stage pole pulley mounting and nesting limiter (02-E), and a top block lifting device (02-B) for linkage with the tightening mechanism; the third-stage pole (03) is provided with a third-stage pole pulley mounting and nesting limiter (03-A) and a third-stage pole lower pulley mounting hole (03-B). The drive mechanism includes a base (06), a drive motor (21), a post (15), a drive gear set, a drive line assembly, and a switch assembly; one end of the drive line assembly is fixed on the post (15), and the other end passes through the pulleys on the first-stage rod (01), the second-stage rod (02), and the third-stage rod (03) in sequence and is connected to the drive line connection hole (04-A) on the slider (04). The tightening mechanism includes a tightening line (07), a top block (08), and a compression spring (08-B). The top block (08) is mounted on the pole cap (05). One end of the tightening line (07) is fixed on the top block (08), and the other end passes through the wire groove (05-A) on the pole cap (05), the wire ring on the supporting rib (10), and the first-level rib (09) in sequence, and then connects to the wire ring on the sliding flat ring (14) on the second-level rib (22). During the umbrella closing process, when the secondary pole (02) moves upward, it pushes the top block (08) through the top block lifting device (02-B), which causes the tensioning line (07) to tighten and pull the secondary umbrella ribs (22) towards the pole cap (05).

2. The lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The first-level rod pulley on the first-level rod (01) protrudes downward at one end of the nested limiter (01-A) and contacts the second-level rod opening limiter (02-D) on the second-level rod (02) when the umbrella is opened, thereby realizing the opening limit between the first-level rod (01) and the second-level rod (02).

3. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The secondary rod (02) is provided with a tertiary rod opening limit (02-A), which is used to cooperate with the tertiary rod nesting limit (03-C) on the tertiary rod (03) to realize the opening limit between the secondary rod (02) and the tertiary rod (03).

4. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The drive line assembly includes a lower drive line (12) and an upper drive line (13). The drive line connection hole (04-A) provided on the slider (04) is used to connect the upper drive line (13) and the lower drive line (12).

5. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 4, characterized in that, The drive line assembly achieves synchronous movement of equal length through the extension and retraction of the line post (15). The lower drive line (12) and the upper drive line (13) start from the line post (15) and are connected to the slider (04) through different paths to ensure that the drive line does not get tangled or twisted during the extension and retraction of the umbrella pole.

6. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The top block (08) includes a top block cover plate (08-A), a compression spring (08-B), a top block side plate (08-C), and a top block center column (08-D). The top block (08) is provided with a fixing hole (08-F) for installing the tightening line (07) and a wire groove (08-E) for installing the wire. The outer dimensions of the top block side plate (08-C) and the top block cover plate (08-A) are the same as the outer dimensions of the secondary rod (02).

7. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The base (06) is provided with a base post (06-A) for inserting the lower end of the first-stage rod (01), a drive line limiting post hole (06-B) for installing the wire shaft, a wire post mounting hole (06-C) and a wire post shaft hole (06-D) for installing the wire post, a drive gear mounting hole (06-E) for installing the drive gear set, a first drive line through hole (06-F) and a second drive line through hole (06-G) for the drive line to pass through, and a first-stage rod mounting groove (06-H) for accommodating the first-stage rod (01); the base (06) is also provided with a battery mounting surface (06-I).

8. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, The switch assembly includes a switch base (18), a switch card (19), and a switch button (20). The switch assembly slides left and right by the switch button (20), which drives the switch cards (19) on both sides to move to opposite heights, thereby locking the first drive gear (16-A) of the drive gear set in a directional manner, so as to achieve mechanical locking of the umbrella at any opening or closing position, and the umbrella can be manually opened in the power-off state.

9. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, It also includes an umbrella box (23), which has openings at the top and bottom and is equipped with a removable cover. The umbrella box has an outer wall (23-A), an inner wall (23-B), and a connecting key (23-C). The lower part of the umbrella box (23) has a bottom plate (23-D) with a drainage hole and an extension (23-E) for installing the bottom cover.

10. A lightweight, energy-saving umbrella with fully automatic opening and closing mechanism according to claim 1, characterized in that, It also includes a grip housing (11), which has a primary rod through hole (11-A), a drive line through hole (11-B), and a switch button mounting and limiting hole (11-C). The drive mechanism also includes a base cover plate, which includes a side cover plate (17-A) of the fixed seat and a bottom cover plate (17-B) of the fixed seat.

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