Umbrella base structure

Abstract

The utility model discloses an umbrella seat structure which is characterized in that a pedal component, a roller component and a lifting component are detachably assembled on a bottom frame, rollers are respectively arranged on the roller component, the pedal component controls the rollers to ascend and descend, the lifting component is arranged in the center of the bottom frame, and the lifting component comprises a guide part and a lifting part. The inner end of the pedal assembly is hinged to the lifting part, the middle of the pedal assembly is rotationally connected with the bottom frame, the inner end of each roller assembly is hinged to the lifting part, and the middle of each roller assembly is rotationally connected with the bottom frame. The upper end of the guiding piece is fixed to the bottom frame, a heart-shaped annular groove is formed in the guiding piece, the bottom end of the heart-shaped annular groove vertically extends downwards to form an extending groove, the extending groove is communicated with the heart-shaped annular groove to form a track groove, and a downward concave part is formed in the upper portion of the heart-shaped annular groove. And a positioning block extending into the track groove is arranged on the positioning rod. The device has the advantages of being reasonable in structure, easy to manufacture, convenient to operate and move and low in transportation cost.

Description

Technical Field

[0001] This utility model relates to the field of mobile umbrella manufacturing technology, specifically an umbrella base structure. Background Technology

[0002] Outdoor parasols generally consist of an umbrella body and a base. To ensure the stability of the umbrella, the base often needs to be counterweighted (currently, umbrella bases generally use water tanks for counterweighting). With the counterweight, the base is heavy and does not move.

[0003] A patent application with application number CN202221963413.6 entitled "A Mobile Sun Umbrella Base" discloses a mobile sun umbrella base, including a base frame. The base frame includes a bottom frame and a mounting seat disposed on the bottom frame. A roller assembly and a lifting assembly are provided between the bottom frame and the mounting seat. The roller assembly includes at least three radially distributed lever supports. The fulcrum end of the lever support is provided with a connecting seat, and the other end is provided with a roller. The lifting assembly includes a lifting rod. The lower part of the lifting rod is fixed to the connecting seat, and the upper part is provided with a limiting component. The limiting component can be locked or disengaged with a locking component by the lifting of the lifting rod. The lifting rod is used to synchronously drive the connecting seat to move up and down. The connecting seat moves by a rocker motion, allowing the roller to contact the ground, thus completing the base movement. The connecting seat moves by a rocker motion, allowing the roller to disengage from the ground, thus completing the base placement. The base structure balances ease of movement and reliability during fixing through the lifting and lowering of rollers. However, its lifting structure is complex and has high manufacturing costs. Specifically, its limiting component includes a limiting cylinder, within which is a locking element fixed to the top of the lifting rod. The locking element comprises an arc-shaped cap and a columnar rod. At the bottom of the limiting cylinder is a fixing block fixed to the lower part of the columnar rod of the locking element. A second locking element is located on the columnar rod between the fixing block and the arc-shaped cap, allowing it to slide up and down along the rod. When the second locking element connects with the arc-shaped cap of the first locking element, they can cooperate to form an elliptical or spherical shape. The locking component includes a slot on the side wall of the limiting cylinder, with an elastic stop inside one slot. The elastic stop passes through the slot and enters the limiting cylinder. Therefore, its structure requires further improvement. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies and to disclose to the public an umbrella base structure that is reasonable in structure, simple to manufacture, convenient to operate and move, and has low transportation costs.

[0005] The technical solution of this utility model is implemented as follows:

[0006] An umbrella stand structure includes a base frame, on which a foot pedal assembly, a roller assembly, and a lifting assembly are detachably mounted. The roller assembly is provided with rollers, the foot pedal assembly controls the lifting of the rollers, and the lifting assembly is located at the center of the base frame.

[0007] The lifting assembly includes a guide and a lifting component. The inner end of the foot pedal assembly is hinged to the lifting component, and the middle part of the foot pedal assembly is rotatably connected to the base frame. The inner ends of each roller assembly are hinged to the lifting component, and the middle part of the roller assembly is rotatably connected to the base frame.

[0008] The upper end of the guide member is fixed to the base frame. The guide member is provided with a heart-shaped annular groove. The bottom end of the heart-shaped annular groove extends vertically downward to form an extension groove. The extension groove communicates with the heart-shaped annular groove to form a track groove. A recess is formed in the upper part of the heart-shaped annular groove. A positioning rod is rotatably connected to the lifting member. A positioning block is provided on the positioning rod that extends into the track groove. When the positioning block is located at the bottom end of the extension groove, the roller of the roller assembly is in an upward state. When the positioning block is located in the recess, the roller of the roller assembly is in a downward state.

[0009] Further optimization measures for this technical solution are as follows:

[0010] As an improvement, a central island is provided at the center of the heart-shaped annular groove, and a guide slope is provided at the lower part of the central island. The longitudinal projection of the extension groove is located within the range of the guide slope. Utilizing the guiding effect of the guide slope, the positioning block enters the heart-shaped annular groove from the extension groove along a predetermined direction.

[0011] As an improvement, the guide member is fitted with an outer cover, and the positioning rod is located between the guide member and the outer cover. The outer cover is used to limit the positioning rod, preventing the positioning block from dislodging from the track groove.

[0012] As an improvement, the guide is provided with a locking groove, and the outer cover is provided with a locking protrusion that matches the locking groove.

[0013] As an improvement, the outer cover and the guide member are aligned and fixed together to form a cylindrical structure.

[0014] As an improvement, the lifting component is provided with a guide bar, and the guide component is provided with a guide groove that matches the guide bar. Through the guiding cooperation between the guide bar and the guide groove, the lifting movement of the lifting component is smoother and more stable.

[0015] As an improvement, the base frame is provided with a bottom plate and a top plate at its center, a support column is provided between the bottom plate and the top plate, and the upper end of the guide member is fixed to the top plate.

[0016] As an improvement, the foot pedal assembly includes a foot pedal arm, and a foot pedal is fixed to the outer end of the foot pedal arm.

[0017] As an improvement, the roller assembly includes a roller arm, and the roller is fixed to the outer end of the roller arm.

[0018] The advantages of this utility model compared with the prior art are:

[0019] This utility model discloses an umbrella stand structure with a reasonable structure. It features a lifting component set at the center of the base frame. The lifting component mainly includes a guide, a lifting component, and a positioning rod. The guide has a track groove formed by an extension groove and a heart-shaped annular groove. The positioning block of the positioning rod extends into the track groove. When the foot pedal is stepped on, it will drive the positioning block of the positioning rod to move in the track groove. When the positioning block is at the bottom of the extension groove, the rollers of the roller assembly are in the rising state, that is, the base frame of the umbrella stand is on the ground, and the umbrella stand cannot move. When the positioning block is in the concave part, the rollers of the roller assembly are in the descending state, that is, the rollers are on the ground and lift the base frame off the ground, and the umbrella stand can be moved by the rollers.

[0020] In addition, the umbrella holder structure of this utility model adopts a modular structure, which is easy to assemble and can reduce the packaging volume during transportation and reduce transportation costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the roller of this utility model in the rising state;

[0022] Figure 2 This is a cross-sectional view of the roller of this utility model in the raised state;

[0023] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0024] Figure 4 This is a three-dimensional structural diagram of the roller of this utility model in the descending state;

[0025] Figure 5 This is a cross-sectional view of the roller of this utility model in the lowered state;

[0026] Figure 6 yes Figure 5 Enlarged view of section B in the middle;

[0027] Figure 7 This is a three-dimensional structural diagram of the lifting component of this utility model;

[0028] Figure 8 This is a three-dimensional structural diagram of the lifting component of this utility model from another perspective;

[0029] Figure 9This is an exploded view of the lifting component of this utility model;

[0030] Figure 10 This is an exploded view of the lifting component of this utility model from another perspective;

[0031] Figure 11 This is an exploded view of the present invention.

[0032] The names of the reference numerals in the accompanying drawings of this utility model are:

[0033] Base frame 1, base plate 11, top plate 12, support column 13, foot pedal assembly 2, foot pedal arm 21, foot pedal 22, roller assembly 3, roller 31, roller arm 32, guide component 4, heart-shaped annular groove 4a, extension groove 4b, recessed part 4c, central island 4d, guide slope 4e, locking groove 41, guide groove 42, lifting component 5, guide bar 51, positioning rod 6, positioning block 61, outer cover 7, locking protrusion 71. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings:

[0035] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0037] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0038] like Figures 1 to 11As shown, an umbrella stand structure includes a base frame 1, on which a foot pedal assembly 2, a roller assembly 3, and a lifting assembly are detachably mounted. The roller assembly 3 is provided with rollers 31, the foot pedal assembly 2 controls the lifting of the rollers 31, and the lifting assembly is located at the center of the base frame 1.

[0039] The lifting assembly includes a guide member 4 and a lifting member 5. The inner end of the foot pedal assembly is hinged to the lifting member 5. The middle part of the foot pedal assembly is rotatably connected to the base frame 1. The inner ends of each roller assembly 3 are hinged to the lifting member 5. The middle part of the roller assembly 3 is rotatably connected to the base frame 1.

[0040] The upper end of the guide member 4 is fixed to the base frame 1. The guide member 4 is provided with a heart-shaped annular groove 4a. The bottom end of the heart-shaped annular groove 4a extends vertically downward to form an extension groove 4b. The extension groove 4b communicates with the heart-shaped annular groove 4a to form a track groove. The upper part of the heart-shaped annular groove 4a has a recessed portion 4c. The lifting member 5 is rotatably connected to a positioning rod 6. The positioning rod 6 is provided with a positioning block 61 that extends into the track groove. When the positioning block 61 is located at the bottom end of the extension groove 4b, the roller 31 of the roller assembly 3 is in a raised state. When the positioning block 61 is located at the recessed portion 4c, the roller 31 of the roller assembly 3 is in a lowered state.

[0041] The positioning rod 6 is rotatably connected to the lifting component 5 via a rotating shaft.

[0042] The heart-shaped annular groove 4a has a central island 4d at its center, and a guide slope 4e is provided at the lower part of the central island 4d. The longitudinal projection of the extension groove 4b is located within the range of the guide slope 4e. Figure 3 As shown, after the positioning block 61 enters the heart-shaped annular groove 4a from the extension groove 4b, it moves in a counterclockwise direction. A guide slope 4e is provided to ensure that the positioning block 61 can run along the designed trajectory.

[0043] The guide member 4 is fitted with an outer cover 7, and the positioning rod 6 is located between the guide member 4 and the outer cover 7. The outer cover 7 restricts the position of the positioning rod 6, preventing the positioning block 61 from disengaging from the track groove.

[0044] The guide member 4 is provided with a matching groove 41, and the outer cover 7 is provided with a matching protrusion 71 that matches the matching groove 41.

[0045] The outer cover 7 and the guide member 4 are engaged and fixed together to form a cylindrical structure.

[0046] The lifting component 5 is provided with a guide bar 51, and the guide component 4 is provided with a guide groove 42 that matches the guide bar 51. Through the cooperation of the guide bar 51 and the guide groove 42, the lifting movement of the lifting component 5 can be made smoother and more reliable.

[0047] The base frame 1 has a base plate 11 and a top plate 12 at its center, and a support column 13 is provided between the base plate 11 and the top plate 12. The upper end of the guide member 4 is fixed to the top plate 12.

[0048] The foot pedal assembly 2 includes a foot pedal arm 21, and a foot pedal 22 is fixed to the outer end of the foot pedal arm 21.

[0049] The roller assembly 3 includes a roller arm 32, and the roller 31 is fixed to the outer end of the roller arm 32.

[0050] This utility model discloses an umbrella holder structure, which adopts a modular structure. The base frame 1 is assembled from a steel frame structure, which is convenient to assemble and can reduce the packaging volume during transportation, thereby reducing transportation costs. In this embodiment, the base frame 1 is provided with 4 sets of roller assemblies 3.

[0051] Working principle:

[0052] In the umbrella holder structure of this utility model, the movement of the foot pedal assembly 2 utilizes the lever principle. The connection point between the middle of the foot pedal arm 21 and the base frame 1 serves as the fulcrum. When the foot pedal 22 at the outer end of the foot pedal arm 21 is stepped on, it drives the lifting member 5 connected to the inner end to move upward. Similarly, the movement of the roller assembly 3 also utilizes the lever principle. When the lifting member 5 moves, the connection point between the middle of the roller arm 32 and the base frame 1 serves as the fulcrum, driving the roller 31 at the outer end of the roller arm 32 to rise and fall.

[0053] like Figure 1 and Figure 3 As shown, when the positioning block 61 is at the bottom of the extension groove 4b, the roller 31 of the roller assembly 3 is in an upward state, meaning that the base frame 1 of the umbrella stand is on the ground and the umbrella stand is in a fixed state. At this time, stepping on the foot pedal 22 at the outer end of the foot pedal arm 21 will cause the foot pedal arm 21 to move the lifting component 5 upward, and at the same time, it will cause the positioning block 61 on the positioning rod 6 to move upward along the extension groove 4b. Under the action of the guide inclined surface 4e, it will move upward from the right side of the heart-shaped annular groove 4a to above the recessed part 4c. When the foot pedal 22 is released, under the action of gravity, the lifting component 5 will cause the positioning block 61 on the positioning rod 6 to fall into the recessed part 4c, which will then cause the roller 31 at the outer end of the roller arm 32 to descend, lifting the base frame 1 off the ground and entering the moving state. At this time, the umbrella stand can be moved easily using the roller 31.

[0054] like Figure 4 and Figure 6As shown, at this time, the positioning block 61 is located in the recessed part 4c, and the roller 31 of the roller assembly 3 is in a descending state. That is to say, at this time, the base frame 1 of the umbrella stand is off the ground, the roller 31 of the roller assembly 3 is on the ground, and the umbrella stand is in a moving state. At this time, stepping on the foot pedal 22 at the outer end of the foot pedal arm 21 again will cause the foot pedal arm 21 to drive the lifting component 5 to move upward, and at the same time drive the positioning block 61 on the positioning rod 6 to leave the recessed part 4c and continue to move along the left side of the heart-shaped annular groove 4a. When the foot pedal 22 is released, under the action of gravity, the positioning block 61 falls into the extension groove 4b and finally falls into the bottom end of the extension groove 4b, thereby driving the roller 31 at the outer end of the roller arm 32 to rise off the ground, and the umbrella stand enters a fixed state.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An umbrella stand structure, comprising a base frame (1), characterized in that: The base frame (1) is detachably equipped with a foot pedal assembly (2), a roller assembly (3) and a lifting assembly. The roller assembly (3) is provided with rollers (31). The foot pedal assembly (2) controls the lifting of the rollers (31). The lifting assembly is located at the center of the base frame (1). The lifting assembly includes a guide (4) and a lifting component (5). The inner end of the foot pedal assembly is hinged to the lifting component (5). The middle part of the foot pedal assembly is rotatably connected to the base frame (1). The inner end of each roller assembly (3) is hinged to the lifting component (5). The middle part of the roller assembly (3) is rotatably connected to the base frame (1). The upper end of the guide member (4) is fixed to the base frame (1). The guide member (4) is provided with a heart-shaped annular groove (4a). The bottom end of the heart-shaped annular groove (4a) extends vertically downward to form an extension groove (4b). The extension groove (4b) communicates with the heart-shaped annular groove (4a) to form a track groove. The upper part of the heart-shaped annular groove (4a) is formed with a recess (4c). The lifting member (5) is rotatably connected with a positioning rod (6). The positioning rod (6) is provided with a positioning block (61) that extends into the track groove. When the positioning block (61) is located at the bottom end of the extension groove (4b), the roller (31) of the roller assembly (3) is in a rising state. When the positioning block (61) is located in the recess (4c), the roller (31) of the roller assembly (3) is in a falling state.

2. The umbrella base structure according to claim 1, characterized in that: The heart-shaped annular groove (4a) has a central island (4d) at its center, and a guide slope (4e) is provided at the lower part of the central island (4d). The longitudinal projection of the extension groove (4b) is located within the range of the guide slope (4e).

3. The umbrella base structure according to claim 2, characterized in that: The guide member (4) is fitted with an outer cover (7), and the positioning rod (6) is located between the guide member (4) and the outer cover (7).

4. The umbrella base structure according to claim 3, characterized in that: The guide member (4) is provided with a matching groove (41), and the outer cover (7) is provided with a matching protrusion (71) that matches the matching groove (41).

5. The umbrella base structure according to claim 4, characterized in that: The outer cover (7) and the guide (4) are engaged and fixed together to form a cylindrical structure.

6. The umbrella base structure according to claim 5, characterized in that: The lifting component (5) is provided with a guide bar (51), and the guide component (4) is provided with a guide groove (42) that is compatible with the guide bar (51).

7. The umbrella base structure according to claim 6, characterized in that: The base frame (1) has a base plate (11) and a top plate (12) at its center. A support column (13) is provided between the base plate (11) and the top plate (12). The upper end of the guide member (4) is fixed to the top plate (12).

8. The umbrella base structure according to claim 7, characterized in that: The foot pedal assembly (2) includes a foot pedal arm (21), and a foot pedal (22) is fixed to the outer end of the foot pedal arm (21).

9. The umbrella base structure according to claim 8, characterized in that: The roller assembly (3) includes a roller arm (32), and the roller (31) is fixed to the outer end of the roller arm (32).

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