Easy fold auto-open umbrella
Patent Information
- Application Number
- CN202522603865.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-08
AI Technical Summary
现有的这种自动开收伞的中棒通常采用三节管件套接而成，而且开伞弹簧和拉绳都各自只设有一根，在按压按钮收折伞骨后，需要人手将中棒由伸展的3节长度压缩至1节的长度，所需压缩的行程较长，而且压缩所需的力量较大，往往需要6-8公斤的力才能完成，所以老人、小孩这些年老体弱者使用起来就会比较困难
[0009]同现有技术相比较，本实用新型的容易折叠的自动开收伞的中棒具有四节，开伞弹簧设有三条，其中一条弹簧设在最内层的两节管件内，两条弹簧设在第二节管件上，并设置两条拉绳分别实现对下巢和最外层管件的拉升，由此每段管体内的弹簧折叠时所需压缩的长度比例大大少于现有的一段式开伞弹簧，因此收伞时压缩中棒所需的的力量也大大减少，但因二节管件内设置两条弹簧，因此开伞弹力更强，同时收伞时最外层管件会相应自动向下折叠，由此减小了压缩弹簧的行程，上述结构配合使得伞中棒更容易折叠，即使是年老体弱者在使用时也能更加轻松自如。
Smart Images
Figure CN224819829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an umbrella for everyday use, and in particular to an automatic opening and closing umbrella with an opening spring in the inner cavity of the central rod. Background Technology
[0002] Currently, some automatic opening and closing umbrellas on the market can automatically open or close the umbrella ribs by pressing a button on the umbrella handle, which is very convenient to use. For example, Chinese utility model patent with announcement number CN2827075 discloses an automatic opening and closing device for a multi-fold umbrella, which is equipped with an opening and closing control component for controlling the opening and closing of the umbrella. This opening and closing control component provides the power to extend the central rod by setting an opening spring in the inner cavity of the central rod, and provides the power to close the umbrella ribs by setting tension springs and other structures on the umbrella ribs. The central rod is also equipped with a pull rope and a bullet head that can be fixed in the umbrella handle or released. One end of the pull rope is connected to the bullet head, and the other end passes around the pulley set at the top of the central rod and is connected to the lower nut. The existing automatic umbrella opening and closing mechanism typically uses a three-section tubing as the central rod, and there is only one opening spring and one pull cord. After pressing the button to close the umbrella ribs, the central rod needs to be manually compressed from the extended three sections to the length of one section. The compression stroke is relatively long, and the force required for compression is also relatively large, often requiring 6-8 kilograms of force to complete. Therefore, it is difficult for the elderly, children, and other frail people to use. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an easy-to-fold automatic opening and closing umbrella in which the central bar automatically folds a section when the umbrella is closed, thus the compression stroke of the central bar is short and the force required to compress the central bar is small.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to design and manufacture an easy-to-fold automatic opening and closing umbrella, including: a central rod, an upper canopy and an umbrella handle respectively installed at the top and bottom of the central rod, a lower canopy slidably sleeved outside the central rod, umbrella ribs connecting the upper and lower canopies, and an opening and closing control component for controlling the opening and closing of the umbrella; the opening and closing control component includes: an opening spring, a bullet head, and a pull cord installed inside the central rod. The umbrella ribs are three-fold umbrella ribs, and the central rod is formed by connecting the first tube, the second tube, the third tube, and the fourth tube from the outside to the inside. The umbrella-opening spring includes: a first spring disposed within the third and fourth tubes, a second spring with a larger diameter disposed within the second tube, and a third spring with a smaller diameter disposed within the second tube; a sleeve is provided between the second spring and the third spring and the sleeve is connected vertically. The pull rope includes a first pull rope and a second pull rope; one end of the first pull rope is connected to the top of the second pipe and the other end is connected to the lower nest after passing through a first pulley set on the top of the first pipe; one end of the second pull rope is connected to the bullet head and the other end is connected to the bottom of the first pipe after passing through a second pulley set on the top of the second pipe.
[0005] The umbrella ribs are equipped with tension springs to provide power for folding the umbrella ribs.
[0006] The sleeve has an outwardly extending top edge and an inwardly extending bottom edge; the third spring is at least partially installed inside the sleeve with its bottom abutting against the bottom edge and its top abutting against the top of the second pipe fitting; the second spring is at least partially sleeved outside the sleeve with its top abutting against the top edge and its bottom abutting against the top of the third pipe fitting.
[0007] The automatic opening and closing umbrella of this utility model also includes a safety device for preventing the central rod from rebounding when compressed. The safety device includes a safety pull rope and a winding wheel installed in the umbrella handle. One end of the safety pull rope is wound around the winding wheel, and the other end passes upward through the inner cavity of the central rod and is connected to the top of the second tube.
[0008] The first pipe fitting has a first pulley seat fixedly installed on its top, and the first pulley is mounted on the first pulley seat; the second pipe fitting has a second pulley seat fixedly installed on its top, and the second pulley is mounted on the second pulley seat, with one end of the first pull rope and the safety pull rope connected to the second pulley seat.
[0009] Compared with existing technologies, the easy-to-fold automatic opening and closing umbrella of this utility model has four sections in the middle rod and three opening springs. One spring is located in the innermost two sections of the tube, and two springs are located in the second section of the tube. Two pull ropes are provided to pull up the lower tube and the outermost tube respectively. As a result, the length of springs in each tube that need to be compressed when folding is much less than that of existing single-section opening springs. Therefore, the force required to compress the middle rod when closing the umbrella is also greatly reduced. However, because two springs are located in the two sections of the tube, the opening force is stronger. At the same time, the outermost tube will automatically fold downward when closing the umbrella, thereby reducing the stroke of the compression spring. The above structure makes the umbrella middle rod easier to fold, and even the elderly and frail can use it more easily and freely. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the automatic opening and closing umbrella of this utility model in the open state. Figure 2 This is a schematic diagram of the automatic opening and closing umbrella of this utility model when the button is pressed to fold the umbrella ribs. Figure 3This is a schematic diagram of the automatic opening and closing umbrella of this utility model when the central rod is compressed to the closed state. Figure 4 This is an exploded view of the automatic opening and closing umbrella of this utility model; Figure 5 This is a vertical cross-sectional view of the automatic opening and closing umbrella of this utility model in the open state. Figure 6 This is a vertical cross-sectional view of the automatic opening and closing umbrella of this utility model when the button is pressed to fold the umbrella ribs. Figure 7 This is a vertical cross-sectional view of the automatic opening and closing umbrella of this utility model when the central rod is compressed to the closed state. Figure 8 for Figure 5 Enlarged view of the first pipe fitting in the middle; Figure 9 for Figure 5 Enlarged view of the second pipe fitting in the middle; Figure 10 for Figure 5 Enlarged views of the third and fourth pipe fittings; Figure 11 for Figure 6 Enlarged view of the first and second pipe fittings in the middle section; Figure 12 for Figure 6 Enlarged views of the third and fourth pipe fittings; Figure 13 for Figure 7 Enlarged view of the middle rod after it is fully folded (umbrella ribs and lower nest are not shown). Figure 14 This is a schematic diagram showing the connection between the second spring 52 and the third spring 53 and the sleeve 54. Detailed Implementation
[0011] The preferred embodiment shown in the accompanying drawings will be described in further detail below.
[0012] like Figure 1 and Figure 4 As shown, the easily foldable automatic opening and closing umbrella of this utility model includes: a central rod 1, an upper spool 21 mounted on the top of the central rod 1, a lower spool 22 slidably sleeved on the outside of the central rod 1, an umbrella handle 3 mounted on the bottom of the central rod 1, umbrella ribs 4 connecting the upper spool 21 and the lower spool 22, and an opening and closing control assembly for controlling the opening and closing of the umbrella. The umbrella ribs 4 are three-fold ribs, and each rib is equipped with a tension spring 41 for providing power to fold the umbrella. The central rod 1 is a four-fold type, consisting of a first tube 11, a second tube 12, a third tube 13, and a fourth tube 14 connected sequentially from the outside to the inside. The folded length of the umbrella ribs 4 matches the fully folded length of the aforementioned four-section central rod.
[0013] The opening and closing control assembly mainly includes: an opening spring and insert 63 installed inside the central rod 1, a bullet head 61, a control tube 62 fixedly installed inside the umbrella handle 3, a pull cord connected to the lower nest 22 and the bullet head 61, and a button assembly. The button assembly includes a button 31 and a corresponding component inside the umbrella handle 3, used to control the locking and releasing of the central rod 1 and the bullet head 61. Figure 3 In the closed state shown, the bullet-shaped umbrella 61 is positioned within the control tube 62, and the folded center rod 1 is locked by the button assembly and cannot extend. When the button 31 is pressed for the first time, the center rod 1 is released, and under the action of the opening spring, the center rod 1 extends upward, causing the pull cord to pull the lower canopy 22 upward, thus opening the umbrella ribs 4. At this time, the umbrella is in the closed state as shown. Figure 1 The umbrella is in the opened state. When button 31 is pressed again in the opened state, as shown... Figure 2 and Figure 6 As shown, button 31 will push bullet 61 away from control tube 62 and release it, the lower nest 22 will lose the tension of the pull cord, and the umbrella ribs 4 will fold up under the action of tension spring 41 and push the lower nest 22 down. Figure 2 When the umbrella ribs are in the folded state and the central rod 1 is compressed, the multiple sections of the central rod 1 will fold downwards until the central rod 1 is locked by the button assembly. At the same time, the bullet head 61 will be pushed into the control tube 62 by the insertion tube 63 inside the central rod 1 and fixed therein. The above-described working principle of the opening and closing control assembly is prior art and will not be described in detail here.
[0014] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the special feature of this utility model is: The umbrella opening spring includes: a first spring 51 disposed within the third tube 13 and the fourth tube 14; a second spring 52 with a larger diameter disposed within the second tube 12; and a third spring 53 with a smaller diameter disposed within the second tube 12. A sleeve 54 is provided between the second spring 52 and the third spring 53, and they are connected vertically through the sleeve 54. Since each of the above springs provides the upward extension force for different tube sections, the length of springs required to be compressed when folding each tube section is much less than that of existing single-section umbrella opening springs. Therefore, the force required to compress the central rod when closing the umbrella is lighter, and even people with less strength can use it easily. In addition, the second spring 52 and the third spring 53 have overlapping portions, which can greatly increase the number of spring coils, thereby increasing the elasticity when opening the umbrella, resulting in a stronger elasticity when opening the umbrella.
[0015] The pull cords include a first pull cord 71 and a second pull cord 72. One end of the first pull cord 71 is connected to the top of the second tube 12, and the other end passes through a first pulley 112 located at the top of the first tube 11 and connects to the lower nest 22. One end of the second pull cord 72 is connected to the bullet head 61, and the other end passes through a second pulley 122 located at the top of the second tube 12 and connects to the bottom of the first tube 11. The arrangement of these two pull cords ensures that when the button is pressed to close the umbrella, the outermost first tube 11 will automatically fold downwards outside the second tube 12, which can greatly shorten the stroke of the subsequent compression rod.
[0016] In this embodiment, as Figure 4 and Figure 8 As shown, a first pulley seat 111 is fixedly installed on the top of the first pipe fitting 11, and a first pulley 112 is mounted on the first pulley seat 111. A collar 15 is fixedly sleeved on the bottom of the first pipe fitting 11. One end of the second pull rope 72 passes around the second pulley 122 and downwards through the gap between the first pipe fitting 11 and the second pipe fitting 12 before connecting to the collar 15. A second pulley seat 121 is fixedly installed on the top of the second pipe fitting 12, and the second pulley 122 is mounted on the second pulley seat 121. One end of the first pull rope 71 is connected to the second pulley seat 121. Figure 9 and Figure 10 As shown, a top plug 16 is fixedly provided on the top of the third tube 13 to separate the first spring 51 and the second spring 52. The top plug 16 has a vertical through hole in the center through which the insertion tube 63 can pass.
[0017] In this embodiment, as Figure 9 and Figure 14 As shown, the main body of the sleeve 54 is a hollow cylinder, with an outwardly extending top edge 541 at the top and an inwardly extending bottom edge 542 at the bottom. The third spring 53 is at least partially installed inside the sleeve 54, with its bottom abutting against the bottom edge 542 and its top abutting against the bottom of the second pulley seat 121 installed at the top of the second pipe fitting 12. The second spring 52 is at least partially sleeved outside the sleeve 54, with its top abutting against the top edge 541 and its bottom abutting against the top plug 16 provided at the top of the third pipe fitting 13. The insertion tube 63 passes through the inner cavity of the sleeve 54, and the third spring 53 is sleeved outside the insertion tube 63, thereby the insertion tube 63 also has a guiding function for the third spring 53.
[0018] The automatic opening and closing umbrella of this invention further includes a safety device to prevent the central rod 1 from rebounding during compression. For example... Figure 4As shown, the safety device includes: a safety pull cord 81, a winding wheel 82 and a ratchet 83 coaxially mounted inside the umbrella handle 3, a spring 84 acting on the winding wheel 82, and a locking component 85. One end of the safety pull cord 81 is wound around the winding wheel 82, and the other end passes upward through the inner cavity of the central rod 1 and connects to the second pulley seat 121 at the top of the second tube 12. When the central rod 1 is compressed, as... Figure 12 As shown, the spring force of the mainspring 84 drives the winding wheel 82 to rotate clockwise, winding the safety rope 81. The locking element 85, pressing against the radial teeth of the ratchet 83, prevents the ratchet 83 and the coaxial winding wheel 82 from reversing, thus releasing the safety rope 81 and preventing the center rod 1 from rebounding. When closing the umbrella, as... Figure 13 As shown, when the bullet head 61 is pressed into the control tube 62, it will press down on the horizontal arm of the locking component 85, causing the straight arm of the locking component 85 to swing and disengage from the ratchet 83. At this time, the winding wheel 82 is in a reversible state to release the safety rope 81, which will not affect the upward extension of the center bar 1 when the parachute opens. Except for the different position of the safety rope 81 connecting to the center bar 1, the structural principle of the above safety device is also the same as existing technology, and will not be described in detail here.
[0019] In this embodiment, the second pull rope 72 passes through the inner cavity of the insertion tube 63, while the safety pull rope 81 passes through the outside of the insertion tube 63, which can prevent the safety pull rope 81 and the second pull rope 72 from getting tangled and interfering with each other.
[0020] In such Figure 3 When the button 31 is pressed for the first time in the umbrella-closed state as shown, the central rod 1 is released, as... Figure 5 , Figure 8 , Figure 9 and Figure 10 As shown, the third tube 13 extends upward relative to the fourth tube 14 under the action of the first spring 51, and the second tube 12 extends upward relative to the third tube 13 under the action of the second spring 52 and the third spring 53. The second pull rope 72 pulls the first tube 11 upward. At this point, all the tubes of the central rod 1 are fully extended. At the same time, as the first tube 11 extends upward, the first pull rope 71 pulls the lower nest 22 upward, causing the umbrella ribs 4 to open. The safety pull rope 81 is also released as the central rod 1 unfolds, and the umbrella is in the position of... Figure 1 and Figure 5 The umbrella is shown in the open position.
[0021] In such Figure 1 When button 31 is pressed again in the umbrella-open state as shown, as Figure 2 , Figure 6 , Figure 11 and Figure 12As shown, the bullet head 61 is released from the control tube 62. The first tube 11, losing the tension of the second pull cord 72, folds downward and fits onto the outside of the second tube 12. At the same time, the lower canopy 22 loses the tension of the first pull cord 71. Under the action of the tension spring 41, the umbrella ribs fold and push the lower canopy 22 downward. At this time, the locking member 85 is no longer pressed by the bullet head 61 and, under the action of the spring, approaches the ratchet 83, so that the ratchet 83 and the winding wheel 82 can only rotate forward and not backward. The umbrella is in a state of... Figure 2 and Figure 6 As shown in the folded umbrella rib state, it can be seen that the first tube 11 of the central rod 1 has automatically folded downwards, greatly reducing the remaining compression stroke required for the central rod 1.
[0022] exist Figure 2 When the umbrella ribs are folded down, the central rod 1 is compressed downwards. The winding wheel 82, driven by the spring 84, rotates clockwise to wind the safety rope 81. The locking device 85 prevents the winding wheel 82 from reversing. When the central rod is fully compressed, as shown... Figure 13 As shown, the third tube 13 and the fourth tube 14 are folded up and fitted into the lower part of the inner cavity of the second tube 12. The second spring 52, the third spring 53, and the sleeve 54 sandwiched between them are fitted into the upper part of the inner cavity of the second tube 12. The first tube 11 is locked so that the central rod 1 cannot extend upward. The bullet head 61 is pushed into the control tube 62 by the insertion tube 63 and fixed. The locking member 85 is disengaged from the ratchet 83 under the action of the bullet head 61. At this time, the umbrella is in the position as shown. Figure 3 and Figure 7 The umbrella is shown in its closed state.
[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An easily foldable, automatically opening and closing umbrella, comprising: A central rod (1), an upper canopy (21) and an umbrella handle (3) respectively installed at the top and bottom of the central rod (1), a lower canopy (22) slidably sleeved outside the central rod (1), umbrella ribs (4) connecting the upper canopy (21) and the lower canopy (22), and an opening and closing control assembly for controlling the opening and closing of the umbrella; the opening and closing control assembly includes: an opening spring, a bullet head (61), and a pull cord installed inside the central rod (1); characterized in that: The umbrella rib (4) is a three-fold umbrella rib, and the central rod (1) is formed by connecting the first tube (11), the second tube (12), the third tube (13) and the fourth tube (14) from the outside to the inside. The opening spring includes: a first spring (51) disposed in the third tube (13) and the fourth tube (14), a second spring (52) with a larger diameter and a third spring (53) with a smaller diameter disposed in the second tube (12); a sleeve (54) is provided between the second spring (52) and the third spring (53) and the sleeve (54) is connected vertically. The pull rope includes a first pull rope (71) and a second pull rope (72); one end of the first pull rope (71) is connected to the top of the second pipe fitting (12), and the other end is connected to the lower nest (22) after passing through the first pulley (112) set on the top of the first pipe fitting (11); one end of the second pull rope (72) is connected to the bullet head (61), and the other end is connected to the bottom of the first pipe fitting (11) after passing through the second pulley (122) set on the top of the second pipe fitting (12).
2. The easily foldable automatic opening and closing umbrella according to claim 1, characterized in that: The umbrella rib (4) is provided with a tension spring (41) for providing power to fold the umbrella rib.
3. The easily foldable automatic opening and closing umbrella according to claim 1, characterized in that: The sleeve (54) has an outwardly extending top edge (541) at the top and an inwardly extending bottom edge (542) at the bottom; the third spring (53) is at least installed in the sleeve (54) at its lower part and its bottom abuts against the bottom edge (542), and its top abuts against the top of the second pipe fitting (12); the second spring (52) is at least fitted outside the sleeve (54) at its upper part and its top abuts against the top edge (541), and its bottom abuts against the top of the third pipe fitting (13).
4. The easily foldable automatic opening and closing umbrella according to claim 1, 2 or 3, characterized in that: It also includes a safety device to prevent the center rod (1) from rebounding when compressed. The safety device includes a safety pull rope (81) and a winding wheel (82) installed in the umbrella handle (3). One end of the safety pull rope (81) is wound around the winding wheel (82), and the other end passes upward through the inner cavity of the center rod (1) and is connected to the top of the second tube (12).
5. The easily foldable automatic opening and closing umbrella according to claim 4, characterized in that: The first pipe fitting (11) is fixedly provided with a first pulley seat (111) at the top, and the first pulley (112) is installed on the first pulley seat (111); the second pipe fitting (12) is fixedly provided with a second pulley seat (121) at the top, and the second pulley (122) is installed on the second pulley seat (121), and one end of the first pull rope (71) and the safety pull rope (81) is connected to the second pulley seat (121).