Automatic opening and closing electric umbrella

Abstract

An automatic opening and closing electric umbrella has a middle stick (1), an upper nest (21), a lower nest (22), an umbrella handle (3), an umbrella rib (4) provided with a closing umbrella spring (41), an opening umbrella assembly and a closing umbrella assembly, wherein the opening umbrella assembly comprises an opening umbrella spring (51) installed in the inner cavity of the middle stick (1), an opening umbrella button (52) installed on the umbrella handle (3) and an opening umbrella pull rope assembly connected with the lower nest (22); the closing umbrella assembly comprises a motor (61) installed in the inner cavity of the umbrella handle (3), a winding reel (62), a clutch (63), a circuit board (64) connected with a power supply and the motor (61), a closing umbrella pull rope (66) and a closing umbrella button (67); one end of the closing umbrella pull rope (66) is wound on the winding reel (62), the other end is connected with the top of the middle stick (1), and the motor (61) and the winding reel (62) are connected or separated with each other through the clutch (63). The automatic opening and closing electric umbrella has the advantages of less accessories, simple structure, convenient use, fast opening umbrella speed and small power consumption.

Description

Technical Field

[0001] This utility model relates to an umbrella for everyday use, and more particularly to a structural improvement of an automatic opening and closing electric umbrella with automatic opening and closing functions, applicable to various multi-fold umbrellas. Background Technology

[0002] Existing automatic umbrellas can automatically open, close, and even retract the ribs by pressing a button on the handle, making them very convenient to use. Currently, automatic umbrellas typically achieve automatic opening and closing using one of the following two methods: One type is a mechanical structure. An opening spring is installed inside the umbrella's central bar to provide the power to extend it. Components such as a bullet-shaped nozzle, control tube, pull cord, and push rod are located inside the central bar, working in conjunction with the opening spring to achieve the opening and closing action. Closing springs are installed on the umbrella ribs to provide the power to fold the ribs. However, with this type of automatic umbrella, pressing the button to close the umbrella only folds the ribs; the central bar still needs to be manually compressed to the final closed state. Some automatic umbrellas require considerable pressing force, making them inconvenient for the elderly or children with less strength. Furthermore, to prevent injuries caused by the opening spring rebounding during the compression of the central bar when closing the umbrella, a safety device is needed inside the handle to retract the safety cord. This further increases the length of the handle and the number of required components, making the structure more complex, assembly more difficult, and the cost higher.

[0003] Another type is the electric structure, which houses the battery and motor inside the umbrella handle, and the pull cord and complex drive shaft and other accessories inside the umbrella shaft. The motor, drive shaft, and pull cord enable fully automatic opening and closing of the umbrella ribs and shaft. However, this type of electric automatic umbrella opens slowly, requires the assembly of complex drive shafts and other accessories inside the shaft, making assembly more complicated, and consumes more power. A slight oversight can lead to insufficient battery power and the inability to open or close the umbrella. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic opening and closing electric umbrella that opens through a mechanical structure and closes through an electric structure, which makes the automatic opening and closing structure simple, the opening speed fast, and the power consumption low.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide an automatic opening and closing electric umbrella, including: a middle rod formed by slidingly connecting at least two sections of tubing inside and outside, an upper nest installed on the top of the middle rod, a lower nest slidably connected to the middle rod, an umbrella handle installed at the bottom of the middle rod, an umbrella rib with a closing spring, an opening assembly, and a closing assembly. The umbrella opening assembly includes: an umbrella opening spring installed in the inner cavity of the center rod, an umbrella opening button installed on the umbrella handle for releasing or locking the center rod, and an umbrella opening pull cord assembly connected to the lower nest; The umbrella closing assembly includes: a motor, a winding reel, a clutch, a circuit board connected to the power supply and the motor, a closing cord, and a closing button on the umbrella handle corresponding to the switch position on the circuit board; one end of the closing cord is wound around the winding reel, and the other end is connected to the top of the center rod; the motor and the winding reel are connected or disconnected to each other by the clutch. When the umbrella is closed, pressing the opening button releases the folded center rod, which extends upward under the action of the opening spring. The winding wheel rotates to release the closing pull cord, and the lower rib is pulled upward by the opening pull cord assembly to open the umbrella ribs. When the umbrella is open, pressing the umbrella closing button activates the switch on the circuit board. The circuit board starts the motor, which drives the winding reel to rotate, thereby pulling the umbrella closing cord downwards. The center rod is pulled downwards by the umbrella closing cord and folds down. The umbrella ribs are folded down by the closing spring and the lower umbrella is pushed down. When the center rod is folded into place, it is locked by the umbrella opening button and the clutch controls the motor and winding reel to separate.

[0006] The umbrella opening pull rope assembly includes: an umbrella opening pull rope, a first pulley installed on the top of the central rod, and a second pulley installed on the lower nest; one end of the umbrella opening pull rope is fixed to the bottom of the central rod, and the other end is fixed to the top of the central rod after passing through the first pulley and the second pulley in sequence.

[0007] The outermost tube of the central rod has a snap-fit ​​position on its bottom side wall. The umbrella opening button is ring-shaped and fits around the central rod. The front of the ring-shaped umbrella opening button protrudes outside the umbrella handle, and the inner rear side has a hook with a protruding upper part and a guide surface. An elastic element pushes the umbrella opening button forward. When the central rod is folded into place, the elastic element pushes the umbrella opening button forward so that its hook is locked in the snap-fit ​​position, thus locking the central rod. When the umbrella opening button is pressed, the hook at the rear of the umbrella opening button disengages from the snap-fit ​​position, thus releasing the central rod.

[0008] The power source is a battery, and the bottom of the umbrella handle has a cavity for accommodating the battery. The motor, winding reel, clutch, and circuit board are mounted above the power source, and the umbrella opening button is mounted above the umbrella closing button.

[0009] The clutch is an electromagnetic coil clutch. The circuit board connects to and controls the clutch to connect the motor and the reel when the power is on, or to separate the motor and the reel when the power is off.

[0010] At this time, the circuit board may be equipped with a timing control circuit to control the clutch and motor to cut off power at regular intervals after they are started.

[0011] Alternatively, the circuit board may be equipped with a voltage control circuit for disconnecting the power supply to the clutch and motor when the motor is stalled due to the middle rod being folded into place and the circuit board detects an increase in output current.

[0012] Alternatively, the circuit board may be equipped with a positioning switch that will be activated when the middle rod is folded into place, thereby de-energizing the clutch and motor.

[0013] Compared with existing technologies, the automatic opening and closing electric umbrella of this utility model adopts a mechanical automatic opening structure such as an opening spring and an opening cord assembly, while the closing assembly adopts an electric automatic closing structure such as a motor, winding wheel, clutch, and closing cord assembly. It combines the advantages of both, making the opening speed as fast as that of a mechanical automatic umbrella, but without the need to compress the center rod when closing the umbrella, making it more convenient to use. It also consumes less power than a fully electric umbrella, and there is no need to set up safety devices. It requires fewer parts, has a simpler structure, is easier to assemble, and can reduce production costs. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of the automatic opening and closing electric umbrella of this utility model in the open state; Figure 2 This is a cross-sectional schematic diagram of the automatic opening and closing electric umbrella of this utility model in the closed state; Figure 3 for Figure 1 Enlarged view of the central umbrella handle; Figure 4 for Figure 2 A magnified view of the central umbrella handle. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0016] like Figure 1 and Figure 2 As shown, the automatic opening and closing electric umbrella of this utility model includes: a central rod 1, an upper slat 21 installed on the top of the central rod 1, a lower slat 22 slidably sleeved on the central rod 1, an umbrella handle 3 installed at the bottom of the central rod 1, umbrella ribs 4 connecting the upper slat 21 and the lower slat 22 for supporting the umbrella fabric, an opening assembly, and a closing assembly. The central rod 1 is a foldable structure formed by at least two sections of tubing slidably sleeved together. In this embodiment, the central rod 1 includes three sections of tubing: an outer tube 11, a middle tube 12, and an inner tube 13, which are sequentially sleeved from the outside to the inside. The top of the outer tube 11 is connected to the upper slat 21, and the bottom of the inner tube 13 is connected to the umbrella handle 3. Moving the lower slat 22 upwards causes the umbrella ribs 4 to extend outwards and open; conversely, moving the lower slat 22 downwards causes the umbrella ribs 4 to fold. A closing spring 41 is provided on the umbrella ribs 4 to provide the power for folding the umbrella ribs. This closing spring 41 also exerts a downward thrust on the lower slat 22.

[0017] The umbrella opening assembly includes: an umbrella opening spring 51, an umbrella opening button 52, and an umbrella opening pull cord assembly.

[0018] The umbrella-opening spring 51 is a compression spring installed inside the cavity of the middle rod 1, used to provide the power required for the middle rod 1 to extend.

[0019] like Figure 3 and Figure 4 As shown, the umbrella opening button 52 is installed on the umbrella handle 3 and is used to release or lock the central rod 1. In this embodiment, the umbrella opening button 52 is a ring-shaped device that fits around the central rod 1 and is slidably mounted on the umbrella handle 3. The front of the ring-shaped umbrella opening button 52 protrudes outside the umbrella handle 3, and the inner rear side is provided with a wedge-shaped hook 521 with an outward protrusion and an inclined guide surface on the upper part. The rear of the umbrella opening button 52 is provided with an elastic element 56, such as a spring, which pushes the umbrella opening button 52 forward. The bottom of the outermost tube of the central rod 1, i.e., the outer tube 11, is provided with an outward protruding locking position 111. When the central rod 1 is folded into place, that is, in the closed umbrella state, its outer tube 11 will press down on the guide surface of the hook 521, thereby pushing the umbrella opening button 52 inward and continuing to move downward until the hook 521 of the umbrella opening button 52 moves forward under the pushing force of the elastic element 56 and locks at the locking position 111. At this time, the central rod 1 is locked and cannot extend upward. When the umbrella opening button 52 is pressed, the hook 521 at the rear of the umbrella opening button 52 will disengage from the locking position 111, thereby releasing the central rod 1.

[0020] In this embodiment, the umbrella opening pull cord assembly includes: an umbrella opening pull cord 53, a first pulley 54, and a second pulley 55. A pulley seat 7 is fixedly installed on the top of the middle rod 1, i.e., the top of the outer tube 11. The first pulley 54 is installed on the pulley seat 7, and the second pulley 55 is installed on the lower nest 22. One end of the umbrella opening pull cord 53 is fixed to the bottom of the inner tube 13, and the other end passes through the inner cavity of the middle rod 1 and passes around the first pulley 54 and the second pulley 55 in sequence before being fixed at the pulley seat 7 at the top of the middle rod 1. When the lower nest 22 moves down along the middle rod 1, the umbrella opening pull cord 53 is gradually pulled out of the middle rod 1, and the length pulled out is twice the distance the lower nest 22 moves down. When the outer tube 11 of the middle rod 1 moves up and extends, the umbrella opening pull cord 53 pulls the lower nest 22 up through the first pulley 54, thereby opening the umbrella ribs 4. Therefore, the pulley setup and the routing of the umbrella-opening rope 53 can be adjusted according to the number of pipe sections and folding length of the central rod 1.

[0021] like Figure 1 and Figure 3As shown, the umbrella closing assembly includes: a motor 61, a winding reel 62, a clutch 63, a circuit board 64, a power supply 65, a closing cord 66, and a closing button 67. The power supply 65 can be a battery and is installed in a cavity at the bottom of the umbrella handle 3. The motor 61, winding reel 62, clutch 63, and circuit board 64 are located inside the umbrella handle 3 and above the power supply 65. The closing button 67 is installed on the umbrella handle 3 and below the opening button 52. The front of the closing button 67 protrudes outside the umbrella handle 3, and its rear corresponds to the switch position on the circuit board 64. Pressing the closing button 67 triggers the switch on the circuit board 64. One end of the closing cord 66 is wound around the winding reel 62, and the other end passes through the inner cavity of the center rod 1 and connects to the pulley seat 7 at the top of the center rod 1. The motor 61 and the winding reel 62 are connected by the clutch 63 when the closing button 67 is pressed or disengaged when the center rod 1 is folded into place.

[0022] In this embodiment, the clutch 63 is an electromagnetic coil clutch. The power supply 65 is connected to the circuit board 64, which in turn connects to the control motor 61 and the clutch 63. The motor 61 and the winding reel 62 can be connected or disconnected by energizing or de-energizing the clutch 63. When the umbrella closing button 67 is pressed, the switch on the circuit board 64 is triggered and energizes the motor 61 and the clutch 63. When the clutch 63 is energized, it controls the connection between the motor 61 and the winding reel 62 through the electromagnetic coil. As a result, the motor 61 drives the winding reel 62 to rotate, thereby winding back the umbrella closing pull rope 66, and the middle rod 1 is pulled down and folded. When the middle rod 1 is folded into place, the circuit board 64 de-energizes the motor 61 and the clutch 63, causing the motor 61 and the winding reel 62 to separate and the motor 61 to stop rotating.

[0023] To achieve the goal of de-energizing the motor 61 and clutch 63 from the circuit board 64 when the middle rod 1 is folded into place, one of the following implementation methods can be adopted: 1. A timing control circuit is provided on the circuit board 64 to control the power to be cut off at a time according to the time required to close the umbrella after the clutch 63 and the motor 61 are started when the umbrella closing button 67 is pressed. 2. A voltage control circuit is provided on the circuit board 64. When the middle rod 1 is folded into place, it can no longer be retracted, and the motor 61 will stall. At this time, the voltage control circuit will detect the increase in output current and disconnect the power supply to the clutch 63 and the motor 61. 3. A positioning switch is installed on the circuit board 64. When the middle rod 1 is folded into place, it will touch the switch to de-energize the clutch 63 and the motor 61.

[0024] Of course, the clutch 63 can also be mechanical. When the middle rod 1 is folded into place, it will trigger the mechanical clutch, thereby disconnecting the power transmission between the motor 61 and the reel 62.

[0025] The opening and closing process of this automatic electric umbrella is as follows: In such Figure 2 In the closed state shown, the motor 61 and clutch 63 are de-energized, and the motor 61 and winding reel 62 are disengaged. When the opening button 52 is pressed, the folded center rod 1 is released, and the center rod 1 extends upward under the action of the opening spring 51. The winding reel 62 rotates accordingly to release the closing pull cord 66. The opening pull cord 56 pulls the lower canopy 22 upward through the first pulley 54 and the second pulley 55, thereby opening the umbrella ribs 4. The umbrella is opened to the desired position. Figure 1 The umbrella is shown in the open position.

[0026] In such Figure 1 In the open state shown, pressing the closing button 67 will activate the switch on the circuit board 64, which powers the motor 61 and clutch 63, connecting the motor 61 and the winding reel 62. The motor 61 drives the winding reel 62 to rotate, thereby winding the closing pull cord 66. The center rod 1 is pulled downwards by the closing pull cord 66, greatly reducing the tension of the opening pull cord 53 on the lower nest 22. The umbrella ribs 4 fold under the action of the closing spring 41, pushing the lower nest 22 downwards until the center rod 1 is locked in place by the opening button 52. Figure 2 In the umbrella-closed state shown, the circuit board 64 de-energizes the motor 61 and clutch 63, and the clutch 63 controls the motor 61 to separate from the winding reel 62, causing the motor 61 to stop rotating.

[0027] 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 automatically opening and closing electric umbrella, comprising: The umbrella is characterized by the following: a central rod (1) formed by slidingly connecting at least two tubular sections; an upper spool (21) installed on the top of the central rod (1); a lower spool (22) slidably connected to the central rod (1); an umbrella handle (3) installed at the bottom of the central rod (1); an umbrella rib (4) equipped with a closing spring (41); an opening assembly; and a closing assembly. The umbrella opening assembly includes: an umbrella opening spring (51) installed in the inner cavity of the center rod (1), an umbrella opening button (52) installed on the umbrella handle (3) for releasing or locking the center rod (1), and an umbrella opening pull cord assembly connected to the lower nest (22); The umbrella closing assembly includes: a motor (61), a winding reel (62), a clutch (63) installed in the inner cavity of the umbrella handle (3), a circuit board (64) connecting the power supply and the motor (61), an umbrella closing cord (66), and an umbrella closing button (67) installed on the umbrella handle (3) corresponding to the switch position on the circuit board (64); one end of the umbrella closing cord (66) is wound around the winding reel (62), and the other end is connected to the top of the center rod (1); the motor (61) and the winding reel (62) are connected or separated by the clutch (63); When the umbrella is closed, press the opening button (52) to release the folded middle rod (1). The middle rod (1) extends upward under the action of the opening spring (51). The winding wheel (62) rotates to release the closing pull rope (66). The lower nest (22) is pulled upward by the opening pull rope assembly to open the umbrella ribs (4). When the umbrella is open, pressing the umbrella closing button (67) activates the switch on the circuit board (64). The circuit board (64) starts the motor (61), which drives the winding wheel (62) to rotate, thereby winding and closing the umbrella pull cord (66). The center rod (1) is pulled downward by the umbrella pull cord (66), and the umbrella ribs (4) are folded under the action of the umbrella closing spring (41) and push the lower nest (22) downward. When the center rod (1) is folded into place, it is locked by the umbrella opening button (52), and the clutch (63) controls the motor (61) and the winding wheel (62) to separate.

2. The automatic opening and closing electric umbrella according to claim 1, characterized in that, The parachute opening pull cord assembly includes: a parachute opening pull cord (53), a first pulley (54) installed on the top of the central rod (1), and a second pulley (55) installed on the lower nest (22); one end of the parachute opening pull cord (53) is fixed to the bottom of the central rod (1), and the other end is fixed to the top of the central rod (1) after passing through the first pulley (54) and the second pulley (55) in sequence.

3. The automatic opening and closing electric umbrella according to claim 1, characterized in that: The outermost tube of the central rod (1) has a snap-fit ​​position (111) on its bottom side wall. The umbrella opening button (52) is ring-shaped and fits around the central rod (1). The front of the ring-shaped umbrella opening button (52) protrudes outside the umbrella handle (3), and the inner side of the rear part has a hook (521) with a guide surface on the upper part that protrudes outward. An elastic element (56) pushes the umbrella opening button (52) forward. When the central rod (1) is folded into place, the elastic element (56) pushes the umbrella opening button (52) forward so that its hook (521) is locked at the snap-fit ​​position (111) and the central rod (1) is locked. When the umbrella opening button (52) is pressed, the hook (521) at the rear of the umbrella opening button (52) exits the snap-fit ​​position (111) and the central rod (1) is released.

4. The automatic opening and closing electric umbrella according to claim 1, characterized in that: The power source is a battery (65), and the bottom of the umbrella handle (3) is provided with a cavity for accommodating the battery. The motor (61), winding reel (62), clutch (63) and circuit board (64) are installed above the power source, and the umbrella opening button (52) is installed above the umbrella closing button (67).

5. The automatic opening and closing electric umbrella according to claim 1, characterized in that: The clutch (63) is an electromagnetic coil clutch. The circuit board (64) connects to and controls the clutch (63) to connect the motor (61) and the reel (62) when the power is on or to separate the motor (61) and the reel (62) when the power is off.

6. The automatic opening and closing electric umbrella according to claim 5, characterized in that: The circuit board (64) is provided with a timing control circuit for controlling the clutch (63) and motor (61) to be powered off at a set time after they are started.

7. The automatic opening and closing electric umbrella according to claim 5, characterized in that: The circuit board (64) is provided with a voltage control circuit, which is used to block the motor (61) when the middle rod (1) is folded into place, and disconnect the power supply of the clutch (63) and the motor (61) when the circuit board detects an increase in the output current.

8. The automatic opening and closing electric umbrella according to claim 5, characterized in that: The circuit board (64) is equipped with a positioning switch. When the middle rod (1) is folded into place, the switch will be touched to de-energize the clutch (63) and the motor (61).

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