Center column type sunshade capable of being automatically opened

Abstract

The utility model relates to the technical field of beach umbrellas, and discloses a center pillar type automatic opening beach umbrella which comprises a bottom plate, a supporting structure is installed at the bottom of the bottom plate, an automatic opening structure is installed at the top end of the bottom plate, and the automatic opening structure comprises a fixing cylinder, a lead screw, a motor, a sliding seat and a top seat. The bottom plate is provided with a lead screw through a fixing barrel and a motor, the side wall of the fixing barrel is provided with a sliding seat, the sliding seat is slidably connected with the outer wall of the fixing barrel through a sliding groove, the top seat is fixedly installed at the top end of the fixing barrel, a supporting rod is installed on the top seat through an upper rod and an installation sleeve, and the other end of the supporting rod is rotationally connected with the sliding seat; according to the automatic opening structure, the motor shaft of the motor drives the lead screw to rotate, the sliding base is controlled to slide on the fixing cylinder, the supporting rod rotates on the sliding base, the other end of the supporting rod drives the upper rod to rotate on the top base through the installation sleeve, and therefore the upper rod is opened or contracted, and stable thrust is provided.

Description

Technical Field

[0001] This utility model relates to the field of sunshade technology, and in particular to a central column type automatic opening sunshade. Background Technology

[0002] Center-pillar automatic opening sunshades are convenient sunshade devices based on mechanical transmission, pneumatic, or electric systems, widely used in outdoor leisure, commercial venues, and home gardens. Traditional sunshades mostly use manual opening and closing, which is cumbersome to operate, especially when the canopy is large or used frequently, resulting in a poor user experience. In recent years, with the development of automation technology, automatic opening sunshades have emerged, improving ease of use and safety, while also enhancing wind resistance and stability, meeting the modern consumer demand for intelligent and efficient outdoor products.

[0003] In existing technologies, sun umbrellas generally require manual opening, which reduces convenience and comfort. This is especially true for large sun umbrellas, where manual opening can be strenuous and slow. This makes it even more difficult for the elderly, children, or people with disabilities to operate. Therefore, we propose a center-pillar automatic opening sun umbrella. Utility Model Content

[0004] The purpose of this utility model is to provide a central column type automatic opening sunshade to solve the problem that the existing sunshade technology mentioned in the background art reduces the convenience and comfort, especially for large-sized sunshades, which may be difficult to open manually and the process of opening the sunshade manually is relatively slow, making it more difficult for the elderly, children or people with physical disabilities to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a central column type automatic opening sunshade, including a base plate, a support structure installed at the bottom of the base plate, and an automatic opening structure installed at the top of the base plate. The automatic opening structure includes a fixed cylinder, a lead screw, a motor, a slide block, and a top block. The lead screw is installed on the base plate through the fixed cylinder and the motor. The side wall of the fixed cylinder is provided with a sliding groove. The slide block is slidably connected to the outer wall of the fixed cylinder through a sliding groove. The top block is fixedly installed on the top of the fixed cylinder. The top block is equipped with a support rod through an upper rod and an mounting sleeve. The other end of the support rod is rotatably connected to the slide block.

[0006] As a preferred embodiment, the support structure includes a support frame, a fixing block, casters, a limiting frame, and a counterweight. The support frame is fixedly installed at the bottom end of the base plate, and the inside of the support frame is set as a cavity. The fixing block is fixedly installed around the bottom end of the support frame, and the casters are installed at the bottom end of the fixing block.

[0007] As a preferred embodiment, the limiting frame is fixedly installed on the bottom wall of the cavity of the support frame, the limiting frame divides the support frame into several cavities, the bottom wall of the support frame is fixedly installed with limiting posts, the bottom of the counterweight is provided with a limiting groove that matches the limiting posts, and the top of the counterweight is fixedly installed with a pull rope.

[0008] As a preferred embodiment, the fixed cylinder is fixedly installed on the top of the base plate, the lead screw is rotatably installed inside the fixed cylinder, and the bottom end of the lead screw extends through the top wall of the base plate and the support frame into the support frame. The motor is fixedly installed on the bottom wall of the support frame, and the motor shaft of the motor is fixedly connected to the bottom end of the lead screw.

[0009] As a preferred embodiment, the slide groove is provided on the side wall of the fixed cylinder, the slide block is threaded onto the lead screw, and the slide block extends through the slide groove to the outside of the fixed cylinder, and the slide block and the outer wall of the fixed cylinder are slidably connected.

[0010] As a preferred embodiment, the upper rod is rotatably mounted on the top seat, the mounting sleeve is fixedly mounted in the middle position of the upper rod, and the support rod is rotatably mounted on the mounting sleeve.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] The automatic opening mechanism uses a motor shaft to drive a lead screw, which in turn controls the slide to slide on the fixed cylinder. The support rod rotates on the slide, and the other end of the support rod drives the upper rod to rotate on the top seat via an mounting sleeve. This allows the upper rod to open or retract, providing a relatively stable thrust. This prevents sudden impacts or vibrations when the slide slides on the fixed cylinder, reduces component wear, and improves system stability. It can provide a large thrust, and the transmission ratio is adjustable, making it suitable for sun umbrellas of different sizes. It can accommodate larger umbrella surfaces and ensures that it is not prone to failure due to wind resistance or the weight of the umbrella ribs during opening.

[0013] By aligning the limiting grooves and limiting posts on the counterweight blocks within the designed support structure, the counterweight blocks are placed into the cavity of the limiting frame. The counterweight blocks increase the weight of the support frame. By combining several counterweight blocks, the center of gravity of the overall structure is lowered, enhancing the wind resistance of the sunshade and preventing it from tipping over due to wind or external forces. The combination of multiple counterweight blocks allows for flexible adjustment of the counterweight according to the size of the sunshade and the wind intensity of the environment. The precise alignment of the limiting grooves and limiting posts ensures that the counterweight blocks are firmly placed in the cavity of the limiting frame, preventing them from sliding or shifting due to vibration or external forces. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a schematic diagram of the support structure of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the counterweight block of this utility model;

[0017] Figure 4 This is one of the schematic diagrams of the automatic opening structure of this utility model;

[0018] Figure 5 This is the second schematic diagram of the automatic opening structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Support structure; 21. Support frame; 22. Fixing block; 23. Caster wheel; 24. Limiting frame; 25. Limiting post; 26. Counterweight block; 27. Limiting groove; 28. Pull rope; 3. Automatic opening structure; 31. Fixing cylinder; 32. Lead screw; 33. Motor; 34. Slide groove; 35. Slide seat; 36. Top seat; 37. Upper rod; 38. Mounting sleeve; 39. Support rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see the appendix Figure 1 - Appendix Figure 3A centrally mounted automatic opening sunshade includes a base plate 1, a support structure 2 installed at the bottom of the base plate 1, and an automatic opening structure 3 installed at the top of the base plate 1. The support structure 2 includes a support frame 21, a fixing block 22, casters 23, a limiting frame 24, and a counterweight 26. The support frame 21 is fixedly installed at the bottom of the base plate 1, and the interior of the support frame 21 is hollow. The fixing block 22 is fixedly installed around the bottom of the support frame 21. The casters 23 are installed at the bottom of the fixing block 22. The fixing block 22 is prior art and includes a component for limiting rolling. The limiting frame 24 is fixedly installed on the bottom wall of the cavity of the support frame 21. The support frame 21 is divided into several cavities. The bottom wall of the support frame 21 is fixedly installed with limiting posts 25 inside the cavities of the limiting frame 24. The counterweight 26 and the cavities divided by the limiting frame 24 are matched with each other. The bottom of the counterweight 26 is provided with a limiting groove 27 that is adapted to the limiting post 25. The top of the counterweight 26 is fixedly installed with a pull rope 28. The counterweight 26 is moved by pulling the rope 28, so that the limiting groove 27 extends into the limiting post 25, thereby placing the counterweight 26 on the support frame 21. The limiting post 25 limits the counterweight 26. The several counterweights 26 provide pressure to the support frame 21, thereby improving the stability of the support frame 21.

[0023] Specifically, in the support structure 2, the limiting groove 27 and the limiting post 25 on the counterweight 26 are aligned, so that the counterweight 26 is placed into the cavity of the limiting frame 24. The counterweight 26 adds weight to the support frame 21. By combining several counterweights 26, the center of gravity of the overall structure is lowered, enhancing the wind resistance of the sunshade and preventing it from tipping over due to wind or external forces. By combining multiple counterweights 26, the counterweight can be flexibly adjusted according to the size of the sunshade and the wind intensity of the environment. The precise alignment of the limiting groove 27 and the limiting post 25 ensures that the counterweight 26 can be firmly placed in the cavity of the limiting frame 24, avoiding the counterweight from sliding or shifting due to vibration or external forces.

[0024] Example 2:

[0025] Please see the appendix Figure 4 and attached Figure 5Based on Embodiment 1, the automatic opening structure 3 includes a fixed cylinder 31, a lead screw 32, a motor 33, a slide 35, and a top seat 36. The fixed cylinder 31 is fixedly installed on the top of the base plate 1. The lead screw 32 is rotatably installed inside the fixed cylinder 31, and the bottom end of the lead screw 32 extends through the top wall of the base plate 1 and the support frame 21 into the support frame 21. The motor 33 is fixedly installed on the bottom wall of the support frame 21, and the motor shaft of the motor 33 is fixedly connected to the bottom end of the lead screw 32. The side wall of the fixed cylinder 31 is provided with a sliding groove 34, and the slide 35... The 35 thread is installed on the lead screw 32, and the slide 35 extends through the slide groove 34 to the outside of the fixed cylinder 31. The slide 35 and the outer wall of the fixed cylinder 31 are slidably connected. The motor shaft of the motor 33 drives the lead screw 32 to rotate. The lead screw 32 controls the slide 35 to slide on the fixed cylinder 31. The top seat 36 is fixedly installed on the top of the fixed cylinder 31. The upper rod 37 is rotatably installed on the top seat 36. The mounting sleeve 38 is fixedly installed in the middle position of the upper rod 37. The support rod 39 is rotatably installed on the mounting sleeve 38. The other end of the support rod 39 is rotatably connected to the slide 35.

[0026] Specifically, in the automatic opening structure 3, the motor shaft of motor 33 drives the lead screw 32 to rotate, controlling the slide 35 to slide on the fixed cylinder 31. The support rod 39 rotates on the slide 35, and the other end of the support rod 39 drives the upper rod 37 to rotate on the top seat 36 through the mounting sleeve 38, thereby opening or closing the upper rod 37 and providing a relatively stable thrust. This prevents sudden impacts or vibrations when the slide 35 slides on the fixed cylinder 31, reduces component wear, improves system stability, provides greater thrust, and has an adjustable transmission ratio, making it suitable for sun umbrellas of different sizes. It can adapt to larger umbrella surfaces and ensures that it is not prone to failure due to wind resistance or the weight of the umbrella ribs during opening.

[0027] Working principle of this utility model: This utility model is a central column type automatic opening sunshade. The base plate 1 is moved to the desired position by the universal wheels 23. Then, the limiting groove 27 and the limiting post 25 on the counterweight block 26 are aligned, allowing the counterweight block 26 to be placed into the cavity of the limiting frame 24. The counterweight block 26 adds weight to the support frame 21, improving its stability. Multiple counterweight blocks 26 are combined to increase weight; each counterweight block 26 has a low mass, making it easy to carry. Start-up... The motor 33 drives the lead screw 32 to rotate via its motor shaft. The lead screw 32 controls the slide block 35 to slide on the fixed cylinder 31. The forward and reverse rotation of the motor 33 controls the up and down sliding of the slide block 35. When the slide block 35 slides, the support rod 39 rotates on the slide block 35. The other end of the support rod 39 drives the upper rod 37 to rotate on the top seat 36 via the mounting sleeve 38, thereby opening or retracting the upper rod 37. The motor 33 and the lead screw 32 enable the upper rod 37 to open and retract automatically.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A central column type automatic opening sunshade, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is equipped with a support structure (2), and the top of the base plate (1) is equipped with an automatic opening structure (3). The automatic opening structure (3) includes a fixed cylinder (31), a lead screw (32), a motor (33), a slide (35), and a top seat (36). The base plate (1) is equipped with a lead screw (32) through the fixed cylinder (31) and the motor (33). The side wall of the fixed cylinder (31) is provided with a slide (35) which is slidably connected to the outer wall of the fixed cylinder (31) through a slide groove (34). The top seat (36) is fixedly installed on the top of the fixed cylinder (31). The top seat (36) is equipped with a support rod (39) through an upper rod (37) and an installation sleeve (38). The other end of the support rod (39) is rotatably connected to the slide (35).

2. The central column type automatic opening sunshade according to claim 1, characterized in that: The support structure (2) includes a support frame (21), a fixing block (22), a caster wheel (23), a limiting frame (24), and a counterweight block (26). The support frame (21) is fixedly installed at the bottom end of the base plate (1). The support frame (21) is hollow inside. The fixing block (22) is fixedly installed around the bottom end of the support frame (21). The caster wheel (23) is installed at the bottom end of the fixing block (22).

3. The central column type automatic opening sunshade according to claim 2, characterized in that: The limiting frame (24) is fixedly installed on the bottom wall of the cavity of the support frame (21). The limiting frame (24) divides the support frame (21) into several cavities. The bottom wall of the support frame (21) is fixedly installed with a limiting post (25). The bottom of the counterweight (26) is provided with a limiting groove (27) that matches the limiting post (25). The top of the counterweight (26) is fixedly installed with a pull rope (28).

4. The central column type automatic opening sunshade according to claim 1, characterized in that: The fixed cylinder (31) is fixedly installed on the top of the base plate (1), the lead screw (32) is rotatably installed inside the fixed cylinder (31), and the bottom end of the lead screw (32) extends through the top wall of the base plate (1) and the support frame (21) into the support frame (21). The motor (33) is fixedly installed on the bottom wall of the support frame (21), and the motor shaft of the motor (33) is fixedly connected to the bottom end of the lead screw (32).

5. The central column type automatic opening sunshade according to claim 4, characterized in that: The groove (34) is provided on the side wall of the fixed cylinder (31), the slide block (35) is threaded on the lead screw (32), and the slide block (35) extends through the groove (34) to the outside of the fixed cylinder (31), and the slide block (35) and the outer wall of the fixed cylinder (31) are slidably connected.

6. The central column type automatic opening sunshade according to claim 5, characterized in that: The upper rod (37) is rotatably mounted on the top seat (36), the mounting sleeve (38) is fixedly mounted in the middle position of the upper rod (37), and the support rod (39) is rotatably mounted on the mounting sleeve (38).

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