Umbrella base structure

Abstract

A pedal assembly, a roller assembly and a lifting assembly are detachably assembled on a bottom frame of the umbrella base structure, the pedal assembly controls a roller of the roller assembly to ascend and descend, the lifting assembly comprises a guide part and a lifting part, the inner end of the pedal assembly is hinged to the lifting part, and 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 piece, and the middle of each roller assembly is rotationally connected with the bottom frame. The upper end of the guide part is fixed to the bottom frame, a track groove is formed in the guide part, a positioning rod is connected to the lifting part, a rotating head stretching into the track groove is arranged on the positioning rod, the rotating head can form a first width state and a second width state through rotation, a vertical section is arranged on the lower portion of the track groove, and the width of the vertical section is larger than the first width. A driving part for driving the rotating head to rotate is arranged at the upper part of the track groove. 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 reasonably structured, simple to manufacture, easy 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 track groove. The lifting member is connected to a positioning rod. The positioning rod is provided with a rotating head that extends into the track groove. The rotating head can be rotated to form a first width state and a second width state. The lower part of the track groove is provided with a vertical section. The width of the vertical section is greater than the first width but less than the second width. The upper part of the track groove is provided with a driving part that drives the rotating head to rotate. When the rotating head is in the first width state at the bottom of the vertical section, the roller of the roller assembly is in the rising state. When the rotating head is in the second width state at the top of the vertical section, the roller of the roller assembly is in the falling state.

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

[0010] As an improvement, a clearance groove is provided on the guide member above the drive unit. The clearance groove ensures smooth rotation of the rotating head.

[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 lifting component is provided with a first guide bar, and the guide bar is provided with a first guide groove that matches the first guide bar. The cooperation between the first guide bar and the first guide groove makes the lifting of the lifting component smoother and more reliable.

[0014] As an improvement, the guide member is provided with a second guide strip, and the positioning rod is provided with a second guide groove that matches the second guide strip. The cooperation between the second guide strip and the second guide groove allows the positioning rod to move more smoothly during lifting and lowering.

[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] The umbrella stand structure of this utility model is reasonably designed. It features a lifting assembly at the center of the base frame. The lifting assembly mainly includes a guide, a lifting component, and a positioning rod. The guide has a track groove, and the positioning rod has a rotating head with a first width and a second width. When the foot pedal is stepped on, it drives the rotating head of the positioning rod to move within the track groove. When the rotating head is at the bottom of the vertical section with the first width, the rollers of the roller assembly are in an upward state, meaning the base frame of the umbrella stand is on the ground, and the umbrella stand is in a fixed state. When the rotating head is at the top of the vertical section with the second width, the rollers of the roller assembly are in a downward state, meaning the rollers are on the ground, lifting the base frame off the ground, and the umbrella stand can then be moved using the rollers, thus being in a mobile state.

[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 9 This 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, vertical section 4a, drive unit 4b, clearance groove 4c, locking groove 41, first guide groove 42, second guide bar 43, lifting component 5, first guide bar 51, positioning rod 6, rotating head 61, second guide groove 62, 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 11 As 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 track groove. The lifting member 5 is connected to a positioning rod 6. The positioning rod 6 is provided with a rotating head 61 that extends into the track groove. The rotating head 61 can be rotated to form a first width state and a second width state. The lower part of the track groove is provided with a vertical section 4a. The width of the vertical section 4a is greater than the first width but less than the second width. The upper part of the track groove is provided with a driving part 4b that drives the rotating head 61 to rotate. When the rotating head 61 is in the first width state at the bottom of the vertical section 4a, the roller 31 of the roller assembly 3 is in the rising state. When the rotating head 61 is in the second width state at the top of the vertical section 4a, the roller 31 of the roller assembly 3 is in the falling state.

[0041] In this embodiment, vertical surfaces are provided on both sides of the rotating head 61, the width between the two vertical surfaces is the first width, and the width perpendicular to the first width direction is the second width.

[0042] The guide member 4 is provided with a clearance groove 4c above the drive unit 4b. The clearance groove 4c ensures the smooth rotation of the rotating head.

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

[0046] The guide member 4 is provided with a second guide bar 43, and the positioning rod 6 is provided with a second guide groove 62 that matches the second guide bar 43. The second guide bar 43 and the second guide groove 62 play a guiding role when the positioning rod 6 moves up and down.

[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 3As shown, at this time, the rotating head 61 is in the first width state at the bottom of the vertical section 4a, and the roller 31 of the roller assembly 3 is in the rising state. That is to say, at this time, 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 drive the lifting component 5 to move upward, and at the same time drive the rotating head 61 on the positioning rod 6 to move upward along the vertical section 4a of the track groove until the rotating head 61 contacts the driving part 4b. Under the action of the driving part 4b, the rotating head 61 rotates from the first width state to the second width state. When the foot pedal 22 is released, under the action of gravity, the lifting component 5 drives the positioning rod 6 to fall. Since the width of the vertical section 4a is less than the second width, the rotating head 61 will not be able to enter the vertical section 4a. The rotating head 61 stops at the upper end of the vertical section 4a, and then drives the roller 31 at the outer end of the roller arm 32 to fall, 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 6 As shown, at this time, the rotating head 61 is in the second width state at the top of the vertical section 4a, and the roller 31 of the roller assembly 3 is in the 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 rotating head 61 on the positioning rod 6 to move upward until it contacts the drive part 4b. Under the action of the drive part 4b, the rotating head 61 rotates from the second width state to the first width state. When the foot pedal 22 is released, the lifting component 5 moves downward under the action of gravity, driving the positioning rod 6 to move downward. Since the width of the vertical section 4a is greater than the first width, the rotating head 61 enters the vertical section 4a and finally falls to the bottom of the vertical section 4a, thereby driving the roller 31 at the outer end of the roller arm 32 to rise off the ground, and the umbrella stand enters the 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 track groove. The lifting member (5) is connected with a positioning rod (6). The positioning rod (6) is provided with a rotating head (61) that extends into the track groove. The rotating head (61) can form a first width state and a second width state by rotating. The lower part of the track groove is provided with a vertical section (4a). The width of the vertical section (4a) is greater than the first width but less than the second width. The upper part of the track groove is provided with a driving part (4b) that drives the rotating head (61) to rotate. When the rotating head (61) is in the first width state at the bottom of the vertical section (4a), the roller (31) of the roller assembly (3) is in the rising state. When the rotating head (61) is in the second width state at the top of the vertical section (4a), the roller (31) of the roller assembly (3) is in the falling state.

2. The umbrella base structure according to claim 1, characterized in that: The guide member (4) is provided with a clearance groove (4c) above the drive part (4b).

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 lifting component (5) is provided with a first guide bar (51), and the guide component (4) is provided with a first guide groove (42) that is adapted to the first guide bar (51).

6. The umbrella base structure according to claim 5, characterized in that: The guide member (4) is provided with a second guide bar (43), and the positioning rod (6) is provided with a second guide groove (62) that is adapted to the second guide bar (43).

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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