Sun umbrella opening and closing locking device and sun umbrella

Abstract

The utility model provides a sun umbrella opening and closing locking device and a sun umbrella, the sun umbrella opening and closing locking device comprises a shell, a large bevel gear, a driving bevel gear, a motor, an adjusting assembly and a driven bevel gear, one side of the shell is provided with an operation hole, and the large bevel gear is rotatably installed in an inner cavity of the shell; according to the sun umbrella opening and closing locking device, when the motor breaks down or is powered off, the adjusting assembly is used for driving the motor and the main bevel gear to transversely move to be away from the large bevel gear, so that the main bevel gear is separated from the large bevel gear; then, a crank handle can be inserted into a connecting hole of the bevel gear wheel, the crank handle is manually shaken to drive the bevel gear wheel to rotate, then the driven bevel gear above is driven to rotate, and the folding action of the sun umbrella is achieved in the state that the motor breaks down or is powered off; power transmission meshing connection between the motor and the bevel gear wheel can be achieved only by manually driving the adjusting assembly to transversely move, the structure is simple, and adjustment is easy, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of parasol technology, specifically to a parasol opening and closing locking device and a parasol. Background Technology

[0002] Outdoor sunshades are often installed in courtyards, terraces, balconies, swimming pools, and outdoor restaurant areas. Due to their large size, manually opening and closing outdoor sunshades can be difficult. To facilitate the opening and closing of outdoor sunshades, they are usually equipped with a motor-driven operating mechanism. Users can easily control the opening and closing of the sunshade by operating the motor to rotate forward or backward.

[0003] In existing technologies, to ensure manual operation of sunshades even in the event of motor malfunction or power outages, outdoor sunshades are equipped with corresponding manual operating devices. For example, a patent with authorization publication number CN221042542U, entitled "A Longitudinal Hand-Cranked DC Motor for an Automobile Sunshade," utilizes a self-locking planetary mechanism mounted on the motor's output shaft. This mechanism includes a fixed gear sleeve, a transmission gear sleeve, and a planetary carrier within the fixed gear sleeve. In the event of motor failure or power outage, manually rotating the hand crank drives the sun gear, which in turn rotates the DC motor's output shaft, thereby closing the sunshade assembly. However, this technology, which uses a self-locking planetary mechanism on the motor's output shaft and relies on the interaction between the self-locking planetary mechanism and the sun gear to achieve unidirectional rotation of the hand crank, has numerous internal parts, a complex structure, and presents significant challenges in subsequent installation, assembly, and maintenance. Furthermore, it suffers from reduced reliability and a high failure rate. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a simple and easy-to-adjust sun umbrella opening and closing locking device and a sun umbrella.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, this application provides a sun umbrella opening and closing locking device, characterized in that it includes:

[0007] The outer casing has an operating hole on one side;

[0008] A large bevel gear is rotatably installed in the inner cavity of the housing. The outer end face of the large bevel gear has a connecting hole for easy insertion and rotation of the hand crank. The connecting hole is connected to the operating hole.

[0009] The main bevel gear is rotatably mounted at the bottom of the inner cavity of the housing. The main bevel gear meshes with the large bevel gear, and the main bevel gear and the bottom end of the housing form a lateral sliding connection that can move away from or towards the large bevel gear.

[0010] The motor is fixedly connected to the main bevel gear;

[0011] An adjustment assembly is provided, wherein the main bevel gear is fixedly mounted on the adjustment assembly, the adjustment assembly is mounted at the bottom end of the housing, and the adjustment assembly is used to drive the main bevel gear to slide laterally along the housing;

[0012] A driven bevel gear is rotatably mounted on the upper part of the inner cavity of the housing, and the driven bevel gear meshes with the large bevel gear.

[0013] Furthermore, the adjustment assembly includes a slider and a pair of adjustment bolts. The slider is laterally slidably mounted on the bottom end of the housing. The pair of adjustment bolts are respectively mounted on opposite sides of the slider along a sliding direction parallel to the slider. A mounting hole is provided at the bottom end of the slider. The motor is fixedly mounted on the slider. The output shaft of the motor passes vertically through the mounting hole and is connected to the main bevel gear. One end of the adjustment bolt passes through the housing and the slider and abuts against the output shaft of the motor.

[0014] Furthermore, the slider is provided with sliding grooves on its two opposite sides parallel to its sliding direction, and the bottom end of the outer shell is provided with a sliding rail that cooperates with the slider.

[0015] Secondly, this application also provides a parasol, including a parasol opening and closing locking device as described above.

[0016] The beneficial effects of this utility model are as follows:

[0017] By employing the aforementioned umbrella opening and closing locking device, in the event of a motor malfunction or power outage, the adjusting component drives the motor and main bevel gear to move laterally away from the large bevel gear, disengaging them. Then, a hand crank can be inserted into the connection hole of the large bevel gear and manually cranked to rotate the large bevel gear, which in turn rotates the driven bevel gear above. This enables the umbrella to open and close in the event of a motor malfunction or power outage. Since the engagement of the power transmission between the motor and the large bevel gear can be controlled solely by manually moving the adjusting component laterally, the structure is simple, and the adjustment is quick and easy. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the sun umbrella opening and closing locking device in the embodiments of this application.

[0019] Figure 2This is a three-dimensional structural diagram of the sun umbrella opening and closing locking device in the embodiments of this application (after removing the outer shell).

[0020] Figure 3 A three-dimensional structural diagram of the sun umbrella opening and closing locking device from another angle (after removing the outer shell).

[0021] Figure 4 This is a schematic diagram of the structure at the bottom of the outer shell in an embodiment of this application.

[0022] Figure 5 This is a three-dimensional structural diagram of the large bevel gear in an embodiment of this application.

[0023] Figure 6 This is a structural schematic diagram of the sun umbrella opening and closing locking device in the embodiment of this application from a bottom view (after removing the outer shell).

[0024] Figure 7 for Figure 6 A schematic diagram of the AA-direction cross-section structure.

[0025] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the diagram.

[0026] Figure 9 This is a three-dimensional structural diagram of the slider in an embodiment of this application.

[0027] In the picture:

[0028] 100-Sun umbrella opening and closing locking device;

[0029] 10-Outer casing; 11-Operating hole; 12-Slide rail;

[0030] 20 - Large bevel gear; 21 - Connecting hole;

[0031] 30 - Main bevel gear;

[0032] 40 - Driven bevel gear;

[0033] 51-Slider; 52-Mounting hole; 53-Adjusting bolt; 54-Slide groove. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] See appendix Figure 1 To be continued Figure 4As shown, this embodiment provides a parasol opening and closing locking device 100, including a housing 10, a large bevel gear 20, a main bevel gear 30, a motor, an adjustment component, and a driven bevel gear 40. The large bevel gear 20, the main bevel gear 30, and the driven bevel gear 40 are installed in the inner cavity of the housing 10.

[0036] Continue to refer to the appendix Figure 1 To be continued Figure 5 As shown, in this embodiment, an operation hole 11 is provided on one side of the outer casing 10. This operation hole 11 is for inserting one end of a hand crank handle. The large bevel gear 20 is rotatably installed in the inner cavity of the outer casing 10. A connecting hole 21 is provided on the outer end face of the large bevel gear 20 to facilitate insertion and rotation of the hand crank handle. The connecting hole 21 is connected to the operation hole 11. That is, when the large bevel gear 20 needs to be manually rotated, the operator can pass one end of the hand crank handle through the operation hole 11 into the connecting hole 21. Rotating the hand crank handle will cause the large bevel gear 20 to rotate synchronously.

[0037] See attached document Figure 2 and attached Figure 3 Appendix Figure 6 To be continued Figure 8 As shown, in this embodiment, the main bevel gear 30 is rotatably mounted at the bottom of the inner cavity of the housing 10. The main bevel gear 30 meshes with the large bevel gear 20, and the main bevel gear 30 and the bottom end of the housing 10 form a lateral sliding connection that can move away from or closer to the large bevel gear 20. That is, through the lateral sliding of the main bevel gear 30, the main bevel gear 30 and the large bevel gear 20 can be meshed and driven, or their meshing and driving can be disconnected. A motor (not shown in the figure) is fixedly mounted at the bottom of the main bevel gear 30, and the motor is used to drive the main bevel gear 30 to rotate.

[0038] In this embodiment, the main bevel gear 30 is fixedly mounted on the adjustment assembly via a motor; that is, the output shaft of the motor is fixedly connected to the main bevel gear 30, and the motor is also fixedly mounted on the adjustment assembly. The adjustment assembly is installed at the bottom of the housing 10, and the adjustment assembly is used to drive the main bevel gear 30 to slide laterally along the housing 10.

[0039] See attached document Figure 2 and attached Figure 7 As shown, the driven bevel gear 40 is rotatably mounted on the upper part of the inner cavity of the housing 10. The driven bevel gear 40 meshes with the large bevel gear 20. At the same time, the driven bevel gear 40 is connected to the sun umbrella assembly to control the opening and closing of the sun umbrella. Controlling the opening and closing of the sun umbrella by rotating the driven bevel gear 40 in the forward and reverse directions is the prior art, and will not be described again here.

[0040] In use, the power output by the motor is first transmitted to the main bevel gear 30, which then transmits the power to the driven bevel gear 40 above through the large bevel gear 20. After receiving the power, the driven bevel gear 40 drives the sun umbrella assembly to perform the corresponding actions.

[0041] See attached document Figure 3 and attached Figure 6 To be continued Figure 9 As shown, specifically, the adjustment assembly includes a slider 51 and a pair of adjusting bolts 53. The slider 51 is laterally slidably mounted on the bottom end of the housing 10, as shown in the attached diagram. Figure 3 and attached Figure 9 As shown, for example, slider 51 has grooves 54 on its opposite sides parallel to its sliding direction, and the bottom of housing 10 has a slide rail 12 that mates with slider 51. A pair of adjusting bolts 53 are installed on opposite sides of slider 51 parallel to its sliding direction. A mounting hole 52 is provided at the bottom of slider 51. The motor is fixedly installed at the bottom of slider 51. The output shaft of the motor passes vertically through the mounting hole 52 and is connected to the main bevel gear 30. One end of the adjusting bolt 53 passes through housing 10 and slider 51 and abuts against the output shaft of the motor.

[0042] See attached document Figure 3 , 7 and attached Figure 8 As shown, when the motor malfunctions or loses power, the adjusting assembly drives the motor and the main bevel gear 30 to move laterally away from the large bevel gear 20, thus disengaging the main bevel gear 30 from the large bevel gear 20. Specifically, for example, it may be necessary to move the main bevel gear 30 to the right (see attached diagram). Figure 8As shown), away from the large bevel gear 20, the operator can first loosen the locking screw between the slider 51 and the bottom of the housing 10 (not shown in the figure). It is understood that the locking screw is installed in a long, narrow, oblong hole to allow the slider 51 to move laterally. After loosening the locking screw, it can still move laterally synchronously with the slider 51. Then, by turning the adjusting bolt 53 on the right side, it extends outwards to the right, ensuring that the adjusting bolt 53 is not in contact with the motor's output shaft, allowing the motor to move to the right (i.e., avoiding positional interference between the motor and the adjusting bolt 53 when moving to the right). Simultaneously, the operator turns the adjusting bolt on the left side... Bolt 53 causes one end of the left adjusting bolt 53 to move to the right, generating a force on the motor output shaft to move to the right, causing the slider 51 to move to the right along the bottom of the housing 10 until the motor output shaft and the right adjusting bolt 53 come into contact. At this time, the main bevel gear 30 disengages from the large bevel gear 20. Then, the hand crank can be inserted into the connecting hole 21 of the large bevel gear 20 and manually cranked to rotate the large bevel gear 20, which in turn drives the driven bevel gear 40 above to rotate, realizing the opening and closing action of the sun umbrella in the event of motor failure or power failure. Since the engagement and disengagement of the power transmission between the motor and the large bevel gear 20 can be achieved by manually moving the adjusting component laterally, its structure is simple and the adjustment is simple, convenient and quick.

[0043] In addition, this embodiment also provides a parasol, including a parasol opening and closing locking device 100 as described above.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sun umbrella opening and closing locking device, characterized in that, include: The outer casing has an operating hole on one side; A large bevel gear is rotatably installed in the inner cavity of the housing. The outer end face of the large bevel gear has a connecting hole for easy insertion and rotation of the hand crank. The connecting hole is connected to the operating hole. The main bevel gear is rotatably mounted at the bottom of the inner cavity of the housing. The main bevel gear meshes with the large bevel gear, and the main bevel gear and the bottom end of the housing form a lateral sliding connection that can move away from or towards the large bevel gear. The motor is fixedly connected to the main bevel gear; An adjustment assembly is provided, wherein the main bevel gear is fixedly mounted on the adjustment assembly, the adjustment assembly is mounted at the bottom end of the housing, and the adjustment assembly is used to drive the main bevel gear to slide laterally along the housing; A driven bevel gear is rotatably mounted on the upper part of the inner cavity of the housing, and the driven bevel gear meshes with the large bevel gear.

2. The umbrella opening and closing locking device according to claim 1, characterized in that, The adjustment assembly includes a slider and a pair of adjustment bolts. The slider is slidably mounted on the bottom end of the housing. The pair of adjustment bolts are respectively mounted on opposite sides of the slider along a sliding direction parallel to the slider. The bottom end of the slider has a mounting hole. The motor is fixedly mounted on the slider. The output shaft of the motor passes vertically through the mounting hole and is connected to the main bevel gear. One end of the adjustment bolt passes through the housing and the slider and abuts against the output shaft of the motor.

3. The umbrella opening and closing locking device according to claim 2, characterized in that, The slider is provided with sliding grooves on its two opposite sides parallel to its sliding direction, and the bottom of the outer shell is provided with a sliding rail that cooperates with the slider.

4. A sun umbrella, characterized in that, The invention includes a parasol opening and closing locking device as described in any one of claims 1 to 3 above.

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