Automatic opening and closing mechanism of oversized outdoor umbrella

Abstract

The utility model discloses an automatic opening and closing mechanism of a super-large outdoor umbrella, which comprises an umbrella handle column, a lifting pipe, a lifting driving piece, a transmission assembly and a shaft connecting assembly, and the umbrella handle column is fixed on the ground; the lifting pipe is arranged in the umbrella handle column and is used for being connected with the umbrella ribs; the transmission assembly comprises a lead screw nut and a lead screw, the lead screw nut is fixed in the lifting pipe, and the lead screw is in threaded connection with the lead screw nut; the shaft connecting assembly comprises a connecting shaft, a taper bearing and a plane bearing; one end of the connecting shaft is connected with the screw rod, and the other end of the connecting shaft is connected with an output shaft of the lifting driving piece; in the lifting process, the lifting driving part and the transmission assembly are connected through the shaft connecting assembly, due to the fact that the umbrella rib assembly and the umbrella cover are large in weight, the load borne by the connecting shaft is large in the process that the lifting driving part rotates the transmission assembly, the load borne by the connecting shaft is borne through the taper bearing and the plane bearing, and the load borne by the lifting driving part is reduced; therefore, the opening and closing stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor umbrellas, in particular to an automatic opening and closing mechanism for an extra-large outdoor umbrella. Background Art

[0002] Outdoor umbrellas mainly have the functions of sunshading and rain shielding and are applicable to various leisure places. At present, to facilitate users to open and close outdoor umbrellas, an automatic opening and closing mechanism is provided to automatically open and close outdoor umbrellas. In response to market demand, an outdoor umbrella with a very large umbrella surface area after being opened has emerged. The diameter of the umbrella surface of this kind of outdoor umbrella after being opened is at least ten meters. Therefore, an automatic opening and closing mechanism for this kind of extra-large outdoor umbrella is required. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, an embodiment of the utility model provides an automatic opening and closing mechanism for an extra-large outdoor umbrella, which includes an umbrella handle column, a lifting tube, a lifting driving member, a transmission assembly, and a shaft connection assembly. The umbrella handle column is fixed to the ground; the lifting tube is inserted into the umbrella handle column, and the lifting tube is used to connect with the umbrella ribs; the transmission assembly includes a lead screw nut and a lead screw. The lead screw nut is fixed inside the lifting tube, and the lead screw is in threaded connection with the lead screw nut; the shaft connection assembly includes a connecting shaft, a tapered bearing, and a plain bearing. The connecting shaft is sleeved with the tapered bearing and the plain bearing in sequence from top to bottom; one end of the connecting shaft is connected to the lead screw, and the other end of the connecting shaft is connected to the output shaft of the lifting driving member.

[0004] The utility model has at least the following beneficial effects:

[0005] When the umbrella is opened and closed, the lifting driving member drives the lead screw to rotate, so that the lead screw nut moves up and down relative to the lead screw, thereby driving the lifting tube to extend or retract from the umbrella handle column. At the same time, the connecting shaft is used to connect the lead screw and the output shaft of the lifting driving member, and the tapered bearing and the plain bearing are used to bear the load on the connecting shaft, reducing the load on the lifting driving member to ensure the stability of opening and closing.

[0006] According to some embodiments of the utility model, an inner sleeve is further included. The inner sleeve is arranged inside the umbrella handle column, and the lifting tube is inserted into the inner sleeve.

[0007] According to some embodiments of the utility model, an opening is formed on the wall of the lifting tube, and an auxiliary pulley is installed in the opening. When the auxiliary pulley moves up and down with the lifting tube, the auxiliary pulley rolls on the wall of the inner sleeve.

[0008] According to some embodiments of the present utility model, the auxiliary pulley is rotatably installed between two wheel axle seats, and the wheel axle seats are fixed on the tube wall of the lifting tube; the auxiliary pulley is installed between the two wheel axle seats.

[0009] According to some embodiments of the present utility model, it further includes a bearing seat, and the bearing seat is used for installing the tapered bearing and the plain bearing, and the connecting shaft passes through the bearing seat.

[0010] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0011] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0012] Figure 1 is the overall schematic diagram of the embodiment of the present utility model;

[0013] Figure 2 is the schematic diagram of the use state of the embodiment of the present utility model;

[0014] Figure 3 is Figure 2 the enlarged schematic diagram of A in Detailed Embodiments

[0015] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0016] In the description of the present utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0017] In the description of the present utility model, the meaning of "a plurality of" is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0018] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0019] Referring to Figure 1 As shown, an automatic opening and closing mechanism for an extra-large outdoor umbrella includes an umbrella handle column 200, a lifting tube 300, a lifting driving member 400, a transmission assembly 500, and a shaft connection assembly 600. The umbrella handle column 200 is fixed to the ground; the lifting tube 300 is inserted into the umbrella handle column 200, and the lifting tube 300 is used to connect with the umbrella ribs; the transmission assembly 500 includes a lead screw nut 510 and a lead screw 520. The lead screw nut 510 is fixed inside the lifting tube 300, and the lead screw 520 is threadedly connected with the lead screw nut 510; the shaft connection assembly 600 includes a connecting shaft 610, a tapered bearing 620, and a plain bearing 630. The connecting shaft 610 is sequentially sleeved with the tapered bearing 620 and the plain bearing 630 from top to bottom; one end of the connecting shaft 610 is connected to the lead screw 520, and the other end of the connecting shaft 610 is connected to the output shaft of the lifting driving member 400.

[0020] During the lifting process, the lifting driving member 400 is connected to the transmission assembly 500 through the shaft connection assembly 600. Due to the large weight of the umbrella rib assembly 100 and the umbrella surface, when the lifting driving member 400 rotates the transmission assembly 500, the load on the connecting shaft 610 is very large. Then, the tapered bearing 620 and the plain bearing 630 bear the load on the connecting shaft 610 to reduce the load on the lifting driving member and ensure the stability of opening and closing.

[0021] Referring to Figure 2 As shown, in use, the umbrella rib assembly 100 is connected to the opening and closing mechanism. Specifically, the umbrella rib assembly 100 includes an umbrella disk 110, long umbrella ribs 120, short umbrella ribs 130, a sliding rod 140, and a lower umbrella disk 150. A plurality of long umbrella ribs 120 are hinged on the umbrella disk 110, and the plurality of long umbrella ribs 120 are radially arranged. One end of the short umbrella rib 130 is hinged to the sliding rod 140, and the sliding rod 140 is slidably installed at the bottom of the long umbrella rib 120. The sliding rod 140 reciprocates along the length direction of the long umbrella rib 120, and the other end of the short umbrella rib 130 is hinged to the lower umbrella disk 150; the umbrella handle column 200 is fixed to the ground, and the lower umbrella disk 150 is sleeved and fixed on the umbrella handle column 200.

[0022] During the process of the umbrella unfolding, the lifting drive member 400 drives the screw rod 520 to rotate, causing the screw nut 510 to move downward relative to the screw rod 520, so that the lifting tube 300 descends. During the process of the umbrella disk 110 descending with the lifting tube 300, the sliding rod 140 slides on the long umbrella rib 120 towards the direction of the umbrella disk 110. When the umbrella disk 110 descends to a preset position, the short umbrella rib 130 forms a support for the long umbrella rib 120, causing the umbrella to unfold, so as to realize the unfolding of a large-area umbrella; and during the process of the umbrella folding, the lifting drive member 400 drives the screw rod 520 to rotate in the reverse direction, causing the screw nut 510 to move upward relative to the screw rod 520, and the lifting tube 300 rises. During the process of the umbrella disk 110 rising with the lifting tube 300, the sliding rod 140 slides in the reverse direction on the long umbrella rib 120, sliding in the direction away from the umbrella disk 110. When the umbrella disk 110 rises to a preset position, the short umbrella rib 130 folds towards the direction of the umbrella handle column 200, completing the folding of the umbrella; through the above structure, stable support and folding can be provided for a large-area umbrella surface.

[0023] Referring to Figure 3 As shown, an inner sleeve 700 is provided inside the umbrella handle column 200. The lifting tube 300 is inserted into the inner sleeve 700. An opening 310 is formed on the wall of the lifting tube 300. An auxiliary pulley 800 is installed in the opening 310. The auxiliary pulley 800 is rotatably installed between two wheel axle seats 320. The wheel axle seats 320 are fixed on the wall of the lifting tube 300; an auxiliary pulley 800 is installed between the two wheel axle seats 320. When the auxiliary pulley 800 moves up and down with the lifting tube 300, the auxiliary pulley 800 rolls on the wall of the inner sleeve 700; an auxiliary pulley 800 is installed on the wall of the lifting tube 300. When the lifting tube 300 moves up and down, the auxiliary pulley 800 rolls along the wall of the inner sleeve 700 to improve the stability during the lifting process.

[0024] Referring to Figure 1 As shown, it further includes a bearing seat 640. The bearing seat 640 is used to install a tapered bearing 620 and a plain bearing 630. The connecting shaft 610 passes through the bearing seat 640.

[0025] In the description of this specification, the description with reference to terms such as "some embodiments" or "it is conceivable" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expression of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0026] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. An automatic opening and closing mechanism for an extra-large outdoor umbrella, characterized in that, Comprising: An umbrella handle column (200), which is fixed to the ground; A lifting tube (300), which is inserted into the umbrella handle column (200), and the lifting tube (300) is used to connect with the umbrella ribs; A lifting driving member (400); A transmission assembly (500), the transmission assembly (500) includes a lead screw nut (510) and a lead screw (520), the lead screw nut (510) is fixed inside the lifting tube (300), and the lead screw (520) is threadedly connected with the lead screw nut (510); A shaft connection assembly (600), the shaft connection assembly (600) includes a connecting shaft (610), a tapered bearing (620), and a plain bearing (630), the connecting shaft (610) is sequentially sleeved with the tapered bearing (620) and the plain bearing (630) from top to bottom; one end of the connecting shaft (610) is connected to the lead screw (520), and the other end of the connecting shaft (610) is connected to the output shaft of the lifting driving member (400).

2. The automatic opening and closing mechanism of an extra-large outdoor umbrella according to claim 1, characterized in that, It further includes an inner sleeve (700), the inner sleeve (700) is arranged inside the umbrella handle column (200), and the lifting tube (300) is inserted into the inner sleeve (700).

3. The automatic opening and closing mechanism of an extra-large outdoor umbrella according to claim 2, wherein, An opening (310) is formed on the tube wall of the lifting tube (300), and an auxiliary pulley (800) is installed in the opening (310). When the auxiliary pulley (800) moves up and down with the lifting tube (300), the auxiliary pulley (800) rolls on the tube wall of the inner sleeve (700).

4. The automatic opening and closing mechanism of an extra-large outdoor umbrella according to claim 3, characterized in that, The auxiliary pulley (800) is rotatably installed between two wheel axle seats (320), and the wheel axle seats (320) are fixed on the tube wall of the lifting tube (300); an auxiliary pulley (800) is installed between the two wheel axle seats (320).

5. The automatic opening and closing mechanism of an extra-large outdoor umbrella according to claim 1, characterized in that, It further includes a bearing seat (640), the bearing seat (640) is used to install the tapered bearing (620) and the plain bearing (630), and the connecting shaft (610) passes through the bearing seat (640).

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