Assembly type movable base of Roman umbrella

Abstract

The utility model relates to a Roman umbrella assembly type mobile base, the upper end face of the mobile base is provided with a mounting seat for fixing an umbrella rod, the lower end face of the mobile base is provided with bottom wheels and a supporting plate, and the lower end face of the mobile base is provided with a first recovery groove and a second recovery groove; a swing assembly connected to the bottom wheel is arranged in the first recovery tank, and the bottom wheel is driven by the swing assembly to stretch out of or retract into the first recovery tank. A telescopic assembly connected to the supporting plate is arranged in the second recycling groove, and the supporting plate is driven by the telescopic assembly to stretch out of or retract into the second recycling groove. And counterweight grooves for mounting the counterweight blocks are symmetrically formed in two sides of the movable seat. The defects that in the prior art, when a lifting mechanism fails due to the fact that the weak stress position of a lever is prone to being damaged and broken, four bottom wheels cannot stretch out normally, and the structural reliability is not high are overcome, and the situations that when a user needs to add balance weights, a reliable connection relation between a heavy object simply placed on a base and the base is lacked, and the structure is not stable are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrella accessories, in particular to an assembled mobile base for a Roman umbrella. Background Art

[0002] The Roman umbrella is an outdoor parasol. It has a wide area under the umbrella and good sunshade effect, and is very popular in China.

[0003] For aesthetics and practicality, the Roman umbrella has a larger umbrella and a smaller base. To ensure the stability of the Roman umbrella during actual use, a counterweight is often provided on the base to prevent the Roman umbrella from tipping over when opened. However, after the counterweight is provided, the overall mass of the Roman umbrella is larger, which makes it difficult to carry.

[0004] A Chinese utility model patent with publication number CN210988588U discloses a movable base for a large Roman umbrella, including a base assembly, a support tube arranged at the center of the base assembly, a lifting rod lifting mechanism arranged at the upper end of the support tube, a lifting rod arranged at the lower end of the support tube, a plurality of levers rotatably connected to the base assembly, and a plurality of bottom wheels arranged on the base assembly. The lifting rod lifting mechanism is connected to the lifting rod, one end of the lever is connected to the lifting rod, and the other end is connected to the bottom wheel. The lifting rod lifting mechanism can drive the lifting rod to move upward, and when the lifting rod moves upward, it can drive the lever to rotate, and when the lever rotates, it can drive the bottom wheel to extend downward from the bottom of the base assembly.

[0005] In actual application environments, the movable base of the large Roman umbrella described above has a long lever across the base, which is prone to damage and breakage at locations where stress is weak. When the lifting mechanism in the middle fails, the four bottom wheels cannot be extended normally, making it difficult for users to carry the Roman umbrella, resulting in a defect of low structural reliability.

[0006] In addition, the counterweight of the Roman umbrella base is often a fixed value. In windy weather, people often place heavy objects on the Roman umbrella base to improve the stability of the base. However, there is a lack of reliable connection between the heavy objects placed on the base and the base, resulting in an unstable structure. Utility Model Content

[0007] In order to improve the related technology, when the lifting mechanism fails due to the weak force position of the lever being easily damaged and broken, the four bottom wheels cannot be extended normally, resulting in a defect of low structural reliability. When the user has the need to increase the counterweight, there is a lack of reliable connection between the heavy objects simply placed on the base and the base, and the structure is unstable. The present application provides a Roman umbrella assembled mobile base to improve the connection reliability between the bottom wheels and the mobile base, and provide users with a counterweight adjustable base with a stable connection structure.

[0008] The present application provides a Roman umbrella assembled mobile base, which adopts the following technical solution:

[0009] A Roman umbrella assembly type mobile base, wherein the umbrella pole of the Roman umbrella is installed above the mobile base, the upper end surface of the mobile base is provided with a mounting seat for fixing the umbrella pole, the lower end surface of the mobile base is provided with a bottom wheel and a support plate, and the lower end surface of the mobile base is provided with a first recovery groove for recovering the bottom wheel and a second recovery groove for recovering the support plate;

[0010] A swing assembly connected to the bottom wheel is provided in the first recovery groove, and the bottom wheel is driven by the swing assembly to extend out of the first recovery groove to assist the mobile base to move or retract into the first recovery groove;

[0011] A telescopic assembly connected to the support plate is provided in the second recovery groove, and the support plate is extended out of the second recovery groove to support the mobile base or retracted into the second recovery groove under the drive of the telescopic assembly;

[0012] The two sides of the movable seat are symmetrically provided with counterweight grooves for installing pre-equipped counterweight blocks.

[0013] Optionally, the bottom wheel is connected to the swing assembly via a support rod, and the swing assembly includes a first drive motor, a driving gear disposed at an output end of the first drive motor, a driven gear meshed with the driving gear, and a rotating rod rotatably disposed on an inner wall of the first recovery groove, the driven gear is sleeved on one end of the rotating rod, and an end of the support rod away from the bottom wheel is fixed to the rotating rod.

[0014] Optionally, a limit plate is fixed to the inner wall of the first recovery groove, and the limit plate is provided with an arc-shaped groove for the support rod to be clamped.

[0015] Optionally, the bottom wheel is provided with a bottom plate, and at least two positioning rings are fixed to the bottom plate, and the positioning ring is arranged on the same side as the limiting plate. A wire taking-up reel is provided on the limiting plate, and a cable is wound on the wire taking-up reel, and one end of the cable is fixed to the positioning ring. A second driving motor is provided on one side of the wire taking-up reel, and the second driving motor controls the circumferential rotation of the wire taking-up reel to recover or release the cable.

[0016] Optionally, the telescopic assembly includes a third driving motor and a connecting column, one end of the connecting column is fixed to the output end of the third driving motor, and the other end of the connecting column is fixed to the support plate.

[0017] Optionally, a mounting groove is provided on the upper end surface of the movable base, the mounting base is fixed to the mounting groove by bolts, a mounting hole is provided at one end of the mounting base away from the movable base, and the umbrella pole is screwed into the mounting hole.

[0018] Optionally, a pressure rod is provided on the surface of the counterweight block, and a positioning groove for clamping one end of the pressure rod is provided on the upper end surface of the movable base.

[0019] By adopting the above technical solution, when the Roman umbrella is placed statically, the support plate remains extended from the second recovery groove, and the bottom wheel is recovered in the second recovery groove. The support plate plays a supporting role and can also prevent the Roman umbrella from being displaced due to the sliding of the bottom wheel.

[0020] When the user needs to switch the Roman umbrella from a static placement state to a mobile state, while the support plate remains extended out of the second recovery slot, the first drive motor is used to control the support rod of the bottom wheel to rotate, so that the bottom wheel located in the first recovery slot is extended until the support rod is perpendicular to the ground. Then the third drive motor is used to control the support plate to be retracted into the second recovery slot, completing the state switching, and the user can then push the mobile base.

[0021] When the bottom wheel rotates to the working position, the side of the support rod close to the edge of the mobile base is against the limit plate to prevent the bottom wheel from shifting toward the side of the limit plate. At the same time, the second drive motor controls the wire reel to rotate and retract part of the cable, so that the cable between the bottom wheel and the wire reel is tightened to prevent the bottom wheel from shifting toward the side away from the limit plate, thereby improving the stability of the bottom wheel posture when the bottom wheel assists the mobile base to slide, and further improving the structural stability of the mobile base.

[0022] When the user needs to add counterweight, the pre-prepared counterweight block is placed in the counterweight slot, and then the pressure rod is lowered so that one end of the pressure rod is engaged in the positioning slot. The user can adjust the number of counterweight blocks according to the actual application scenario and thus change the mass of the mobile base. The operation is simple and convenient. Even in windy weather, the Roman umbrella is not easily blown down. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the upper end surface of the mobile base.

[0025] Figure 2It is a structural schematic diagram of the lower end surface of the mobile base.

[0026] Figure 3 This is an exploded view of the umbrella pole and the mounting base.

[0027] Figure 4 It is an exploded view of the support plate and the second drive motor.

[0028] Figure 5 It is a schematic diagram of the partial structure of the mobile base.

[0029] Figure 6 It is a structural schematic diagram of the swing assembly.

[0030] Figure 7 It is a structural diagram of the swing component from another perspective.

[0031] Figure 8 yes Figure 7 Enlarged view of part A in the middle.

[0032] Fig. 9 It is an exploded view of the counterweight and the mobile base.

[0033] In the figure: 1. umbrella pole; 2. mobile base; 3. mounting base; 4. bottom wheel; 5. support plate; 6. first recovery groove; 7. second recovery groove; 8. counterweight block; 9. counterweight groove; 10. first drive motor; 11. driving gear; 12. driven gear; 13. rotating rod; 14. first motor seat; 15. bearing seat; 16. limit plate; 17. arc groove; 18. bottom plate; 19. positioning ring; 20. take-up drum; 21. cable; 22. second drive motor; 23. third drive motor; 24. connecting column; 25. mounting groove; 26. mounting hole; 27. pressure rod; 28. positioning groove; 29. ​​support rod. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The embodiment of the utility model provides a Roman umbrella assembly type mobile base, such as Figures 1 to 9 As shown, the umbrella pole 1 of the Roman umbrella is installed above the mobile base 2, the upper end surface of the mobile base 2 is provided with a mounting seat 3 for fixing the umbrella pole 1, the lower end surface of the mobile base 2 is provided with a bottom wheel 4 and a support plate 5, and the lower end surface of the mobile base 2 is provided with a first recovery groove 6 for the bottom wheel 4 to recover and a second recovery groove 7 for the support plate 5 to recover;

[0036] A swing assembly connected to the bottom wheel 4 is provided in the first recovery groove 6. The bottom wheel 4 extends out of the first recovery groove 6 under the drive of the swing assembly to assist the mobile base 2 to move or retract into the first recovery groove 6;

[0037] A telescopic assembly connected to the support plate 5 is provided in the second recovery slot 7. The support plate 5 is extended out of the second recovery slot 7 to support the mobile base 2 or retracted into the second recovery slot 7 under the drive of the telescopic assembly.

[0038] The two sides of the moving seat are symmetrically provided with counterweight grooves 9 for installing the pre-equipped counterweight blocks 8.

[0039] Specifically, in this embodiment, there are four bottom wheels 4, which are respectively located at the four corners of the lower end surface of the mobile base 2, and there are four support plates 5, which are respectively located at the four corners of the lower end surface of the mobile base 2. Compared with the bottom wheels 4, the support plates 5 are arranged closer to the center position of the mobile base 2.

[0040] According to the actual movement state of the mobile base 2, the bottom wheel 4 and the support plate 5 each have two working postures. For the bottom wheel 4: the bottom wheel 4 includes a sliding posture and a first standby posture. In the sliding posture, the bottom wheel 4 and the support rod 29 are perpendicular to the ground, so that the rolling surface of the bottom wheel 4 contacts the ground; in the first standby posture, the bottom wheel 4 and the support rod 29 are parallel to the ground, and the bottom wheel 4 body is retracted into the first recovery groove 6; when the bottom wheel 4 switches from the sliding posture to the first standby posture, the bottom wheel 4 rotates toward the first recovery groove 6 with one end of the support rod 29 as the rotation center, so that the bottom wheel 4 and the support rod 29 rotate from a state perpendicular to the ground to a state parallel to the ground.

[0041] Regarding the support plate 5: the support plate 5 includes a supporting posture and a second standby posture. In the supporting posture, the support plate 5 extends out of the second recovery groove 7 and is parallel to the ground to support the mobile base 2 and prevent the mobile base 2 from shifting; in the second standby posture, the support plate 5 retreats into the second recovery groove 7; when the support plate 5 switches from the supporting posture to the second standby posture, the support plate 5 slides from outside the second recovery groove 7 to inside the second recovery groove 7 under the drive of the telescopic assembly.

[0042] In a preferred embodiment of the present utility model, the bottom wheel 4 is connected to the swing assembly through a support rod 29, and the swing assembly includes a first drive motor 10, a driving gear 11 arranged at the output end of the first drive motor 10, a driven gear 12 meshed with the driving gear 11, and a rotating rod 13 rotatably arranged on the inner wall of the first recovery groove 6, the driven gear 12 is sleeved on one end of the rotating rod 13, and the end of the support rod 29 away from the bottom wheel 4 is fixed to the rotating rod 13.

[0043] Specifically, in the present embodiment, the first drive motor 10 is installed and fixed in the first recovery groove 6 through the first motor seat 14, and the first motor seat 14 is fixed on the inner wall of the first recovery groove 6. The driving gear 11 is fixed on the output shaft of the first drive motor 10, and the rotating rod 13 is arranged parallel to the output shaft of the first drive motor 10. The driven gear 12 fixed on the rotating rod 13 is meshed with the driving gear 11 to transmit the rotation of the output shaft of the first drive motor 10 to the rotating rod 13. Since the end of the support rod 29 away from the bottom wheel 4 is sleeved and fixed on the rotating rod 13, when the rotating rod 13 rotates circumferentially, the support rod 29 rotates accordingly, thereby controlling the bottom wheel 4 to extend out of the first recovery groove 6 or retract into the first recovery groove 6.

[0044] A bearing seat 15 is fixed on the inner wall of the first recovery groove 6 , and one end of the rotating rod 13 away from the driven gear 12 is installed on the bearing seat 15 , thereby realizing a rotating connection.

[0045] In a preferred embodiment of the present invention, a limiting plate 16 is fixed to the inner wall of the first recovery groove 6 , and the limiting plate 16 is provided with an arc groove 17 for the support rod 29 to engage.

[0046] Specifically, in this embodiment, the limit plate 16 is disposed on a side of the first motor base 14 away from the bottom wall of the first recovery groove 6 , and when the bottom wheel 4 rotates to a sliding posture, the side wall of the support rod 29 abuts against the groove wall of the arc groove 17 .

[0047] In a preferred embodiment of the utility model, the bottom wheel 4 is provided with a bottom plate 18, and at least two positioning rings 19 are fixed to the bottom plate 18. The positioning ring 19 is arranged on the same side as the limiting plate 16. A wire reel 20 is arranged on the limiting plate 16. A cable 21 is wound on the wire reel 20. One end of the cable 21 is fixed to the positioning ring 19. A second drive motor 22 is arranged on one side of the wire reel 20. The second drive motor 22 controls the circumferential rotation of the wire reel 20 to recover or release the cable 21.

[0048] Specifically, in the present embodiment, the retraction and extension of the cable 21 cooperate with the rotation of the bottom wheel 4. When the first drive motor 10 controls the bottom wheel 4 to switch from the sliding posture to the first standby posture, the second drive motor 22 controls the take-up reel 20 to rotate to release the cable 21; when the first drive motor 10 controls the bottom wheel 4 to switch from the first standby posture to the sliding posture, the second drive motor 22 controls the take-up reel 20 to rotate in the opposite direction to retract part of the cable 21. When the bottom wheel 4 is in the sliding posture, the cable 21 cooperates with the limit plate 16 to make the posture of the bottom wheel 4 more stable and less prone to displacement.

[0049] The four bottom wheels 4 are controlled by corresponding swing components respectively, which can effectively avoid the situation that the failure of one swing component causes the other bottom wheels 4 to fail to work normally.

[0050] In a preferred embodiment of the present invention, the telescopic assembly includes a third driving motor 23 and a connecting column 24 , one end of the connecting column 24 is fixed to the output end of the third driving motor 23 , and the other end of the connecting column 24 is fixed to the support plate 5 .

[0051] Specifically, in the present embodiment, the output end of the third drive motor 23 is coaxially arranged with the connecting column 24, and the third drive motor 23 is a reciprocating motor to control the support plate 5 to slide in the second recovery groove 7. When the bottom wheel 4 needs to switch from the first standby posture to the sliding posture, the third drive motor 23 first controls the support plate 5 to extend out of the second recovery groove 7 to support the mobile base 2 and leave space for the rotation of the bottom wheel 4. After the bottom wheel 4 completes the posture switching, the third drive motor 23 controls the support plate 5 to retract into the second recovery groove 7 to avoid the bottom wheel 4 from bearing the weight of the Roman umbrella and the mobile base 2 when rotating, which is beneficial to the bottom The situation where the wheel 4 and related components are under greater pressure; when the bottom wheel 4 needs to switch the sliding posture to the first standby posture, the third drive motor 23 controls the support plate 5 to extend out of the second recovery groove 7 to replace the bottom wheel 4 to support the mobile base 2, and the distance that the support plate 5 extends from the lower end surface of the mobile base 2 is not less than the distance that the rolling surface of the bottom wheel 4 extends from the lower end surface of the mobile base 2. After the bottom wheel 4 completes the posture switching, the user can control the third drive motor 23 to retract the support plate 5 into the second recovery groove 7, and use the lower end surface of the mobile base 2 as the support surface, or the support plate 5 can be not retracted, and the lower end surface of the support plate 5 can be used as the support surface.

[0052] In a preferred embodiment of the utility model, a mounting groove 25 is formed on the upper end surface of the mobile base 2, and the mounting base 3 is fixed to the mounting groove 25 by bolts. A mounting hole 26 is formed at one end of the mounting base 3 away from the mobile base 2, and the umbrella pole 1 is screwed into the mounting hole 26.

[0053] Specifically, in the present embodiment, the connection structure between the umbrella pole 1 and the mounting seat 3 is simple and reliable, which facilitates the user to install or disassemble the Roman umbrella.

[0054] In a preferred embodiment of the present invention, a pressure rod 27 is provided on the surface of the counterweight block 8 , and a positioning groove 28 for clamping one end of the pressure rod 27 is provided on the upper end surface of the movable base 2 .

[0055] Specifically, in this embodiment, after the counterweight block 8 is placed in the counterweight slot 9, the pressure rod 27 performs auxiliary limiting to reduce the probability of the counterweight block 8 falling out of the counterweight slot 9 under the action of external force.

[0056] In summary, when the Roman umbrella is placed statically, the support plate 5 remains extended from the second recovery groove 7, and the bottom wheel 4 is recovered in the second recovery groove 7. The support plate 5 plays a supporting role and can also prevent the Roman umbrella from being displaced due to the sliding of the bottom wheel 4.

[0057] When the user needs to switch the Roman umbrella from a static placement state to a mobile state, while the support plate 5 remains extended out of the second recovery slot 7, the first drive motor 10 is used to control the support rod 29 of the bottom wheel 4 to rotate, so that the bottom wheel 4 located in the first recovery slot 6 is extended until the support rod 29 is perpendicular to the ground, and then the support plate 5 is controlled by the third drive motor 23 to retract the second recovery slot 7 to complete the state switching, and the user can then push the mobile base 2.

[0058] When the bottom wheel 4 rotates to the working position, the side of the support rod 29 close to the edge of the mobile base 2 abuts against the limit plate 16 to prevent the bottom wheel 4 from shifting toward the side of the limit plate 16. At the same time, the second drive motor 22 controls the wire reel 20 to rotate and retract part of the cable 21, so that the cable 21 between the bottom wheel 4 and the wire reel 20 is tightened to prevent the bottom wheel 4 from shifting toward the side away from the limit plate 16, thereby improving the stability of the posture of the bottom wheel 4 when the bottom wheel 4 assists the mobile base 2 to slide, and further improving the structural stability of the mobile base 2.

[0059] When the user needs to increase the counterweight, the pre-prepared counterweight block 8 is placed in the counterweight slot 9, and then the pressure rod 27 is lowered so that one end of the pressure rod 27 is engaged in the positioning slot 28. The user can adjust the number of counterweight blocks 8 according to the actual application scenario and thus change the mass of the mobile base 2. The operation is simple and convenient. Even in windy weather, the Roman umbrella is not easily blown down.

Claims

1. A Roman umbrella assembly type mobile base, wherein the umbrella pole (1) of the Roman umbrella is installed above the mobile base (2), characterized in that: The upper end surface of the mobile base (2) is provided with a mounting seat (3) for fixing the umbrella pole (1), and the lower end surface of the mobile base (2) is provided with a bottom wheel (4) and a support plate (5), and the lower end surface of the mobile base (2) is provided with a first recovery groove (6) for recovering the bottom wheel (4) and a second recovery groove (7) for recovering the support plate (5); A swing assembly connected to the bottom wheel (4) is arranged in the first recovery groove (6); the bottom wheel (4) is driven by the swing assembly to extend out of the first recovery groove (6) to assist the mobile base (2) to move or retract into the first recovery groove (6); A telescopic component connected to the support plate (5) is arranged in the second recovery groove (7); the support plate (5) is extended out of the second recovery groove (7) to support the movable base (2) or retracted into the second recovery groove (7) under the drive of the telescopic component; Counterweight grooves (9) for installing pre-equipped counterweight blocks (8) are symmetrically provided on both sides of the mobile base.

2. The Roman umbrella assembled mobile base according to claim 1, characterized in that: The bottom wheel (4) is connected to the swing assembly via a support rod (29), and the swing assembly comprises a first drive motor (10), a driving gear (11) arranged at the output end of the first drive motor (10), a driven gear (12) meshed with the driving gear (11), and a rotating rod (13) rotatably arranged on the inner wall of the first recovery groove (6), the driven gear (12) being sleeved on one end of the rotating rod (13), and the end of the support rod (29) away from the bottom wheel (4) being fixed to the rotating rod (13).

3. The Roman umbrella assembled mobile base according to claim 2, characterized in that: A limit plate (16) is fixed to the inner wall of the first recovery groove (6), and the limit plate (16) is provided with an arc groove (17) for the support rod (29) to be clamped.

4. The Roman umbrella assembled mobile base according to claim 3, characterized in that: The bottom wheel (4) is provided with a bottom plate (18), and at least two positioning rings (19) are fixed to the bottom plate (18). The positioning rings (19) are arranged on the same side as the limiting plate (16). A wire take-up drum (20) is arranged on the limiting plate (16), and a cable (21) is wound on the wire take-up drum (20). One end of the cable (21) is fixed to the positioning ring (19). A second drive motor (22) is arranged on one side of the wire take-up drum (20), and the second drive motor (22) controls the circumferential rotation of the wire take-up drum (20) to recover or release the cable (21).

5. The Roman umbrella assembled mobile base according to claim 1, characterized in that: The telescopic assembly comprises a third drive motor (23) and a connecting column (24), one end of the connecting column (24) is fixed to the output end of the third drive motor (23), and the other end of the connecting column (24) is fixed to the support plate (5).

6. The assembled mobile base of the Roman umbrella according to claim 1, characterized in that: The upper end surface of the movable base (2) is provided with a mounting groove (25), the mounting base (3) is fixed to the mounting groove (25) by means of bolts, the end of the mounting base (3) away from the movable base (2) is provided with a mounting hole (26), and the umbrella rod (1) is screwed into the mounting hole (26).

7. The Roman umbrella assembled mobile base according to claim 1, characterized in that: A pressure rod (27) is arranged on the surface of the counterweight block (8), and a positioning groove (28) for clamping one end of the pressure rod (27) is provided on the upper end surface of the movable base (2).

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